Circuit Description
The suspension control module performs internal checks on hardware and software (calibrations) to ensure valid operation.
Conditions for Running the DTC
Upon key on with the ignition in the ON/RUN position.
Conditions for Setting the DTC
The suspension control module detects an error with its microprocessor.
Action Taken When the DTC Sets
| • | Disable all functions, EVO, rear leveling and RTD. |
| • | The SERVICE RIDE CONTROL message will be displayed. |
| • | DTC C0550 will be stored in memory. |
Conditions for Clearing the MIL/DTC
The cause of the malfunction is not present upon the next key on cycle.
Using the scan tool.
Diagnostic Aids
Important: Calibrate the suspension control module before replacement and cycle the ignition off and on to see if the DTC C0550 resets.
The replacement suspension control module must be calibrated when replacement is necessary.Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the RTD Diagnostic System Check? | -- | Go to Step 2 | Go to Diagnostic System Check |
Important: Perform the set up procedure (re-calibrate) for the suspension control module. Refer to Electronic Suspension Control Module Replacement . Does the scan tool display DTC C0550? | -- | Go to Step 3 | Go to Diagnostic System Check | |
|
Important: Perform the set up procedure (re-calibrate) for the suspension control module after replacement. Replace the suspension control module. Refer to Electronic Suspension Control Module Replacement . Did you complete the replacement? | -- | System OK | -- |
