4xe Check Engine Light Issue (CEL)

[OINC]

I don't think that range will be there in 3 years unless it's a BEV. There is crazy battery tech on the horizon.

I just can't see a fully electric wrangler having good range anytime soon. Other trucks are now doing it but they aren't held to maintaining the offroad capabilities.

Agreed. Electric range for the 4xe in three years may be 40-ish if we’re lucky. I doubt we’ll see a BEV JL; I personally don’t expect a BEV Wrangler until the next style of Wrangler in the late 2020s. By then we should have better battery chemistry with much higher energy density.

At the 4xe’s current 68kWh/100mi, you’d need a 250kWh battery pack to get about 370mi (and let’s ignore the reserves built into most battery packs). At Tesla’s current max density of 160Wh/kg, that’s 1572kg, or nearly 3500lb JUST for the batteries! And of course that much weight for batteries would substantially increase the energy required, so…

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[Skippy477]

Unfortunately, I have joined this club. 6 weeks in and the CEL came on today at just over 1400 miles. Tried to make service appointment but so far have not heard back from the dealer. Checked the gas cap but no change. I had already read about the loose fuses issues weeks ago and checked them then (indeed several were not seated properly). Tried and OBD2 scan and got code P04EE so far I cannot find any info on that particular code. Hopefully the dealer will call back tomorrow so I can get it looked at. Everything seems to be working just fine and there were no differences in how I charged it prior to the CEL coming in so I have no idea what’s up with it. As others have said, even with everything apparently working okay, it’s frustrating to have to deal with a CEL on an expensive brand new vehicle.

So I finally have an appointment tomorrow to get my CEL looked at and after the light being on constantly for 17 days, it’s not on today. Do I still get it looked at? The last thing I want to do is have the dealer tearing apart my car and “fixing” things when they aren’t even sure what’s wrong with it, on the other hand, it was on for over 2 weeks. Clearly that’s something more than just a loose gas cap. What to do?

 

[anrsteve]

Ugh. 300 miles in and there is the CEL. I checked the fuses and the gas cap, all seem fine. I've only ever used the OEM Jeep Level 1 charger, and thus far, have had no issues charging. I had about 40% charge when this happened. Light came on for the first time right when I started it up. Reading all these threads, I'm a bit worried that the dealer won't have any idea what to do. @JeepCares what do you recommend? I really can't afford to leave my new car at the dealership for days while they try to guess what's wrong. My assumption is, they haven't read any of these forums and don't have a grasp of the issue :-(

Are we pretty sure the car is still safe to drive?

 

[michail]

The code may still be in the system. Those odd cels seem common on the gas/diesel Wranglers too.

Part of it is I think the control systems are way too cautious and agressive on this platform. I thought the Germans were bad!

 

[JeepCares]

Add me to the list of check engine lights. Everything has been great until this morning when I got to Work and plugged in the Jeep level 1 evse. The Jeep would start charging and then 15 seconds later it would fault out. I unplugged it and tried again with the same results. I waited about 20 minutes then tried one more time, this time everything worked fine and it started charging. At the end of my work day I went out, unplugged the cord and was greeted with the check engine light. I drove to the dealership and they ran the codes. It came back with P0D27 Batter charger 1 input voltage too low. They reset the codes and we will see if it happens again. I have used this outlet at work for the past 2.5 years to charge my Chevy Volt so I’m pretty sure the outlet is fine. I used the Jeep level 1 evse yesterday on this same outlet with no problems. I have charged overnight at home with my level 2 evse with no problems. I picked up the Jeep less than a week ago 1500 miles away and drove it home with zero issues. Hoping for no further problems ?

Mine has been in service since the beginning of the month (2nd time) for a P0C74 code (motor electronics coolant pump "B" control performance). Much longer the dealership will have my new jl longer than me. 1700 miles. Sold my 2020 Sahara with no issues for the Rubi 4xe. I was loving it till this started. I hope it's really fixed whenever I get it back this time.

Ugh. 300 miles in and there is the CEL. I checked the fuses and the gas cap, all seem fine. I've only ever used the OEM Jeep Level 1 charger, and thus far, have had no issues charging. I had about 40% charge when this happened. Light came on for the first time right when I started it up. Reading all these threads, I'm a bit worried that the dealer won't have any idea what to do. @JeepCares what do you recommend? I really can't afford to leave my new car at the dealership for days while they try to guess what's wrong. My assumption is, they haven't read any of these forums and don't have a grasp of the issue :-(

Are we pretty sure the car is still safe to drive?

Hey, amprice4, timuh60 and anrsteve.

I would be happy to assist each of you while your Jeep is with the dealer. Please seprately send me a private message with more details to get started.


Kate
Jeep Cares

 

[Bart01]

I am getting the charging fault issue as well, but unplug and replug makes the issue go away. Now that I know the CEL code is related to that fault, I’ll just keep using it and wait on a fix. The dealer certainly won’t know anything or be able to fix anything at this point, so no since in wasting my time by going there again.

Ugh. 300 miles in and there is the CEL. I checked the fuses and the gas cap, all seem fine. I've only ever used the OEM Jeep Level 1 charger, and thus far, have had no issues charging. I had about 40% charge when this happened. Light came on for the first time right when I started it up. Reading all these threads, I'm a bit worried that the dealer won't have any idea what to do. @JeepCares what do you recommend? I really can't afford to leave my new car at the dealership for days while they try to guess what's wrong. My assumption is, they haven't read any of these forums and don't have a grasp of the issue :-(

Are we pretty sure the car is still safe to drive?

Barely 250 miles on my Sahara 4xe gas cap light came on multiple

 

[Bart01]

Barely 250 miles on my Sahara 4xe gas cap light came on multiple times. I pulled over, removed & reinserted the gas cap ….which turned off the dashboard gas cap light.

Now the CEL came on …reseated the gas cap (there is a warning on the gas cap that if it’s not seated correctly it will trigger a CEL). The car is running fine ….I was afraid to drive it hybrid so I only drove in Electric.

It’s my first jeep since my 1948 Willy’s I drove in high school …other than not having rear side impact bags I’m having a blast driving. Hopefully jeep care will reach out to me to sort this out.

 

[arelem]

Add me to the list @JeepCares

Picked up the JLUR 4xe yesterday, took it out to get dinner and the CEL comes on during the drive. Almost all driving has been in hybrid/electric mode. Checked the gas cap, seated all the fuses, and still have a CEL. When I drive it, the CEL will flash which I understand is not good.

Taking it in to the dealer on Monday morning for diagnostics. Also calling my salesman today to tell him what is happening.

I understand new technology has bugs, but I didn't want to find out it was my 4xe with the bug.

 

[Gazelle]

I've joined the CEL club, unfortunately, with ~2500 miles. I have the electric wrench icon and a "Service Hybrid Electric Vehicle System" warning message. My local dealership service dept does not answer the phone, but I can make an appointment online...for July 27. Going to a dealership farther away, I will get it looked at later this week. I expected this to happen, but it is quite inconvenient.

 

[FirstF80InSpace]

I've joined the CEL club, unfortunately, with ~2500 miles. I have the electric wrench icon and a "Service Hybrid Electric Vehicle System" warning message. My local dealership service dept does not answer the phone, but I can make an appointment online...for July 27. Going to a dealership farther away, I will get it looked at later this week. I expected this to happen, but it is quite inconvenient.

Check the battery coolant level. Could be running low.

 

[JeepCares]

Barely 250 miles on my Sahara 4xe gas cap light came on multiple

Add me to the list @JeepCares

Picked up the JLUR 4xe yesterday, took it out to get dinner and the CEL comes on during the drive. Almost all driving has been in hybrid/electric mode. Checked the gas cap, seated all the fuses, and still have a CEL. When I drive it, the CEL will flash which I understand is not good.

Taking it in to the dealer on Monday morning for diagnostics. Also calling my salesman today to tell him what is happening.

I understand new technology has bugs, but I didn't want to find out it was my 4xe with the bug.

Thanks for tagging our team here!

Please send me a private message separately and I can dig into both of your concerns.

Thanks!
Kate
Jeep Cares

 

[Gazelle]

Check the battery coolant level. Could be running low.

Thanks for the suggestion. The battery reservoir (and BSG reservoir) look to be right at their max. level.

We've been having some hot weather up here when this occurred; much hotter than normal. The first time I saw the warning light, I was about 10miles up a steep, forest road with 4 passengers and all our camping gear. The second time, I was alone, but it was about 105F driving on hot asphalt at the hottest part of the day. I wonder if the battery just got too hot? It will be interesting to see if the dealership can pull any stored codes.

 

[FirstF80InSpace]

Thanks for the suggestion. The battery reservoir (and BSG reservoir) look to be right at their max. level.

We've been having some hot weather up here when this occurred; much hotter than normal. The first time I saw the warning light, I was about 10miles up a steep, forest road with 4 passengers and all our camping gear. The second time, I was alone, but it was about 105F driving on hot asphalt at the hottest part of the day. I wonder if the battery just got too hot? It will be interesting to see if the dealership can pull any stored codes.

Please keep us updated!

 

[CsD]

I've joined the CEL club, unfortunately, with ~2500 miles. I have the electric wrench icon and a "Service Hybrid Electric Vehicle System" warning message. My local dealership service dept does not answer the phone, but I can make an appointment online...for July 27. Going to a dealership farther away, I will get it looked at later this week. I expected this to happen, but it is quite inconvenient.

i had the same error message on mine two weeks ago. Brought it in to have it looked at. Turns out, I had a bent pin in the wire harness on the driver side door from taking and putting the doors on. Who knew a small little bent pin could cause such havoc. Dealership straightened it up and it was good as new. Hopefully yours is as simple. Good luck

 

[Gazelle]

i had the same error message on mine two weeks ago. Brought it in to have it looked at. Turns out, I had a bent pin in the wire harness on the driver side door from taking and putting the doors on. Who knew a small little bent pin could cause such havoc. Dealership straightened it up and it was good as new. Hopefully yours is as simple. Good luck

Wow! I'm not sure how a bent door connector pin could cause a "Check Hybrid System" error, but I've also had some intermittent, auto-park issues which could be related. I've never had the doors off, but did get a chance to flex a bit before seeing the errors.

I hope the fix is as easy as yours. Thanks for the info.

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