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OBD2 port not working

Tiny
MATTSTLEF
  • MEMBER
  • 2003 FORD ESCAPE
  • AUTOMATIC
  • 100,000 MILES
Check engine light is on, so I hooked obd2 reader (Innova 3100) up, but nothing. I tested the reader on my 2016 F150 and a Toyota and it works. I checked fuses (including cig lighter fuse) but they were fine.

Does anyone have the wiring diagram for the obd2 port on this vehicle?
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Sunday, January 23rd, 2022 AT 7:05 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

I have attached the pinout as well as the wiring schematics for the OBD port.
There should be a 10A fuse in the junction box. If the fuse is good, then it is likely faulty or loose wiring.

Please let me know if you have any questions.
Thank you.

https://www.2carpros.com/articles/how-to-check-a-car-fuse
https://www.2carpros.com/articles/how-to-check-wiring
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Sunday, January 23rd, 2022 AT 9:05 PM

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