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P1780 Diagnostic Trouble Code Discussion for February 2007

Park/Neutral Position Switch Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1780
Help Request Posted
1996 Toyota Corolla DX 1.8L MIL Lamp on VIN: 2T1BB02E4T
P1780: Park/Neutral Position Switch Circuit Malfunction. ... shop last month after check engine light on. scanned it code p1780 p/n switch malfuntion. so i order new on at toyota dealer. put it in then 2 weeks later . it come on again. the scanned data show the on value at park and neutral. then off drive/thank very...
February 27, 2007