VDC Warning Light And VDC Indicator Light Do Not Go Off

Detecting condition: 

• Defective combination meter
• Defective engine
• Defective CAN communication

Trouble symptom: 

VDC warning light and VDC indicator light do not go off when starting the engine.

1. READ DTC  .

   Read the DTC of [Brake Control] using the Subaru Select Monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) 

   Is DTC displayed?

   Yes  : Perform the diagnosis according to the DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST 

   No  : Go to  2.

2. CHECK VDC CONTROL MODULE  .

   Using the Subaru Select Monitor, read data of [VDC Warning Lamp] in the [Data Monitor] of [Brake Control]. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DATA MONITOR 

   Is [VDC Warning Lamp] set to [ON]?

   Yes  : Go to  3.

   No  : Go to  5.

3. CHECK WARNING LIGHT  .
   1. Save the freeze frame data. Ref. to BRAKE CONTROL (DIAGNOSTICS)>FREEZE FRAME DATA 
   2. Using the Subaru Select Monitor, perform the clear memory of [Brake Control]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY

   Does the VDC warning light & VDC operation indicator light go off?

   Yes  : Normal. Perform the inspection mode to check that the light does not turn ON again.

   No  : Go to  4.

4. READ DTC  .

   After driving the vehicle at 40 km/h (25 MPH) or more, read DTCs of [Brake Control] using Subaru Select Monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) 

   Is DTC displayed?

   Yes  : Perform the diagnosis according to the DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST 

   No  : Go to  5.

5. CHECK LAN SYSTEM  .

   Check the LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE

   Is the check result OK?

   Yes  : Go to  6.

   No  : Perform the diagnosis for LAN system.

6. CHECK COMBINATION METER  .

   Check the combination meter. Ref. to COMBINATION METER (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE

   Is the check result OK?

   Yes  : Replace the VDC Control Module & H/U. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDC CONTROL MODULE & H/U)

   No  : Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER>REMOVAL