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P1640 Diagnostic Trouble Code Discussion for March 2004

Output Driver 1 Voltage High Input


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Trouble Ticket Help Requests for DTC P1640
Help Request Posted
1994 Oldsmobile 88 Royale 3.8L MIL Lamp on VIN: 1G3HN52L3R
P1640: Quad driver 1 TCC apply and evapcanister purge. ... control problem, with no mention of MIL on. Cruise was repaired by replacing cruise brake pedal switch. During testing, found that P1640 Quad driver # 1 was setting. Code will set when transmission is shifted into reverse as long as brake is not applied (b...
March 09, 2004