Operation CHARM
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1994
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Roadmaster V8-350 5.7L
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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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Component Tests and General Diagnostics
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Circuit Operation - Instrument Cluster
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Low Fuel Indicator
Low Fuel Indicator
When the Fuel Gage registers less than
1/8
tank of fuel left, the Logic Chip in the I/P Cluster will ground the "LOW FUEL" Indicator because the logic Chip monitors the Fuel Sender resistance on CKT 30.