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I recently upgraded my receiver on my 97 to a used one from an 01-04. I bought a brand new 01-04 keyfob and was able to program it just fine.
I just put new wheels on the car. Found a set of 'brand new' Orange TPMS sensors 01-04 type. I had Discount Tire do the mounting for me. Before they put the senors in I asked them to test with their TPMS tool and each one returned a signal. So they went ahead and mounted/balanced/installed everything. We go to program the sensors and nothing. They were using a round magnet + their tool while I used the DIC to put it into learning mode but we couldn't get the car to see the new senors.
Since the new keyfob works fine on the car and their tool could talk to the sensors I'm not really sure what to think.
Too late for this now, but they should have programmed them (and marked the correct position on the car) while they were holding them in their hand. If you end up having to change them again, do this. They are much easier to program where you can be close to the car and have the magnet close to the sensors.
Try programming the ones you have now by putting the magnet inside the barrel by the sensor, as well as over the valve ***'y. One or the other should work IF the sensors you have are operating on the correct frequency for the 01-04.
I recently upgraded my receiver on my 97 to a used one from an 01-04. I bought a brand new 01-04 keyfob and was able to program it just fine.
I just put new wheels on the car. Found a set of 'brand new' Orange TPMS sensors 01-04 type. I had Discount Tire do the mounting for me. Before they put the senors in I asked them to test with their TPMS tool and each one returned a signal. So they went ahead and mounted/balanced/installed everything. We go to program the sensors and nothing. They were using a round magnet + their tool while I used the DIC to put it into learning mode but we couldn't get the car to see the new senors.
Since the new keyfob works fine on the car and their tool could talk to the sensors I'm not really sure what to think.
I don't follow you when you said they are using a round magnet+ their tool?
Too late for this now, but they should have programmed them (and marked the correct position on the car) while they were holding them in their hand. If you end up having to change them again, do this. They are much easier to program where you can be close to the car and have the magnet close to the sensors.
Try programming the ones you have now by putting the magnet inside the barrel by the sensor, as well as over the valve ***'y. One or the other should work IF the sensors you have are operating on the correct frequency for the 01-04.
Since the keyfob works with the new receiver, odds are the receiver is fine? Sounds like possibly either the TPMS are the wrong frequency (I asked the tech to test them on 01-04 freq) or too weak of a signal for the car to pickup? Can anything be done on the car side to increase it's sensitivity?
I don't follow you when you said they are using a round magnet+ their tool?
I've seen it said that the programming magnet is round so it can sit around the valve stem. That's the type they used but the tech was also holding the TPMS tool next to the tire. Honestly not sure what he was doing other than perhaps monitoring to see if the sensor was giving off a signal.
I've seen it said that the programming magnet is round so it can sit around the valve stem. That's the type they used but the tech was also holding the TPMS tool next to the tire. Honestly not sure what he was doing other than perhaps monitoring to see if the sensor was giving off a signal.
Gotch ya... was just curious hadn't heard of needing anything besides the magnet...
Since the keyfob works with the new receiver, odds are the receiver is fine? Sounds like possibly either the TPMS are the wrong frequency (I asked the tech to test them on 01-04 freq) or too weak of a signal for the car to pickup? Can anything be done on the car side to increase it's sensitivity?
Viagra? Just kidding... NO, not that I'm aware of, but I'm still learning.
Many threads on the Forum about people purchasing the "orange" TPMS and then being unable to successfully get them to be recognized by the C5..... Probably should have searched the Forum before you "saved the money" over Schrader TPMS....
Actually I did and it seemed like it worked for some thou not all of course. Have been trying to save money where I can, got those 4 for 80 bucks total, shipped.
Actually I did and it seemed like it worked for some thou not all of course. Have been trying to save money where I can, got those 4 for 80 bucks total, shipped.
I can understand the part about saving bucks but for somethings it just isn't worth it. Lets just say, for the sake of argument that those "Orange TPM's" are faulty. Now you will have to purchase new sensors plus pay again to have the tires broken down, new monitors installed and have the tires re-balanced. Your cost savings just got thrown out the window.
I can understand the part about saving bucks but for somethings it just isn't worth it. Lets just say, for the sake of argument that those "Orange TPM's" are faulty. Now you will have to purchase new sensors plus pay again to have the tires broken down, new monitors installed and have the tires re-balanced. Your cost savings just got thrown out the window.
Or I can just live without TPMS. It was a gamble, not arguing that.
I used the magnet from Medtronic the purpose of which to disable my pacemaker. Worked great to reprogram TPM's PS - Tire dealer's machine would not do it.
Last edited by UM Rebel; Sep 10, 2015 at 01:36 AM.
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Originally Posted by 65GGvert
Too late for this now, but they should have programmed them (and marked the correct position on the car) while they were holding them in their hand. If you end up having to change them again, do this. They are much easier to program where you can be close to the car and have the magnet close to the sensors.
Try programming the ones you have now by putting the magnet inside the barrel by the sensor, as well as over the valve ***'y. One or the other should work IF the sensors you have are operating on the correct frequency for the 01-04.
Since the keyfob works with the new receiver, odds are the receiver is fine? Sounds like possibly either the TPMS are the wrong frequency (I asked the tech to test them on 01-04 freq) or too weak of a signal for the car to pickup? Can anything be done on the car side to increase it's sensitivity?
Just went through this when I replaced 2 back tires.
I bought 2 new sensors (gm part #25773946, $51.24). The original sensors were 11 years old.
The big problem is the old ones were too weak when doing the "TPMS training". The receiver could not hear them.
If you have a scanner radio, tune it to 315 MHz - you can hear it work. Put the round magnet on a (schrader) sensor tire stem, it will broadcast a series of pulses. This is the ID code.
I could use a $5 magnet from harbor freight to set them off. But it would not work on the old sensors (even though I could hear them on the scanner).
Then I bought the OEM magnet ($15 from tire rack). With that magnet, I finally got them trained. It worked in the morning when the outside temps were lower (around 75dF). It did not work in the afternoon when the temp was 100 dF. Maybe the sensor battery was
stronger early in the day.
Or I can just live without TPMS. It was a gamble, not arguing that.
I replaced 3 of the TPMS on my 2002 coupe (one was replaced by previous owner) with Orange part number SC 3946 purchased on Ebay. I did not have any problem programming the sensors with a magnet. You need a strong magnet and may need to try a couple of places on the rim. Orange Electronics makes OEM sensors for Mercedes and several others. To the naked eye the quality looks good and they come with nut, gasket and valve cap. If I read the date codes correctly the sensors I bought were made in June 2008. This may explain the low Ebay price. The batteries used have a long shelf life so I am not worried about the build date. Only had them on since September 2014 so time will tell.
Sounds like there is still a shot if I can find a massive magnet. The ebay seller told me they have seen issues with Discount Tire activating sensors, thought I should try Firestone. /shrug
They did offer to give me a refund but it would cost me 60 bucks to dismount the tires just to get my 80 bucks back in sensors.
I have had several sets of OEM and Schrader TPMS that I trained to the car with a small 2'x1"x1/4" cheap magnet from Radio Shack. I had the best luck when I put the magnet in the barrel of the wheel just past the end of the valve stem. It is closer to the sensor in that position and it worked for me on 5 or 6 sets of sensors.
Until I got another set of Schrader's. I could only get 2 of the sensors to chirp the horn occasionally. Most of the time they would not work. I was frustrated because I had done several sets before and I knew the method should work. I finally bought the same size magnet but the strongest one I could find. (neodymium N52) It is much stronger than the one I had been using. This set of TPMS trained all four on the first try with the new magnet. I believe it was simply a difference between how easy the TPMS sensors trigger maybe due to manufacturing tolerances? I don't know why the difference, but the stronger magnet worked first time.
TPMS Upgrade Issues
Hope you can get them to sync with the car.
