GF40.15-P-2005TX Detection of Pressure Loss, Function

GF40.15-P-2005TX Detection of pressure loss, function
- with CODE (477) Tire pressure loss warning





Warning messages





Reminder message

Function
The ESP control unit (N47-5) compares the 4 wheel speeds as a function of tire inflation pressure. A learning phase follows reactivation. In this phase the relative rolling circumferences of the tires are taught in 6 different vehicle speed intervals. Tire pressure loss warning (RDW) is not active in this learn mode. The coordination of the individual intervals takes 10 minutes/interval.

From this point onward the tires:
^ LF and RR
^ RF and LR are subjected to mutual comparisons.

Warning messages
The tire pressure loss warning RDW has established while driving that the rolling circumferences of the wheels have changed relative to each other (considerable pressure loss in one tire).

Reminder message
This message is displayed in the multifunction display (A1p13) after a red warning message, if tire pressure loss warning is not subsequently reactivated.