Tire Pressure Monitoring System (TPMS)
The Upper electronic module (UEM) can store diagnostic trouble codes (DTCs) in the event of a fault on the actual receiver or on one of the sensors.
In order to perform a correct evaluation of the function, the vehicle must have traveled faster than 40 km/h (25 mph) for more than 570 seconds. This time is accumulated time, i. e. the time count stops if the vehicle travels slower than 40 km/h if, for example, you stop at traffic lights.
The count continues where it was as soon as the vehicle travels faster than 40 km/h once again.
Upper Electronic Module can store two diagnostic trouble codes per sensor. One diagnostic trouble code for lost communication and one diagnostic trouble code for low battery voltage. When a diagnostic trouble code is stored, the ID-number of the sensor to which the diagnostic trouble code applies is also stored.
When a diagnostic trouble code is stored, a message will be shown in the Driver information module.