Audi TT - Page 137

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5.8.4 Left Temperature Door Motor -V158-
with Left Temperature Door Potentiometer/Actuator -G220-
Note
♦ You can check the adjustment motor's function via the “output
diagnostic test mode“ using Vehicle diagnosis, testing and in‐
formation system -VAS5051B- in the "Guided Fault Finding"
function or check it without a tester as follows: if not using a
tester, connect both contacts 5 and 6 on the adjustment mo‐
tor's connector to a 12 volt DC source. The adjustment motor
will move in one direction up until the stop, and will reverse
direction if the plus and minus contacts are switched. Use an
adapter cable. Refer to
⇒ “1.7 Adapter Cable for Activating Control Motors“,
page 30 .
♦ Perform a basic setting on the A/C after installing a new motor.
Refer to Vehicle diagnosis, testing and information system -
VAS5051B- in the "Guided Fault Finding" function.
♦ Use “output diagnostic test mode“ and “basic setting“ to test
the activation of A/C (heater) electrical components, if neces‐
sary (for example, allocation test) using Vehicle diagnosis,
testing and information system -VAS5051B- in the "Guided
Fault Finding" function.
♦ On the Audi TT with A/C system, both motors for left and right
temperature doors are controlled via one characteristics
curve, depending on the programmed end stops (only one
temperature setting on the Climatronic control module -
J255- ).
♦ Depending on the measured temperatures, the calculated
sunlight intensity and setting on Climatronic control module,
the calculated specified outflow temperature and therefore,
the specified position of the positioning motor, may be different
for the left and right side.
♦ On the Audi TT with heater (without A/C system), only one
temperature door motor is installed. Both temperature doors
for the left and right sides are connected via a shaft and moved
together by the Left Temperature door Motor -V158- .
Removing
– Remove the complete instrument panel and instrument panel
cross-member. Refer to⇒ Body Interior; Rep. Gr. 70 ; Re‐
moval and Installation .
– Remove left footwell vent -A- (driver side). Refer to⇒ Body
Interior; Rep. Gr. 68 ; Removal and Installation .
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
5. Removal and Installation 133