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Home >> GMC >> 2022 >> Hummer EV >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Displays And Gauges >> Diagnostic Information and Procedures >> Speedometer and/or Odometer Malfunction >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On / Vehicle - In Service Mode
  2. Verify no other DTCs are set.
    • Go to next step: If no other DTCs are set 
  3. If applicablePerform the scan tool control function: Driver Information Center Segments

    Verify the component activates: Driver Information Center Segments - All

    • If the component does not work as specified 

      Replace the component: P16 Instrument Cluster

    • Go to next step: If the component works as specified 
  4. Verify the function: Gauge-Speed = Vehicle Speed.
    • If not the specified state 

      Replace the component: P16 Instrument Cluster

    • Go to next step: If the specified state 
  5. Verify the function: OdometerIncrements - Vehicle driving.
    • If the parameter value does not increment 

      Replace the component: P16 Instrument Cluster

    • If the parameter displays the following:- - - 
    1. Verify the scan tool parameter: Odometer Lock Status = Inactive
      • If the parameter displays the following: Inactive

        Refer to: Circuit/System Testing A

      • Go to next step: If the parameter displays the following: Active

        Go to next step: Refer to: Circuit/System TestingB

    • Go to next step: If the parameter value increments 
  6. All OK.
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