LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Electrical >> Gauges >> Displays And Gages >> Diagnostic Information and Procedures >> Instrument Cluster Inoperative >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the IPC.
  2. Ignition ON, verify that a test lamp illuminates between the RUN/CRANK relay voltage circuit terminal 5 and a ground.
    • If the test lamp does not illuminate, repair the RUN/CRANK voltage circuit for a short to ground or an open/high resistance.
  3. Verify that a test lamp illuminates between the RUN/CRANK relay voltage circuit terminal 5 and the IPC ground circuit terminal 13.
    • If the test lamp does not illuminate, repair the IPC ground circuit for an open/high resistance.
  4. If all circuits test normal, replace the IPC.
scientia non olet · About LEMON Manuals