Auto stop start (ESS) permanent disable / defeat by unplugging hood sensor

cobra

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Let me do some investigating and I will have an update soon.
Thanks



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nvabill

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Today I unplugged hood open sensor #2 on right side of engine bay. According to the wiring and software schematics it's only job is auto stop/start disable with hood open. I will get the auto start/stop warning dash symbol, but that start/stop feature was driving me crazy.
I drove the JL 68 miles today with zero issues.

Yes I am too forgetfull to turn it off at every start.
This will hold me over until I can figure out a better defeat technique for this very undesired feature.
Thanks for the info, I tried this today and works with no issues whatsoever. Remote start works as well as backup camera, only downside is dash light. I will decide if I make this permanent but it works for now and I will just plug back in whenever I take Jeep to dealer.

I am confused as you say you unplugged the sensor in the right side of engine bay. I unplugged the wire from the right switch looking towards the windshield, they are on the left side of the vehicle. Is this what you did, I have attached a photo?
IMG_5069.jpg
 

cobra

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Thanks for the info, I tried this today and works with no issues whatsoever. Remote start works as well as backup camera, only downside is dash light. I will decide if I make this permanent but it works for now and I will just plug back in whenever I take Jeep to dealer.

I am confused as you say you unplugged the sensor in the right side of engine bay. I unplugged the wire from the right switch looking towards the windshield, they are on the left side of the vehicle. Is this what you did, I have attached a photo?
IMG_5069.jpg
I unplugged the right switch as your sitting in the jeep which is what killed the back up camera. So i quest i unplugged the wrong one.
 
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jericbarg

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Thanks for the info, I tried this today and works with no issues whatsoever. Remote start works as well as backup camera, only downside is dash light. I will decide if I make this permanent but it works for now and I will just plug back in whenever I take Jeep to dealer.

I am confused as you say you unplugged the sensor in the right side of engine bay. I unplugged the wire from the right switch looking towards the windshield, they are on the left side of the vehicle. Is this what you did, I have attached a photo?
IMG_5069.jpg
Yes that is the correct switch. Looking at the windshield would be on the right, but it is considered the left or driver side. Sorry for the confusion but I'm glad you found it useful. You can also leave the sensor plugged in and just remove it from the bracket, this simulates hood open but it will also give you random warnings. Easier to just unplug it.
 

nvabill

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I unplugged the right switch as your sitting in the jeep which is what killed the back up camera. So i quest i unplugged the wrong one.
I did the same and my remote start didn't work so I did the other one and all worked ok.
 

nvabill

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Yes that is the correct switch. Looking at the windshield would be on the right, but it is considered the left or driver side. Sorry for the confusion but I'm glad you found it useful. You can also leave the sensor plugged in and just remove it from the bracket, this simulates hood open but it will also give you random warnings. Easier to just unplug it.
Yes, very useful fix and very easy, also can easily be plugged back in when I need something at the dealer done.
 

joem

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i read somewhere that if you plug in a trailer wiring light tester into the trailer wiring socket it will simulate a trailer hookup and disable the start stop feature-has anyone tried this?
 
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i read somewhere that if you plug in a trailer wiring light tester into the trailer wiring socket it will simulate a trailer hookup and disable the start stop feature-has anyone tried this?
I heard the same thing but haven’t tried it. I will soon though.
 

Kysport

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Several posters have said they will try it and report back, but I don’t think anyone has yet. I will test mine but I don’t expect it to be delivered for at least a month. Another post said it was confirmed to work in the Owners Manual but I have looked several times and can’t find it in writing.
 

mergedown

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Watching thread and waiting on a solution beyond unplugging the sensor. Fine solve for now, and I agree with $100 for $4 in parts is excessive.
 

The Great Grape Ape

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Nice to know the remote start isn’t defeated, but what about the Alarm?

It seems like the two sensors are old functions vs new functions.
Seemed odd at the time when they showed off the two seperate ones, but for ease it makes a bit of sense if rushing to launch vs trying to combine... though still odd. (although that oddity is nice if ESS is all it does).

The old plunger affected remote start, but the new plunger doesn’t, however as the hood alarm is also a new feature add, so would be nice to know which one it is tied to.

For those testing, can you give that a go?
 

TroyBoy

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So what warning do you get by unplugging the ess hood switch?
 

cobra

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So what warning do you get by unplugging the ess hood switch?
You get a message in the center of the dash that says it's not working that last's a few seconds. Also a small amber light in the upper right of the dash that stay's on all the time.
 

domleeds1919

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Nice write up on this feature!
 








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