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P1780 Diagnostic Trouble Code Discussion for May 2012

Park/Neutral Position Switch Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1780
Help Request Posted
2000 Toyota 4Runner SR5 3.4L MIL Lamp on VIN: JT3HN86R6Y
P1780: Park/Neutral Position Switch Circuit Malfunction. ... sets code on second key on all the time P1780 park reverse nutrel switch, one shop replaced the park nutrel switch on transmission, another installed a computer. Noticed that when in other gears the reverse light in the cluster would be really dim, and whe...
May 21, 2012