PRE-RELEASE
DTC B0655
| DTC B0655 |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
has overviews of all diagnostic categories.
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| 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 |
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The ignition is in OFF, ACCESSORY or RUN position.
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The system voltage is between 9-16 V.
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| 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 Lighting Systems Description and Operation
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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Scan Tool Reference
Control Module References for information on diagnostic tools
| Circuit/System Verification |
Verify that the E6 Center High Mounted Stop Lamp is ON when the brake pedal is applied and OFF when the brake pedal is unapplied.
| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for trailer interface control module replacement, setup and programming
