GMC Worldzz: February 2020

Saturday, February 29, 2020

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 396

harness connector at both sensors.

5. Ignition ON, verify the DTC is set for the new location in which the malfunctioning sensor is installed.

瀚慖f the DTC does not set for the new location, test the signal circuit terminal 3 for a short to voltage, short to ground, or an open/high

resistance. If the circuit tests normal, replace the K41 Parking Assist Control Module.

6. If the DTC sets for the new location in which the malfunctioning sensor is installed, replace the appropriate front object sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Front Object Alarm Sensor Replacement (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist

Systems/Parking Assist Distance Sensor/Service and Repair/Front Object Alarm Sensor Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for parking assist control module replacement,

setup and programming

B0956

DTC B0954, B0955, B0956, or B0957

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC B0954 01

- Parking Aid Front Sensor Left Corner Circuit Short to Battery

DTC B0954 06

- Parking Aid Front Sensor Left Corner Circuit Low Voltage/Open

DTC B0954 08

- Parking Aid Front Sensor Left Corner Circuit Performance - Signal Invalid

DTC B0954 21

- Parking Aid Front Sensor Left Corner Circuit Incorrect Period

DTC B0954 3A

- Parking Aid Front Sensor Left Corner Circuit Incorrect Component Installed

DTC B0955 01

- Parking Aid Front Sensor Left Middle Circuit Short to Battery

DTC B0955 06

- Parking Aid Front Sensor Left Middle Circuit Low Voltage/Open

DTC B0955 08

- Parking Aid Front Sensor Left Middle Circuit Performance - Signal Invalid

DTC B0955 21

- Parking Aid Front Sensor Left Middle Circuit Incorrect Period

DTC B0955 3A

- Parking Aid Front Sensor Left Middle Circuit Incorrect Component Installed

DTC B0956 01

- Parking Aid Front Sensor Right Middle Circuit Short to Battery

DTC B0956 06

- Parking Aid Front Sensor Right Middle Circuit Low Voltage/Open

DTC B0956 08

- Parking Aid Front Sensor Right Middle Circuit Performance - Signal Invalid

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 851

Electronic Suspension Control Description and Operation (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic

)/Description and Operation)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

Ignition ON, observe the scan tool Vertical Body Acceleration parameters. The parameters should be 0 m/s(2).

Circuit/System Testing

1. Ignition ON, verify that DTC C0870 is not present.

瀚慖f the DTC is present, refer to DTC C0870 (See: C Code Charts/C0870) to diagnose that DTC prior to this diagnostic.

2. Ignition OFF, disconnect the harness connector at the appropriate B162 vertical body acceleration sensor.

3. Ignition OFF, open/close doors, and wait 60 seconds. Test for less than 5 ohm between the low reference circuit terminal 3 and ground.

瀚慖f greater than the specified value, test the low reference circuit for short to voltage or an open/high resistance. If the circuit tests normal,

replace the K19 suspension control module.

4. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.

瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,

replace the K19 suspension control module.

瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K19

suspension control module.

5. Verify the scan tool Vertical Body Acceleration parameter is less than -3 m/s(2).

瀚慖f greater than the specified value, test the signal circuit for a short to ground. If the circuit tests normal, replace the K19 suspension

control module.

6. Install a fused jumper wire between the signal circuit terminal 2 and the low reference circuit terminal 3.

7. Verify the scan tool Vertical Body Acceleration parameter is greater than 3 m/s(2).

瀚慖f less than the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace

the K19 suspension control module.

8. If all circuits test normal, replace the B162 vertical body acceleration sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Electronic Suspension Front Vertical Accelerometer Replacement - Upper (See: Sensors and Switches/Sensors and Switches - Steering and

Suspension/Sensors and Switches - Suspension/Acceleration Sensor/Service and Repair/Electronic Suspension Front Vertical Accelerometer

Replacement - Upper)

* Electronic Suspension Rear Position Sensor Replacement (See: Sensors and Switches/Sensors and Switches - Steering and

Suspension/Sensors and Switches - Suspension/Ride Height Sensor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for suspension control module replacement, setup

and programming

C0605

DTC C0595, C0600, or C0605

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 107

瀚慖f greater than the specified range, test both control circuits terminals for an open/high resistance. If the circuits test normal, replace the

K36 SDM.

7. If all circuits test normal, replace the F105, F106 air bag or F112 seat belt retractor pretensioner.

DTC B0019-B0020

1. Ignition OFF, disconnect harness connector X206.

2. Disconnect the scan tool.

3. Wait 120 seconds, test for greater than 25 ohm between the control circuit terminals listed below on the SDM side of the connector:

* F105 Passenger instrument panel air bag stage 1 X206 terminal 1 and 2

* F105 Passenger instrument panel air bag stage 2 X206 terminal 4 and 5

瀚慖f less than the specified range, test for a short between the control circuits, check each connector and CPA to ensure that the shorting

bars are lifted. If the circuits and shorting bars tests normal, replace the K36 SDM.

4. Ignition ON, test for less than 11 V between the control circuit terminals listed below and ground:

* X206 control circuit terminal 1

* X206 control circuit terminal 2

* X206 control circuit terminal 4

* X206 control circuit terminal 5

瀚慖f greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the K36 SDM.

5. Ignition OFF, test for greater than 25 ohm between the control circuit terminals listed below and ground:

* X206 control circuit terminal 1

* X206 control circuit terminal 2

* X206 control circuit terminal 4

* X206 control circuit terminal 5

瀚慖f less than the specified range, test the control circuit for a short to ground. If the circuit tests normal, replace the K36 SDM.

6. Install a 3 A fused jumper wire between the control circuit terminals listed below:

* F105 Passenger instrument panel air bag stage 1 X206 terminal 1 and 2

* F105 Passenger instrument panel air bag stage 2 X206 terminal 4 and 5

7. Verify the scan tool Deployment Loop Resistance parameter is less than 2 ohm.

瀚慖f greater than the specified range, test both control circuits terminals for an open/high resistance. If the circuits test normal, replace the

K36 SDM.

8. If all circuits test normal, replace the F105 passenger instrument panel air bag.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Driver or Passenger Seat Side Inflatable Restraint Module Replacement (See: Restraints and Safety Systems/Air Bag Systems/Air

Bag/Service and Repair/Removal and Replacement/Driver or Passenger Seat Side Inflatable Restraint Module Replacement)

* Seat Belt Retractor Pretensioner Replacement - Front (See: Restraints and Safety Systems/Seat Belt Systems/Seat Belt Tensioner/Service

and Repair/Removal and Replacement/Seat Belt Retractor Pretensioner Replacement - Front)

* Instrument Panel Inflatable Restraint Module Replacement (See: Restraints and Safety Systems/Air Bag Systems/Air Bag/Service and

Repair/Removal and Replacement/Instrument Panel Inflatable Restraint Module Replacement)

* Roof Side Rail Inflatable Restraint Module Replacement (See: Restraints and Safety Systems/Air Bag Systems/Air Bag/Service and

Repair/Removal and Replacement/Roof Side Rail Inflatable Restraint Module Replacement)

* SIR/SRS Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Wiring Repairs/SIR/SRS Wiring Repairs)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming

B0020

DTC B0014-B0045

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 307

The headlamp switch is supplied with ground at all times. When the headlamp switch is placed in either the park or low beam position, ground is

applied to the tail lamp signal circuit to the body control module (BCM). The BCM responds by applying battery voltage to the left/right park

lamps, left/right side marker lamps and left/right tail lamps. This energizes the appropriate lamp.

Conditions for Running the DTC

* The engine is running.

* Headlamp switch in AUTO position.

* The ambient light is day.

Conditions for Setting the DTC

B260B 01 or B260C 01

The BCM detects a short to voltage on the daytime running lamp relay control circuit.

B260B 02 or B260C 02

The BCM detects a short to ground on the daytime running lamp relay control circuit.

B260B 04 or B260C 04

The BCM detects an open/high resistance on the daytime running lamp relay control circuit.

Action Taken When the DTC Sets

B260B 01 or B260C 01

The appropriate daytime running lamp will be continuously illuminated.

B260B 02, B260C 04, B260B 02 or B260C 04

The appropriate daytime running lamp will be inoperative.

Conditions for Clearing the DTC

* The DTC will be current for as long as the fault is present.

* When the fault is no longer present, the DTC will be a history DTC.

* A history DTC will clear after 50 ignition cycles.

Reference Information

Schematic Reference

Exterior Lights Schematics (See: Diagrams/Electrical Diagrams/Lighting and Horns/System Diagram/Exterior Lights Schematics)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Exterior Lighting Systems Description and Operation (See: Lighting and Horns/Description and Operation/Exterior Lighting Systems)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning)

Circuit/System Verification

Ignition ON, command the Left Dedicated Daytime Running Lamp and the Right Dedicated Daytime Running Lamp ON and OFF with a scan tool.

The E4C daytime running lamp - left and the E4D daytime running lamp - right should turn ON and OFF while changing between the commanded

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 208

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC B101D XX

- ECU Hardware

Circuit/System Description

The internal fault detection is handled inside the control module. The symptom byte listed in the DTC Descriptor is for engineering reference only.

No external circuit diagnosis is involved.

Conditions for Running the DTC

The module runs the program to detect an internal fault when power up is commanded. The only requirements are voltage and ground. This

program runs even if the voltage is out of the valid operating range.

Conditions for Setting the DTC

The module has detected an internal malfunction.

Action Taken When the DTC Sets

The module refuses all additional inputs.

Conditions for Clearing the DTC

* A current DTC clears when the malfunction is no longer present.

* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.

Diagnostic Aids

* This DTC may be stored as a history DTC without affecting the operation of the control module.

* Do not replace a control module based only on DTC B101D being set in history with the exception of the following control modules:

- K36 Inflatable Restraint Sensing and Diagnostic Module (SDM)

- K85 Passenger Presence Detection Module

- K10 Coolant Heater Control Module

* If DTC B101D is set as current, replace the appropriate control module.

Circuit/System Verification

Verify that DTC B101D is not set.

If the DTC is set, replace the module that set the DTC.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.

Control Module References (See: Testing and Inspection/Programming and Relearning) for module replacement, setup, and programming

B101E

DTC B101E

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 959

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC P0016

- Crankshaft Position - Intake Camshaft Position Not Plausible Bank 1

DTC P0017

- Crankshaft Position - Exhaust Camshaft Position Not Plausible Bank 1

DTC P0018

- Crankshaft Position - Intake Camshaft Position Not Plausible Bank 2

DTC P0019

- Crankshaft Position - Exhaust Camshaft Position Not Plausible Bank 2

Circuit/System Description

The engine control module (ECM) uses the crankshaft position sensor and the camshaft position sensor pulses to monitor the correlation between

the crankshaft and the camshaft position. An improper relative position can be caused by either engine timing or improper indexing of the camshaft

drive chain.

Conditions for Running the DTC

* DTCs P0010, P0011, P0013, P0014, P0020, P0021, P0023, P0024, P2088, P2089, P2090, P2091, P2092, P2093, P2094, or P2095 are not

set.

* The engine is operating for greater than 2 s.

* The engine must accelerate such that the camshaft position actuator system is commanded from the park position to the phased position. This

is considered a cam control cycle. There must be a minimum of 2 cam control cycles for at least 2.5 s each in the phased position.

* DTC P0016, P0017, P0018, and P0019 run continuously when the above conditions are met for approximately 10 min.

Conditions for Setting the DTC

The ECM detects the ECM learned camshaft position angle is greater than 10 degrees advanced or 10 degrees retarded in relationship to the

crankshaft.

The ECM detects the actual camshaft angle is advanced 15 degrees or retarded 21 degrees in relationship to the camshaft parked/reference position

for greater than 10 s.

Action Taken When the DTC Sets

DTCs P0016, P0017, P0018, and P0019 are Type B DTCs.

Conditions for Clearing the DTC

DTCs P0016, P0017, P0018, and P0019 are Type B DTCs.

Diagnostic Aids

* Inspect the engine for any recent engine mechanical repairs. An incorrectly installed camshaft, camshaft actuator, camshaft sensor, crankshaft

sensor, or timing chain can cause this DTC to set.

* An actuator that is in the full advance or retard position can cause this DTC to set.

* The presence of DTCs P0008 and P0009 along with P0016, P0017, P0018, and P0019 indicates a possible condition with the primary timing

chain and the alignment between both intermediate sprockets and the crankshaft. Or, the crankshaft reluctor wheel has moved and is no

longer referenced to top dead center (TDC).

* Observing the desired and actual camshaft angle parameters, with a scan tool before a DTC sets, may help to isolate whether a condition is

specific to one camshaft, one bank, or caused by a condition with the primary crankshaft timing.

Reference Information

Schematic Reference

Engine Controls Schematics (LAU) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)Engine Controls Schematics

(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference

Friday, February 28, 2020

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 272

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC B251A 01

- All Door Unlatch Circuit Short to Battery

DTC B251A 02

- All Door Unlatch Circuit Short to Ground

DTC B251B 02

- Driver Door Unlatch High Control Circuit Short to Ground

DTC B251B 04

- Driver Door Unlatch High Control Circuit Open

DTC B251C 04

- Passenger Door Unlatch High Control Circuit Open

DTC B251D 04

- Left Rear Door Unlatch High Control Circuit Open

DTC B251E 04

- Right Rear Door Unlatch High Control Circuit Open

Diagnostic Fault Information

Circuit/System Description

The system is designed so that when the operator approaches a locked vehicle with the keyless entry transmitter, the keyless entry control module

will detect the keyless entry transmitter and when an exterior door handle is pulled the keyless entry control module will command all doors to

unlock and the door to unlatch allowing the door to be pulled open.

Conditions for Running the DTC

The system voltage is 9-16 V.

Conditions for Setting the DTC

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 993

6. If all circuits/connections test normal, test or replace the B52 Heated Oxygen Sensor.

Component Testing

1. Ignition OFF, disconnect the harness connector at the B52 Heated Oxygen Sensor.

2. Test for 5-25 ohm between the control terminal 2 and the ignition terminal 1 of the B52 Heated Oxygen Sensor.

瀚慖f not within the specified range, replace the B52 Heated Oxygen Sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Heated Oxygen Sensor Replacement - Sensor 1 (LAU) (See: Powertrain Management/Computers and Control Systems/Oxygen

Sensor/Service and Repair/Heated Oxygen Sensor Replacement - Sensor 1)

* Heated Oxygen Sensor Replacement - Sensor 2 (LAU) (See: Powertrain Management/Computers and Control Systems/Oxygen

Sensor/Service and Repair/Heated Oxygen Sensor Replacement - Sensor 2)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for Engine Control Module replacement, setup, and

programming

P0032

DTC P0030, P0031, P0032, P0036, P0037, or P0038 (Without LF1)

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC P0030

- HO2S Heater Control Circuit Sensor 1

DTC P0031

- HO2S Heater Control Circuit Low Voltage Sensor 1

DTC P0032

- HO2S Heater Control Circuit High Voltage Sensor 1

DTC P0036

- Heater Control Circuit Sensor 2

DTC P0037

- HO2S Heater Control Circuit Low Voltage Sensor 2

DTC P0038

- HO2S Heater Control Circuit High Voltage Sensor 2

Diagnostic Fault Information

Circuit Description

The heated oxygen sensor (HO2S) heater reduces the time required for the oxygen sensor to reach operating temperature and maintains the

operating temperature during extended idle periods. When the ignition is turned to the ON position, ignition voltage is supplied directly to the

sensor heater. The Engine Control Module (ECM) controls the heater operation by first modulating the control circuit to ground when the sensors

are cold. This prevents the possibility of thermal shock to the sensor, from condensation build-up on the sensor, by controlling the sensors rate of

heating. After a predetermined amount of time, the ECM commands the heaters ON continuously. Once the sensor reaches operating temperature,

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 591

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC B2657 02

- Ignition Switch Halo Lamp Circuit Short to Ground

Diagnostic Fault Information

Circuit/System Description

The body control module (BCM) supplies a voltage reference through the backlight dimmer switch, which is part of the headlamp switch. When the

dimmer switch is placed in a desired brightness position, reference voltage is applied through the backlight dimmer switch to the BCM. The BCM

interprets this voltage signal, then applies a pulse width modulated (PWM) voltage through the backlight lamp control circuit. This will illuminate

the ignition mode switch halo lamp.

Conditions for Running the DTC

* The ignition is ON.

* The headlamps or park lamps are ON.

Conditions for Setting the DTC

The BCM detects a short to ground on the ignition switch halo lamp control circuit.

Action Taken When the DTC Sets

The BCM will not illuminate the ignition switch halo lamp.

Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.

* A history DTC will clear once 100 consecutive malfunction ignition cycles have occurred.

Reference Information

Schematic Reference

Interior Lights Dimming Schematics (See: Diagrams/Electrical Diagrams/Lighting and Horns/System Diagram/Interior Lights Dimming

Schematics)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Interior Lighting Systems Description and Operation (See: Lighting and Horns/Description and Operation/Interior Lighting Systems)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Technical Service Bulletin # 11-08-43-001 Date: 110801

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 138

Body/Glass - Windshield Wiper Chatter/Noise/Streaking

TECHNICAL

Bulletin No.: 11-08-43-001

Date: August 01, 2011

Subject: Windshield Wiper Chatter/Noise and/or Streaking (Perform Cleaning, Replace Wiper Blade as Necessary)

Models:

2007-2011 Cadillac Escalade, Escalade ESV, Escalade EXT

2007-2011 Chevrolet Avalanche, Suburban, Tahoe

2007-2011 GMC Yukon, Yukon XL

Avalanche and Escalade EXT Built Prior to March 17, 2011

All Other Utility Models Built Prior to April 4, 2011

Condition

Some customers may comment on windshield wiper chatter/noise, or that the wipers are streaking.

Cause

Most wiper conditions are caused by either contamination or damage. Contamination by bugs, road grime, sap and/or a buildup of vehicle

wash/wax treatments may cause wiper streaking. Wipers can be damaged by any of the following:

- Extreme dusty conditions

- Sand and salt

- Heat and sun

- Improper removal of snow and ice

Correction

Note

Additional information on wiper performance, cleaning and maintenance can be found in Corporate Bulletin Number 06-08-43-003C.

Wash the windshield thoroughly and clean the outside of the windshield with glass cleaner. Also clean the rubber wiper blades using a lint free

cloth or paper towel soaked with windshield washer fluid or a mild detergent.

Tip

For a larger scale buildup on the windshield, use a non-abrasive cleaner such as Bon-Ami* (www.faultless.com) cleanser with a wet sponge, being

sure to use plenty of water to avoid scratching the glass. Flush the surface and body panels completely.

If cleaning does not improve the condition, replace the windshield wiper blades with GM P/N 22793882. The replacement blade is a dual extrusion

rubber material for durability performance.

Note

The outboard end of the passenger side wiper tends to sit off the surface of the windshield due to the design of the wiper blade, and the curvature of

the glass. This is a normal condition which leaves a "no contact" area at the lower edge of the wipe pattern, and no correction should be attempted.

The Full Size Utilities use a conventional blade design, which has a slightly different interface to the windshield than the flat blade design used on

the Pickups. Examples of the two designs and are shown in the graphics below:

Utilities

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 139

Pickups

* We believe this source and their products to be reliable. There may be additional manufacturers of such products/materials. General Motors does

not endorse, indicate any preference for, or assume any responsibility for the products or material from this firm or for any such items that may be

available from other sources.

Parts Information

Warranty Information

For vehicles repaired under warranty, use the table.

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 992

* If the condition is intermittent, move the related harnesses and connectors, with the engine operating, while monitoring the scan tool circuit

status parameters for the component. The circuit status parameters change from OK or Not Run to Fault if there is a condition with the circuit

or a connection.

* An open fuse in the HO2S heater circuit may be caused by the heater element in one of the sensors. The condition may not be present until

the sensor operates for a period of time. If no fault is present in the heater circuit, monitor the amperage of each heater using the DMM to

determine if one of the heater elements is the cause of the open fuse. Inspect the sensor pigtail or the harness for contacting the exhaust

system.

Reference Information

Schematic Reference

Engine Controls Schematics (LAU) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)Engine Controls Schematics

(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

1. Engine idling at operating temperature for at least 30 s. Observe the DTC information, DTCs P0030, P0031, P0032, P0036, P0037, and

P0038 should not set.

2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the appropriate B52 Heated Oxygen Sensor.

2. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 1 and ground.

Note: The ignition circuit supplies voltage to other components. Make sure you test all circuits for a short to ground or test all components

for being shorted that share the ignition circuit.

瀚慖f the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and

the ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.

3. Connect a test lamp between the heater control circuit terminal 2 and B+. The test lamp should not illuminate.

瀚慖f the test lamp is always ON, test the control circuit for a short to ground. If the circuit/connections test normal, replace the K20 Engine

Control Module.

Note: The control circuit for the HO2S heater is pulled-up to voltage within the ECM, 2.0-3.0 V on the control circuit is normal.

4. Idle the engine, and verify the test lamp illuminates or flashes.

瀚慖f the test lamp is always OFF, test the control circuit terminal 2 for an open/high resistance. If the circuit/connections test normal, replace

the K20 Engine Control Module.

5. Ignition ON, test for 2.0-3.0 V between the control circuit terminal 2 and ground.

瀚慖f not within the specified range, test the control circuit for a short to voltage. If the circuit/connections test normal, replace the K20

Engine Control Module.

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 778

C0035 0F - C0050 0F

* Ignition ON

* Vehicle speed is greater than 35 km/h (22 mph)

C0035 18 - C0050 18

* Ignition ON

* Vehicle speed is greater than 10 km/h (6 mph)

C0035 5A - C0050 5A

* Ignition ON

* Vehicle speed is greater than 20 km/h (13 mph)

Conditions for Setting the DTC

C0035 06 - C0050 06

A short to voltage, short to ground or open/high resistance on the wheel speed sensor 12 V reference or low reference circuit is detected for 0.14

second.

C0035 0F - C0050 0F

An erratic wheel speed sensor signal is detected for 0.17 second.

C0035 18 - C0050 18

A missing wheel speed sensor signal is detected for 180 seconds.

C0035 5A - C0050 5A

Difference between fastest and slowest wheel speed is greater than 50% for 30 seconds.

Action Taken When the DTC Sets

* The EBCM disables the ABS, traction control, and stability control for the duration of the ignition cycle.

* The ABS indicator turns ON.

* The traction control/stability control-active indicator turns ON.

Conditions for Clearing the DTC

* A current DTC clears when the diagnostic runs and passes.

* The EBCM will turn OFF the indicator in the next ignition cycle.

Diagnostic Aids

* Do not use a magnet to clean the encoder ring.

* If 2 or more wheel speed sensors are inoperative, diagnose each wheel speed sensor individually.

Reference Information

Schematic Reference

Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Thursday, February 27, 2020

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 3044

瀚慖f greater than the specified value, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the EBCM.

4. If all circuits test normal, replace the yaw rate sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* GMLAN Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Wiring Repairs/GMLAN Wiring Repairs)

* ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and

Operation/ABS Description and Operation) for the ABS - Hybrid

* Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction

Control Systems/Yaw Rate Sensor/Service and Repair/Less than 3900 kg (8600 lb) GVW) for the ABS - Non-Hybrid Less than 3900 kg

(8600 lb) GVW

* Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction

Control Systems/Yaw Rate Sensor/Service and Repair/Less than 3900 kg (8600 lb) GVW) for the ABS - Non-Hybrid Greater than/Equal to

3900 kg (8600 lb) GVW

* Control Module References (See: Testing and Inspection/Programming and Relearning) for module replacement, setup, and programming

U2199

DTC U2105-U2199

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC U2142 00

- Lost Communication With Yaw Rate Sensor (YRS)

Circuit/System Description

Modules connected to the CAN bus serial data circuits monitor for serial data communications during normal vehicle operation. Operating

information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be

exchanged on the serial data circuits. The messages are supervised and also, some periodic messages are used by the receiver module as an

availability indication of the transmitter module. Each message contains the identification number of the transmitter module.

The electronic brake control module (EBCM) activates the other modules connected to the CAN serial data circuits by applying voltage when the

ignition key is in ACC, ON or START. The EBCM, Yaw Rate and Lateral Acceleration Sensor are the only modules connected to the CAN bus

serial data circuits. For more information on CAN bus serial data refer to Data Link Communications Description and Operation (See: Powertrain

Management/Computers and Control Systems/Information Bus/Description and Operation).

Conditions for Running the DTC

* The system voltage is between 9-16 volts.

* The vehicle power mode master requires serial data communication to occur.

Conditions for Setting the DTC

A supervised periodic message that includes the transmitter module availability has not been received.

Action Taken When the DTC Sets

* The vehicle stability enhancement system (VSES), if equipped, and traction control system (TCS) will not function.

* System OFF lamps will illuminate for these systems.

Conditions for Clearing the DTC

* A current DTC clears when the malfunction is no longer present.

* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.

2020 GMC Sierra HD | Prograde Trailering | GMC

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 895

DTC C1223 00

- Left Rear Wheel Speed Sensor Circuit Malfunction

DTC C1224 00

- Right Rear Wheel Speed Sensor Circuit Malfunction

DTC C1225 00

- Left Front Wheel Speed Sensor Circuit Performance Malfunction

DTC C1226 00

- Right Front Wheel Speed Sensor Circuit Performance Malfunction

DTC C1227 00

- Left Rear Wheel Speed Sensor Circuit Performance Malfunction

DTC C1228 00

- Right Rear Wheel Speed Sensor Circuit Performance Malfunction

DTC C1232 00

- Left Front Wheel Speed Sensor Circuit Low Input Malfunction

DTC C1233 00

- Right Front Wheel Speed Sensor Circuit Low Input Malfunction

DTC C1234 00

- Left Rear Wheel Speed Sensor Circuit Low Input Malfunction

DTC C1235 00

- Right Rear Wheel Speed Sensor Circuit Low Input Malfunction

Circuit/System Description

The wheel speeds are detected by active wheel speed sensors. Each wheel speed sensor receives a 12 V reference voltage from the electronic brake

control module (EBCM) and provides an alternating current square wave signal to the EBCM. As the wheel spins, the EBCM uses the frequency of

the square wave signal to calculate the wheel speed. The EBCM sends the wheel speed information as a high speed controller area network (CAN)

serial data message.

Conditions for Running the DTC

Ignition ON

Conditions for Setting the DTC

A supervised periodic message that includes the wheel speed serial data has not been received.

Action Taken When the DTC Sets

Specific subsystems will not function or operate in degraded mode.

Conditions for Clearing the DTC

A current DTC clears when the diagnostic runs and passes.

Reference Information

Schematic Reference

Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 424

Data Communication Schematics (See: Powertrain Management/Computers and Control Systems/Information Bus/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Data Link Communications Description and Operation (See: Powertrain Management/Computers and Control Systems/Information

Bus/Description and Operation)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool References

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

Verify DTC B1001 is not set.

If the DTC is set, program the control module. If the DTC resets, replace the control module.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning) for control module replacement, setup, and programming

Supplemental Inflatable Restraints

DTC B1001

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category

DTC Descriptor

DTC B1001 00

- Option Configuration

Circuit/System Description

The inflatable restraint sensing and diagnostic module (SDM) stores a primary data key, which is a 4-digit number. When the ignition is turned ON,

the SDM compares this information to the information stored in the body control module (BCM) over the serial data communication circuit. If there

is a mismatch between the information stored in the SDM and BCM, DTC B1001 will set.

Conditions for Running the DTC

System voltage is between 9-16 V.

Conditions for Setting the DTC

The 4-digit Primary Data Key stored in the SDM does not match the 4 digits stored in the BCM.

Action Taken When the DTC Sets

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 341

Circuit/System Testing

Driver Window Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the S79D window switch-driver.

2. Ignition ON, verify that the scan tool Driver Window Main Control Down Switch parameter is Inactive.

瀚慖f not the specified value, test the control circuit terminal 3 for a short to ground. If the circuit tests normal, test or replace the M74D

window motor-driver.

3. Verify that the scan tool Driver Window Main Control Up Switch parameter is Inactive.

瀚慖f not the specified value, test the control circuit terminal 6 for a short to ground. If the circuit tests normal, test or replace the M74D

window motor-driver.

4. Verify that the scan tool Driver Window Main Control Express Switch parameter is Inactive.

瀚慖f not the specified value, test the control circuit terminal 2 for a short to ground. If the circuit tests normal, test or replace the M74D

window motor-driver.

5. If all circuits test normal, test or replace the S79D window switch-driver.

Passenger Switch Window Malfunction

1. Ignition OFF, disconnect the harness connector at the S79P window switch-passenger.

2. Ignition ON, test for greater than 10V between the signal circuit terminal listed below and ground:

* Signal circuit terminal 6

* Signal circuit terminal 7

* Signal circuit terminal 8

瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or

replace the M74P window motor-passenger.

3. If all circuits test normal, test or replace the S79P window switch-passenger.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Front Side Door Window and Multifunction Switch Replacement (See: Windows and Glass/Windows/Service and Repair/Front Side Door

Window and Multifunction Switch Replacement)

* Rear Side Door Window Switch Replacement (See: Windows and Glass/Windows/Service and Repair/Rear Side Door Window Switch

Replacement)

* Rear Side Door Window Regulator Motor Replacement (See: Windows and Glass/Windows/Service and Repair/Rear Side Door Window

Regulator Motor Replacement)

B318A

DTC B316B, B317A, B318A, or B319A

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC B316B 00

- Driver Window Switch

DTC B316B 02

- Driver Window Switch Short to Ground

DTC B316B 39

- Driver Window Switch Internal Malfunction

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 367

control switch or by a close request from the remote control door lock receiver.

Conditions for Clearing the DTC

* The DTC will be current for as long as the fault is present.

* When the fault is no longer present, the DTC will be a history DTC.

* A history DTC will clear after 50 ignition cycles.

Diagnostic Aids

* If the liftgate will not release from the closed position, refer to Opening the Liftgate Without Electrical Power (See: Body and Frame/Doors,

Hood and Trunk/Trunk / Liftgate/Service and Repair/Procedures) for the appropriate procedure

* Whenever the liftgate control module loses power or is disconnected, the ignition must be cycled OFF then ON in order to reactivate the

liftgate control module.

Reference Information

Schematic Reference

Liftgate Schematics (See: Body and Frame/Locks/Diagrams/Electrical Diagrams/Liftgate Schematics)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Liftgate Description and Operation (See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Description and Operation/Liftgate)

Electrical Information Reference

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

Ignition ON, with the liftgate open, observe the scan tool Liftgate Rear Close Switch parameter while pressing and releasing the B70 liftgate close

switch. The parameter should change from Inactive to Active.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the B70 liftgate close switch.

2. Test for less than 10 ohm between the low reference circuit terminal 4 and ground.

瀚慖f greater than the specified range, test the low reference circuit for a short to voltage or an open/high resistance. If the circuit tests

normal, replace the K39 liftgate control module

3. Ignition ON, verify the scan tool Liftgate Rear Close Switch parameter is Inactive.

瀚慖f not the specified value, test the signal circuit terminal 3 for a short to ground. If the circuit tests normal, replace the K39 liftgate control

module.

4. Connect a 3A fused jumper wire between the signal circuit terminal 3 and ground, verify the scan tool Liftgate Rear Close Switch parameter

is Active.

瀚慖f not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the

K39 liftgate control module.

5. If all circuits test normal, test or replace the B70 liftgate close switch.

Component Testing

Liftgate Close Switch Assembly

1. Ignition OFF, disconnect the harness connector at the B70 liftgate close switch.

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 995

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

1. Engine idling at operating temperature for at least 30 s. Observe the DTC information, DTCs P0030, P0031, P0032, P0036, P0037, and

P0038 should not set.

2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the appropriate B52 Heated Oxygen Sensor.

2. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 1 and ground.

Note: The ignition circuit supplies voltage to other components. Make sure you test all circuits for a short to ground or test all components

for being shorted that share the ignition circuit.

瀚慖f the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and

the ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.

3. Connect a test lamp between the heater control circuit terminal 2 and B+. The test lamp should not illuminate.

瀚慖f the test lamp is always ON, test the control circuit for a short to ground. If the circuit/connections test normal, replace the K20 Engine

Control Module.

Note: The control circuit for the HO2S heater is pulled-up to voltage within the ECM, 2.0-3.0 V on the control circuit is normal.

4. Idle the engine, and verify the test lamp illuminates or flashes.

瀚慖f the test lamp is always OFF, test the control circuit terminal 2 for an open/high resistance. If the circuit/connections test normal, replace

the K20 Engine Control Module.

5. Ignition ON, test for 2.0-3.0 V between the control circuit terminal 2 and ground.

瀚慖f not within the specified range, test the control circuit for a short to voltage. If the circuit/connections test normal, replace the K20

Engine Control Module.

6. If all circuits/connections test normal, test or replace the B52 Heated Oxygen Sensor.

Component Testing

1. Ignition OFF, disconnect the harness connector at the B52 Heated Oxygen Sensor.

2. Test for 5-25 ohm between the control terminal 2 and the ignition terminal 1 of the B52 Heated Oxygen Sensor.

瀚慖f not within the specified range, replace the B52 Heated Oxygen Sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Heated Oxygen Sensor Replacement - Sensor 1 (LAU) (See: Powertrain Management/Computers and Control Systems/Oxygen

Sensor/Service and Repair/Heated Oxygen Sensor Replacement - Sensor 1)

* Heated Oxygen Sensor Replacement - Sensor 2 (LAU) (See: Powertrain Management/Computers and Control Systems/Oxygen

Sensor/Service and Repair/Heated Oxygen Sensor Replacement - Sensor 2)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for Engine Control Module replacement, setup, and

Wednesday, February 26, 2020

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 705

瀚慖f the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.

瀚慖f the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuits test normal, replace

the K9 BCM.

7. If all the circuits test normal, replace the appropriate right marker lamp

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Tail Lamp Replacement (See: Lighting and Horns/Tail Lamp/Service and Repair)

* Headlamp Replacement (See: Lighting and Horns/Headlamp/Service and Repair/Removal and Replacement/Headlamp Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup and programming

B3873

DTC B3873

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC B3873 02

- Front Washer Relay Circuit Short to Ground

Diagnostic Fault Information

Circuit/System Description

The body control module (BCM) controls the windshield washer fluid pump based on an input from the turn signal/multifunction switch. The BCM

monitors the washer switch through the windshield washer switch signal circuit. When the wash switch is closed, ground is supplied to the front

washer switch signal circuit. When this is the case, the BCM will command the windshield washer fluid pump and the low speed wipers on.

Conditions for Running the DTC

* Ignition ON.

* The system voltage is between 9-16 V.

Conditions for Setting the DTC

A short to ground is detected in the windshield washer relay control circuit.

Action Taken When the DTC Sets

Washer operation is suspended.

Conditions for Clearing the DTC

A current DTC clears when the diagnostic runs and passes.

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 320

* A history DTC will clear after 40 malfunction-free ignition cycles.

Reference Information

Schematic Reference

Theft Deterrent System Schematics (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Diagrams/Electrical Diagrams/Theft

Deterrent System Schematics)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Content Theft Deterrent (CTD) Description and Operation (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Description

and Operation/Content Theft Deterrent (CTD))

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Testing

Verify that DTC B291A is not set.

If the DTC is set, replace the B67 ultrasonic intrusion sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Theft Deterrent Sensor Replacement (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Antitheft Motion

Sensor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming

B291B

DTC B291B

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC B291B 00

- Content Theft Deterrent Sensor Malfunction

DTC B291B 39

- Content Theft Deterrent Sensor Internal Malfunction

DTC B291B 42

- Content Theft Deterrent Sensor Calibration Not Programmed

Circuit/System Description

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 3030

* Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction

Control Systems/Yaw Rate Sensor/Service and Repair/Less than 3900 kg (8600 lb) GVW) for the ABS - Non-Hybrid Greater than/Equal to

3900 kg (8600 lb) GVW

* Control Module References (See: Testing and Inspection/Programming and Relearning) for module replacement, setup, and programming

U2175