Abs Warning Light Does Not Go Off

Detecting condition: 

• Defective combination meter
• Defective engine
• Defective CAN communication

Trouble symptom: 

ABS warning light does not go off when starting the engine.

1. READ DTC  .

   Read the DTC using Subaru Select Monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   DTC Check 

   Is DTC displayed?

   Yes:  Perform the diagnosis according to DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST .

   No:  Go to  2.

2. CHECK VDC CONTROL MODULE  .

   Display the data monitor of VDC CONTROL MODULE using Subaru Select Monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DATA MONITOR .

   Data Monitor 

   Is [ABS Warning Lamp] 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. Ref. to COMMON (diag)>CLEAR MEMORY .

      Clear memory 

      Does the ABS warning 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 using Subaru Select Monitor. Ref. to BRAKE CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   DTC Check 

   Is DTC displayed?

   Yes:  Perform the diagnosis according to DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST .

   No:  Go to  5.

5. CHECK LAN SYSTEM  .

   Perform the diagnosis for LAN system using the Subaru Select Monitor. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

   Is DTC of CAN communication displayed?

   Yes:  Perform the diagnosis according to DTC. Ref. to LAN SYSTEM (DIAGNOSTICS)>CAN Communication Circuit Check>LIST .

   No:  Go to  6.

6. CHECK COMBINATION METER  .

   Check the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>Combination Meter System>OPERATION>SELF-DIAGNOSIS DISPLAY MODE .

   Is the check result OK?

   Yes:  Replace the VDC CONTROL MODULE & H/U.

   No:  Replace the VDC CONTROL MODULE & H/U. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .