Operation CHARM
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Chevy Truck
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1994
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Lumina APV V6-191 3.1L
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Repair and Diagnosis
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Instrument Panel, Gauges and Warning Indicators
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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All Gauges Are Inaccurate
All Gauges Are Inaccurate
Connect a jumper wire from a good chassis ground to instrument cluster connector terminals "M" and "W". If all gauges are still inaccurate replace instrument cluster.