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Home >> Mazda >> 2003 >> Protege ES, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1634: Generator Terminal "B" Circuit Open >> Detection Condition
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Detection Condition

DTC is set when PCM detects generator output is more than 16.97 volts and battery voltage is less than 10.94 volts for 5 seconds while engine is running.

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