Audi 2003 A8 - Removing and Installing Lane Change Assist Control Unit J769; J770; Calibrating Lane Change Assist - Test Equipment Layout

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– Release retainers -arrows A- and press lane change assist
warning lamp -1- out of exterior mirror housing -2- -arrow B-.
Installing
Installation is carried out in the reverse order; note the following:
Note
Warning lamp for lane change assist in exterior mirror must be
replaced completely with a new unit if the LED is defective.
– Install exterior mirror housing ⇒ Rep. gr. 66 .
12.4 Removing and installing lane change
assist control unit -J769- / -J770-
Removing
– Remove rear bumper cover ⇒ Rep. gr. 63 .
– Unplug electrical connector -3-.
– Remove bolts -2- and -4-.
– Pull lane change assist control unit -1- out of mounting on
bumper -arrow-.
Installing
Installation is carried out in the reverse order; note the following:
– Install rear bumper cover ⇒ Rep. gr. 63 .
Lane change assist control unit -J769- / -J770- must be recali‐
brated whenever bumper cover is removed
⇒ “12.5 Calibrating lane change assist - test equipment layout”,
page 321 .
12.5 Calibrating lane change assist - test equipment layout
Audi A8 2003 ➤
Electrical system - Edition 08.2014
12. Lane change assist 321