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 LAN SYSTEM. Perform the diagnosis for LAN system. < Refer to BASIC DIAGNOSTIC PROCEDURE . >	Is there any fault in LAN system?	Perform the diagnosis according to DTC for LAN system. < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >	Go to step 2 .
2 CHECK POOR CONTACT OF CONNECTORS.	Is there poor contact of VDCCM&H/U connector?	Repair the connector.	Go to step 3 .
3 CHECK OUTPUT OF STEERING ANGLE SENSOR WITH SUBARU SELECT MONITOR. Select "Current Data Display & Save" on the Subaru Select Monitor. Check the steering angle sensor output.	Does the output signal change?	Go to step 4 .	Check output of the steering angle sensor. < Refer to DTC C0071 STEER ANGLE SENSOR OP , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
4 CHECK OUTPUT OF YAW RATE & G SENSOR WITH SUBARU SELECT MONITOR. Select "Current Data Display & Save" on the Subaru Select Monitor. Check the yaw rate & G sensor output.	Does the output signal change?	Go to step 5 .	Check output of the yaw rate & G sensor. < Refer to DTC C0072 YAW RATE SENSOR COMMUNICATION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
5 CHECK VDCCM&H/U. Connect all connectors. Clear the memory. < Refer to CLEAR MEMORY MODE . > Perform the Inspection Mode. < Refer to INSPECTION MODE . > Read the DTC.	Is the same DTC displayed?	Replace the VDCCM only. < Refer to REPLACEMENT , VDC Control Module and Hydraulic Control Unit (VDCCM&H/U). >	Temporary poor contact occurs.