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GMC Truck
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1994
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S15/T15 Jimmy 4WD V6-262 4.3L VIN Z
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Repair and Diagnosis
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Instrument Panel, Gauges and Warning Indicators
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Description and Operation
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Circuit Operation
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Malfunction Indicator Lamp (Service Engine Soon)
Malfunction Indicator Lamp (Service Engine Soon)
The
SERVICE ENGINE SOON
Indicator will light if a problem is detected by the ECM, PCM or VCM with the engine running and the vehicle moving.