Diagnostic Functions

Diagnostic functions

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 (approx. 9.5 minutes). This time is accumulated time, i.e. the time count stops if the vehicle travels slower than 40 km/h (25 mph) 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 (25 mph) once again.
Upper Electronic Module (UEM) 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 (DIM).

Quick check of TPMS




The system can be checked, using the diagnostic tool, by activating a read off at the same time as activating the sensors using a special tool.
The special tool is placed against the tire in the place where the sensor is installed, at the same time as you push in a button on the special tool. Then the special tool sends out a signal that activates the sensor so that it starts to transmit signals to Upper Electronic Module (UEM). The activated sensor's ID-number and tire pressure are then shown on the display in the diagnostic tool.