Workshop Manuals Factory service & repair Vauxhall
Vauxhall Astra J05 · Body Systems
05 · Body & interior

DTC C0297

Make
Vauxhall
Model
Astra J
Section
Lighting › Other Information › DTC C0297
Body SystemsDTC C0297

DTC C0297

Diagnostic Instructions

•  Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
•  Review Strategy Based Diagnosis for an overview of the diagnostic approach.
•  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
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance

Brake Applied Output Signal
C0297 02
-
-
-
 

Circuit/System Description

The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The brake pedal position sensor provides an analog voltage signal that will increase as the brake pedal is applied. The body control module provides a low reference signal and a 5 V reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply a 12 V signal to the brake applied output circuit to the engine control module.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The BCM detects a short to ground on the control circuit.

Conditions for Clearing the DTC

The condition for setting the DTC is not longer present.

Reference Information


Schematic Reference

Cruise Control Schematics


Connector End View Reference

Component Connector End Views


Description and Operation

Exterior Lighting Systems Description and Operation


Electrical Information Reference


Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Verify that DTC C0277 is not set

If DTC is set, refer to DTC C0277 or C0890 .

Circuit/System Testing

1. Ignition OFF, disconnect the appropriate harness connector at the K20 Engine Control Module.
2. Connect a test lamp between the appropriate harness connector terminal listed below and ground:
  •  With LDE or LDD or LLU or LPV or LPL control circuit harness connector terminal 25 X1
  •  With LSF or LBS control circuit harness connector terminal 38 X1
  •  With LUJ control circuit harness connector terminal 33 X1
3. Ignition ON, push and release the brake pedal. The test lamp should turn ON and OFF when changed between pushed an released brake pedal.
⇒ If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 Body Control Module.
⇒ If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 Body Control Module.
4. If all circuits test normal, replace the K20 Engine Control Module.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

•  Control Module References for BCM or ECM replacement, setup and programming

Parts & tools for this job For Vauxhall Astra

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