2010 Cadillac Truck SRX AWD V6-3.0L Page 326
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 B297B 5A
- Driver Door Open Switch Circuit Not Plausible
DTC B297C 5A
- Passenger Door Open Switch Circuit Not Plausible
Diagnostic Fault Information
Circuit/System Description
The keyless entry control module supplies a 12V signal to the driver and passenger door open switch signal circuits. The driver window motor
supplies a 12V signal to the driver door ajar switch signal circuit. The passenger window switch supplies a 12V signal to the passenger door ajar
switch signal circuit. The door open switches and the door ajar switches are integral to each door latch assembly.
The door open switch and the door ajar switch contacts will be open with the door is fully closed, the door switches within the door latch are
designed so that the when the door is ajar, the contact in the door ajar switch closes and the window motor will then send a serial data message to
the BCM indicating that the door is ajar. When the door is opened further, the contact in the door open switch will then close providing a ground
for the door open signal circuit, the keyless entry control module will then detect that the door is open.
Conditions for Running the DTC
Battery voltage is between 9-16 V.
Conditions for Setting the DTC
B297B 5A
* The keyless entry control module detects the driver door open switch is Active while receiving a serial data message from the BCM that the
driver door ajar switch is Inactive.
* The condition must be present for greater than 2 seconds
B297C 5A
* The keyless entry control module detects the passenger door open switch is Active while receiving a serial data message from the BCM that
the passenger door ajar switch is Inactive.
* The condition must be present for greater than 2 seconds.
Action Taken When the DTC Sets
B297B 5A
The keyless entry control module ignores the inputs from the driver exterior door handle switch.
B297C 5A
The keyless entry control module ignores the inputs from the passenger exterior door handle switch.
Conditions for Clearing the DTC
* The DTC will be current for as long as the fault is present.
* When the keyless entry control module receives a serial data message from the BCM that the door is ajar before the keyless entry control
