C072

C0271-C0273 or C071-C073

CIRCUIT DESCRIPTION
The Electronic Brake Control Module (EBCM) initializes a self-test when the ignition is turned to the RUN position. This internal self-test verifies that all ABS circuitry is operating correctly.

CONDITIONS FOR SETTING THE DTC
Any condition within the EBCM which causes a memory error will set the Diagnostic Trouble Code (DTC).

ACTION TAKEN WHEN THE DTC SETS
^ The ABS indicator lamp is turned on
^ The ABS is disabled

These Diagnostic Trouble Codes (DTCs) are Permanent Latched DTCs, which indicates that the above actions remain true until the DTC is cleared using a Scan Tool.

CONDITIONS FOR CLEARING THE DTC
^ Repair the conditions responsible for setting the Diagnostic Trouble Code (DTC)
^ Use the Scan Tool Clear DTCs function

DIAGNOSTIC AIDS
Diagnostic Trouble Codes (DTCs) C0271-CO273 are Electronic Brake Control Module (EBCM) internal diagnostic trouble codes. Replace the EBCM if these tests show that the EBCM circuitry has failed.

TEST DESCRIPTION
The numbers below refer to the steps in the diagnostic table:
2. This step checks if the Electronic Brake Control Module (EBCM) will Clear Diagnostic Trouble Codes (DTCs).
3. This step checks if the DTC was set previously.