Audi TT - Heater Activation and Control Components

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1.5 Heater Activation and Control Compo‐
nents
Note
♦ If there is a malfunction in the system, first check the Clima‐
tronic control module -J255- DTC memory. Refer to Vehicle
diagnosis, testing and information system -VAS5051B- in the
"Guided Fault Finding" function.
♦ If no fault is displayed, read the measured value block for the
Climatronic control module and activate the component with
the “output diagnosis test mode“ function on the Vehicle diag‐
nosis, testing and information system -VAS5051B- in the "Gui‐
ded Fault Finding" function.
♦ Electrical checking of the various control motors, potentiome‐
ters and senders is described in Guided Fault Finding. Refer
to Vehicle diagnosis, testing and information system -
VAS5051B- in the "Guided Fault Finding" function.
♦ Perform the following work after completion of repair opera‐
tions:
– Check Climatronic control module -J255- DTC memory and
erase any possible displayed malfunctions using Vehicle di‐
agnosis, testing and information system -VAS5051B- in the
"Guided Fault Finding" function.
– Check coding of Climatronic control module using Vehicle di‐
agnosis, testing and information system -VAS5051B- in the
"Guided Fault Finding" function.
– If necessary, check adaptation of the Climatronic control mod‐
ule using Vehicle diagnosis, testing and information system -
VAS5051B- in the "Guided Fault Finding" function.
– Perform heater basic setting, Climatronic control module using
Vehicle diagnosis, testing and information system -
VAS5051B- in the "Guided Fault Finding" function.
♦ Components outside passenger compartment, refer to
⇒ “2.1 Components Outside Passenger Compartment“,
page 4 .
♦ Components inside the passenger compartment, refer to
⇒ “2.2 A/C Components Inside Passenger Compartment, Left
Side“, page 6 and
⇒ “2.3 A/C Components Inside Passenger Compartment,
Right Side“, page 8 .
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
1. General Information 3