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3 Tire Pressure Monitoring System
⇒ “3.1 General Information”, page 238
⇒ “3.2 Tire Pressure Monitoring Control Module 2 J793 , Re‐
moving and Installing”, page 239
3.1 General Information
Follow the information in the owner's manual.
If the vehicle has a tire pressure monitoring system display, it will
be documented on the vehicle data label or in ELSA in the Vehicle
Individual “Vehicle Data” by the PR number, refer to
⇒ page 249 .
Tire pressure monitoring display is a system that detects slow to
moderate reductions in tire pressure at a wheel position. With the
help of the ABS speed sensor, the tire pressure monitoring sys‐
tem + compares both the rolling circumference and the vibration
behavior of the individual wheels. The instrument cluster display
shows if there are any changes to one or more wheels. If only one
wheel is affected, the location of the wheel will be indicated.
The Rolling Circumference of the Tire can Change if:
♦ the tire pressure is too low.
♦ the tire has structural damage.
♦ the tire or the pressure was changed and the tire pressures
were not saved.
♦ the vehicle is loaded on one side.
♦ the tires on one axle are loaded more heavily (e.g. when tow‐
ing a trailer or driving up and down inclines).
♦ the spare tire is installed.
♦ one tire per axle was changed (or if the tires were rotated from
front to back or the other way around).
Tire Pressure Monitoring Display Appearing
The tire pressure monitoring display in the instrument cluster in‐
forms the driver if the tire pressure is too low or if there is a system
malfunction.
System malfunction in the TPMS
A malfunction in the system is stored in the Tire Pressure Moni‐
toring Control Module 2 - J793- DTC memory. The yellow TPMS
+/- lamp in the instrument cluster will blink for about a minute after
the “ignition is switched on”. A “TPMS” message is also displayed
in the instrument cluster. If there is a DTC memory entry, connect
-VAS- -5051 and select “Guided Fault Finding” -Vehicle Diagnos‐
tic Tester- .
Perform calibration: (readapt tire pressure)
The tire pressures must be stored in the MMI each time there is
a change in the tire pressure or after a tire has been changed.
– Switch the ignition on, select the “CAR” function button and
select the tire pressure monitoring system using the rotary
switch on the multimedia control head - E380- knob and save
the tire pressure by pressing the rotary knob.
Audi Q7 2007 ➤
Suspension, Wheels, Steering - Edition 01.2014
238 Rep. Gr.44 - Wheels, Tires, Wheel Alignment
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