2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 363
瀚慖f not the specified value, test the signal circuit terminal 4 for a short to ground. If the circuit tests normal, replace the K39 liftgate control
module.
4. Install a 3 A fused jumper wire between the signal circuit terminal 4 and ground. Verify the scan tool Liftgate Front Control 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 S45B liftgate control switch-interior.
Component Testing
1. Ignition OFF, disconnect the harness connector at the S45B liftgate control switch-interior.
2. Test for the values listed below between the signal terminal 3 and the ground terminal 1.
* 600-650 ohm in the Off position
* 125k-140k ohm in the 3/4 position
* 400k-415k ohm in the Max position
瀚慖f not within the specified ranges, replace the S45B liftgate control switch-interior.
3. Test for infinite resistance between the signal terminal 4 and the ground terminal 1 with the switch open.
瀚慖f not the specified value, replace the S45B liftgate control switch-interior.
4. Test for less than 3 ohm between the signal terminal 4 and the ground terminal 1 with the switch closed.
瀚慖f greater than the specified range, replace the S45B liftgate control switch-interior.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Liftgate Actuator Control Switch Replacement (See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Trunk / Liftgate
Motor/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the liftgate control module replacement, setup
and programming
B396D
Liftgate Interior Release Open/Close Switch Malfunction - DTC B396C or B396D
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 B396C 08
- Liftgate Mode Switch Circuit Performance Signal Invalid
DTC B396D 02
- Front Liftgate Actuator Switch Circuit Short To Ground
Diagnostic Fault Information
