DTC 55
55 ELECTRONIC BRAKE CONTROL MODULE (EBCM) MALFUNCTIONDTC 55 EBCM Malfunction:
DTC 55 EBCM Malfunction:
Circuit Description:
This DTC identifies an internal malfunction detected by the EBCM ABS motor driver interface, (MDI) custom integrated circuit (IC). It also ensures the cause of the malfunction is not a result of a problem with the ABS relay under a DTC 55 malfunction.
Action Taken:
A malfunction DTC is stored, ABS is disabled and the amber ABS warning lamp is turned "ON." The red BRAKE warning lamp is turned "ON" if the rear piston in the ABS motor pack is not in the home position.
DTC Chart Test Description:
Number(s) below refer to circled number(s) on the diagnostic chart.
1. Checks to see if the malfunction is still present.
2. Checks to see if the malfunction is intermittent.
Diagnostic Aids:
An "Intermittent" malfunction may be caused by a poor connection, rubbed through wire insulation, or a wire that is broken inside the insulation.
The frequency of the malfunction can be checked by using the enhanced diagnostic function of the Tech 1.
Any circuitry that is suspected of causing the intermittent complaint should be thoroughly checked for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, poor terminal to wiring connections or physical damage to the wiring harness.