M: C1095 and C1096 - ABS Hydraulic Pump Motor Circuit Failure/Open

PINPOINT TEST M: DTCs C1095 AND C1096 - ABS HYDRAULIC PUMP MOTOR CIRCUIT FAILURE/OPEN

Normal Operation
Anti-lock brake system (ABS) diagnostic trouble code (DTC) C1095 sets only when the motor is initially commanded ON for 100 ms (+6 ms, -6 ms), and the ABS hydraulic pump motor is then commanded OFF and the voltage back is read after 6 ms. If the voltage indicates that the motor is spinning at less than 500 rpm there may be a locked motor. If this condition is detected 4 times, then a locked motor DTC C1095 is set. The pump motor is checked for an open circuit 2 seconds after the most recent successful pump motor off command. If the pump motor feedback remains greater than 0.75 volt for more than 50 ms (+6 ms, -6 ms) after these conditions have been met, then DTC C1096 is set.

Voltage is supplied by circuit 532 (OG/YE) (hot at all times). Ground is provided through circuit 530 (LG/YE).

Possible Causes
^ Fuse
^ Circuit 530 (LG/YE) open
^ Circuit 532 (OG/YE) open or short to ground
^ Hydraulic pump motor
^ ABS module

M1-M3:

M3-M5: