2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 526

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 526

4. If all circuits test normal, replace the seat motor.

Repair Instructions

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

* Driver or Passenger Seat Cushion Frame Replacement (See: Body and Frame/Seats/Service and Repair/Removal and Replacement/Driver or

Passenger Seat Cushion Frame Replacement)

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

and programming

B2365

DTC B1825, B2355, B2365, or B2375

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 B1825 01

- Driver Seat Recline Position Sensor Circuit Short to Battery

DTC B1825 06

- Driver Seat Recline Position Sensor Circuit Low Voltage/Open

DTC B2355 01

- Driver Seat Front Vertical Position Sensor Circuit Short to Battery

DTC B2355 06

- Driver Seat Front Vertical Position Sensor Circuit Low Voltage/Open

DTC B2365 01

- Driver Seat Rear Vertical Position Sensor Circuit Short to Battery

DTC B2365 06

- Driver Seat Rear Vertical Position Sensor Circuit Low Voltage/Open

DTC B2375 01

- Driver Seat Assembly Horizontal Position Sensor Circuit Short to Battery

DTC B2375 06

- Driver Seat Assembly Horizontal Position Sensor Circuit Low Voltage/Open

Diagnostic Fault Information

Circuit Description

The seat memory control module monitors the position of the seat motors by using hall effect position sensors which are an internal part of each

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 325

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 325

4. If all circuits test normal, test or replace the A23D door latch assembly - driver

Passenger Door Ajar Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the A23P door latch assembly - passenger.

2. Test for less than 10 ohm between the ground circuit terminal 3 and ground.

瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify the scan tool BCM Passenger Door Ajar Switch parameter is Inactive.

瀚慖f not the specified value, test the signal circuit terminal 1 for a short to ground. If the circuit tests normal, replace the M74P window

motor - passenger.

4. Install a 3 A fused jumper wire between the signal circuit terminal 1 and ground. Verify the scan tool BCM Passenger Door Ajar 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

M74P window motor - passenger.

5. If all circuits test normal, test or replace the A23P door latch assembly - passenger.

Passenger Door Open Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the A23P door latch assembly - passenger.

2. Ignition ON, verify the scan tool keyless entry control module Passenger Door Open Switch parameter is Inactive.

瀚慖f not the specified value, test the signal circuit terminal 2 for a short to ground. If the circuit tests normal, replace the K84 keyless entry

control module.

3. Install a 3 A fused jumper wire between the signal circuit terminal 2 and ground. Verify the scan tool keyless entry control module Passenger

Door Open 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

K84 keyless entry control module.

4. If all circuits test normal, test or replace the A23P door latch assembly - passenger

Component Testing

1. Ignition OFF, disconnect the harness connector at the appropriate A23 door latch assembly.

2. With the switch in the open position, test for infinite resistance between the signal terminal and ground terminal listed below:

* A23D door latch assembly - driver signal terminal 6 and ground terminal 8

* A23D door latch assembly - driver signal terminal 7 and ground terminal 8

* A23P door latch assembly - passenger signal terminal 1 and ground terminal 3

* A23P door latch assembly - passenger signal terminal 2 and ground terminal 3

瀚慖f not the specified value, replace the A23 door latch assembly

3. With the switch in the closed position, test for less than 5 ohm between the signal terminal and ground terminal listed below:

* A23D door latch assembly - driver signal terminal 6 and ground terminal 8

* A23D door latch assembly - driver signal terminal 7 and ground terminal 8

* A23P door latch assembly - passenger signal terminal 1 and ground terminal 3

* A23P door latch assembly - passenger signal terminal 2 and ground terminal 3

瀚慖f greater than the specified range, replace the A23 door latch assembly

Repair Instructions

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

* Front Side Door Lock Replacement (See: Body and Frame/Locks/Door Locks/Service and Repair/Front Side Door Lock Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM and keyless entry control module

replacement, setup and programming

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 484

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 484

4. If all circuits test normal, test or replace the B27RR door handle switch-right rear exterior.

Component Testing

Rear Door Handle Switch

1. Ignition OFF, disconnect the harness connector at the appropriate B27 Door Handle Switch - Rear.

2. With the switch in the open position, test for infinite resistance between the signal terminal 2 and the ground terminal 1.

瀚慖f not the specified value, replace the B27 Door Handle Switch - Rear.

3. With the switch in the closed position, test for less than 5 ohm between the signal terminal 2 and the ground terminal 1

瀚慖f greater than the specified range, replace the B27 Door Handle Switch - Rear.

Repair Instructions

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

* Rear Side Door Outside Handle Replacement (See: Body and Frame/Doors, Hood and Trunk/Doors/Rear Door/Rear Door Handle/Rear

Door Exterior Handle/Service and Repair/Rear Side Door Outside Handle Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for the keyless entry control module replacement,

setup, and programming

B1735

DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820

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 B1735 02

- Driver Seat Front Up Switch Circuit Short to Ground

DTC B1740 02

- Driver Seat Front Down Switch Circuit Short to Ground

DTC B1745 02

- Driver Seat Rear Up Switch Circuit Short to Ground

DTC B1750 02

- Driver Seat Rear Down Switch Circuit Short to Ground

DTC B1755 02

- Driver Seat Assembly Forward Switch Circuit Short to Ground

DTC B1760 02

- Driver Seat Assembly Rearward Switch Circuit Short to Ground

DTC B1815 02

- Driver Seat Recline Forward Switch Circuit Short to Ground

DTC B1820 02

- Driver Seat Recline Rearward Switch Circuit Short to Ground

Diagnostic Fault Information

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 3042

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 3042

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

U2181

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.