2023 F600 no RTM module installed

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Apr 29, 2026 | 12:08 PM

Kris with a K

Thread Starter

7th Gear

Joined: Nov 2016

Posts: 7

Likes: 1

2023 F600 no RTM module installed

Got this truck 2023 f600 new a year ago and the tpms and key fob have been working fine. We are now getting no tpms pressure on dash with a flashing light, and no keep fob working. I'm getting tpms codes and rtm module offline codes. Flow chart brings me to check the r t m module itself.But when I go to the location, it's not even installed on this truck.There's just a loose pigtail there and mounting spot. The wire colors are correct.The pigtail has power and ground. How was this originally working if there's no rtm module installed? Can't find any information about ford changing the way this system works. Anyone seen this before?

Apr 29, 2026 | 03:07 PM

1olddogtwo

Cargo Master

Joined: Apr 2018

Posts: 2,406

Likes: 1,123

Are you sure you had it on the F600?

It's not even an option on the f550s, I probably would have ordered it on my 24 models if it was.

It just became an option on the f-450 PU's for the new models.

Apr 29, 2026 | 04:19 PM