DTC P0763 Shift Solenoid "C" Electrical: Wiring Diagram

WARNING: This page is about a different variant/trim than selected.

AT Control System. Refer to appropriate SYSTEM WIRING DIAGRAM article.

Fig 1: AT Control System - Wiring Diagram (Shift Solenoid "C")

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK HARNESS CONNECTOR BETWEEN TCM AND TRANSMISSION. Turn the ignition switch to OFF. Disconnect the connectors from TCM and transmission. Measure the resistance of harness between TCM connector and transmission connector. Connector & terminal (B54) No. 22 - Chassis ground: (B54) No. 23 - Chassis ground: (B55) No. 5 - (B11) No. 15:	Is the resistance less than 1 Ω?	Go to step 2 .	Repair the open circuit of harness between TCM and transmission connector.
2 CHECK HARNESS CONNECTOR BETWEEN TCM AND CHASSIS GROUND. Measure the resistance of harness between TCM connector and chassis ground. Connector & terminal (B55) No. 5 - Chassis ground:	Is the resistance 1 MΩ or more?	Go to step 3 .	Repair the short circuit of harness between TCM and transmission connector.
3 CHECK HARNESS CONNECTOR BETWEEN TRANSMISSION AND CONTROL VALVE BODY. Turn the ignition switch to OFF. Disconnect the connector from transmission. Remove the transmission connector from bracket. Lift up the vehicle. Drain the ATF. CAUTION: Do not drain ATF until it cools down. Remove the oil pan. Disconnect the control valve body connector. Measure the resistance between transmission connector and control valve body connector. Connector & terminal (T4) No. 15 - (T11) No. 2:	Is the resistance less than 1 Ω?	Go to step 4 .	Repair the open circuit of harness between transmission connector and control valve body connector.
4 CHECK HARNESS CONNECTOR BETWEEN TRANSMISSION AND CONTROL VALVE BODY. Measure the resistance between transmission ground and control valve body connector. Connector & terminal (T11) No. 2 - Transmission ground:	Is the resistance 1 MΩ or more?	Repair the open circuit of harness between control valve body connector and transmission ground.	Go to step 5 .
5 CHECK HIGH & LOW REVERSE CLUTCH SOLENOID. Measure the resistance between transmission ground and control valve body connector. Connector & terminal (T11) No. 2 - Transmission ground:	Is the resistance 3 - 9 Ω?	Go to step 6 .	Replace the control valve body. Refer to CONTROL VALVE BODY .
6 CHECK FOR POOR CONTACT. Check the TCM connector, transmission connector and control valve body connector.	Is there poor contact, loosing terminal, entering foreign matter, or damaging connector body?	Repair the poor contact.	Go to step 7 .
7 CHECK AFTER REPAIR. Perform the Clear Memory Mode. Drive for a while and read DTC.	Is DTC displayed?	Replace the TCM. Refer to TRANSMISSION CONTROL MODULE (TCM) .	Temporary poor contact or open circuit occurs. Recheck that the harness connector has no faulty.