Pump Motor Stalled

SYMPTOM
PUMP MOTOR STALLED

TEST NOTE
This symptom is diagnosed using the test PUMP MOTOR CIRCUIT OPEN.

WHEN MONITORED
Ignition on.

SET CONDITION
When vehicle speed is above 15 mph without ABS active. Vehicle speed above 4 mph with a fault from the previous ignition cycle. ABS pump motor command given and then turned off. High feedback voltage from the low side of the motor continuously for 5 ms.

POSSIBLE CAUSES
- ABS pump motor intermittent DTC
- Fused B(+) circuit intermittently shorted to ground
- Fused B(+) circuit shorted to ground
- CAB - fused B(+) circuit shorted to ground
- Fuse blown - pump motor circuit
- No B(+) supply to fuse
- ABS pump motor inoperative
- Fused b(+) circuit open
- Ground circuit open
- Ground circuit high resistance
- CAB - internal fault