ECM wire harness pin out

Tiny
CHRIS CARROLL2
  • MEMBER
  • 2008 PONTIAC TORRENT
  • 3.6L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
The vehicle is throwing a lot of random codes and is unable to communicate with the ECM. All electronics appear to work in the body except the vehicle starting. All things are pointing to ECM being faulty. All connections have been inspected for corrosion and all wires have been visually inspected. Before buying a replacement ECM we would like to test the wire harness. Where can I get the pin out for the ECM?
Tuesday, October 19th, 2021 AT 12:15 PM

1 Reply

Tiny
MASTER ASE TECH
  • MECHANIC
  • 82 POSTS
Hi, I'm Dan. I have attached a wiring diagram for the ECM. Hope this helps. Be mindful of the terminal ends, I've seen people trying to test the tiny terminals with a test light or other round probe and spreading out the terminals causing issues later down the road.
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Tuesday, October 19th, 2021 AT 1:03 PM

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