Removal and installation the control unit for servicing the J412 telephone (interface box)
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The control unit is located under the passenger seat next to the driver under the carpet. Remove the seat next to the driver. Remove the lower trim (panel) of the A and B pillars. Lift the carpet. Disconnect plug connector "3" and antenna "bluethot" "4" (if it is part of the equipment). Unscrew the "arrow" nuts (7 Nm). Holder "1" should be slightly tilted upward and control device "2" should be pulled out of it.
Installation is carried out in the reverse order of actions.