The TPMS module is located above the vehicle's headliner. It is mounted directly on the roof's center cross member behind the hatch. The module is secured with two screws that are screwed into the cross member's weld nuts. The module's three connectors face the front of the vehicle.
The main purpose of the TPMS module is to detect the following conditions:
- Tire pressure drops below the minimum recommended - underinflated tire
- Tire pressure drops below the minimum recommended - significantly underinflated tire
- Position of the tire on the vehicle.
The TPMS module also communicates with the instrument cluster, providing the driver with appropriate warnings that reflect the importance of the detected conditions, as well as information about the status and malfunctions of TPMS components and parts.
Tire arrangement
Since the set pressure and limit pressure values are different for the front and rear tires, the TPMS module can detect the position of the tires on the vehicle and assign the identification information from the pressure sensors to the corresponding tire positions on the vehicle, such as FL (left front tire), FR (right rear tire), RL (left rear tire) and RR (right rear tire)).
The module detects the positions of the tires automatically. This function does not require driver intervention. The TPMS module can automatically detect the positions of the tires on the vehicle if the location of the tire pressure sensors or the tires themselves are changed.
Under any operating conditions, the TPMS module is capable of detecting the following conditions:
- Replacing one or more tire pressure sensors
- Missing one or more tire pressure sensors
- One or more "foreign" identification signals have been received, i.e. the module may be rejecting identification data from tire pressure sensors that do not belong to the vehicle.
- Replacing one of the car's wheels with the spare wheel, and vice versa.
[The original source of the article is the website: LRman.ru]
In case of replacement of tire pressure sensors, the module can automatically detect identification information of new sensors. This configuration function does not require manual intervention of the driver.
Spare Tire Identification
Depending on the vehicle's equipment, the spare tire may or may not have a pressure sensor.
If the spare tire has a tire pressure sensor, the TPMS module recognizes it and determines that it is a spare tire. It then monitors the tire pressure of that tire and alerts the driver if necessary. If the TPMS module expects the spare tire to have a tire pressure sensor and there is no pressure sensor, the module does not alert the driver of the malfunction, but a fault code is stored in the TPMS module.
If the spare tire pressure is monitored and the driver replaces the flat "working" tire with the spare, the module will not constantly remind the driver that there is a flat tire in the place of the spare. Thanks to this, the driver will not be constantly distracted by tire pressure warnings.
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