So I just purchased my GM's '06 G35X, he had been having issues with the TPMS light for a while. We would retrain all the sensors, and a few days the light would come back on! A few techs told him the sensors were bad. So he trades it in and I buy it! The car is perfect except for C1708,1709,1710,1711. I put new VOD TPMS sensors in it, train them (which takes 2-3 attempts per sensor) drive 20 miles and the light flashes again and stays on. Codes returned. I made my dealer get me factory sensors (which say Nissan) on them. Go through the same procedures as previously stated. This time it takes 2 days to start flashing again! I clear the codes and retrain with the Tech 40 tool, check TPMS data and the Snap On scanner shows retrain complete, ID's for the sensors, but 0 PSI for all sensors! What is going on here??? Any help would be greatly appreciated!

 

Wow! 99 views and nobody has a suggestion!

 

From the FSM, the way the system works is - the sensor-transmitter integrated with a valve is installed on a wheel, and transmits a detected air pressure signal in the form of a radio wave.

From there, the remote keyless entry receiver receives the air pressure signal transmitted by the transmitter in each wheel.

Then, the BCM reads the air pressure signal received by the remote keyless entry receiver, and controls the low tire pressure warning lamp operations. It also has a judgement function to detect a system malfunction.

So, my guess is, if you have brand new OEM sensors, and the training procedure works, but you're getting 0 PSI as a reading through the Tech tool, maybe the RKey or BCM has some sort of issue? The remote keyless receiver is transmitting 0psi to the BCM, so I'd start checking the grounds and wiring going into the Rkey unit first. Does the remote keyless system work otherwise, with the Smartkey?

 

Yes I have 2 and they both work fine