You're saying that Schrader sensors need to be moving to transmit? Where did you hear that?

 

I found something that might help some of you guys having issues with your TPMS...

 

you shouldn't have to pay it literally takes 5 minutes, its not really something we charge for unless there is a bad sensor and then we charge break down of tire and sensor install. Dealers will normally charge between 0.3 and 0.5 tenths of an hour for this. Also keep in mind, to my knowledge none of the "specialized tools" for TPMS work with nissan/infiniti's tpms system, i tried a few off of the snap on truck and no worky so dealer is your best option. Just go in a plead your case or get it with an oil change, shouldn't be too much of a hassle.


the sensors in these cars, will tranmit every 10 seconds when the vehicle is moving at a rate above 25mph or every 1-3 minutes with the vehicle standing still and key on.

I might have phrased something wrong but could have been a fluke, but if i drive a car on the rack with the VDC off, and let the rear tires spin at about 30-40 mph, it trips all kinds of codes in many different ecms.

 

only if there is a leak, best way to find that leak is spray some soapy water around the stem and see if it bubbles, otherwise that perticular tsb would not apply. I have only seen a couple of them do that, and normally a happens if someoen over tighetens the 12mm lock nut around the stem. And they leak pretty quickly about 5-8 psi a day so you tire will be noticably low.

 

I think it's more like the BCM searches for 4 coded transmissions at different intervals based on vehicle speed, not that the sensors transmit variably. I'm certain that the logic is all in the BCM, the speed is determined by the VSS and that the stems are just a simple pressure switch and transmitter.

 

going back to the "cold weather affecting tire psi" thought... would inflating the tires up with nitrogen relieve this issue since I believe I heard nitrogen can not be affected in the same way during cold weather conditions as regular air in the tires?

 

Nope. All gasses expand and contract with temperature and change pressure accordingly. Air is about 78% nitrogen, the other 22% doesn't change things that much.
Race teams use nitrogen because the expansion is more predictable in extreme heat cycles, mostly because the nitrogen they use is processed to be very dry.
The best thing to do is check your pressures twice a month with a good pressure gauge - top them up as they drop in the fall and bleed some off as they increase in the spring.
BTW, it's not just cold weather - you'll get the same pressure change between 60 and 100F as you will between 0 and 40 F.

 

I was having similar problems with my 06 g35 coupe the light was constantly going on and off. I assumed it was just the cold. Then I went to check the tire pressure and put some air in my front driver side. I took the cap off and right where the ridges are for the valve stem cap split and was leaking then when the cap came of half of the valve stem came with it. I took the wheel to infiniti and argued until they covered the cost for a new monitor, bc my car is still under warranty but those monitors are on a conditional basis but they are like $180.

 

My warning light came on today, so I pulled over and found that the left rear tire pressure was down to 15psi. I drove a mile to a gas station where they removed a drywall screw and plugged the hole. When I drove away the warning light did not turn off, even after about 15 highway miles. So I checked the pressure again and found the tire was inflated to 30psi. I topped it up to 35psi, then drove a mile at about 30mph, and the warning light turned off. 2008 G35 Journey with nav and 18" factory wheels.

 

According to the manual on the '06, there is no sensor in the spare. My light stayed on after a 100 mile trip with all 4 tires set to 35 psi cold. the Infiniti dealer says they have to "reclibrate' the system at a cost of $52.50, but if a sensor is bad, they will do that under warranty.

 

Not in the space saver spare, but there is one in the full size spare.

But it's not programmed, so if you swap the spare on, the light will come on unless you program it to the car

 

What if the preesure goes low in the spare? I have the light on, but all 4 main tires have 35 psi. I have a black steel wheel for a spare, which doesn't appear to have a sensor in it.

 

I have an 04 Gx and it came with the full size spare as part of the options package and it has NO TPMS installed on the spare.. the valve stem is the typical black rubber valve stem.. has a virgin OEM Bridgestone on it.. still has the nubbies on the tire from the lack of road use.

just an fyi...