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 Descriptors
DTC C0551 45: Option Configuration Error/Variant not programmedCircuit/System Description
When the electronic brake control module (EBCM) is replaced, software and calibrations are flash programmed into the EBCM. The EBCM receives the VIN number from the BCM in order for the EBCM to automatically calibrate to the vehicle.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
C0551 45
The option configuration has not been programmed.
Action Taken When the DTC Sets
The EBCM is unable to enable the antilock brake system (ABS) and sends a serial data message to the driver information center (DIC) to illuminate the warning indicator/message.
Conditions for Clearing the DTC
| • | The condition for the DTC is no longer present. |
| • | The correct calibration must be programmed into the EBCM. |
Diagnostic Aids
If the DTC was set after EBCM replacement, verify that the replacement EBCM and software are correct for the vehicle.
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Description and Operation Reference
Electrical Information Reference
Scan Tool Reference
Control Module References for Scan Tool Information
Circuit/System Verification
Verify that DTC C0551 programming is not set.
| ⇒ | If the DTC is set, program the EBCM. If the DTC resets, replace the EBCM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for EBCM replacement, setup, and programming
