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P1635 Diagnostic Trouble Code Discussion for January 2006

5-Volt Reference 'A' Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1635
Help Request Posted
2002 Buick Rendezvous CX 3.4L MIL Lamp on VIN: 3G5DA03E22
P1635: 5-Volt Reference 'A' Circuit Malfunction. This vehicle came in with no running problems. It also has Codes U1000 and B1000. Only problem is that SERVICE VEHICLE SOON light is on and the remote won't lock or unlock the doors. Light came on and remote quit working at the same time. Vehicle has a couple ...
January 05, 2006