Home/Oldsmobile/Cutlass/Oldsmobile Cutlass VI (1997-1999)/Repair manual/Testing & Diagnostics/DTC P1635 - 5-VOLT REFERENCE "A" CIRCUIT

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Wiring diagrams Section: Testing & Diagnostics

Connector Terminal Identification

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DTC P1635 - 5-VOLT REFERENCE "A" CIRCUIT Oldsmobile Cutlass VI

Testing & Diagnostics

Note. For circuit reference, see the appropriate WIRING DIAGRAMS article. For connector and terminal identification, see CONNECTOR IDENTIFICATION .

Circuit Description

Powertrain Control Module (PCM) monitors 5-volt reference "A" circuit. If voltage is out of tolerance, DTC P1635 will set.