DTC C0111 Motor/Motor Relay Malfunction: Wiring Diagram

Fig 1: Motor/Motor Relay Malfunction - Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

MOTOR/MOTOR RELAY DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK INPUT VOLTAGE OF ABSCM & H/U. Turn the ignition switch to OFF. Disconnect the ABSCM & H/U connectors. Turn the ignition switch to ON. Measure the voltage between ABSCM & H/U connector and chassis ground. Connector & terminal (B301) No. 13 (+) - Chassis ground (-):	Is the voltage 10 - 15 V?	Go to step 2.	Repair the harness connector between battery and ABSCM & H/U.
2 CHECK INSTALLATION OF MOTOR GROUND.	Is the motor ground terminal installation bolt tightened to 33 N.m (3.3 kgf-m, 24.3 ft-lb)?	Go to step 3.	Tighten the motor ground terminal installation bolt.
3 CHECK GROUND CIRCUIT OF MOTOR. Turn the ignition switch to OFF. Measure the resistance between the ABSCM & H/U connector and chassis ground. Connector & terminal (B301) No. 12 - Chassis ground:	Is the resistance less than 0.5 Ω?	Go to step 4.	Repair the ABSCM & H/U ground harness.
4 CHECK INPUT VOLTAGE OF ABSCM & H/U. Run the engine at idle. Measure the voltage between ABSCM & H/U connector and chassis ground. Connector & terminal (B301) No. 18 (+) - Chassis ground (-):	Is the voltage 10 - 15 V?	Go to step 5.	Repair the harness connector between battery, ignition switch and ABSCM & H/U.
5 CHECK THE ABSCM & H/U GROUND CIRCUIT. Turn the ignition switch to OFF. Measure the resistance between the ABSCM & H/U connector and chassis ground. Connector & terminal (B301) No. 15 - Chassis ground:	Is the resistance less than 0.5 Ω?	Go to step 6.	Repair the ABSCM & H/U ground harness.
6 CHECK POOR CONTACT IN CONNECTOR. Turn the ignition switch to OFF.	Is there poor contact in connector between generator, battery and ABSCM & H/U?	Repair the connector.	Go to step 7.
7 CHECK ABSCM & H/U. Connect all connectors. Clear the memory. Refer to CLEAR MEMORY MODE . Perform the Inspection Mode. Refer to INSPECTION MODE . Read the DTC.	Is the same DTC displayed?	Replace the ABSCM & H/U. Refer to ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM & H/U) .	Go to step 8.
8 CHECK FOR ANY OTHER DTC ON DISPLAY.	Is any other DTC displayed?	Check DTC using LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .	Temporary poor contact occurs. NOTE: Though the ABS warning light remains on at this time, this is normal. Drive the vehicle at 12 km/h (7 MPH) or more in order to turn ABS warning light off. Be sure to drive the vehicle and check that the warning light goes off.