TEBS E
7
External systems
139
7.5 Tire pressure monitoring system (IVTM)
Vehicle type
All trailer vehicles
Purpose
Permanent monitoring of the tire pressure on all wheels with pressure sensors.
Around 85 % of all punctures are caused by driving the vehicle with incorrect tire
pressure or creeping pressure loss while the vehicle is in motion. With IVTM it is
possible to reduce the risk of a tire bursting to 15 %.
Function
The tire pressures measured by the pressure sensor are transmitted to the towing
vehicle via the CAN bus and are usually displayed on the dashboard in towing ve-
hicles built 2007 or more recently.
Additionally the pressures can be displayed via the SmartBoard or a display. The
driver is warned on time with creeping or critical pressure loss. A pressure gauge is
no longer required.
Fault indicator / warning lamp: If IVTM detects a tire pressure that is too low, the
fault indicator / warning lamp starts to flash on the instrument panel after the igni-
tion is turned on. If the Trailer Remote Control is installed, the fault indicator for tire
pressure is illuminated.
Pressure loss 1 - 29 %: yellow fault indicator / warning lamp flashes
Pressure loss > 29 %: red fault indicator / warning lamp flashes
IVTM is for assistance only and does not release the driver form his duty of due
diligence to visually check the tires as well.
Please refer to the documents ‘IVTM – System description’, see chapter 4 ‘Intro-
duction’, page 12 => se
ction ‘Further information’ for a detailed description of the
system.
Connecting the components
Extract from schematic diagram 841 802 150 0
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