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Home >> Subaru >> 2022 >> WRX Premium, Standard Trans >> Repair and Diagnosis >> Electrical >> Gauges >> Instrumentation System (Diagnostics) >> Diagnostics with Phenomenon >> Inspection >> Faster/Slower Vehicle Speed Than The Actual Speed Is Displayed

Faster/Slower Vehicle Speed Than The Actual Speed Is Displayed

Trouble causes: 

  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 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

    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  : Perform a unit inspection for the vehicle speed sensor.

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