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Home >> Chevrolet >> 1999 >> Venture Base, Van Cargo Extended >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel Displays & Instrument Panel Gages >> System Tests >> Service Engine Soon Indicator Is Off When Ignition Is In Run (Engine Not Running)

Service Engine Soon Indicator Is Off When Ignition Is In Run (Engine Not Running)

  1. Turn ignition switch to RUN position. If SERVICE ENGINE SOON indicator illuminates, go to next step. If SERVICE ENGINE SOON indicator does not illuminate, go to ALL GAUGES & INDICATORS (EXCEPT TURN SIGNALS, HIGH BEAM & SEAT BELT INDICATOR) INOPERATIVE  test.
  2. Disconnect Powertrain Control Module (PCM) Clear 80-pin connector C2. Connect a 3-amp fused jumper wire between PCM harness connector C2, terminal No. 5 (Brown/White wire) and ground. If SERVICE ENGINE SOON indicator illuminates, go to appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If SERVICE ENGINE SOON indicator does not illuminate, go to next step.
  3. Check for poor connection or open in circuit No. 419 (Brown/White wire) between PCM connector C2, underhood accessory wiring junction block and instrument cluster Natural 18-pin connector C1. Repair as necessary and recheck system operation. If circuit is okay, go to next step.
  4. Check SERVICE ENGINE SOON indicator bulb and bulb connection. Repair as necessary and recheck system operation. If bulb and bulb connection are okay, replace instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. Recheck system operation.
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