C0020-01

C0020-01-ABS PUMP MOTOR CONTROL - GENERAL ELECTRICAL FAILURE

For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on and no system under voltage condition present.

- Set Condition:
OPEN CIRCUIT: The Anti-lock Brake System (ABS) Module has detected improper voltage level when the motor is not running.

LOCKED MOTOR: The Anti-lock Brake System (ABS) Module is not seeing the proper response when motor is running.





NOTE: If DTC C0020-16 or C0020-35 are present, refer to the diagnostics for these DTCs before continuing with this procedure.
ANTI-LOCK BRAKE SYSTEM (ABS)
1. Perform any Technical Service Bulletins (TSBs) that may apply.
2. Turn the ignition off to the lock position.
3. Inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
4. Inspect the related wire harness connectors. Look for broken, bent, pushed out, or corroded terminals.

Were any problems found?

Yes

- Repair as necessary.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

No

- NOTE: For this failure it is necessary to replace both the ABS Module and the HCU as a complete unit.
- Replace the Anti-lock Brake System (ABS) Module. Anti-Lock Brake System Module - Removal.
- Replace the Hydraulic Control Unit (HCU). Hydraulic Control unit (HCU) - Removal.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.