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P1780 Diagnostic Trouble Code Discussion for October 2007

Park/Neutral Position Switch Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1780
Help Request Posted
2000 Saturn LS2 3.0L No Start, MIL Lamp on VIN: 1G8JW52R2Y
P1780: Torque Reduction Request Failed. Vehicle brought for a problem while driving would die out, but would start back up immediately. Now stalls during warm up and will not start back up until it cools off for approximately 1/2 hour. Likewise, fuel pump is not working and we have a computer ground...
October 22, 2007
2000 Saturn LS2 3.0L No Start, Cuts out, Stall, MIL Lamp on VIN: 1G8JW52R5Y
P1780: Torque Reduction Request Failed. ... Originally, customer was driving for an hour or so, in 95 degrees, stopped, and came back out and vehicle wouldn't start. MIL light on. After about 5 minutes, of cooling, vehicle started. Drove around for a few days, then as he pulled into apt complex, veh...
October 30, 2007