ABS

DTC C0550
Circuit Description
The electronic brake control module (EBCM) performs several self-tests for any internal problems which may affect proper operation.

DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C0550 Electronic Control Unit (ECU) Performance

Conditions for Running the DTC
^ The ignition is ON.
^ The engine is running at a rate greater than 450 RPM.

Conditions for Setting the DTC
The electronic brake control module (EBCM) detects an internal malfunction.

Action Taken When the DTC Sets
The following actions may occur.
^ The EBCM disables the ABS/dynamic rear portion (DRP).
^ The ABS indicator turns ON.
^ The brake warning indicator turns ON.

Conditions for Clearing the DTC
Certain failures that may cause this DTC to set cannot be cleared. Other failures that may cause this DTC to set may be cleared, at least temporarily, by using the scan tool Clear DTC's function.

Diagnostic Aids

Steps 1-5:

Replace the EBCM if this DTC continues to set intermittently.