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Code P1639 5 volts reference circuit 2

Tiny
ASEMASTER6371
  • MECHANIC
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You can get a subscription to Alldata for the truck and it will give you all the diagrams you need.

You are welcome.

Roy
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Wednesday, April 28th, 2021 AT 2:50 AM
Tiny
RADJOHN
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Was a broken pin on the PCM very corroded going from PCM to wiring harness.
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Tuesday, May 11th, 2021 AT 3:19 PM
Tiny
ASEMASTER6371
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Good find. Glad it is fixed.

Roy
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Tuesday, May 11th, 2021 AT 3:20 PM

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