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 PlausibleCircuit/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
Connector End View Reference
Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Verify that DTC B3884 is not present.
| ⇒ | If DTC is present, refer to DTC B3884 |
| ⇒ | If DTC is not present, 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
