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Indicator System Check

WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect scan tool to DLC. Establish communication with IPC. If scan tool communicates with IPC and no IPC DTCs are stored, go to next step. If scan tool does not communicate with IPC or IPC DTCs are stored, go to INSTRUMENT PANEL CLUSTER (IPC) DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Turn ignition off and back on again. IPC will perform an indicator bulb check by turning on the following indicators for 3 to 5 seconds:
    • BRAKE
    • CHECK GAUGES
    • ABS
    • SECURITY
    • MPH
    • Km/h
    • Traction
    • AIR BAG indicator will flash 7 times and turn off if air bag system is operating normally.
    • FASTEN SEAT BELT indicator will stay on until driver's seat belt is fastened.

    If one or more indicators do not operate, check that indicator bulb. If indicator bulbs are okay, replace inoperative bulb. If bulb is not serviceable, replace IPC assembly. See INSTRUMENT PANEL CLUSTER (IPC)  under REMOVAL & INSTALLATION. If indicators operate as specified, go to next step.

  3. Connect scan tool to DLC and select IPC special functions. Select following indicators and turn them on and off manually with scan tool:
    • ABS
    • AIR BAG
    • BRAKE
    • CHECK GAUGES
    • Km/h
    • MPH
    • SECURITY
    • TRACTION

    If one or more indicators do not operate, check inoperative indicator bulbs. If indicator bulbs are okay, replace IPC assembly. See INSTRUMENT PANEL CLUSTER (IPC)  under REMOVAL & INSTALLATION. If indicators operate as specified, go to next step.

  4. Operate left and right turn signals and note operation of instrument cluster turn signal indicators. If turn signal indicators operate with respective switch position, go to next step. If turn signal indicators do not operate, go to LEFT TURN INDICATOR INOPERATIVE  or RIGHT TURN INDICATOR INOPERATIVE  under SYMPTOM TESTS.
  5. Turn headlights on and activate high beams on and off. If high beam indicator operates with high beams, go to next step. If high beam indicator is inoperative, go to HIGH BEAM INDICATOR INOPERATIVE  under SYMPTOM TESTS.
  6. Close all doors and fasten driver's seat belt. If fasten seat belt indicator turns off, go to next step. If fasten seat belt indicator stays on, go to SEAT BELT INDICATOR INOPERATIVE  under SYMPTOM TESTS.
  7. Apply the parking brake. If BRAKE indicator comes on, go to next step. If BRAKE indicator always on, go to BRAKE WARNING INDICATOR ALWAYS ON  or BRAKE WARNING INDICATOR INOPERATIVE (WITH PARKING BRAKE ON)  under SYMPTOM TESTS.
  8. Depress traction control button to turn traction control on and off. If traction control indicator comes on when traction control is off, go to next step. If indicator does not operate as specified, go to TRACTION OFF INDICATOR ALWAYS ON  or TRACTION OFF INDICATOR INOPERATIVE  under SYMPTOM TESTS.
  9. Ensure traction control is OFF, high beams are OFF and turn signals are OFF. Fasten driver's seat belt and ensure transmission is in PARK position (automatic) or neutral (manual). Start engine and note indicator operation. The following indicators should not remain illuminated after engine is started:
    • SERVICE ENGINE SOON
    • 1-4 SHIFT
    • CHECK GAUGES
    • AIR BAG
    • ABS
    • BRAKE
    • SECURITY
    • Traction Control
    • km/h
    • MPH
    • High Beam
    • Left Or Right Turn Signal
    If indicators are not illuminated as specified, check is complete. If one or more indicator is illuminated, see following repair procedure for corresponding indicator:
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