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10:30 am
Club Member
July 14, 2016
Offline
As some of you know, I bought a 2024 JLU with under 11,000 miles on it. When I bought it, the driver’s side rear TPMS doesn’t display the tire pressure. At the recommendation of the Jeep dealer in Auburn, I took it to Nor Cal Motor Company in Auburn because they will work on beadlock wheels. After spending $320 for them to work on it, including installing a pressure sensor in the spare tire, they were unable to fix the problem. I took it there twice and both times they reprogramed it and got a reading of 19psi when the tire was actually at 37. In both cases, while driving home the sensor when out and there is no psi reading. I took my Jeep back to the dealer hoping that it might be a warranty issue. The Jeep dealer charged me $237 to work on it with the same result.
Yesterday I decided to swap the rear driver’s side tire/wheel with the driver’s side front. I drove the Jeep to see if the system would relearn the sensors. The rear still would not register any pressure while the front was fine. As a result, I can rule out a bad sensor. In addition, a local tire shop and the two shops that worked on my Jeep were all able to read the correct pressure with a handheld scanner. Now, here is where it gets interesting.
- I let air out of the front driver’s side tire with the Jeep running and the front passenger side tire pressure indicator when down.
- I let air out of the front passenger side tire and there was no change in the TPMS readings.
- I let air out of the rear passenger side tire and the driver’s side front tire pressure indicator went down.
- I let air out of the driver’s side rear tire and the passenger side rear tire pressure indicator went down.
I have searched online and I see that other people have had similar issues but like me, couldn’t find a resolution. I have KMC beadlocks and 37” Nitto Grappler tires. Some, including the Jeep dealer, speculate that the problem is aftermarket tires and wheels. Some speculated that the larger wheels may throw the sensor receiver off, causing it to read the wrong tire. If that were the case, then wouldn’t this happen to everyone with similar mods? A local tire shop that I use and WFO’s uses said that the aftermarket tire pressure sensors might be the problem. I’m reluctant to spend the better part of $500 having them put in OEM sensors only to have the same problem. In fact, on one forum a guy did that and it did not resolve the problem. Any thoughts and suggestions?
Jeff and Kathy Root
3:52 pm
Club President
April 2, 2003
Offline
wow
I can only say that I have factory wheels and 37" tires and mine work fine. Maybe it is wheels? Not sure about aftermarket. I have factory sensors.
Kathleen and Brad
4:58 pm
Club Member
March 9, 2023
Offline
Wow is right,
I have had no problems with the sensors on either of my Jeeps....Red Jeep 37s, not bead locked on my second set of tires - Green Jeep 38s bead locked - both with Nitto Grapplers now and have had the tires rotated many times. Scott at Cloakworks did all my modifications...he might be a good for an opioion.
9:44 am
Club Member
July 14, 2016
Offline
Received this as an attachment from the Jeep dealer after I sent them an email about my findings:
Case Number: S2422000001 Rev. D
Release Date: July 2025
Symptom/Vehicle Issue: Tire Pressure Monitor (TPM) Service Information. TPM
Lamp On.
Customer Complaint/Technician Observation: Vehicle may have diagnostic trouble
codes (DTCs) C1501 C1502 C1503 C1504 C1501-31 C1502-31 C1503-31 C1504-31
tire pressure sensor mechanical failure/no signal. TPM lamp may be on. Condition
could be intermittent or active.
Discussion: The customer may state the low tire warning lamp is ON with any of the
above DTCs. Verify tire pressure using a handheld pressure gauge/tool. Then, inspect
the wheels for physical damage including excessive or uneven wear like cupping
and/or feathering. Address any damage to the wheels and tires before proceeding with
the rest of the inspection. Using the ATEQ TPM RKE tester verify the sensor locations
to the vehicle by performing a "sniff test". Once you have confirmed the sensors are
working properly and they have been properly learned, look for aftermarket equipment.
If aftermarket equipment that it is likely to interfere with RF (radio frequency) is
detected, advise the costumer to remove it. Once removed, confirm sensors are
working properly with a drive test. If no aftermarket equipment is detected, proceed
with the normal service procedure. Ask the owner if the tire lamp lights up in certain
situations, for example at night or towing a trailer. Below is a list of items that could
potentially interfere or block TPM signals. Keep them in mind when normal diagnostics
do not resolve a TPM concern.
This document does not authorize warranty repairs. This communication documents a record of past experiences. STAR Online
does not provide any conclusions about what is wrong with the vehicle. Rather, it captures all previous cases known that appear
to be similar or related to the vehicle symptom / condition. You are the expert, and you are responsible for deciding on the
appropriate course of action.
Contact STAR Center, or your Technical Assistance Center Via TechConnect, eCONTACT or Service Library
entry if no solution is found.
Stellantis US LLC Version 4.5 07/22/2022
Electrical accessories.
LED lighting (may appear factory but contain non factory LED bulbs).
RV equipment.
Rear cameras or back up cameras (Aftermarket).
Toll road Transponder.
Transceivers/radios such as GMRS/FRS/CB/Ham .
DC/AC inverters (Aftermarket).
Wiring loose grounds.
After market added wiring causing RF coupling.
Off road / Uplift modifications.
Aftermarket illuminated splash shields.
RFH antenna disconnected, damaged, broken, mis routed.
Another aftermarket device introducing RF noise around 433Mhz.
Aftermarket GPS devices.
Aftermarket Wi-Fi hotspots.
Aftermarket window tint (most contain metal).
Aftermarket rims with different valve stem location or sensor angle/clocking.
Non factory valve stem caps.
Damaged TPM sensors during a seasonal tire change (winter tires).
New tires installed that may be steel reinforced.
Engine misfires/secondary ignition induced into the wiring.
Jeff and Kathy Root
3:04 pm
Club Trailmaster
March 13, 2015
Offline
Aftermarket TPMS are a known issue because of cheap parts but easy to check by swapping wheels are tires with a known good set for a weekend. This JL/JT will relearn a new set of sensors if left parked and off for 30 minutes then driven 30minutes above 30mph. My drives are typically slower and shorter but never had one not register a new set within a half dozen short drives.
I have a set of stock take-offs (255s) with the factory sensors or I have my 38s with dealer purchased OEM sensors you a welcome to try.
4:23 pm
Club Member
July 14, 2016
Offline
kris_olof said
Aftermarket TPMS are a known issue because of cheap parts but easy to check by swapping wheels are tires with a known good set for a weekend. This JL/JT will relearn a new set of sensors if left parked and off for 30 minutes then driven 30minutes above 30mph. My drives are typically slower and shorter but never had one not register a new set within a half dozen short drives.
I have a set of stock take-offs (255s) with the factory sensors or I have my 38s with dealer purchased OEM sensors you a welcome to try.
I would love to borrow your stock tires. I spoke to the dealer and to NorCal Motor Company today after emailing them. If the system works properly with the stock set of tires/wheels then I will know that the problem is with the wheels or sensors. If it still doesn't work properly, then it might be a problem in the system or related to some other modification, including aftermarket LED tail lights. They told me that the tire sensor that they did look at was installed backwards, which can throw off the gyro. Perhaps the other sensors are installed incorrectly but if so, then why would I still get a reading on them (except for the wrong location)? And why would the driver's side rear not show even after swapping the tires?
Jeff and Kathy Root
8:04 am
Club Member
May 12, 2023
Offline
Hope you are able to figure this out. When I changed to new wheels and tires, I got new TPMS (Dorman I think) and didn't have any issues. I have onboard CB and HAM, aftermarket trailer brake controller, steel rims and Nitto tires; no problems.
Dale Mogg - WRZG209
11:45 am
Club Member
December 14, 2018
Offline
Jeff, Buddy
It looks like it's there in the write-up of the most likely cause. Your ARB wiring runs down your driver's side and you have the On/Off switch over the driver's rear tire well. I would start there because poor shielded wiring could be the cause. I have aftermarket TPMS with 37s non bead lock and no issues. You are welcome to try them. It would be interesting to put your tires on another vehicle and see if they register correctly.
4:43 pm
Club Member
July 14, 2016
Offline
Sloguy said
Jeff, Buddy
It looks like it's there in the write-up of the most likely cause. Your ARB wiring runs down your driver's side and you have the On/Off switch over the driver's rear tire well. I would start there because poor shielded wiring could be the cause. I have aftermarket TPMS with 37s non bead lock and no issues. You are welcome to try them. It would be interesting to put your tires on another vehicle and see if they register correctly.
Thanks John! I will try disconnecting the wire in the engine compartment to see what happens.
Jeff and Kathy Root
5:01 pm
Club President
April 2, 2003
Offline
This is actually a fun and informative thread to follow!
Sorry Jeff that you are suffering, but it's quite educational.
Kathleen and Brad
7:21 am
Club Member
July 14, 2016
Offline
BKGM Jeepers said
This is actually a fun and informative thread to follow!
Sorry Jeff that you are suffering, but it's quite educational.
LOL, this is the kind of thing that drives me nuts! Most people would probably just live with the fact that they have three functional TPMS sensors that work, but in the wrong location. But no, I have to try to solve it! I think it's partly the challenge of it.
Jeff and Kathy Root
2:47 pm
Club President
April 2, 2003
Offline
Jeff_R said
BKGM Jeepers said
This is actually a fun and informative thread to follow!
Sorry Jeff that you are suffering, but it's quite educational.
LOL, this is the kind of thing that drives me nuts! Most people would probably just live with the fact that they have three functional TPMS sensors that work, but in the wrong location. But no, I have to try to solve it! I think it's partly the challenge of it.
I would do the same thing. Even little problems bug me. So keep us posted!
Kathleen and Brad
5:06 pm
Club Member
July 14, 2016
Offline
Sloguy said
Jeff, Buddy
It looks like it's there in the write-up of the most likely cause. Your ARB wiring runs down your driver's side and you have the On/Off switch over the driver's rear tire well. I would start there because poor shielded wiring could be the cause. I have aftermarket TPMS with 37s non bead lock and no issues. You are welcome to try them. It would be interesting to put your tires on another vehicle and see if they register correctly.
Hey John, I disconnected the ARB compressor at the battery, drove it and had the same result. The tires changed pressure during the drive so I think I drove it far enough to test that theory. It also has aftermarket LED turn signals and brake lights, so that could be the problem, especially since I get a warning message that I have a turn signal out but they actually do work. I know you can use a JL Taser programmer to change settings for turn signals, TPMS systems and many other things, so that might be my next move.
Jeff and Kathy Root
6:33 am
August 5, 2017
Offline
Jeff_R said
Hey John, I disconnected the ARB compressor at the battery, drove it and had the same result. The tires changed pressure during the drive so I think I drove it far enough to test that theory. It also has aftermarket LED turn signals and brake lights, so that could be the problem, especially since I get a warning message that I have a turn signal out but they actually do work. I know you can use a JL Taser programmer to change settings for turn signals, TPMS systems and many other things, so that might be my next move.
I wonder if they upgraded to LED lights that were not CANBUS compliant and did not put in the resistors to change the voltage level so the computer reads them right? Sounds like a fun conversation at the meeting tomorrow.
I got tired of dealing with my TPMS sensors and just turned them off, I use JSCAN with is significantly cheaper than the full capability tuners like Tazer, it mostly manages the on board systems without the engine performance tuning items.
Jamie & Damaris 
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