Very low tire pressure

[Guitarzan1942]

I've got the warning " very low tire warning". I've retrained the sensors, substituted one wheel for each of the tires, no change. Substituted 3 tires and left one on the ex., no change. Replaced the tpm module, no change. As far as I'm concerned, the only thing left is the wiring. When I retrain the tire sensors the horn honks each time, and I get the complete message, but the warning comes back every time. The fuse is shared by the power mirrors, and they still work. Any help is appreciated.

 

[Joe in NY]

most likely batteries are dying in the sensors. A shop can scan the TPMS codes

 

[Guitarzan1942]

If the batteries are dying would they still train? I have 8 rims and 7 will train and one won't. Ihave substituted all that train with no change in the warning.

 

[TechGuru]

Go have Discount Tire Co R&R all the sensors...

I'm so glad to have a 2003 without TPMS...

 

[Drewmcg]

Can you scan which corner is showing the low tire pressure? Is it always the same position? If so, maybe a bad wheel sensor at that corner?