Which fuse is the OBD2 port connected to?

Tiny
HASADIAH ACE COLEMAN
  • MEMBER
  • 2004 FORD ESCAPE
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 192,000 MILES
I know it's not the cigarette lighter and more than likely it's fuse 27 or 23.
Monday, August 29th, 2022 AT 9:34 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It is fuse #27.

Here is a guide to help you test it for power and I have included the ALDL connector wiring diagrams so you can see how the system works:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
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Monday, August 29th, 2022 AT 2:38 PM

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