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P0850 Diagnostic Trouble Code Discussion for February 2011

Park Neutral Switch Performance

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Trouble Ticket Help Requests for DTC P0850
Help Request Posted
2004 Lexus LS430 4.3L MIL Lamp on VIN: JTHBN36F04
P0850: Park Neutral Switch Circuit Malfunction. This code is set when the park neutral PID always indicates on, meaning the gear selector is in the park or neutral position, when the vehicle is in motion. The PCM provides a 12 volt signal that is taken to ground when the trans is shifted into park or neutra...
February 22, 2011