DTC 77

CIRCUIT DIAGRAM





INSPECTION PROCEDURE

CIRCUIT DESCRIPTION:
These DTCs identify a solenoid that cannot be energized due to an open in its driver circuitry, or a short to ground between the solenoid driver and the solenoid. These malfunctions can affect Antilock Brake System (ABS) operation since the flow of brake fluid to the caliper cannot be stopped, making ABS operation for that channel impossible.

FAILURE CONDITION:
DTCs 77 and 81 can be set only when the solenoid is commanded on. If the Electronic Brake Control Module (EBCM) detects the solenoid control circuit voltage is out of specification, a malfunction exists.