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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
⇒ “2.1 Air Routing and Distribution in Passenger Compart‐
ment“, page 44 .
– Coolant regulator (engine coolant may not warm properly if
regulator is malfunctioning). Refer to ⇒ Engine Mechanical;
Rep. Gr. 19 ; General Information .
4.7 Heated Seats, Checking
Note
♦
A condition exists, which does not allow the driver or passen‐
ger seat heating to switch on. Short circuit in the seat heating
element connector, open circuit in the voltage supply to the
Climatronic control module -J255- etc. If this is stored as a fault
in the Climatronic control module, refer to Vehicle diagnosis,
testing and information system -VAS5051B- under "Guided
Fault Finding".
♦
The function test for the heated seat activation is described in
A/C system Guided Fault Finding using -VAS5051B- in the
"Guided Fault Finding function.
♦
If the voltage measured on terminal 30 falls below the value
stored in the vehicle electrical system control module -J519- ,
then the heat seating power will be reduced to approximately
50%, or it will be switched off completely to take the load off
the generator. The Climatronic control module reduces the
duty cycle from 100% to less than 90 to 0%. Check using -
VAS5051B- under "Guided Fault Finding".
♦
Climatronic control module measured value block indicates
the front seat heater is switched on or why no activation is
occurring despite a request. Check using -VAS5051B- in "Gui‐
ded Fault Finding" function.
4.8 High Pressure Sensor -G65- , Checking
Pressure Signal
Special tools and workshop equipment required
♦ Assembly Tool -T10118-
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
96 Rep. Gr.87 - Air Conditioning
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