S5 Quattro Coupe V8-4.2L (CAUA) (2009)
Control Module HVAC: Service and Repair
Fresh Air Blower Control Module
A/C System Control and Regulation Components
Fresh Air Blower Control Module
‹› The Fresh Air Blower Control Module (J126) as a replacement part is available in different versions, make sure of the correct application.
‹› With ignition switched on and Fresh Air Blower (V2) actuated, Fresh Air Blower Control Module (J126) connects "Plus" from terminal "4" of
connector - C - to terminal "1" of connector - B -. Fresh Air Blower (V2) speed is regulated by Fresh Air Blower Control Module (J126) via the
Ground (GND) connection between terminal "2" of connector - B - and terminal "3" of connector - C - Refer to Vehicle Diagnosis, Testing and
Information System VAS5051 in the "Guided Fault Finding" function.
Removing
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Move the passenger seats as far back as possible.
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Switch off ignition.
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Remove glove compartment.
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Disconnect the connector - A - and - B -.
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Remove the screws - C -.
CAUTION!
Heat sink on Fresh Air Blower Control Module (J126) may be hot.