Faster/Slower Vehicle Speed Than The Actual Speed Is Displayed

Trouble causes: 

• CAN communication failure
• Vehicle speed sensor malfunction
• Combination meter malfunction

1. CHECK THE ACTUAL VEHICLE SPEED  .

   Check that the vehicle speed indicated in the meter matches with the actual vehicle speed.

   Does the vehicle speed match?

   Yes:  Currently, it is normal.

   No:  Go to  2.

2. CHECK DTC  .

   Read the DTC of [Combination Meter] using the Subaru Select Monitor. Ref. to COMBINATION METER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Is DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE displayed?

   (Current code)

   Yes:  Perform the diagnosis according to the basic diagnostic procedure in LAN SYSTEM (DIAGNOSTICS). Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .

   No:  Go to  3.

3. CHECK SPEEDOMETER  .

   Using the Subaru Select Monitor, check the following items in the [Active Test] of [Combination Meter]. Ref. to COMBINATION METER (DIAGNOSTICS)>ACTIVE TEST .

   • Speedometer

   Do the indicated vehicle speed on Subaru Select Monitor and the speedometer indication match?

   Yes:  Check the vehicle speed sensor unit. Ref. to VEHICLE STABILITY CONTROL>FRONT ABS WHEEL SPEED SENSOR>INSPECTION . Ref. to VEHICLE STABILITY CONTROL>REAR ABS WHEEL SPEED SENSOR>INSPECTION .

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