2010 Cadillac Truck SRX FWD V6-3.0L Page 363

2010 Cadillac Truck SRX FWD V6-3.0L 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