2020 Ram Tpms

Kyle Technician Wisconsin Posted   Latest   Edited  
Resolved
Chassis
2020 Ram 1500 Big Horn 5.7L (T EZH) 8-spd (850RE)
Aftermarket Tpms Sensors

Hello I have a customer with a 2020 ram 1500 big horn they recently purchased aftermarket wheels and tires with tpms sensor pre-installed. They came to us because the tpms light is on and the sensors aren't reading. The sensors in the wheels are autel mx sensors. I reprogrammed the sensors to verify they are correct for the vehicle. I attempted to preform the drive cycle in service data to pair them to the vehicle. They would not pair. System scan shows nothing that would prevent new sensors from learning. I'm clearly missing something here, but I'm coming up dry with service info. Thanks in advance 

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Daniel Owner/Technician
New York
Daniel
 

Need to get past the security gateway to get them to work.

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Glenn Owner/Technician
Texas
Glenn
 

Hello Kyle, Was the spare tire equipped with TPMS also? Are the tire dimensions larger than stock? Maybe Autel would be the best ones to ask about this issue.

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Kyle Technician
Wisconsin
Kyle
 

No tpms in the spare and tires and wheels are the same size.

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Kent Mechanic
South Dakota
Kent
 

Go in with your scan tool and see what the sensors identification numbers are for each sensor and if they match. If they don’t match, try manually entering in each sensors identification number into the vehicle.

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Jeff Owner/Technician
Wisconsin
Jeff
 

Had the same issue, had to use oem sensors. Apparently ram changed there frequency in 19 or 20.

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Bruce Owner/Technician
Pennsylvania
Bruce
 

Then you have a Autel TPMS tool. Did they trigger when selecting the vehicle? To program, the tires would have been deflated to 0 psi. Also make sure the tool is up to date as there may be missing options using an different Hz. I use Autel mx sensor 1's and have no problems.

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Jeff Owner/Technician
Wisconsin
Jeff
 

They could have updated there there program by now, I had this issue 2 years ago. I was using mx sensor 1 also.

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Kyle Technician
Wisconsin
Kyle
 

I do have the autel tpms tool as well as a snap on tpms4. I did deflate the tires when programming them. I'll double check the software version on the tool. Thank you.

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James Owner/Technician
Massachusetts
James
 

I have had similar issues with Chrysler and aftermarket TPMS sensors. Use OEM.

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Mitchell Service Manager
New York
Mitchell
 

make sure you select the correct one, with the Autel tool. DT or DH. went crazy, on a similar truck

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Derek Technician
Colorado
Derek
   

You have to have a tpms tool compatible with FCA Auto Auth and with the serial number registered on the account so the tool can actually get past the secure gateway to write the tpms data, other wise your just going to waste your time. I have the Autel ITS600 and it works with no problem on secure gateway equipped vehicles. I have used the snap on and Ateq tpms tools and they would not write the…

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Kyle Technician
Wisconsin
Kyle
 

The thing that confuses me is service info says new sensors will be learned just by driving. It don't say anything about having to write the tpms. I have a maxisys elite also do you know if that's something the elite can do?

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Dwayne Owner/Technician
Pennsylvania
Dwayne
 

It sounds like you are past that point, but one thing that can be done if installing a 2nd set of wheels is to copy the original sensors when programming the sensors. That way at least in theory the vehicle should not need to learn any new ID's. That being said I have had a couple vehicles over the years that Autel did not seem to work properly, and we needed to take them out and put other…

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Kyle Technician
Wisconsin
Kyle
 

O wow I can't believe I overlooked that option. I never even thought of I'll get ahold of the customer as hopefully they still have the factory wheels with the original sensors thank you.

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Dwayne Owner/Technician
Pennsylvania
Dwayne
 

One note on that- we use Autel frequently, and I was under the impression that once you program the sensors you cannot change the programming in the sensors? Am I wrong on that? I would have thought you would now need to use new sensors to make that idea work. Will be interesting to see how you make out.

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Bruce Owner/Technician
Pennsylvania
Bruce
 

You can reprogram the sensors over and over, I wondered the same thing so tried it.

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Rick Technical Support Specialist
Missouri
Rick
 

You may need O.E sensors to meet protocol for the gateway. Trying to find what Hz they are on.

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Kyle Technician
Wisconsin
Kyle Resolution
 

Thanks guys cloning the sensors worked I can't believe I overlooked that

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