Diagnostic Procedure

NO. 1: CHECK ANY OTHER DTC (BESIDES DTC P0760) ON DISPLAY 

Is there any other DTC on display?

• Yes: Inspect relevant DTC.
• No: Go to next step.

NO. 2: CHECK INHIBITOR SWITCH CIRCUIT 

Check inhibitor switch circuit.

Is there any trouble in inhibitor switch circuit? 

• Yes: Repair or replace inhibitor switch circuit.
• No: Go to next step.

NO. 3: CHECK GEAR POSITION 

1. Turn ignition switch to OFF.
2. Connect the Subaru select monitor to data link connector.
3. Lift-up or raise the vehicle and support with safety stands.
CAUTION: On AWD models, raise all wheels off ground.
4. Start and warm-up the engine and transmission.
5. Subaru select monitor switch to ON.
6. Select AT mode using function key. Press the function key [/], and change to AT mode.
7. Press the function key [0].
8. Designate mode using function key.

   Function mode for AT: F10 

9. Move selector lever to "D" and drive the vehicle.
10. Read data on Subaru select monitor.

    Does gear position change according to throttle position and vehicle speed? 

    • No: Go to next step.
    • Yes: Is there poor contact in TCM connector? 
      • Yes: Repair poor contact in TCM connector.
      • No: Is there any mechanical trouble in automatic transmission? 
        • Yes: Repair or replace automatic transmission.
        • No: Replace TCM.

NO 4: CHECK SHIFT SOLENOID 1 CIRCUIT 

Check shift solenoid 1 circuit.

Is there any trouble in shift solenoid 1 circuit? 

• Yes: Repair or replace shift solenoid 1 circuit.
• No: Go to next step.

NO 5: CHECK SHIFT SOLENOID 2 CIRCUIT 

Check shift solenoid 2 circuit.

Is there any trouble in shift solenoid 2 circuit? 

• Yes: Repair or replace shift solenoid 2 circuit.
• No: Go to next step.

NO 6: CHECK SHIFT SOLENOID 3 CIRCUIT 

Check shift solenoid 3 circuit.

Is there any trouble in shift solenoid 3 circuit? 

• Yes: Repair or replace shift solenoid 3 circuit.
• No: Is there poor contact in TCM connector?  .
  • Yes: Repair poor contact in TCM connector.
  • No: Is there any mechanical trouble in automatic transmission?  .
    • Yes: Repair or replace automatic transmission.
    • No: Replace TCM.