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OBD-II port is not getting power?

Tiny
MEHDIAB
  • MEMBER
  • 2017 HONDA CRV
  • 126,000 MILES
I changed my car battery and after that the key remotes are no longer working and the OBD-II port is no longer getting power.
Wednesday, March 27th, 2024 AT 6:23 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
It sounds like you had a power surge, and some fuses might have blown. Let's use this guide to check the fuse and in particular the fuse for the OBD2 port which is fuse# 18 in the fuse panel under the hood on the left side.

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

Also, can I ask if the battery was connected backwards? Check out the images (below). Please let us know what happens.
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Wednesday, March 27th, 2024 AT 9:42 AM
Tiny
MEHDIAB
  • MEMBER
  • 2 POSTS
Hello. Changning fuse 18 worked so thank you very much for your help. I think there was surge from one of the boosters I used to start the car when the battery was dead. Thank you again!
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Wednesday, April 3rd, 2024 AT 10:22 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Glad you could get it fixed, thanks for letting us know. Please use 2CarPros anytime we are here to help.
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Thursday, April 4th, 2024 AT 7:41 AM

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