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

DTC B0655

Make
Vauxhall
Model
Astra J
Section
Diagnostic Information and Procedures › Miscellaneous › DTC B0655
Body SystemsDTC B0655

DTC B0655

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 B0655 5A: Brake Lamp Switch Circuit Not Plausible

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 to the body control module (BCM). The BCM will apply battery voltage to the right, left and center stop lamp control circuits and the trailer lighting converter. The trailer lighting converter receive also a serial data message from the BCM.

Conditions for Running the DTC

•  The ignition is in OFF, ACCESSORY or RUN position.
•  The system voltage is between 9-16 V.

Conditions for Setting the DTC

The trailer lighting converter detects a difference between the hardwired signal and the serial data message.

Action Taken When the DTC Sets

The trailer lighting converter stores the DTC in the failure record.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information


Schematic Reference

Exterior Lights Schematics


Connector End View Reference

Component Connector End Views


Description and Operation

Exterior Lights Schematics


Electrical Information Reference


Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Verify that the E6 Center High Mounted Brake Lamp is ON when the brake pedal is applied and is OFF when the brake pedal is unapplied.

If the E6 Center High Mounted Brake Lamp is always ON or OFF, refer to High Mount Stop Lamp Inoperative . If the E6 Center High Mounted Brake Lamp is working properly, replace the K68 Trailer Lighting Converter.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for trailer lighting converter replacement, setup, and programming

Parts & tools for this job For Vauxhall Astra

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