Join Date: Sep 2017
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
If 4WD - system: QD-II
Current Mileage: 112000
No TPMS signal from left rear
I have no TPMS signal from any tire mounted in my left rear position. After reading other threads on TPMS problems, this seems to be a common occurrence. I have moved all my tires around and they all read OK until I put them in the left rear position. No tire TPMS reads in that position even when I know the TPMS reads OK in any other position. I know other have similar issues and I would like to know if anyone successfully fixed it. I have read somewhere that the 06 XK used the 315 MHz frequency for the 06 model but later changed to a different frequency due to interference problems. I suspect my problems is one of the following:
1) The 315 frequency has interference problems in the left rear position. If true, I would like to know what other item nearby uses the frequency for a signal. I would like to disconnect the other item and see if that fixes my TPMS issue so I can confirm that this is a frequency interference issue.
2) Weak battery. As far as I know, the TPMS sensors are the factory originals and they could be near the end of their battery life. Although they work in other tire positions, a weak battery could cause the signal to be low enough that it cannot punch thru any interference to reach the receiver (at the key). I had my TPMS sensors tested by a local tire shop and they said they were all working except for the left rear and spare. I suspect all they did was look at the dash display and report what it was saying. At the time I had them tested, I had not yet moved tires around and discovered my problem was left rear related.
PS - my spare shows as low on dash display also but I have not played around with it but I suspect it might read OK is I put it on the ground in a good position.
Bottom line - if this is due to the sensors being near the end of their life, I am OK with replacing them but I don't want to go to the expense of replacing them unless I know that will fix the problem. If I cannot find the problem, I plan to replace one sensor and put that tire in left rear position and see if that fixes the problem. If it does, then I will replace all so I have a fresh start.
Anyone else have this problem? How did you fix it?
06 Limited, 5.7L, 4x4, Light Khaki
89 Grand Wagoneer - everything works