4x4 Temporarily Disabled

JeepersCreepers
Feb 03, 2022

Rank II

Feb 03, 2022

I received some good feedback on this problem elsewhere but the discussion got short-circuited by The Powers That Be. Whatever -- no big deal.

TLDR; I took my Bronco Badlands Sasquatch 4-door 2.7L/Lux wheeling. I promptly got stuck. I luckily had my Jeep Wrangler (TJ) on 38s with me, driven by a friend of mine, but that wasn't enough. I needed a second Jeep friend to aid in rescuing my Bronco because the Bronco refused to let me have 4 wheel drive. I would like to receive additional troubleshooting commentary from folks who may have experience with this issue.

Things started off happily enough.

IMG-2447.jpg


IMG-2448.jpg

Got stuck on an icy climb. Then, the electronics took over and the Bronco refused to let me have 4-wheel drive in any flavor. Here's the dashboard message I received.

IMG-2452.jpg

That's a gigantic WTF, when you're here:

IMG-2451.jpg

(as usual, the photos don't do justice to the grade. This is a steep, icy, narrow section of trail.)

Now. Here's where photography and real life collide. Notice the 4A?

It wasn't in 4A. It was in 4L. I took the photo a little later, after I started receiving the message, and tried cycling through all of the various 4WD modes to include 4L, 4H and 4A. If you don't have a Badlands or Wildtrak, this is a mode which you won't see on your Bronco. So before anyone comments on that...

Again, I was on this trail in 4L from the start, and this problem developed while I was in 4L. I was NOT in 4A or 4H.

Let me be specific so the best possible trouble-shooting may occur. (Would appreciate insight from anyone familiar with this issue.)

Here's how I got stuck. Scenario: Climbing a snow-covered, icy hill. I've done this trail before with no snow, and I know where the rocks are. I avoid the rocks, I get past the rocks. I hit ice. I slide back. Rear diff glides up onto a slickery rock which keeps the rear wheels ever so slightly elevated -- like a half inch to an inch off the ground.

I try getting the Bronco off the rock. No more than 30 seconds of this elapse before I get the "4 wheel drive temporarily disabled" message you see above.

Ultimately this necessitated my own Jeep climbing around me on a crazy steep section of trail to winch me up. Of course, there's nothing to winch off of up above so we need a second Jeep and we run a snatch block off of that Jeep's bumper. Ultimately, we got the Bronco out thanks to the two Jeeps and the one functioning winch available. First photo, below, is before the Bronco started dragging Jeeps down the ice as the Jeep to your left started sliding around. Second photo, a little blurry in terms of the Jeeps, shows both Jeeps wedged up against rocks so they could winch the poor Bronco out. The entire time - the Bronco refused to allow me to utilize 4WD of any kind.(sigh. embarassing)

IMG-2450.jpg
IMG-2453.jpg

This message, according to the owner's manual, means the 4WD system is "overheated," which is strange because I was only a mile into this trail and it was 10 degrees below freezing out. LOL

Now here's what's strange. It appears the solution to this problem is to "drive the Bronco on a flat surface for a short period of time to reset the sensors." That's a pretty dumb solution for a vehicle designed to be taken on adventures like this one.

I did manage to get the darned thing backed down the trail, and turned around. Here's the "hero" shot of my reliable Jeep, still in its hero pose, and the Bronco on its way out in the distance.

IMG-8208.jpgIMG-8209.jpg

But when I got it back to the parking lot, all the error messages cleared and it drove normally. I tried 4L, 4H, 4A... no problem. Everything worked the way it should.

I would love some insight from anyone at Ford as to why this may have occurred.

Possible factors include:

1) Excessive rear wheel spin due to the diff being (slightly) hung up on a rock.
2) A "wrench" icon appearing with the message "check rear locking differential," like a service message.

Kindly advise, anyone who may know. Thank you!

-JC

Attachments

Bschurr
Last edited by a moderator: Feb 03, 2022

Rank VI

Feb 03, 2022

#1
I wonder if it’s purely a sensor issue. Like, snow got into a connector and melted, causing erroneous temperature readings.
I’ll be interested to hear what the experts say.

Glad you weren’t alone!

No Ragerts

Feb 03, 2022

#2
I received some good feedback on this problem elsewhere but the discussion got short-circuited by The Powers That Be. Whatever -- no big deal.

TLDR; I took my Bronco Badlands Sasquatch 4-door 2.7L/Lux wheeling. I promptly got stuck. I luckily had my Jeep Wrangler (TJ) on 38s with me, driven by a friend of mine, but that wasn't enough. I needed a second Jeep friend to aid in rescuing my Bronco because the Bronco refused to let me have 4 wheel drive. I would like to receive additional troubleshooting commentary from folks who may have experience with this issue.

Things started off happily enough.

View attachment 27774


View attachment 27775

Got stuck on an icy climb. Then, the electronics took over and the Bronco refused to let me have 4-wheel drive in any flavor. Here's the dashboard message I received.

View attachment 27777

That's a gigantic WTF, when you're here:

View attachment 27778

(as usual, the photos don't do justice to the grade. This is a steep, icy, narrow section of trail.)

Now. Here's where photography and real life collide. Notice the 4A?

It wasn't in 4A. It was in 4L. I took the photo a little later, after I started receiving the message, and tried cycling through all of the various 4WD modes to include 4L, 4H and 4A. If you don't have a Badlands or Wildtrak, this is a mode which you won't see on your Bronco. So before anyone comments on that...

Again, I was on this trail in 4L from the start, and this problem developed while I was in 4L. I was NOT in 4A or 4H.

Let me be specific so the best possible trouble-shooting may occur. (Would appreciate insight from anyone familiar with this issue.)

Here's how I got stuck. Scenario: Climbing a snow-covered, icy hill. I've done this trail before with no snow, and I know where the rocks are. I avoid the rocks, I get past the rocks. I hit ice. I slide back. Rear diff glides up onto a slickery rock which keeps the rear wheels ever so slightly elevated -- like a half inch to an inch off the ground.

I try getting the Bronco off the rock. No more than 30 seconds of this elapse before I get the "4 wheel drive temporarily disabled" message you see above.

Ultimately this necessitated my own Jeep climbing around me on a crazy steep section of trail to winch me up. Of course, there's nothing to winch off of up above so we need a second Jeep and we run a snatch block off of that Jeep's bumper. Ultimately, we got the Bronco out thanks to the two Jeeps and the one functioning winch available. First photo, below, is before the Bronco started dragging Jeeps down the ice as the Jeep to your left started sliding around. Second photo, a little blurry in terms of the Jeeps, shows both Jeeps wedged up against rocks so they could winch the poor Bronco out. The entire time - the Bronco refused to allow me to utilize 4WD of any kind.(sigh. embarassing)

View attachment 27780
View attachment 27781

This message, according to the owner's manual, means the 4WD system is "overheated," which is strange because I was only a mile into this trail and it was 10 degrees below freezing out. LOL

Now here's what's strange. It appears the solution to this problem is to "drive the Bronco on a flat surface for a short period of time to reset the sensors." That's a pretty dumb solution for a vehicle designed to be taken on adventures like this one.

I did manage to get the darned thing backed down the trail, and turned around. Here's the "hero" shot of my reliable Jeep, still in its hero pose, and the Bronco on its way out in the distance.

View attachment 27782View attachment 27783

But when I got it back to the parking lot, all the error messages cleared and it drove normally. I tried 4L, 4H, 4A... no problem. Everything worked the way it should.

I would love some insight from anyone at Ford as to why this may have occurred.

Possible factors include:

1) Excessive rear wheel spin due to the diff being (slightly) hung up on a rock.
2) A "wrench" icon appearing with the message "check rear locking differential," like a service message.

Kindly advise, anyone who may know. Thank you!

-JC
Looks like a ton of fun and glad you were able to work it all out.
Did you throw a scanner on there? Any codes?
BTW - is that Mahwah?
- 2023 Raptor / Shadow Black / MGV (DOB 8/30/23)
- 2023 Heritage Limited Edition / Robin’s Egg Blue / 4dr / (stolen from my dealer 11/15/23)

Rank V

Feb 03, 2022

#3
This is why I like manual lever actuated transfer cases.
Moderator

Defeated by Mickey’s Hot Tub

Feb 03, 2022

#4
2021 Badlands, 4 door, 2.7L, Auto, LUX, SAS, Tow Package, MIC, Velocity Blue.

Rank V

Feb 03, 2022

#5
I will try and make this quick and easy. Also, this is a difficult diagnose because I do not know what transfer case the Bronco is using and cant find it anywhere so, if anyone has confirmation on the type of TC please chime in. This is my guess of what is going on but need more info from Ford. Here it is.
As far as I know Ford is using 3 transfer cases in their F150s so Im guessing that is what is being used in the Bronco or damn close.
1. Electronic shift on the fly (ESOF) - mechanically locks front/rear drivshaft.
2. Torque on Demand (TOD) - uses clutches to drive front/rear driveshaft. This is the TC with 4A mode.
3. Hi Loc (Raptor) - Best of both worlds. TOD for 4A mode & uses dog clutches to transfer to mechanical locking of Front/Rear driveshaft in 4L/4H mode.

My theory is that the Bronco with the Advanced TC 4A mode (excluding Bronco Raptor) is using the TOD transfer case and that your clutches heated up and went into safe mode to protect it. I’ve seen a lot of Broncos doing hard core stuff and this limp mode seems to be rare as of now. Here are some possibilities.
1. Maybe when your rear wheels got high centered in put a lot of work on the front drivetrain and the clutches got hot?
2. Transfer case fluid is low? I would check it and honestly have Ford put new fluid in to see if that helps solve the problem.
3. Maybe something is wrong with the clutch pack from factory? If you continue to have this problem see if Ford will replace the clutch pack.
Now this is only if the Bronco has the TOD transfer case and uses the clutch pak for 4A/4L/4H modes, which again I DO NOT have confirmation on this.

Side note: Bronco Raptor has improved Transfer Case with upgraded clutches. Does this mean it has the F150 Raptor Hi Loc or TOD with heavy duty clutches?

Hope this helps somewhat and if you find a definitive answer to the 4wd safe mode that you experienced, please share.
One more thing & this is for everyone. When the Bronco goes into this safe mode you should be able to just let it sit for awhile with engine running and the clutches should cool off and the system should reset. So, no need to winch it out.
Just be patient and let them cool off, You can also drive it in this mode if possible (not stuck) and it wont hurt it. Its a safety device to protect the system .
[O=••••=O]

Rank II

Feb 03, 2022

#6
Thanks, Daisy. I can tell you know what you're talking about because I've preliminarily come to some similar conclusions.

I have the Badlands/Sasquatch/2.7L/Lux with the "advanced" 4x4 package. I believe the presence of 4A changes which transfer case I've got. I still don't know which one that is yet, specifically.

I believe something triggered this so-called "limp" mode as a form of self-preservation, but I'm baffled about it because...

a) I had just started out on the trail. Maybe 3/4 mile in with some mild to moderate terrain -- deep snow. Nothing crazy at all early on.
b) I hadn't engaged the lockers prior to getting stuck.
c) It was maybe 23 degrees F outside. Cold.

As a result I just can't see how anything got overheated at that point.

Here's a little bit more detail. I was blazing the trail in the Bronco. My buddy was driving my Jeep, behind me.

The snow was probably high enough to at least touch the diffs, maybe the axles. We were in the middle of a storm that hit the NE last weekend.

I was trying to get up this hill. There was a big rock on the right side of the trail. I avoided that, to the left, got past it, but started sliding. Over the course of maybe 30 seconds I ended up with the diff gently backed up on that rock. That's when I engaged both front and rear lockers. The wheels seemed to have purchase but as I kept gunning it in 4L, the snow melted away and became ice.

With the wheels spinning and wondering why the front tires couldn't pull me off, I got the "4x4 temporarily disabled" message I shared.

Total time from start of "incident" to time of "message" was maybe 1-2 minutes. I gunned the truck any number of times during that period, trying to get free.

It was baffling to me because in a Jeep I could just pull myself off with 4 wheel drive. The front axle can do the work. I tried 4H, 4A, 4L, and once in awhile I could see the front tires spinning, but not usually. When they would spin, I'd sometimes get a message on the dash: "4x4 restored." As soon as they started spinning, they'd stop again and I'd get the message, "4x4 temporarily disabled."

Utterly infuriating.

I'm mostly interested in understanding why this happened in the first place, and what I could do in the future to restore 4 wheel drive when the electronics decide I shouldn't have it. Seems like I should have an override or something!

Thank you for any insights.

-JC

Rank V

Feb 04, 2022

#7
I agree 100% that the front axles should have been locked and pulled the rear off the rock. I also would really like to know the culprit. I still believe it has to do with the clutches in that TC. Of course it could be something else like a mentioned or some software problem? These Broncs have been spinning tires at Moab, Rubicon trail, in TX heat and so on with not going into limp mode, so unfortunately, I really do think its something specific to your Bronco unless we see a lot more complaints about it.
Also, was it spinning individual tires constantly front to rear without the lockers engaged? If so, maybe that was enough to heat it up, I just don’t know? I agree with you though, the clutch pack should not heat up that quick!
By chance could you crawl under it and see if there is a tag on the TC. It should be a Borg Warner 2 speed ITM. Should have model # on it like #4417 or similar. At least then we would know if it is a TOD & uses clutch pack for all modes including clutch lock for 4L/4H.
[O=••••=O]

Rank V

Feb 04, 2022

#8
Btw: That safety feature cant be overridden nor should it be allowed because that completely protects the Transfer case from burning up, so its a good thing. Just have to find out why yours activated so quick. Ford definitely needs to take a look into it! Hope you get it figured out so you can enjoy the Bronco the way its meant to be wheeled.
[O=••••=O]

Rank VI

Feb 04, 2022

#9
OP thanks for sharing. I want to focus on when you engaged the lockers. Nothing else.
I read the manual from back to front (Weird I guess).
I could have sworn that I read in there somewhere that if the lockers were engaged and the vehicle went over 20 mph, the system would shut it down for self protection. I will try to dig that up.
Screenshot_20220203-205730_Chrome.jpg

Rank II

Feb 04, 2022

#10
OP thanks for sharing. I want to focus on when you engaged the lockers. Nothing else.
I read the manual from back to front (Weird I guess).
I could have sworn that I read in there somewhere that if the lockers were engaged and the vehicle went over 20 mph, the system would shut it down for self protection. I will try to dig that up.

Thanks, Tits. Well, I didn't have them engaged at all until I got stuck (forgot, like I have any number of times in my Jeep over all kinds of obstacles.). But to your point, I didn't exceed 20mph or even 1mph for that matter. And I even tried disconnecting to see if I could get out. I tried every combination imaginable. I appreciate the thought! Any other ideas, let me know!

-JC

Rank VI

Feb 04, 2022

#11
Damn JC.
Only reason I am familiar with all this is I have overheated a truck before by running 4L for too long and too hard.
I have attached the page from the owners manual which should be helpful for anyone with lockers.
I have rear lockers with my BD.
Tits
Screenshot_20220203-210925_Chrome.jpg
Daisy76

Rank V

Feb 04, 2022

#12
Ok JeepersCreepers,
I got some new info & I think this is exactly what happened to you.
In a TOD transfer case, if you get stuck in deep mud/snow/sand etc. and the front axle needs more torque than the clutches can provide, the front driveshaft may not even turn or turn sporadically which will overheat the clutch pack and go into safe mode until the clutches cool off. So, I think when your rear end was on that rock it put all the torque on the front axle which needed more torque than the clutches could provide and heated them up and forced the disabled 4wd. Just have to confirm that the TC is a TOD and if so, I would say this is the cause of the safe mode activating. You may have just had the perfect circumstance. I would go back out and put the 4wd system through another test, maybe even a tougher one & see if it happens again. I know you don’t have many miles on it but I would still change the fluid out for good measure.
[O=••••=O]
TitsLaRue

Rank XXXXXXVVVVVIIII

Feb 04, 2022

#13
@Daisy76 thank you for you helpful and insightful comments it seems so many who don't know any more than the individual who asked a question are quik to jump in with opinions in sure jeepers really appreciates the help
TitsLaRue, Daisy76

Rank VI

Feb 04, 2022

#14
There’s a very long thread on the f150 forum about this issue:
https://www.f150forum.com/f118/4x4-temporarily-disabled-436526/index2/
The upshot is: there are multiple possible causes, but the most common seems to be a bad electrical connector or solenoid.
JeepersCreepers

Rank II

Feb 04, 2022

#15
Thank you Daisy. @Cornwelltoolman is 100% correct, I really appreciate this. And to his point, it is nice to hear from someone genuinely knowledgeable. Do you work for Ford? Thanks again.
Cornwelltoolman, Daisy76

Rank V

Feb 04, 2022

#16
Your welcome & no I don’t work for Ford (prob should-haha). Just a longtime gearhead & off-roader that has owned plenty of Fords. Ive also had some setup TJs in the past but grew up with 1st Gen Broncs so the Bronco will always have a special place in my heart. Still waiting on my 2door Badlands to hit the trails with.
[O=••••=O]
Cornwelltoolman, Sdakotabronco

Rank XXXXXXVVVVVIIII

Feb 04, 2022

#17
Your welcome & no I don’t work for Ford (prob should-haha). Just a longtime gearhead & off-roader that has owned plenty of Fords. Ive also had some setup TJs in the past but grew up with 1st Gen Broncs so the Bronco will always have a special place in my heart. Still waiting on my 2door Badlands to hit the trails with.
hang in there I know the wait sucks but it is so worth it!

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