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4L80 Park Neutral Position Switch - which to wire to PCM #34?

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Old Feb 15, 2026 | 12:37 PM
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Default 4L80 Park Neutral Position Switch - which to wire to PCM #34?

Which of these pins on the 4L60/4L80 park neutral position switch should I send to the PCM blue connector #34 to tell the PCM the car is in park / neutral? Would this change the idle in park / neutral, or is this to prevent the car from starting outside of park / neutral?


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Old Feb 15, 2026 | 07:22 PM
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ORN/BLK wire goes to the C1 connector at the PCM pin 34.


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Old Feb 16, 2026 | 11:26 AM
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Originally Posted by bbond105
ORN/BLK wire goes to the C1 connector at the PCM pin 34.

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