Check 4x4 Service Engine Soon???

[Biz]

Saturday when I started the vehicle this message popped up.
It appears to be only a visual message as the vehicle does go into 4x4 high and 4x4 low.
Ran a scan and there’s absolutely no codes to clear.
Pull the negative off the battery for 30 minutes put it back on, but the message still returns.
Anyone run into this before and if so, anyway, to clear it from the display?
I’ve driven 600 km since this happened and it doesn’t affect the vehicle whatsoever.
appreciate any input.

The vehicle has never been off road.
as a matter of fact, it’s only been in 4x4 high once last December.

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[Brian_B]

Usually this is a bad wheel speed sensor but you don’t have any codes

It’s also common to see if the Bronco detects excessive wheel slip - like on ice or in sand. Doesn’t necessarily mean anything is broken - but that usually will clear once you pull the battery.

Got me stumped on this one. I think there was a TSB for this for certain models, but don’t recall the details. Maybe one of those old threads will pop up in Similar Threads below

 

[Tavjon]

Did you change tire size with procal tuner recently?

 

[mjp2]

Check the wire bundle running into the back of the transfer case. Make sure nothing is chafed or broken in the wire bundle, and unplug/clean/plug-in the harness on the transfer case.

Also, unplug/clean/plug-in the connector mounted to the outside of the frame under the passenger side door.

 

[Biz]

Did you change tire size with procal tuner recently?

Not recently but it was changed.

 

[THE_SAVSQCH]

Check the wire bundle running into the back of the transfer case. Make sure nothing is chafed or broken in the wire bundle, and unplug/clean/plug-in the harness on the transfer case.

Also, unplug/clean/plug-in the connector mounted to the outside of the frame under the passenger side door.

This response is AWESOME! Very detailed and helpful. I know if I was OP and was concerned an answer like this is helpful.

Kudos to you!

 

[Tavjon]

Not recently but it was changed.

When I did my lift and bigger tires I changed the size in procal tuner and next day I got the same errors.

I emailed FPP CS and they gave me this which fixed issue

 

[helifino16]

According to the wife, if it starts and runs, you're OK. She usually waits until some light is urgently blinking to realize there may be an issue and mention it to me.

 

[Ducati1098]

Whatever you're using to pull the codes likely can't read the one it set.
If you send me your VIN I can look at VHR and see what it shows.

 

[Biz]

Check the wire bundle running into the back of the transfer case. Make sure nothing is chafed or broken in the wire bundle, and unplug/clean/plug-in the harness on the transfer case.

Also, unplug/clean/plug-in the connector mounted to the outside of the frame under the passenger side door.

Thanks.

Whatever you're using to pull the codes likely can't read the one it set.
If you send me your VIN I can look at VHR and see what it shows.

Sent

According to the wife, if it starts and runs, you're OK. She usually waits until some light is urgently blinking to realize there may be an issue and mention it to me.

Perfect!

 

[Biz]

When I did my lift and bigger tires I changed the size in procal tuner and next day I got the same errors.

I emailed FPP CS and they gave me this which fixed issue

Wasn't a procal, but I will attempt to get the unit back and maybe set them back to default size.

 

[Biz]

Update:
Huge thanks to @Ducati1098
He ran the VIN and found a TSB for the issue.
Dealer cleared the code today under powertrain warranty.
It was from the tire size change we did last year.
They were able to see it.
Why it popped up now, is unknown.
We had the battery disconnected for an hour last week to install the Form taillights.
Perhaps that tripped it. Ford electronics, Always a mystery.
For everyone who posted suggestions, really appreciate the help.
Hopefully this thread will help people in the future.
Thanks again!
Cheers!

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