Audi A8 2003 - Removing and Installing Battery Cut-Off Relay J655

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♦ Installing
– Install the control unit -1- in the reverse order of removal.
WARNING
There must not be anyone in the vehicle when connecting the
battery.
– With the ignition switched on, connect the battery earth wire
⇒ Electrical system; Rep. gr. 27 .
Note
♦ If the airbag warning lamp -K75- indicates a fault following in‐
stallation, the event recorder must be interrogated, erased and
interrogated again ⇒ Vehicle diagnostic tester.
♦ The control unit must be encoded after replacement ⇒ Vehicle
diagnostic tester.
3.3 Removing and installing battery cut-off
relay -J655-
Note
♦ The vehicle electrical system voltage is disconnected when
performing the control element test (as of software version
S082 and S084 the button is no longer triggered in the control
element test) or in the event of an accident.
♦ The battery cut-off relay -J655- interrupts the circuit electrical‐
ly. The battery cut-off relay -J655- must always be replaced
after triggering.
Removal with button
– Open the cover -8-.
– Unscrew the bolt -7-.
– Unscrew the terminal -3-.
– Unscrew the terminal -4-.
– Unclip the connector -6- at the retainer tabs -5- (2x).
– Unplug the connector -6-.
♦ Installing
– Install the battery terminal isolator -2- in the reverse order of
removal.
Audi A8 2003 ➤
General body repairs, interior - Edition 07.2011
120 Rep. gr.69 - Passenger protection