Fresh Air Blower Control Module

NOTE:

• Fresh Air Blower Control Module -J126- can be replaced separately only on the version on which the two components are no longer cast with each other (running change in production as of model year 2007).
• The fresh air blower control module replacement part is available in different versions. Be sure to use the right one.
• With ignition switched on and Fresh Air Blower -V2- actuated, fresh air blower control module connects B+ from terminal 4 of connector -C- to terminal 1 of connector -B-. Fresh air blower speed is regulated by fresh air blower control module via the ground connection between terminal 2 connector -B- and terminal 3 of connector -C-. Check using Vehicle Diagnosis, Testing and Information System VAS 5051 under "Guided Fault Finding" and refer to the appropriate SYSTEM WIRING DIAGRAMS information.

Fig 1: Identifying Connectors, Bolt, And Fresh Air Blower Control Module

Courtesy of AUDI OF AMERICA, LLC

Removing 

-- Remove the glove compartment. Refer to Removal and Installation .

-- Remove screw clips -A- (different versions -C- and -D-) and remove insulation mat -B-.

Fig 2: Identifying Insulation Mat Retainers

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect connectors -B- and -C-.

Fig 3: Identifying Connectors, Bolt, And Fresh Air Blower Control Module

Courtesy of AUDI OF AMERICA, LLC

-- Remove bolt -A-.

-- Remove fresh air blower control module -D- from mount in fresh air blower.

Installing 

Reinstall all removed components in the opposite sequence while observing the following:

-- Check DTC memory of Climatronic control module and erase malfunctions displayed if necessary using Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.

-- Perform Basic Setting and output Diagnostic Test Mode (DTM) of A/C system and check DTC memory again using Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.