LEMON Manuals: Even more car manuals for everyone
Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> Chime Always On >> Circuit/System Testing

Circuit/System Testing

  1. Ignition ON, headlamp switch OFF, verify the scan tool Headlamp Switch parameter is Inactive.
    • If not Inactive, test the headlamp input signal circuit for an open or short to voltage. If the circuit tests normal, replace the headlamp switch.
  2. Ignition ON, park lamp switch OFF, verify the scan tool Park Lamp Switch parameter is Inactive.
    • If not Inactive, test the parklamp signal circuit for an open or short to voltage. If the circuit tests normal, replace the headlamp switch.
  3. Ignition OFF, key out of the ignition, verify the scan tool Key In Ignition Status parameter is Key Out.
    • If not Key Out, test the key in ignition signal circuit for an open or short to voltage. If the circuit tests normal, replace the ignition switch.
  4. Ignition ON, doors closed, verify the scan tool Door Ajar Switch parameters are Inactive.
  5. Ignition ON, rear gate closed, verify the scan tool Liftgate Ajar Switch parameter and the Liftglass Ajar Switch parameter are Closed.
  6. If all circuits test normal, replace the BCM.
scientia non olet · About LEMON Manuals