LEMON Manuals: Even more car manuals for everyone
Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> DTC P0608 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the ECM/PCM. Install a signal generator and instrument panel tester between the vehicle speed signal circuit and ground.
  2. Ignition ON, set the signal generator to generate a speedometer signal. Verify that the vehicle speedometer indicates a reading.
    • If no speedometer reading is present, test the signal circuit for an open/high resistance, a short to voltage or a short to ground. If the circuit tests normal, replace the instrument panel cluster (IPC).
  3. If all circuits test normal, test or replace the ECM/PCM.
scientia non olet · About LEMON Manuals