Diagnostic Procedure

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK SHIFT LOCK SOLENOID. Forcibly activate the body integrated unit to check the operation of shift lock solenoid. < Refer to FUNCTION CHECK . > Move the select lever without depressing the brake pedal.	Does the select lever shift?	Go to step 2 .	Go to step 3 .
2 CHECK OUTPUT SIGNAL OF BODY INTEGRATED UNIT. Display the following items using Subaru Select Monitor. < Refer to READ CURRENT DATA . > Key-lock warning SW Shift position P SW Stop light switch Set the select lever to the "P" range while stepping on the brake pedal.	Do the units of measure of items displayed change?	Go to step 3 .	Check the circuits of the items whose values do not change.
3 CHECK HARNESS CONNECTOR BETWEEN BODY INTEGRATED UNIT AND SHIFT LOCK SOLENOID. Measure the harness resistance between the body integrated unit and chassis ground. Connector & terminal (B279) No. 12 - Chassis ground:	Is the resistance 1 MΩ or more?	Go to step 4 .	Repair the short circuit of harness between body integrated unit and shift lock solenoid connector.
4 CHECK HARNESS BETWEEN SHIFT LOCK SOLENOID AND CHASSIS GROUND TERMINAL. Measure the resistance of harness between shift lock solenoid and chassis ground. Connector & terminal (B117) No. 4 - Chassis ground:	Is the resistance less than 1 Ω?	Go to step 5 .	Repair the open circuit of harness between chassis ground and shift lock solenoid connector.
5 CHECK SHIFT LOCK SOLENOID. Measure the resistance of shift lock solenoid terminals. Connector & terminal (B117) No. 3 - No. 4:	Is the resistance 7.0 - 21.0 Ω?	Go to step 6 .	Replace the shift lock solenoid. < Refer to AT SHIFT LOCK SOLENOID AND "P" RANGE SWITCH . >
6 CHECK OUTPUT SIGNAL OF BODY INTEGRATED UNIT. Connect all connectors. Turn the ignition switch to ON. With the brake pedal depressed, shift the select lever to "D" range. Measure the voltage between body integrated unit and chassis ground. Connector & terminal (B279) No. 12 (+) - Chassis ground (-):	Is the voltage 10.5 V or more?	Go to step 7 .	Go to step 8 .
7 CHECK OUTPUT SIGNAL OF BODY INTEGRATED UNIT. Lift up the vehicle. Start the engine. Set the select lever to the "D" range and slowly increase vehicle speed to above 20 km/h (12 MPH). NOTE: The speed difference between the front and rear wheels will illuminate the ABS warning light or VDC warning light, but this does not indicate a malfunction. If the warning light illuminates, delete the ABS or VDC memory after completing the AT control diagnosis. < Refer to CLEAR MEMORY MODE . > Measure the voltage between body integrated unit and chassis ground. Connector & terminal (B279) No. 12 (+) - Chassis ground (-):	Is the voltage less than 1 V?	Check the harnesses or connectors in reverse inhibitor control circuit, and repair the defective part.	Go to step 8 .
8 CHECK FOR POOR CONTACT.	Is there poor contact of the reverse inhibitor control circuit?	Repair the poor contact.	Replace the body integrated unit. < Refer to BODY INTEGRATED UNIT . >