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Test R: Service Engine Soon Indicator Inoperative Or Always On

NOTE: After repair, clear DTCs and repeat self-test.
  1. Turn ignition switch to OFF position. Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Turn ignition switch to RUN position. Select instrument cluster INDICATOR LIGHT CONTROL active command. Trigger active command MIL ON. If SERVICE ENGINE SOON indicator illuminates, repair as necessary. See SELF-DIAGNOSTICS - EEC-V in ENGINE PERFORMANCE. If SERVICE ENGINE SOON indicator does not illuminate, go to next step.
  2. Disconnect all instrument cluster connectors. Inspect connectors for corrosion and pushed out pins. Connect all instrument cluster connectors, ensuring they are connected correctly. Operate system and verify if concern is still present. If concern is still present, replace instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. If concern is not present, system is operating correctly at this time. Clear DTCs and repeat self-test.
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