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Max Online: 36273 @ 01/23/13 02:34 PM
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#12329968 - 07/08/17 04:00 PM 2012 ram 2500 check engine light.
Pinkus Online   content
Angler

Registered: 08/11/13
Posts: 499
I have a 2012 ram 2500 6.7 Cummins and my check engine light came on, did the key thing to see the codes but there isn't any codes coming up.. is there a way for me to reset the check engine light myself without going to dealer or autozone.. would like to try that and see if it stays off since there isn't any codes before I go to dealer and have em look at it.. Being Texas in July I would really like the remote start to work but it won't with check engine light on.. lol.. appreciate any info.. thanks

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#12330068 - 07/08/17 05:18 PM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
Samsonsworld Online   content
TFF Team Angler

Registered: 12/12/08
Posts: 3137
Loc: Oeste Del Tejas
Sometimes my Grand Cherokee's goes off by itself, sometimes it goes to the shop. Disconnecting the battery never worked. Welcome to fca.

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#12330723 - 07/09/17 07:58 AM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
northtexascrappiehunter Offline
TFF Celebrity

Registered: 02/21/09
Posts: 5371
Loc: Corinth Texas
unhook the batteries for 5 minutes, that will reset the computer and the light.
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#12330844 - 07/09/17 09:55 AM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
Pinkus Online   content
Angler

Registered: 08/11/13
Posts: 499
Will try that.. really appreciate it..

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#12331743 - 07/10/17 01:11 AM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
scruboak Offline
Extreme Angler

Registered: 03/11/03
Posts: 1099
Loc: Cisco,tx
probably emission sensors we replaced tons of them that and previous years.

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#12338667 - 07/13/17 10:20 PM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
Ol Man River Online   content
Extreme Angler

Registered: 06/16/11
Posts: 1412
Loc: SE Texas
If you still have the check engine light, make sure gas cap has been secured well. It will clear after a few miles of driving and reset. Just an easy thing to do just in case.

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#12385035 - 08/13/17 09:53 PM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
Pinkus Online   content
Angler

Registered: 08/11/13
Posts: 499
Update... the light just went off on its on.. I only drive it on weekends so just going to have the stealership check it out when I go get oil and fuel filters change in the next week or 2.. hopefully it will come back on or probaly gonna pay the diagnose fee for em to tell they couldn't find anything lol..
Thanks for responses

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#12390352 - 08/17/17 08:37 PM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
scruboak Offline
Extreme Angler

Registered: 03/11/03
Posts: 1099
Loc: Cisco,tx
Almost bet it is going to be o2 sensors.

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#12425659 - 09/13/17 07:32 PM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
KingwoodCat Offline
TFF Guru

Registered: 10/30/04
Posts: 37966
Loc: Broaddus TX
Mileage? My 08 did that when the turbo was crudded up. But that was at 96K miles.
_________________________
"Any man who thinks he can be happy and prosperous by letting the government take care of him had better take a look at the American Indian".

Henry Ford

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#12426093 - 09/14/17 07:34 AM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
Allison1 Online   sleepy
TFF Guru

Registered: 12/14/03
Posts: 17949
Loc: Grand Prairie, Tx
Use a code reader to see if there are any codes. Some code don't come on when you do the key thing, at least on my truck.

Luckily I have not had a code come up in years on my old 2000.

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#12426140 - 09/14/17 08:21 AM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
redchevy Offline
TFF Celebrity

Registered: 01/25/05
Posts: 6864
Loc: texas
What is this key thing?

I thought you needed a reader of some kind with the OBDII? If the light goes away it is a more trivial problem or the condition isn't persisting that caused the light. If it is something worse it will save the code and it wont go away until cleared. Disconnecting the battery should clear it but you may have to wait a few minutes for it to clear, not just disconnect and hook back up.

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#12431400 - 09/18/17 11:54 AM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
LinkLowrance Offline
Angler

Registered: 07/06/15
Posts: 417
Loc: On the Wheel
The "key thing" he's referring to is cycling the key on/off 3 times quick. On the last "on" cycle, a code will show up on the odometer (example: p0341). After that, you can look the code up on the web and get an idea of what you're dealing with. This works on most Chrysler/Dodge vehicles, but not all. Normally a hard code will be stored.

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#12431559 - 09/18/17 01:23 PM Re: 2012 ram 2500 check engine light. [Re: Pinkus]
redchevy Offline
TFF Celebrity

Registered: 01/25/05
Posts: 6864
Loc: texas
Thank you, was not aware you could do that without a obdII reader.

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