Dead Gladiator

[j.o.y.ride]

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[j.o.y.ride]

Nada. Absolutely nothing different.

Tried the fuses and they all had some play but no luck.

I will get it towed on Monday. I'm not going to be here at all tomorrow.

Stay tuned. The way it's acting I would be inclined to say a brake switch or the actual start switch except for the fact the remote will no longer unlock or lock the truck

So it seems like some sort of PCM issue.

@JeepCares

 

[jebiruph]

I can't tell if you've completely removed battery power yet or not. If not, disconnect the negative battery cables from the main battery and from each other, this disconnects both batteries. Leave it like that for several minutes before reconnecting.

 

[j.o.y.ride]

I can't tell if you've completely removed battery power yet or not. If not, disconnect the negative battery cables from the main battery and from each other, this disconnects both batteries. Leave it like that for several minutes before reconnecting.

Im going to have the dealer sort it out at this point. Even if removal of both resets it, clearly something is wrong and they need to sort it.

 

[Mr._Bill]

That will involve taking the fender liner out correct?

The negative cable for the secondary battery connects to the negative terminal of the main battery, which then connects to the frame. This keeps the system powered up, even if the main battery is removed. To get a system reboot, the secondary negative cable needs disconnected from the main negative terminal. No need to get under the fender or remove the ESS battery.

 

[DeezJT]

Keep us posted @j.o.y.ride

 

[wchevron]

I guess your Gladiator didn't read the Consumer Reports Most Reliable Car thread.

 

[j.o.y.ride]

The negative cable for the secondary battery connects to the negative terminal of the main battery, which then connects to the frame. This keeps the system powered up, even if the main battery is removed. To get a system reboot, the secondary negative cable needs disconnected from the main negative terminal. No need to get under the fender or remove the ESS battery.

Got it, so even fully disconnecting the negative terminal itself wont reboot because the ground is still feeding the aux battery through the main negative block until the aux is just disconnected altogether.

Will see if I have time before leaving this AM

 

[Dew.J]

Do you have a multi-meter? Check the voltage of the battery set. If the battery truly died, not just low, charging it won’t do anything.

 

[j.o.y.ride]

If you are going to do, do this:
https://www.jeepgladiatorforum.com/forum/threads/dead-gladiator.40812/post-659473

Will leave like this and go walk the dog

 

[j.o.y.ride]

Do you have a multi-meter? Check the voltage of the battery set. If the battery truly died, not just low, charging it won’t do anything.

I don't. What runs off the aux battery anyways? Or is it just truly a secondary backup one? I know it's needed for start/stop but anything else?

 

[Dew.J]

Looks like the primary battery feeds the starter but the six battery powers the relays for it

https://www.jlwranglerforums.com/JL-Wiring-Diagrams/STARTING_CHARGING-SYSTEM---2.0L_3.6L---ESS.pdf

 

[Lateralus]

There's an easier way to reset the ECM without unplugging the batteries.

-open hood and leave open for at least 20 minutes

-put key fob in pocket so it "learns" your body temperature

-go out under hood and pull key for from pocket

- place hand with keyfob over battery at a distance of 6-7" inches above battery.

-now follow this part exactly and carefully: carefully make circle motions(clockwise) with keyfob hand 6-7"s above battery while saying the following, "jeep primary user request for system reset".

If you did everything right you will hear a female uconnect voice say, "user request granted, system restarting captain".

If you did something wrong like hold your hand too low or high above battery or wave it in a counter clockwise motion, the uconnect voice will say, "system sequence unauthorized, going into safe mode"

At that point your jeep gladiator will send a distress signal to Toledo and the doors and tailgate will lock. All 4 windows will open approximately 1/4" and the stereo will come on and play nickelback in a loop until the vehicle is reset by an authorized user. You will probably have to call the dealer to get them out because they are the only ones with the reset codes.

Be careful and take your time. This is way easier than disconnecting both batteries.

 

[j.o.y.ride]

Reconnected the negative terminals, tried the remote and it works! Got in the truck and it starts!

But... why? What's that tell us about why it happened?

 

[j.o.y.ride]

@j.o.y.ride

When you have time, go to https://www.jlwranglerforums.com and search using the word ESS and AUX. There is a wealth of info there that will help get you up to speed on this subject.

I will poke through later. More pressing question is why it forgot the remotes and if I can reliably drive it today

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