2010 Cadillac Truck SRX FWD V6-3.0L Page 809

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