2H light flickers, Serv 4WD warning…

[burnt clutch]

For the last couple of years, occasionally, I’d notice the 2H light in the cluster flicker, then eventually, “Serv 4WD, swaybar disconnect not available” come on.
Apparently, it’s most likely related to the transfer case position sensor and/or the harness.

I can’t seem to find a video about how to change this out. Any help?

My Jeep is a 2018 (JL) Rubicon, 6MT.
Thanks.

 

[Mike Pierson]

For the last couple of years, occasionally, I’d notice the 2H light in the cluster flicker, then eventually, “Serv 4WD, swaybar disconnect not available” come on.
Apparently, it’s most likely related to the transfer case position sensor and/or the harness.

I can’t seem to find a video about how to change this out. Any help?

My Jeep is a 2018 (JL) Rubicon, 6MT.
Thanks.

Yeah, metal debris gets in the locker position sensor and you have to replace them which are usually backordered. Just buy two of these, fix the one and keep the other in the Jeep for when the other one goes bad…

Z Locker OEM

Description Developed in a partnership with Americas Most Wanted 4X4! The locker sensor in Wrangler JL and Gladiator Rubicons have started to become problematic. When they fail, it usually starts out as a blinking locker indicator on the dash, which then ends up in a "service axle locker"...

www.zautomotive.com

 

[jeeeep]

Yeah, metal debris gets in the locker position sensor and you have to replace them which are usually backordered. Just buy two of these, fix the one and keep the other in the Jeep for when the other one goes bad…

Z Locker OEM

Description Developed in a partnership with Americas Most Wanted 4X4! The locker sensor in Wrangler JL and Gladiator Rubicons have started to become problematic. When they fail, it usually starts out as a blinking locker indicator on the dash, which then ends up in a "service axle locker"...

www.zautomotive.com

Also, you have to buy a set of 5 and figure out which one is the correct sensor by trying them one at a time until the warning message clears.

 

[Mike Pierson]

Also, you have to buy a set of 5 and figure out which one is the correct sensor by trying them one at a time until the warning message clears.

Forgot about that… ZA is the best way aside from getting tons. Haha

 

[burnt clutch]

Yeah, metal debris gets in the locker position sensor and you have to replace them which are usually backordered. Just buy two of these, fix the one and keep the other in the Jeep for when the other one goes bad…

Z Locker OEM

Description Developed in a partnership with Americas Most Wanted 4X4! The locker sensor in Wrangler JL and Gladiator Rubicons have started to become problematic. When they fail, it usually starts out as a blinking locker indicator on the dash, which then ends up in a "service axle locker"...

www.zautomotive.com

Thanks, Mike.
Everything I’ve read says it’s the transfer case. But you’re saying it’s the locker sensor? Sure seems like that’s a much easier fix, if that is the case. But I can’t make sense of what a locker sensor would have to do with transfer case issues?

 

[Mike Pierson]

Thanks, Mike.
Everything I’ve read says it’s the transfer case. But you’re saying it’s the locker sensor? Sure seems like that’s a much easier fix, if that is the case. But I can’t make sense of what a locker sensor would have to do with transfer case issues?

Yeah, the elocker position sensor. I haven’t heard of people having this issue with the transfer case but there’s a lot of internet out there and possible a few people had trouble with it. For thr other tens of thousands of people with the same issue, it was the sensors in the diff because they aren’t potted and metal fragments get in and short circuit the sensor. In the beginning, Jeep was replacing the entire axle. Then a couple of years ago they came out with a sensor kit. Check your wires for wiggle, pay someone to scan it. Up to you. Report back.

 

[burnt clutch]

Yeah, the elocker position sensor. I haven’t heard of people having this issue with the transfer case but there’s a lot of internet out there and possible a few people had trouble with it. For thr other tens of thousands of people with the same issue, it was the sensors in the diff because they aren’t potted and metal fragments get in and short circuit the sensor. In the beginning, Jeep was replacing the entire axle. Then a couple of years ago they came out with a sensor kit. Check your wires for wiggle, pay someone to scan it. Up to you. Report back.

Got it. Ok, thanks!

 

[jeeeep]

For the last couple of years, occasionally, I’d notice the 2H light in the cluster flicker, then eventually, “Serv 4WD, swaybar disconnect not available” come on.
Apparently, it’s most likely related to the transfer case position sensor and/or the harness.

I can’t seem to find a video about how to change this out. Any help?

My Jeep is a 2018 (JL) Rubicon, 6MT.
Thanks.

the transfer case switch is on top of the transfer case, had to replace it on my 2010 JK, not difficult to get to with crowfoot wrench.

The switch is only about $30, cheap option and may be worth a try before investing in the Z-automotive locker bypass; I had the rear axle locked message when the rear axle sensor went out, luckily, I already had the Z-sensor and was able to get on my way quickly.

 

[bobfriesenhahn]

Thanks, Mike.
Everything I’ve read says it’s the transfer case. But you’re saying it’s the locker sensor? Sure seems like that’s a much easier fix, if that is the case. But I can’t make sense of what a locker sensor would have to do with transfer case issues?

At least one person reported an issue which seemed like the transfer case position sensor.