Domestic

CIRCUIT DESCRIPTION
The Electronic Brake Control Module (EBCM) controls the ANTILOCK indicator lamp illumination by supplying a ground to terminal B. When the vehicle is started or the ignition is turned to the RUN position, the ANTILOCK indicator should illuminate for three seconds and turn off.

DIAGNOSTIC AIDS
If the ANTILOCK indicator lamp is on always with no Diagnostic Trouble Codes (DTCs) set (never turns off after three seconds with the vehicle started or with the ignition switch in the RUN position), there is a short to ground in CKT 867 between the instrument cluster and the EBCM or the EBCM is internally shorted to ground.

TEST DESCRIPTION
The numbers below refer to the steps in the diagnostic table:
2. This step checks for a short to ground in CKT 867.