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Where is the signal from the TPMS in the tire received in the car

Tiny
GARY KREBS
  • MEMBER
  • 2008 FORD EXPLORER SPORT TRAC
  • 4.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Where is the signal from the TPMS in the tire received in the car and is there a fuse for this receiver? I have had this in to four different shops (three Fords) for repairing this problem (warning light comes on for no reason under varied situations). So far the best advice was to change all the sensors, because they cannot determine which tire is faulty. I have taken it in twice while the warning light was on.
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Wednesday, June 21st, 2017 AT 11:44 AM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The system operates by sending radio signals it can be poor connection at dash, GEM module or body module or it is a can bus system problem which can only be found by a mechanic's scanner. A can bus problem is on ecomputer is not talking to the other or a wiring issue. The best thing here is to check gem, body and instrument cluster for good connection you might try using some dielectric grease on connections. It also could be aTP monitor but do not think so. The biggest pain will be getting to connections. The dielectric grease is sometimes sold at auto parts for bulb grease about $2.00 if it continues and no codes are showing with a mechanics scanner then replacement of one of said parts or sensors would be cure. The signal is sent to the smart junction box so maybe a problem there as Ford has had their share of those.
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Wednesday, June 21st, 2017 AT 12:21 PM
Tiny
GARY KREBS
  • MEMBER
  • 10 POSTS
Is it possible to disable this system (I am about sick of hitting reset many times a day to partially clear the message) if so, where and how? Then I will install an aftermarket valve stem system, for about the cost of one Ford tire sensor. Thank you for your information so far though.
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Wednesday, June 21st, 2017 AT 1:10 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Unfortunately you cannot disable the system. Any tire store has these sensors for about $40.00 each, maybe they will give you a deal. But keep in mind it may not fix the problem either.
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Wednesday, June 21st, 2017 AT 3:11 PM
Tiny
GARY KREBS
  • MEMBER
  • 10 POSTS
Thanks, I understand, that is why I was hoping to shut off the receiver. By the way, what is a GEM module? Never mind, googled it. Thanks again for your help.
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Wednesday, June 21st, 2017 AT 4:35 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,323 POSTS
Generic electronic module. Please use 2CarPros anytime, we are here to help. Tell a friend please.

Cheers, Ken
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Saturday, June 24th, 2017 AT 11:02 AM

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