Sponsored

THE FIX FOR LOCKERS: Blinking lights, service axle locker system, lockers wont engage/disengage

Status
Not open for further replies.

MojitoJLUR

Well-Known Member
Joined
Jan 11, 2018
Threads
21
Messages
1,454
Reaction score
1,721
Location
Detroit, MI
Vehicle(s)
2018 JLUR Mojito
Hey @MojitoJLUR did you buy one or two harnesses?

I posted earlier in this thread how I narrowed down it was my front locker… so I only needed one.

Also that code you posted relates to losing contact to security gateway… id check your connection to taser and clear that cel.
I did basically the same. When I use my tazer to say rear lockers only, the issue is still there. So I'm hoping it's only the rear since there is no way to check the front only. I only bought one harness for now, put the harness on, and kept it at rear only, and still had the message.

I have had other electrical wiring issues where it threw codes, such as start stop not available where the dealer said it's a bad connection/loose wire. I'm hoping maybe that is it again, will be taking it to the dealer sooner or later.
Sponsored

 
  • Like
Reactions: TJP

eric.frederich

Well-Known Member
First Name
Eric
Joined
Oct 16, 2017
Threads
15
Messages
104
Reaction score
36
Location
Charlotte, NC
Vehicle(s)
2018 JLURubicon
Please help. Our light has come on for the rear locker 3 times now in the past 2 months. Because they're unable to reproduce the problem at the dealership they can't point to a faulty part. Without a faulty part they can't order anything under warranty.

Those of you that have had parts replaced (sensors, actuators, axles, etc)... was it done under warranty? How bad was your problem... constant or intermittent?

I've shown them video of it driving on the highway in 2High and dashboard showing that the rear is locked. I've also opened a case with Jeep Customer Care.
After speaking w/ Customer Care and the dealership, it's clear that even if I were to bring it in during the intermittent problem for a technician to witness it... when the problem goes away after 30 minutes or an hour they wouldn't be able to pinpoint the faulty part.
Jeep Customer Care says they can't just start replacing parts until it works... That blows my mind. That's literally how service works for every industry. When my dryer stopped working I replaced the fuse. When the fuse blew again I started replacing parts until it worked again. I started with the thermostat, fortunately that fixed it... but had it not, I would have moved on to the heating element.
There are only so many things in the chain that can make that light appear on my dash. I'm not asking them to replace my air conditioner, or my power windows. Why can't they start replacing stuff until it works?

How did you call get Jeep to lift a finger for you?
Should I go to another dealership?

I'm currently with Stateline Jeep in Fort Mill, SC.

Thanks,
~Eric
 
  • Like
Reactions: TJP

No Spark V6

Well-Known Member
Joined
Aug 1, 2020
Threads
5
Messages
193
Reaction score
224
Location
Chicago NW burbs
Vehicle(s)
2021 Rubi 3.0 GCM
Clubs
 
That's literally how service works for every industry.
I'd have to disagree with you on this part. I dont think that's how it works(at least not in my industry) or how it should work. Definately don't want a doctor to take that approach on me. Diagnosing before throwing parts at it is a better solution.

That said, the axle locker has been a very common issue and I'm surprised it hasn't been solved yet. I would think they would have at the minimum, a procedure to test the sensor by now. You could always try to get them to pop the diff cover and check for oil in the sensor. Hopefully they're intelligent enough to know it shouldn't be there and then replace it under warranty.
 

TJP

Well-Known Member
Joined
Mar 30, 2020
Threads
6
Messages
184
Reaction score
159
Location
PA USA
Vehicle(s)
20 JLU Rubicon
Vehicle Showcase
1
Eric, One “fix” could be for you to install the zauto oem locker bypass. It removes the error, keeps lockers operational, but will cost you $170. I had to add one to my front at 6000 miles but havent had an issue since.

I know it sucks, but if that addresses it for you then so be it. Id go that way over an axle replacement (w a refurb). Heck I wouldnt even want the dealer replacing an axle.

Eventually the oem part will be sold separately (hopefully potted or redesigned).




Please help. Our light has come on for the rear locker 3 times now in the past 2 months. Because they're unable to reproduce the problem at the dealership they can't point to a faulty part. Without a faulty part they can't order anything under warranty.

Those of you that have had parts replaced (sensors, actuators, axles, etc)... was it done under warranty? How bad was your problem... constant or intermittent?

I've shown them video of it driving on the highway in 2High and dashboard showing that the rear is locked. I've also opened a case with Jeep Customer Care.
After speaking w/ Customer Care and the dealership, it's clear that even if I were to bring it in during the intermittent problem for a technician to witness it... when the problem goes away after 30 minutes or an hour they wouldn't be able to pinpoint the faulty part.
Jeep Customer Care says they can't just start replacing parts until it works... That blows my mind. That's literally how service works for every industry. When my dryer stopped working I replaced the fuse. When the fuse blew again I started replacing parts until it worked again. I started with the thermostat, fortunately that fixed it... but had it not, I would have moved on to the heating element.
There are only so many things in the chain that can make that light appear on my dash. I'm not asking them to replace my air conditioner, or my power windows. Why can't they start replacing stuff until it works?

How did you call get Jeep to lift a finger for you?
Should I go to another dealership?

I'm currently with Stateline Jeep in Fort Mill, SC.

Thanks,
~Eric
 

Mud2Sno

Well-Known Member
First Name
Mickey
Joined
Jan 4, 2018
Threads
6
Messages
177
Reaction score
288
Location
California
Vehicle(s)
2018 JLUR Rubicon
Mine was constant but I did film it when it happened and they did cover under warranty but took 3 month of them trying different parts, z-locker fix didnt work for me. ended up being harness but did get new axles front and rear and controller. I did the potting fix once I got my jeep back and have not had this happen again.
 
  • Like
Reactions: TJP

Sponsored

norm807

Active Member
First Name
Brent
Joined
Mar 26, 2018
Threads
0
Messages
42
Reaction score
41
Location
Iowa
Vehicle(s)
2018 JL Punk'n Rubi
I have this issue and just wanted to drop a comment in here for those looking for some warranty info I really couldn't find. I searched and couldn't find anyone that confirmed if this issue is covered under the power train warranty. I could only find people saying it was under warranty, but not which warranty. I was 2 weeks outside the 3yr warranty at only at 22k miles when it showed up. I was concerned if the power train warranty covered the issue as I was searching, I only found one reference and that person said the sensor wasn't covered. I just got my jeep back from the dealer after they diagnosed the issue and put a new axle on order (backorder until end of August) and covered under the Power Train warranty. I am going to order the z-locker cable for backup once the new axle is installed.
 
  • Like
Reactions: TJP

MojitoJLUR

Well-Known Member
Joined
Jan 11, 2018
Threads
21
Messages
1,454
Reaction score
1,721
Location
Detroit, MI
Vehicle(s)
2018 JLUR Mojito
I did basically the same. When I use my tazer to say rear lockers only, the issue is still there. So I'm hoping it's only the rear since there is no way to check the front only. I only bought one harness for now, put the harness on, and kept it at rear only, and still had the message.

I have had other electrical wiring issues where it threw codes, such as start stop not available where the dealer said it's a bad connection/loose wire. I'm hoping maybe that is it again, will be taking it to the dealer sooner or later.
Just a FYI in case anyone else runs across this....

I was about to take my jeep into the dealer because I thought the tazer harness didn't work for me. I put my tazer into rear only for lockers and still had the error so I was convinced it was the rear. Well, I thought for shits and giggles, I'd try to put it on the front before taking it in. It worked! So having the jeep think it only has a rear locker with the tazer does NOT remove the service 4wd message if it's the front still.
 

2019 JLUR

Well-Known Member
Joined
Sep 19, 2019
Threads
10
Messages
75
Reaction score
47
Location
Anoka, MN
Vehicle(s)
2019 JLUR
When using this harness do the lights down on the locker still light up when locker switch is turned on?
 

1996cc

Well-Known Member
Joined
Aug 19, 2019
Threads
20
Messages
780
Reaction score
986
Location
Oregon
Vehicle(s)
21 JLUR 392
When using this harness do the lights down on the locker still light up when locker switch is turned on?
Yes. Everything works like factory.
 

Jlmp

New Member
First Name
Chris
Joined
Nov 30, 2021
Threads
0
Messages
4
Reaction score
3
Location
Estados Unidos
Vehicle(s)
Jeep Wrangler jl
Thanks. I have the service lockers error on my dash. I'll order it tonight and report back.
In all of my test cases so far, just a single for the rear (where the circuit starts). Mine for example had full system failure. Lockers didn't engage front or rear. Im 100% functional now
ok mine started this weekend the front locker wouldn’t engage. When I activate the rear locker separately it does engage but when I try to do both it doesn’t engage. I already ordered the Z-locker. Where do guys think I should install it???? Front or rear dift???? Once rear locker is activated and when I try to activate the front, it feels it’s activated it (power steel it’s hard) but on the dashboard it only flashes.
 

Sponsored

TJP

Well-Known Member
Joined
Mar 30, 2020
Threads
6
Messages
184
Reaction score
159
Location
PA USA
Vehicle(s)
20 JLU Rubicon
Vehicle Showcase
1
ok mine started this weekend the front locker wouldn’t engage. When I activate the rear locker separately it does engage but when I try to do both it doesn’t engage. I already ordered the Z-locker. Where do guys think I should install it???? Front or rear dift???? Once rear locker is activated and when I try to activate the front, it feels it’s activated it (power steel it’s hard) but on the dashboard it only flashes.
Sounds like the front went bad.

thats what happened to me. If you have a taser, you can disable locker one by one and that will help you diagnose the issue. I posted how I used my taser to troubleshoot on here.
 

Jlmp

New Member
First Name
Chris
Joined
Nov 30, 2021
Threads
0
Messages
4
Reaction score
3
Location
Estados Unidos
Vehicle(s)
Jeep Wrangler jl
Sounds like the front went bad.

thats what happened to me. If you have a taser, you can disable locker one by one and that will help you diagnose the issue. I posted how I used my taser to troubleshoot on here.
I don’t have a taser I using super chip
 
  • Like
Reactions: TJP

Toxiclows

Well-Known Member
First Name
Christopher
Joined
Dec 6, 2019
Threads
7
Messages
111
Reaction score
32
Location
15748
Vehicle(s)
2020 Willy’s jl
Man this is nuts, you'd think at some point in the JL's lifespan they'll offer a way to fix this OEM without having the full axle swap. That's just unreal they aren't offering sensor/locker/gears as serviceable items by the end user or the dealer. Makes things extra terrible if the dealer were to blame it on a lift or larger tires.

Great that we've got a fix outside of the FCA nightmare on this issue. Luckily I haven't had issues and I use my lockers all the time, but good to know the fix is out there.
im not 100 percent on this, but
I am a jeep dealer Tech. my thoughts on this from the perspective of just the way they do things is that since the diffs are made across the street in Toledo at a plant owned by Dana, And said Dana corp. being the manufacturer of the entire axle, dana itself is going to want the whole units back for failure diagnosis. just my 2 cents. based on the exact same thing done by our transmission manufacturer +=+ZF=+
Sponsored

 
Status
Not open for further replies.
 



Top