BCM will not communicate

Tiny
JONATHANMCGATHA
  • MEMBER
  • 2004 PONTIAC GRAND PRIX
  • 3.8L
  • 6 CYL
  • 2WD
  • 180,000 MILES
I plug my OBD2 code reader in and the computer will not communicate with reader. Is the BCM bad?
Saturday, September 8th, 2018 AT 12:45 AM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I am Danny.

I would first inspect the connections on the BCM and PCM for poor connection/dirt/corrosion first. I noticed that a few times with no OBD2 communication. The BCM is on the right below dash and the PCM is on the left below dash. I have attached pictures of what they look like. Hope this helps and feel free to ask any questions if needed. Thanks for using 2CarPros.
Danny-
Images (Click to make bigger)
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, September 8th, 2018 AT 9:13 PM

Please login or register to post a reply.

Related Electrical BCM Code Content

VIEW MORE

Sponsored links