After disconnecting the battery my key fob is not working, and my tire light is on.
Jun 14, 2025 at 11:55 PM
key fob not working after disconnecting the battery?
JOHNSK62
- MEMBER
- 2 POSTS
So what sometimes happens is the connection at the battery can cause a voltage surge which can distract the protocol for the CAN bus system. I would do a hard system reboot to restart the systems from scratch. This guide can show you how:
https://www.2carpros.com/articles/step-by-step-guide-performing-a-hard-system-reboot-for-your-vehicles-electronics-systems
Please go over this guide and get back to us.
https://www.2carpros.com/articles/step-by-step-guide-performing-a-hard-system-reboot-for-your-vehicles-electronics-systems
Please go over this guide and get back to us.
Jun 16, 2025 at 3:27 AM
Hi Ken L.I tried all 3 methods and nothing. I have a 2014 Subaru Forester 2.5l .Thanks...
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Jun 16, 2025 at 11:54 AM
Okay, lets check the fuse #4 and #15 in the fuse panel. Here is a guide to help you and the fuse locations in the image below.
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Check out the images (below). Please let us know what happens.
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Check out the images (below). Please let us know what happens.
Image (Click to enlarge)
Jun 16, 2025 at 11:46 PM
Both fuses are good...
Jun 18, 2025 at 11:13 AM
Okay, then it looks like the TPMS and keyless entry control module is out, here is the location so you can check it out. A CAN scan should help confirm it. It looks like it will need to be programmed in. Check out the images (below). Please let us know what happens.
Images (Click to enlarge)
Jun 19, 2025 at 2:43 AM