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P1780 Diagnostic Trouble Code Discussion for January 2008

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, Poor Idle Quality, MIL Lamp on VIN: 1G8JW52RXY
P1780: Torque Reduction Request Failed. vehicle was brought in for an intermitant no start/ hard start issue. customer states that the vehicle will crank but not start. after several minutes of cranking vehicle will finally start, sometimes will idle very rough until driven, and the mil light will i...
January 29, 2008
2003 Saturn Vue 3.0L Hesitation, MIL Lamp on, Power loss VIN: 5GZCZ63B83
P1780: Torque Reduction Request Failed. Vehicle came in for wheel bearing work, brakes and power loss with MIL on. Checked for codes and found the three listed, did some preliminary research with minimal results. Cleaned the throttle bore, checked the spring tension on the drive-by-wire throttle pos...
January 30, 2008