DTC P2763 Lock-Up Duty Solenoid Circuit (High): Wiring Diagram

Fig 1: Lock-Up Duty Solenoid - Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK HARNESS.  Turn the ignition switch to OFF. Disconnect the TCM and transmission connectors. Measure the resistance between TCM connector and transmission connectors. Connector & terminal  (B54) No. 26 - (B11) No. 2:	Is the resistance less than 1 Ω?	Go to step 2  .	Repair the open circuit of harness.
2 CHECK HARNESS.  Turn the ignition switch to ON. Measure the voltage between TCM connector and chassis ground. Connector & terminal  (B54) No. 26 (+) - Chassis ground (-):	Is the voltage approx. 0 V?	Go to step 3  .	Repair the short circuit of harness.
3 CHECK LOCK-UP DUTY SOLENOID.  Measure the resistance between transmission connector and transmission body. Connector & terminal  (T4) No. 2 - Transmission body:	Is the resistance approx. 13 Ω? (when engine cold)	Check for poor contact of the connector, and repair the fault location.	Go to step 4  .
4 CHECK HARNESS INSIDE TRANSMISSION.  CAUTION: Start work after ATF cools down. Remove the transmission oil pan. Check for the harness pinch, damage.	Is there any malfunction in harness?	Go to step 5  .	Replace the transmission harness.
5 CHECK HARNESS INSIDE TRANSMISSION.  Disconnect the control valve body connector. Turn the ignition switch to ON. Measure the voltage between transmission connector and transmission body. Connector & terminal  (T4) No. 2 (+) - Transmission body (-):	Is the voltage approx. 0 V?	Replace the control valve body. Ref. to CONTROL VALVE BODY .	Replace the transmission harness.