Diagnostic Trouble Code (DTC) Information UEM-00A3
Condition
The upper electronic module (UEM) receives information transmitted by the tire pressure sensors in the wheels, irrespective of the car. The sensors which are registered in the vehicle can be checked by running a statistical selection. A list can then be stored internally in the upper electronic module (UEM).
The diagnostic trouble code (DTC) is stored if the upper electronic module (UEM) registers that the signal from the fourth of the four accepted sensors disappears whilst the vehicle is being driven.
The diagnostic trouble code (DTC) can be diagnosed after 10 minutes when the tire pressure warning system is active (vehicle speed is above 40 km/h (25 mph)).
Substitute Value
- None.
Possible Source
- Defective tire pressure sensor
- The receiver is not functioning.
Fault symptom[s]
- Message in the display.
- Warning lights and chimes/Tire pressure monitoring indication/no indication