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P1780 Diagnostic Trouble Code Discussion for April 2009

Park/Neutral Position Switch Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1780
Help Request Posted
2001 Toyota Sienna LE 3.0L MIL Lamp on VIN: 4T3ZF13C71
P1780: Park/Neutral Position Switch Circuit Malfunction. hi - van came in with a p1780 - i replaced the neutral switch with a new oem switch and code cam back after it was shifted. checked with scan tool same code. i am able to read trans. data when i shift the p/n switch is always on and should read off in the othe...
April 24, 2009