2010 Cadillac Truck SRX FWD V6-3.0L Page 809
3. Test for less than 5 Ohms between the terminals listed below with the switch in the inactive state:
* Park brake switch signal terminal 1 and terminal 2
* B+ terminal 4 and park brake switch signal terminal 7
* B+ terminal 5 and park brake switch signal terminal 3
瀚慖f greater than the specified range, replace the electric parking brake switch.
4. Test for less than 5 Ohms between the terminals listed below with the switch in the apply position:
* Park brake switch signal terminal 1 and terminal 2
* B+ terminal 4 and park brake switch signal terminal 1
* B+ terminal 4 and park brake switch signal terminal 2
* B+ terminal 5 and park brake switch signal terminal 3
瀚慖f greater than the specified range, replace the electric parking brake switch.
5. Test for less than 5 Ohms between the terminals listed below with the switch in the release position:
* Park brake switch signal terminal 1 and terminal 2
* B+ terminal 5 and park brake switch signal terminal 1
* B+ terminal 5 and park brake switch signal terminal 2
* B+ terminal 4 and park brake switch signal terminal 7
瀚慖f greater than the specified range, replace the electric parking brake switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Parking Brake Switch Replacement (See: Brakes and Traction Control/Parking Brake System/Parking Brake Warning Switch/Service and
Repair)
* Electronic Parking Brake Control Module Replacement (See: Brakes and Traction Control/Parking Brake System/Parking Brake Control
Module/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for electric parking brake module replacement,
setup, and programming
C0297
DTC C0297
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 C0297 02
- Brake Applied Output Circuit Short to Ground
Diagnostic Fault Information
Circuit/System Description
The stop lamp switch signal circuit is a B+ input from the body control module (BCM) to the engine control module (ECM). The ECM monitors
the stop lamp switch circuit to detect when the brake pedal has been applied. The BCM monitors the brake pedal position sensor to determine when
the brake pedal is applied. When the brake pedal is applied, the BCM supplies 12V on the stop lamp switch signal circuit and also sends a serial
data message to the ECM indicating that the brake pedal has been applied.
Conditions for Setting the DTC
