PCM pinout wiring diagrams needed?

Tiny
DETHRATTLES
  • MEMBER
  • 2004 PONTIAC GRAND AM
  • 3.4L
  • V6
  • 2WD
  • AUTOMATIC
  • 80,000 MILES
Trying to find gremlins.
Tuesday, April 4th, 2023 AT 9:31 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Sure, here is a guide to show you how to test the connection and the PCM and engine wiring diagrams in the images below.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Please let us know if you need anything else to get the problem fixed.
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Tuesday, April 4th, 2023 AT 10:48 AM

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