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Malfunction Indicator Light

  1. Carry Out The Instrument Cluster Warning Lamps And Chime Active Command Using Diagnostic Tool

    Turn ignition off. Connect scan tool to DLC. Turn ignition on, engine off. Select instrument cluster WARNING LAMPS AND CHIME active command. Trigger ALL LAMPS active command. Observe Malfunction Indicator Lamp (MIL). If MIL is illuminating, refer to DIAGNOSTIC TROUBLE CODE DEFINITIONS . If MIL is not illuminating, go to next step.

  2. Check For Correct Instrument Cluster Operation

    Disconnect all instrument cluster harness connectors. Check for corrosion and pushed out pins. Reconnect all instrument cluster connectors and make sure they seat correctly. Operate system and verify concern is still present. If concern is still present, replace instrument cluster. Test system for normal operation. If concern is not present, system is operating correctly at this time. Concern may have been caused by a loose or corroded terminal or connector. Clear DTCs and repeat self-test. See CLEARING CODES  and KOEO & KOER SELF-TEST  under SELF-DIAGNOSTIC SYSTEM.
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