Porsche Tech Tip: TPMS
Porsche TPMS systems use four antennas mounted in the wheel wells and a designated module for the tire pressure. The sensors use a 433mHz frequency. On most models, the menu will have the option for two sets of tires and sensor IDs for summer and winter tires.
Getting The TPMS Light Out On The First Try
Whether the customer brings in the vehicle with a TPMS light triggered, or one triggers as a result of performing some tire service, not being able to turn off the MIL can sometimes cause headaches for shops. Here are a few commonly overlooked issues that could be triggering a warning light.
VIDEO: What Is The TPMS Light Telling You?
Jason Stahl discusses the TPMS system, and what the light is telling you when it blinks, stays on, or turns off. Sponsored by Standard.
TPMS: Test Before You Touch
Test Before You Touch is almost a direct result of the “make inoperative” provision in the Motor Vehicle Safety Act as it applies to the Federal Motor Vehicle Safety Standard No. 138, Tire Pressure Monitoring Systems. In layman’s terms, the provision states that if a vehicle comes into a facility with working TPMS, it must leave the facility with working TPMS. A shop cannot knowingly disable TPMS in the vehicles that it services.
Nissan Tech Tip: TPMS Diagnostics
If the TPMS/LTPWS warning light is illuminated (continuously or flashing), the TPMS/LTPWS system can be diagnosed by turning the ignition to the “OFF” and then to the “ON” position. If the TPMS/LTPWS warning light is continuously illuminated (not flashing), the TPMS/LTPWS is operating normally and has detected low tire pressure in one of the tires.
VIDEO: Common TPMS Relearn Mistakes
Jason Stahl goes over some common mistakes made during a TPMS relearn, and how to prevent them. Sponsored by Standard.
TPMS TIP: Nissan Tire Pressure Diagnostics For Both Lights Checklist
This tech tip applies to Nissan vehicles like the Maxima, Altima and most other models with a Tire Pressure Monitor System (TPMS) or Low Tire Pressure Warning System (LTPWS).
Understanding Hyundai TPMS
Hyundai TPMS has an auto relearn function, but if a shop is initializing a sensor or doing a manual relearn, you will need a TPMS tool that can capture the sensor IDs and program them into the TPMS module.
Tech Minute: UHF Signals
Editor Andrew Markel discusses how UHF signals can impact TPMS relearns in this video sponsored by Bartec USA.
VIDEO: How Temperature Can Affect TPMS Relearns
Andrew Markel discusses why temperature inside the tire matters when resetting a TPMS system, and how an inherent feature in TPMS sensors can assist techs with this aspect. Sponsored by Bartec USA.
VIDEO: Tire Over-Inflation At The Pump?
Andrew Markel discusses how over-inflation may be caused by air pumps at gas stations. Sponsored by Bartec USA.
VIDEO: Can TPMS Disable Other Safety Systems?
Andrew Markel discusses how low inflation pressures can prevent certain safety systems from operating. Sponsored by Bartec USA.
