For 1990-2009 cars only
Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using the 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.
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 into the EBCM.
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)/Engine Traction System (ETS) are disabled. |
| • | The ABS/ETS indicators turn ON. |
Conditions for Clearing the DTC
The correct calibration must be programmed into the EBCM.
Circuit/System Verification
- Verify that the EBCM is the correct module for the vehicle.
- With ignition OFF, separate the EBCM from the brake pressure modulator valve (BPMV).
| ⇒ | Reprogram the EBCM. |
| ⇒ | If the EBCM is not correct, replace the EBCM. |
Repair Instructions
Control Module References for EBCM replacement, setup, and programming
Repair Verification
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
