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 THROTTLE OPENING ANGLE SENSOR. Read the diagnostic trouble code (DTC) of engine using Subaru Select Monitor. < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > |
Is any of the following DTCs displayed: DTC P0122, P0123, P0222, P0223, P2109, P2135? | Perform the diagnosis according to DTC. | Go to step 2 . |
| 2 CHECK DTC. | Is DTC P1718 displayed? | Perform the diagnosis according to DTC. | Go to step 3 . |
| 3 CHECK AT VEHICLE SPEED SENSOR CIRCUIT. Perform the diagnosis according to DTC P0720. < Refer to DTC P0720 OUTPUT SPEED SENSOR CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
Is there any trouble? | Check the harness of the front vehicle speed sensor circuit, and repair the defective part. | Go to step 4 . |
| 4 CHECK AT TURBINE REVOLUTION SPEED SENSOR CIRCUIT. Perform the diagnosis according to DTC P0715. < Refer to DTC P0715 INPUT/TURBINE SPEED SENSOR CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
Is there any trouble? | Check the torque converter turbine speed sensor circuit. | There are malfunctions in TCM, TCM connector poor contact, or transmission assembly mechanical malfunction. |