BCM wiring diagram?

2002 PONTIAC GRAND PRIX
200,000 MILES • 3.8L • 6 CYL • TURBO • 2WD • AUTOMATIC
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ISH1987
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Need wiring diagram for the BCM
Mar 31, 2026 at 4:28 PM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,354 POSTS
Sure, here is the wiring diagrams for the BCM and a guide to help you with the checking.

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

Check out the images (below). Let us know how it goes
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Attached Media
Apr 1, 2026 at 9:34 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.