C0551

DTC C0551





Circuit Description
The Electronic Suspension Control (ESC) module performs internal checks on the software calibrations contained in the EEPROM to ensure valid operation.

Conditions for Running the DTC
Upon key on and reset.

Conditions for Setting the DTC
The ESC module detects internal problems with software calibrations.

Action Taken When the DTC Sets
^ Disable all functions, EVO, Rear Leveling and RTD.
^ The SERVICE RIDE CONTROL message will be displayed.
^ Stores a DTC C0551 in the ESC module memory.

Conditions for Clearing the DTC
^ Using the scan tool.
^ A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.

Diagnostic Aids
^ Program the ESC module twice before replacement and cycle the ignition off and on to see if the DTC C0551 resets.
^ The replacement ESC module must be programmed when replacement is necessary. If the ESC module is not programmed after replacement, DTC C0551 is stored in the ESC module memory and will not clear until the module is programmed.

Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. Checks for other stored DTCs.
3. Checking to verify the DTC will not reset.