Auto stop/start a dangerous nightmare!

[DBravo]

Your throttlebody is loosing position os my bet, and when that happens the system requires park and key off reset.

I just had a conversation with SteveOrlando about this. There is a thread about throttle bodies making noise. I rhink ot is more than that. i have tuned a large number of these trucks now and they all have varying degrees of weird throttlebody behavior. I started logging a bunch of parameters on my truck for this, and it is surprising how often ot looses position, especially if you let it do a start stop. Just having the engine on all the time. If you do a WOT to coast and back on the throttle, it gets really confused. And then the transmission holds the gear it is in until it all settles out. Uggh the 3.6L is not making me happy?

Agree - mine does the gear holding occasionally. The few times it has happened, I have dropped it into manual shift then back to auto to correct.

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[jsalbre]

It’s definitely a door pin. If you open a door during an ESS event it won’t restart.

 

[Kilroy1941]

I bought an auto stop start eliminate the first month getting my gladiator. I never turn that thing on

 

[ShadowsPapa]

I bought an auto stop start eliminate the first month getting my gladiator. I never turn that thing on

Wouldn't matter here - his problem is NOT ESS. His problem would still exist even if he disabled ESS. It's too bad it gets blamed for everything from teenage acne to the extinction of do-do bird and the death of Bob Saget.

 

[dcmdon]

Wouldn't matter here - his problem is NOT ESS. His problem would still exist even if he disabled ESS. It's too bad it gets blamed for everything from teenage acne to the extinction of do-do bird and the death of Bob Saget.

Its also too bad that the software designers didn't anticipate a highly likely failure.

 

[ShadowsPapa]

Its also too bad that the software designers didn't anticipate a highly likely failure.

That's nothing to do with his problem. ESS isn't the fault here and there's no "highly likely failure"
Everyone still seems hooked on the evil ESS - it's not what the problem is in this case, and ESS has no high failure rate. Batteries do........
Where do you get the software designers......... highly likely failure" stuff?
What failed here isn't ESS - and frankly, no one can really point to many, if any, ESS failures other than batteries and the IBS - and the IBS would be there anyway, ESS or not, due to how the system works the charging system to save fuel and load on the engine.
In other words, your statement doesn't even fit the topic at hand - which is not ESS in this case.

What should have been engineered differently is the door harness connectors.

 

[dcmdon]

I'm not talking about ESS at all. I agree with everything you wrote about it. Mine is left on despite the fact that I have a Tazer installed. I live about 60% of the time in a relatively urban area and it is quite effective with no problems so far. .

I'm talking about a bent pin in a door connector essentially disabling the entire vehicle. This seems to be a common theme in the way these trucks fail. Aux battery fails and even with a functional main battery the vehicle is bricked. (Later fixed with a software update. I believe this problem was only with the JLs actually since the update had been done before the Gladiator was released)

Its insane. I know that you also have an IT background. If I remember its mostly infrastructure, but I'm sure you have some application development experience. You write software anticipating common failures. Then you map logic around that failure in a way that creates the least inconvenience or decrease in safety.

Not exactly the same but in the same vein.
Last week I got a check engine light after I did a handbrake turn in the snow. I checked the code with the Tazer and it was an ABS sensor error. So I cleared it and it hasn't reappeared. Why would something like that not trigger an ABS light?

Also insane. If I've got a CEL I'm going to figure it out. If I've got an ABS light I'll drive it until its convenient. I drove for 25 years without ABS I can manage a couple of more days.

It just all seems like there is no concern for the vehicle fulfilling its most basic and important function, to get you home.

 

[TwelveGaugeSage]

If the passenger heated mirror isn't working, that's the plug I would check first. These posts make me really nervous about taking my doors off.

Add me to the few folks who like ESS. I don't find it intrusive, though it does have a bit of a learning curve. It yells at me sometimes when I try to launch too quickly after pushing the clutch.

 

[Deleted member 30519]

This is off topic but does anyone else get the auto stop start "need service" error light display on the dash every time at start up? I learned to live with it since it's less annoying then the auto stop start feature itself.

 

[ShadowsPapa]

Last week I got a check engine light after I did a handbrake turn in the snow. I checked the code with the Tazer and it was an ABS sensor error. So I cleared it and it hasn't reappeared. Why would something like that not trigger an ABS light?

Transient errors don't. Their error checking looks for something consistent, not a blip. Why did the misfires in our WK2 not trigger a light? Not consistent (although for a while it sure felt like it!) There's a threshold it's got to cross to avoid annoying lights for conditions that don't persist.
Each cycle only a couple of misfires were counted, felt like heck, but then it would sit and idle without missing a lick.
My guess on the ABS vs. engine - the ABS was a simple single code, transient, one time, it was logged but a light wasn't called for. The check engine thing is really a misnomer, IMO, too often it's not the engine at all. I wish those warranty dope that advertise on TV, and the manufacturers would stop calling everything "check engine". Most of the time it's nothing to do with the engine.
My question is why did you get a "check engine" light? I get not getting the ABS light, but the check engine?

This goes back to the beginning when OBD was just starting - took 3 attempts by a dealership shop to finally "catch it in the act" on our Cherokee 4.0. IMO in that one it should have triggered a light....... but then it was only at certain times and really trick to catch. What the shop had to do was actually hook up and monitor it while driving and someone watched the thing while another tried to force the error when driving - they caught it in the act. (how many shops will do that today? man, I miss that dealership)

For me that door connector is way overly complex and fragile. I get weatherproof connectors - they are everywhere, but these are just asking for trouble with the general population.

I did extremely minor C++ , one time and decided nope, not for me. I did mostly VB Script. I automated the heck out of logins, updates/upgrades, setting up images and so on. I mapped printers based on IP addresses, connected drives (or blocked drives) made sure the latest security software was there, I even freaked out a co-worker in IT one time by having her login flash the OS2 splash screen. From the other room I heard this "BILL!!! what did you do?" She was spooked until she saw familiar stuff on the screen.

it does have a bit of a learning curve. It yells at me sometimes when I try to launch too quickly after pushing the clutch.

A married guy would feel right at home with that............ LOL

 

[dcmdon]

You wrote:

My question is why did you get a "check engine" light? I get not getting the ABS light, but the check engine?

That was my thought. But when I got the CEL (not an ABS light) I scanned the truck and the only DTC there was was U0415-00, which is an ABS sensor problem.

When I cleared the code, the light went out.

Very strange. Does the truck have an ABS Light??

 

[NachoRuby]

You wrote:

My question is why did you get a "check engine" light? I get not getting the ABS light, but the check engine?

That was my thought. But when I got the CEL (not an ABS light) I scanned the truck and the only DTC there was was U0415-00, which is an ABS sensor problem.

When I cleared the code, the light went out.

Very strange. Does the truck have an ABS Light??

There is an abs light. It's below and between 4k and 5k on the tach. It should light up every time you turn on the jeep. As to why your situation didn't cause an abs light, no clue. But there is one.

 

[NachoRuby]

If the passenger heated mirror isn't working, that's the plug I would check first. These posts make me really nervous about taking my doors off.

Add me to the few folks who like ESS. I don't find it intrusive, though it does have a bit of a learning curve. It yells at me sometimes when I try to launch too quickly after pushing the clutch.

I'm going to say this and hopefully not regret it. I've taken my doors off dozens of times. Just be careful realigning the pins. And if it's hard to push, stop! Once they are ligned up, use the lever to lock in place (you'll see what I mean). If it's hard to close the lever, you're doing it wrong. Stop. Realign, start over. Try again. Never under any circumstances do you force it closed .

Also, since yours is a stick, you won't have any of these problems, because you don't have autopark. So the problems are less pronounced if you bend a pin.

 

[NachoRuby]

This is off topic but does anyone else get the auto stop start "need service" error light display on the dash every time at start up? I learned to live with it since it's less annoying then the auto stop start feature itself.

No. Likely to do with the regear or speedometer recalibration. I'd do the top gear relearn procedure again, if it really bugs you. Pull both batteries for like 5 minutes (or do a tazer hard reset), then hold 6th for 45 seconds at 45mph+. If it's not that, then you might have a weak secondary battery.

 

[ShadowsPapa]

Speaking of ABS - our weather is up and down, down and up. We had a snow last week, pretty much mostly melted away but tons of melting and refreeze have left icy spots in parking lots. Some of those spots fairly large. We went to Target this AM and I pulled toward an area away from other vehicles and the front half of that parking spot was ice - slick ice, the rest behind it clear. I came to the spot fairly quickly - no other traffic and no other cars. I hit the brakes to stop in that spot, not realizing at the time it was pure ice in the front half of the spot. The front wheels locked up and slid 3 or 4 feet while the rears kept turning. ABS never once kicked in.
I've had that happen multiple times - I can slide wheels with the brakes and never feel ABS trigger at all. If I had done with with my wife's Jeep or my Chevy when I had it, it would have sounded like the thing was falling apart and the brake pedal would have chattered. This, nothing - I'm free to either lock or spin the front or rear wheels.
Once in a while I drive it as if purposely trying to trigger ABS - nothing.
There are no codes, no lights, no alerts, it's just like a non-ABS vehicle much of the time.

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