# 2011 Jeep Wrangler Unlimited - engine light stays on?

**URL:** <https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354>\
**Category:** Maintenance/Repairs\
**Tags:** jeep, wranglerunlimited\
**Created:** [June 25, 2020, 11:23pm UTC](https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354 "2020-06-25T23:23:49Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![Art48](https://avatars.discourse-cdn.com/v4/letter/a/ad7895/32.png) [@Art48](https://community.cartalk.com/u/Art48)\
**Post date:** [June 25, 2020, 11:23pm UTC](https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354/1 "2020-06-25T23:23:50Z")

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Engine light on system warning “requires oil change”  
Changed oil reset system service engine light stays on  
Syestem says all systems goog  
???

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [June 27, 2020, 12:12pm UTC](https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354/2 "2020-06-27T12:12:37Z")

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> [@Art48](#):
>
> engine light stays on

Do you mean the “Check Engine Light” ? The little picture of an engine?

That light means there is a problem and error codes are stored. They can be read, for free, from most auto parts stores in the US. If you have that done, just be sure to write down the actual codes in the format P1234. Post them back here and we’ll try and help.

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**Author:** ![Art48](https://avatars.discourse-cdn.com/v4/letter/a/ad7895/32.png) [@Art48](https://community.cartalk.com/u/Art48)\
**Post date:** [June 27, 2020, 2:48pm UTC](https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354/3 "2020-06-27T14:48:37Z")

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Got it. Had oil light on changed oil and reset System but check engine light did not  
Go out. Solution was to disconnect positive battery cable for sixty seconds to reset

Thanks

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [June 27, 2020, 2:59pm UTC](https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354/4 "2020-06-27T14:59:01Z")

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If the problem has not been fixed… expect that light to come back on.

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**Author:** ![Art48](https://avatars.discourse-cdn.com/v4/letter/a/ad7895/32.png) [@Art48](https://community.cartalk.com/u/Art48)\
**Post date:** [June 27, 2020, 3:15pm UTC](https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354/5 "2020-06-27T15:15:20Z")

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On-board system was telling me to change oil.

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**Author:** ![SteveCBT](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/stevecbt/32/3192_2.png) [@SteveCBT](https://community.cartalk.com/u/SteveCBT)\
**Post date:** [June 27, 2020, 4:32pm UTC](https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354/6 "2020-06-27T16:32:24Z")

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Disconnecting the battery to clear a check engine light (CEL) does not fix anything. It simply restarts the system and as it goes out and finds the sensor giving the CEL the light will come on again.

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [June 27, 2020, 5:18pm UTC](https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354/7 "2020-06-27T17:18:44Z")

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> [@Art48](#):
>
> On-board system was telling me to change oil.

Yeah, you said that but the CEL is another thing entirely.

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**Author:** ![Art48](https://avatars.discourse-cdn.com/v4/letter/a/ad7895/32.png) [@Art48](https://community.cartalk.com/u/Art48)\
**Post date:** [June 27, 2020, 5:28pm UTC](https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354/8 "2020-06-27T17:28:39Z")

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I know that. The garage changed the oil and set the oil light. The system was reset  
the on-board system reported no problems . The reset did not turn the engine light off.  
I went through the reset procedures, and the on-board computer did not reset the  
Lite.  
Found a fix to reset light.

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [June 27, 2020, 5:30pm UTC](https://community.cartalk.com/t/2011-jeep-wrangler-unlimited-engine-light-stays-on/166354/9 "2020-06-27T17:30:36Z")

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So you repeated everything you posted previously and my answer is the same…

> [@Mustangman](#):
>
> If the problem has not been fixed… expect that light to come back on.
