Audi Q7 361 - Air Conditioning Sensors and Networking

Air conditioning
Sensor s a nd actuat or s
High -pr e ss ur e sen d er G65
I n the A u di Q7, the high pr essur e sen d er gen e r a tes a pr essur e - d ependent pulse width modulation sign al.
T h e high p r essur e sen d er G65 is n o t connected t o the LIN bus in this model.
P ossible f a ult memory entries inc l ude:
– U pper/lo wer l i mit e x ceeded/no t r ea c hed
– O p e n c i r c u i t
– S h o r t cir c uit t o positive/ear th
– D ef ective
T h e f a ult "upper limit e x ceeded" is only stor ed if the r e frig er ant pr essu r e is gr eater than 31 bar and then
r e mains above 27 bar f o r 5 se con d s.
Sunlight penetration ph ot o sensor s G107 and G134
As with the A 6 '05 , a pa ssive ph ot o sensor is
insta l led in the dash panel behind the w i ndsc r een,
which determine s the sunlight penetr atio n at the
right and le f t -hand s i des of the vehicle . T h e sensor
r e g ulate s the blower voltag e and the temperatur e is
lower e d on one side.
I n the e v ent of f a ilur e of one ph ot o se nsor , the value
fr om the functio n ing side is ado pted f o r the
def e ctive side. Shou ld b o th ph ot o sensor s f a il , a
pr ede t er mined substitute valu e is u s ed.
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