ECM wire harness pin out

2008 PONTIAC TORRENT
150,000 MILES • 3.6L • 6 CYL • 4WD • AUTOMATIC
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CHRIS CARROLL2
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  • 1 POST
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?
Oct 19, 2021 at 5:15 AM
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MASTER ASE TECH
  • ✓Experienced Mechanic
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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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Oct 19, 2021 at 6:03 AM
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