Operation CHARM
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S10/T10 P/U 2WD V6-173 2.8L
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Overvoltage Protection Relay
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Description and Operation
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Overvoltage Protection Relay: Description and Operation
PURPOSE
Inform the ECM that there is a basic generator over voltage problem.
OPERATION
If voltage is greater than 17.1 volts for 5 seconds at ECM terminal "B1", sets Diagnostic Fault Code 53.