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Old 01-08-2013, 07:58 AM   #1
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Electric bolt symbol in dash and check engine?

I get this red electric bolt in dash and a check engine sign. I remember leaving the battery running last night without the engine running so the alternator was not running (stupid me). My jeep will not start. Is my battery dead and can this be fixed with a simple recharge or is it that maybe a cable came loose and needs to be re-plugged?
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Old 01-08-2013, 08:26 AM   #2
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Sounds like low voltage, try to jump it and see. Still may need new battery if it doesn't hold it.

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Old 01-08-2013, 10:00 AM   #3
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My '10 is stick, and I just let it roll down the driveway and pop the clutch to start it on the occasions where I leave the key on all night. I find it refreshing in this day and age you can still do that. Do the pentastar Jeeps allow starting like that?
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Old 01-08-2013, 11:34 AM   #4
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Does it look something like this ---> )S( where the "S" is the lightening bolt?
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Old 01-08-2013, 12:15 PM   #5
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It sounds like you ran the battery down. What did you leave on? A new battery usually can recover from a drain, but I would have it charged if you don't have a charger yourself. It will take your alternator a long time to bring it up, if it can at all.
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Old 01-08-2013, 12:34 PM   #6
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It sounds like you ran the battery down. What did you leave on? A new battery usually can recover from a drain, but I would have it charged if you don't have a charger yourself. It will take your alternator a long time to bring it up, if it can at all.
An alternator will charge one way faster then most chargers will. Just go for a 20 min drive.
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Old 01-08-2013, 12:50 PM   #7
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I placed it on the charger hopefully that'll do. And I left the radio on that's about it.
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Old 01-08-2013, 12:51 PM   #8
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Does it look something like this ---> )S( where the "S" is the lightening bolt?
Yes that is exactly what it looks like. Low voltage right?
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Old 01-08-2013, 01:14 PM   #9
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Yes that is exactly what it looks like. Low voltage right?
According to the official 2012 Wrangler app (that our wonderful sales-gal had us download at purchase time ) the red parentheses and lightning bolt symbol is the ETC (Electronic Throttle Control Warning Light).

It says (to paraphrase):

" this light monitors the ETC system. The light should come on as a bulb check when the ignition switch is first turned ON and remain on momentarily when the engine is started. If it does not come on have the system checked by an authorized dealer.

What does it mean? This light indicates a problem with Electronic Throttle Control (ETC) system.

How is my vehicle affected? If the light is flashing when the engine is running, immediate service is required and you may experience reduced performance, an elevated/rough idle or engine stall and your vehicle may require towing.

What should I do? Cycle the ignition key when the vehicle has completely stopped and the shift lever is placed in the PARK position. The light should turn off. If the light remains lit with the engine running, your vehicle will usually be drivable, however, see an authorized dealer for service as soon as possible."



And that's all the Wrangler app says. Try consulting your manual first to verify this symbol and the information I posted above. Beyond cycling the key I don't know how else to help.

Oh, I forgot to ask if this was a '12 or newer.

I hope this helps a little.
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Old 01-08-2013, 01:39 PM   #10
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I placed it on the charger hopefully that'll do. And I left the radio on that's about it.
I'm not sure I understand. Your radio will play all night without the engine running? Did you change that setting? Typically, most vehicles have a timer that auto-shuts off the radio at a certain time. So, unless you manually changed your Jeep to ignore that, then I'm wondering if something else is wrong that is draining your battery.
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Old 01-08-2013, 01:44 PM   #11
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Old 01-08-2013, 01:46 PM   #12
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I'm not sure I understand. Your radio will play all night without the engine running? Did you change that setting? Typically, most vehicles have a timer that auto-shuts off the radio at a certain time. So, unless you manually changed your Jeep to ignore that, then I'm wondering if something else is wrong that is draining your battery.
No I left the battery running without the engine running therefore the alternator is not running and the battery was the only power source and it drained it.
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Old 01-08-2013, 01:51 PM   #13
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No I left the battery running without the engine running therefore the alternator is not running and the battery was the only power source and it drained it.
I understand that.. How did you leave the battery running without the engine running? You said you left the radio on all night...

But, the radio will not stay on all night unless you left your keys in the ignition turned to that position or you manually changed the option for how long the radio stays on after you turn off the car. And even in the first case, I believe the radio will still turn off automatically after a certain length of time.

I don't think a dead battery is your problem, or is the main problem. I think it is a symptom of a problem. I also don't think that light (ETC = Electronic Throttle Control) is for low voltage and just a low/dead battery indicator.
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Old 01-08-2013, 07:16 PM   #14
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Just so we are all on the same page is this the dash warning light that you saw?

If so, according to my 2012 owner's manual (pg. 8) and my Chrysler Jeep Wrangler app that is the ETC.

Page 86 of the owners manual describes what to do if this light is on.

Hope this helps a little more.
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Old 09-17-2015, 10:06 AM   #15
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I got this last night, it did not blink, turned engine off and it disappeared. Did not notice any performance issues however the CEL is still on. Did anyone have any follw-up to this issue?

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Old 04-02-2016, 03:27 AM   #16
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I just had this problem today. My battery had died last night, so I bought and replaced it with a new one this morning. While driving back to work from my lunch, this symbol came up as well as the check engine light. As soon as that happened, the jeep slowed and lost power. As if it was going to shut off. I pulled over and it had a really nasty idle. Very shaky! I have no idea what it could be.

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Old 04-02-2016, 07:49 AM   #17
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I just had this problem today. My battery had died last night, so I bought and replaced it with a new one this morning. While driving back to work from my lunch, this symbol came up as well as the check engine light. As soon as that happened, the jeep slowed and lost power. As if it was going to shut off. I pulled over and it had a really nasty idle. Very shaky! I have no idea what it could be.

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Don't forget to mention the other things you did to it recently that you listed in your other thread about this:

Could it be that I just got a cold air intake? The new gear diff? Or the battery? Alternator?

My guess is the alternator going bad with it being a random occurrence, especially if it is the original one from an '07 Wrangler.
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Old 04-02-2016, 08:11 AM   #18
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Don't forget to mention the other things you did to it recently that you listed in your other thread about this:

[I]Could it be that I just got a cold air intake? The new gear diff? Or the battery? Alternator?
Good call!
My buddy is 30+ veteran, ASE Cert, etc etc. and he always tells his guys "look first where the human was last". Doesn't mean the OP broke something, but a good start is to look at recent changes made.

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