For 1990-2009 cars only
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 ProgrammedDTC C0551 47: Option Configuration Error/VIN Not Programmed
Circuit/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
The ignition switch is in the ON position.
Conditions for Setting the DTC
C0551 45
The option configuration has not been programmed.
C0551 47
The incorrect EBCM has been installed in the vehicle.
Action Taken When the DTC Sets
One or more of the following actions may occur:
| • | The antilock brake system (ABS) and engine traction (ETS) are disabled. |
| • | The ABS/TCS indicators turn ON. |
Conditions for Clearing the DTC
| • | The condition for the DTC is no longer present. |
| • | The correct calibration must be programmed into the EBCM |
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Antilock Brake System Connector End Views
Description and Operation
Electrical Information Reference
Scan Tool Reference
Scan Tool Data List for EBCM
Circuit/System Verification
Verify that the EBCM is the correct module for the vehicle.
| ⇒ | If the EBCM is not correct, replace the EBCM. |
| ⇒ | Reprogram the EBCM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for EBCM replacement, setup, and programming |
