I have an 07 350Z Touring convertible and I have owned this car for about 4 years. The only real issue I have had is the TPS warning light. It flashes for about 30-60 seconds then stays on steady. Let me give you some history:

• Car is 2007 350Z Convertible Touring with 87,000 Kilometres. No winters and stored from Oct to May
• In the early days of owning this car I performed the reset function many times. It did work for some time then the light would come on periodically and sometimes go out on its own. The sure thing is it would come back on. I connected an extension wire to the white reset wire so I don't have to take the passenger side apart.
• I purchased and changed the TP sensors in each wheel. The light went away for 20 minutes.
• I have checked for bad grounds and checked to see if the car had a history and someone modified the wiring. No, everything is original.
• I have check the BCM for visual issues and my keyless entry module is under the passenger dash. Nothing obvious

I have AllData which isn't the friendliest software to use but I think I understand the flow from the TPS to the keyless Entry to the BCM to the light in the speedo.

Does anyone have any logical troubleshooting advice without cutting white wire?

Thanks

 

Same thing happened to me.....turned out that the TP sensors i bought that were brand new off of amazon had been probably sitting on a shelf for a long time or something (personal theory) and the battery was dead/dying.....so I got them again but from the dealership and issue gone for months now. Hope this helps

 

The TPMS on my 2017 Kia Sportage keeps coming on for one of my tyres. Have had it to Kia garage who say there is nothing wrong with the tyre, the rim or the valve. The tyre still loses pressure every 7 to 10 days. Any ideas please, this is sending me crazy.
Kodi nox

 

Check the valve stem. Last time that happened to me, I opened up the plastic cap, and air just gushed out cuz the stem was damaged.

 

The sensors are usually good for about 7-10 years(?)

When installing new tires, I purchased new Schrader sensors and did have to have them reset twice, but after that, they've been fine for months now. If you purchase them from a large company that replenishes their stock often, you're going to stand a better chance of success.