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Old 06-12-2019, 10:28 AM
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Check TPM System..

Now what?! This Jeep is taking me to the edge! 2013 Sahara JKU with 35s. Been running around 27 psi, have a superchips with pressures adjusted down and they all are reading correctly on the evic. Driving home yesterday and DING, warning and flashing tire symbol for 60 seconds and then solid on. Disconnected battery for 30 yada yada. Threatened it with trading it in for a Toyota and that didn't scare it at all.

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Old 06-12-2019, 10:54 AM   #2
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Might have a sensor going bad, they have to be replaced every so often.

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Old 06-12-2019, 11:12 AM   #3
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The TPMS sensors do eventually go bad. Do you have the higher level system that tells you each tire pressure or the simpler one that just has the warning?
You can get a new sensor for around $40 a pop, if one is bad you may want to get the others as well.
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Old 06-12-2019, 12:48 PM
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Might have a sensor going bad, they have to be replaced every so often.
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The TPMS sensors do eventually go bad. Do you have the higher level system that tells you each tire pressure or the simpler one that just has the warning?
You can get a new sensor for around $40 a pop, if one is bad you may want to get the others as well.
Installed new sensors with wheels in August of 2017. I have the evic system that shows each tire and its pressure.. All are reading correctly (27/28)
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Old 06-12-2019, 01:16 PM   #5
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Installed new sensors with wheels in August of 2017. I have the evic system that shows each tire and its pressure.. All are reading correctly (27/28)
So, which one was not reading correctly when the light was on? Or was the light on but all were reading correctly?
You should not need to disconnect the battery for any of this.
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Old 06-12-2019, 02:49 PM
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Installed new sensors with wheels in August of 2017. I have the evic system that shows each tire and its pressure.. All are reading correctly (27/28)
So, which one was not reading correctly when the light was on? Or was the light on but all were reading correctly?
You should not need to disconnect the battery for any of this.
They're all reading correctly.

Read some other posts before bitching and a few people had suggested disconnecting the battery for 30 minutes and others said to disconnect and discharge (tap cables together)
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Old 06-12-2019, 03:28 PM   #7
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I had this same problem. EVIC reading correctly but still had the flashing light. Rotated tires yesterday and light is gone today.
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Old 06-12-2019, 07:30 PM
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As mysteriously as it cane.. It left silenty
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Old 06-13-2019, 06:14 AM   #9
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They're all reading correctly.

Read some other posts before bitching and a few people had suggested disconnecting the battery for 30 minutes and others said to disconnect and discharge (tap cables together)
The light should only come on if either one or more sensors are reading low, or the system detects a fault in the system. You could use a code scanner to see if there is a fault stored in the system from whatever it was. That might point at what triggered the light.
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Old 06-13-2019, 09:54 AM   #10
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The light should only come on if either one or more sensors are reading low, or the system detects a fault in the system. You could use a code scanner to see if there is a fault stored in the system from whatever it was. That might point at what triggered the light.
When my light came on there was no code set in the computer.
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Old 06-13-2019, 11:10 AM   #11
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When my light came on there was no code set in the computer.
Was the light on because of a low pressure or a problem with the system?
There may be a different code reader required to read TPMS codes. Or perhaps there is no code.
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Old 06-13-2019, 11:50 AM   #12
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Was the light on because of a low pressure or a problem with the system?
There may be a different code reader required to read TPMS codes. Or perhaps there is no code.
Maybe it does require a different code reader, my radio which can read codes and my TD2 could not read it. It can't be a pressure issue as I actually dropped the pressure when I rotated tires. The only thing I can really think of is there is a potential issue with one of the receivers for the sensor, lose wire, connection, something but I can't find a wire diagram of the system.
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Old 06-13-2019, 02:14 PM   #13
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Maybe it does require a different code reader, my radio which can read codes and my TD2 could not read it. It can't be a pressure issue as I actually dropped the pressure when I rotated tires. The only thing I can really think of is there is a potential issue with one of the receivers for the sensor, lose wire, connection, something but I can't find a wire diagram of the system.
I know that when you buy a code reader some of them say they can read TPMS codes and some say they can't.
I would think it was a brief issue with a receiver if all the tires read the right pressures. It could be the receiver or it could be the connection to the receiver. Or it could just be a fluke....
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Old 06-14-2019, 03:10 PM
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I have a reader.. No codes were thrown. All pressures were displaying spot on at the time of the warning. It can only be one thing. GREMILINS!
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Old 06-14-2019, 03:58 PM   #15
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Me, too.

My Ck TPM System light just went on also. After 6 years of no problems. Dealership says this is common with the bigger tires even though I've had them the entire time. Couldn't find any reason for the evic light to come on other than age of sensors ~ 6 years. I was told by dealership service that even with replacement sensors, there's a good chance it still may have problems. Is this true? I hate just leaving something not working in my Jeep, but I also don't want to have to constantly deal with this. It does seem it could just become a recurring problem.

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