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Home >> Oldsmobile >> 2001 >> Intrigue GL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1635: 5-Volt Reference "A" Circuit >> Code Enable Criteria
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Code Enable Criteria

Only condition for running this DTC is PCM detects a voltage out of tolerance condition on 5-volt reference "A" circuit for more than 10 seconds.

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