C0071

Kelsey-Hayes Electronic Control Module:

DTC C0071, C0072, C0073, C0074 - EBCM Internal Fault:

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

CONDITIONS FOR SETTING DIAGNOSTIC TROUBLE CODES (DTCs)
Any condition within the EBCM which causes a memory error.

ACTION TAKEN WHEN THE DTC SETS
^ ANTILOCK indicator lamp is illuminated
^ Antilock Brake System (ABS) is disabled

NOTE: These DTCs are Permanent Latched DTCs, indicating that the above is true until the DTC is cleared using a scan tool.

DIAGNOSTIC AIDS
DTCs C0071 through C0074 are EBCM internal diagnosis. The EBCM must be replaced if these tests show the EBCM circuitry has failed.

TEST DESCRIPTION

NOTE: Number(s) below refer to number(s) on the diagnostic chart.

2. Check if EBCM will clear DTCs.
3. Check if DTC has been set previously.