Self-Study Program

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J386 Driver door control unit
J387 Front passenger door control unit
J388 Rear left door control unit
J389 Rear right door control unit
Changes to the Audi A6 ´05
The door control units for the Audi Q7 have been
adopted from the Audi A6 ’05. This means that the
control unit and the window lifter motor are again
installed as separate units.
Control units
Door control units
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Substitute master functions
In case of failure of the convenience system central control unit J393, the driver door control unit acts as
a substitute master for the central locking system. In this case, opening by remote control and the Advanced
Key functions are not available. The vehicle must be opened and closed mechanically. In this case, the other
door control units evaluate the information from the driver door control unit directly.
Variants
The door control unit for the Audi Q7 is available in two variants - a Min variant and a Max variant.
The Max variant is required if the vehicle has any of the following functions:
● Advanced Key
● Ambient lighting
● Outside lights
● Seat memory
● Exterior mirror fold-back
● Auto-dimming exterior mirror
● Electrical child lock
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Installation locations of the control unit and
the window lifter motor
Window lifter motor
Control unit