DTC P0966 Forward & Reverse Solenoid Circuit (Low): Wiring Diagram

CVT Control System. See appropriate SYSTEM WIRING DIAGRAM article.

Fig 1: CVT Control System - Wiring Diagram (Forward & Reverse Solenoid)

G08318818

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK INPUT SIGNAL FOR TCM. After driving with warm up condition, park the vehicle while depressing the brake pedal at "D" range. Read the data of «F&R Linear Solenoid Set Current» and «F&R Linear Solenoid Actual Current» using Subaru Select Monitor.	Does the value of «F&R Linear Solenoid Set Current» and «F&R Linear Solenoid Actual Current» almost correspond?	Check for poor contact of connector.	Go to step 2 .
2 CHECK HARNESS. Turn the ignition switch to OFF. Disconnect the TCM and transmission connectors. Measure the resistance between TCM connector and chassis ground. Connector & terminal (B54) No. 11 - Chassis ground:	Is the resistance 1 MΩ or more?	Go to step 3 .	Repair the short circuit of harness.
3 CHECK F&R SOLENOID. Measure the resistance between transmission connector and transmission body. Connector & terminal (T4) No. 7 - Transmission body:	Is the resistance approx. 6 Ω? (when engine cold)	Check for poor contact of the connector, and repair the defective part.	Go to step 4 .
4 CHECK HARNESS INSIDE TRANSMISSION. CAUTION: Start work after ATF cools down. Remove the transmission valve cover. Check for the harness pinch, damage.	Is the harness normal?	Go to step 5 .	Replace the transmission harness.
5 CHECK HARNESS INSIDE TRANSMISSION. Disconnect the control valve body connector. Measure the resistance between transmission connector and transmission body. Connector & terminal (T4) No. 7 - Transmission body:	Is the resistance 1 MΩ or more?	Replace the control valve body. Refer to CONTROL VALVE BODY .	Replace the transmission harness.