Question: What does TPMS or TPMS mean?


The TPMS system in the car (Tire Pressure Monitoring System) measures the current air pressure in the tire and warns the driver if the pressure in one or more tires is below 25% of the pressure recommended by the manufacturer. Today there are two different types of TPMS systems, direct and indirect. The much better utilized and more precise Direct System uses sensors that are installed on every wheel. These TPMS sensors communicate with the vehicle's TPMS control unit. The indirect system typically uses the speed sensors (ABS sensors) of the vehicle's anti-lock braking system (ABS) to monitor the pressure.

Question: How do you differentiate an indirect system from a direct TPMS system?


The direct TPMS system uses direct sensors (tire pressure sensors) that constantly measure the tire pressure in each wheel, while indirect systems do not use sensors. An indirect TPMS system uses the ABS sensors of the anti-lock braking system (ABS) to calculate the pressure.

Question: How do I check that my vehicle has direct TPMS sensors?


Check it with the Autel - TPMS tool. First select the vehicle manufacturer, then the model and the correct year of manufacture. The tool then determines whether the vehicle's tire pressure monitoring system is an indirect system (no TPMS sensors) or whether direct TPMS sensors are installed, either with rubber or metal valves.

Question: What are my advantages with a direct TPMS system?


If you compare the indirect system with the direct system, the direct TPMS system provides more information, a more accurate and more immediate tire pressure, a more accurate temperature and a possibly more accurate battery status.

Question: Warning indication by TPMS TPMS indicator light on?


TPMS warning lamp lights up if:

  1. The tire pressure on one or more tires is too high or too low.

  2. With a deviation of 25% from the recommended air pressure.

  3. One or more of the TPMS sensors may be defective / sensor batteries empty.

  4. TPMS receivers may not be able to receive sensor signals.

  5. The TPMS module may not work, is it defective?

Question: Which area of application of Autel MX sensors?


Autel sensors are designed for use in cars, SUVs and light commercial vehicles. MX sensors are currently not compatible with trucks.

Question: Which TPMS sensors can be replaced by Autel sensors?


Autel MX sensors can replace all TPMS sensors on the market, including OE sensors from the manufacturer (original equipment OE) and programmable universal sensors. Today, every MX sensor can be programmed to replace 98 percent of all sensors installed in the vehicle.

Question: Why do you need a TPMS programming tool?


Since 2007, all cars in the United States must have TPMS systems. Some luxury vehicles or sports cars introduced the TPMS system much earlier, for example Porsche in 1986. Most of these systems use battery-operated sensors. The batteries of these original sensors have an average lifespan of approximately seven years and cannot be replaced. Therefore, these sensors must be replaced by a specialist company.


TPMS programming tools can be used to:


• Verify that the sensors are still working by trying to activate them, reading the tire pressure and temperature, and displaying the battery life and sensor ID.


• Display manufacturer-specific learning procedures for all TPMS-capable vehicles


• TPMS - Tools with OBDII connection function can perform sensor IDs / position relearns. Almost 30% of the vehicles on the road today need such a tool to learn new TPMS sensor IDs in the TPMS module.


• Autel's TS508 and TS608 can not only perform OBDII re-learning, but can also diagnose tire pressure monitoring systems to diagnose faults and prompt the user to take the next step towards repair.


• All Autel TPMS tools can program MX sensors to replace existing sensors in 98 percent of TPMS-equipped domestic, Asian, and European vehicles.