Information Electronics Control Module 1 (J794)

Information Electronics Control Module 1 (J794)

Special tools, testers and auxiliary items required

• Fiber Optic Pliers Repair Set (VAS 6223)

• Protective Cap For Cable Connector (VAS 6223/9)

The Information electronics control module 1 is located inside the instrument panel.

- If control module is replaced, select "Replacement" function for appropriate control module in "Guided Fault-Finding" routine.

Use the Vehicle Diagnostic Tester.

- Turn off the ignition and all electrical consumers and remove the ignition key.

Removal

- Remove the CD from Information electronics control module 1.

- Remove the Climatronic control module (J255).

- Remove the screw - 2 - from Information electronics control module 1 - 1 -.






Pay attention to the wire routing to the display inside the instrument panel. It will not be possible to extend the display again if the wiring is routed incorrectly during installation.

- Remove the Information electronics control module 1 - 1 -.

- Release and disconnect all of the connections from the information electronics control module 1 and from the trim and switches.

- Connect the (VAS 6223/9) - 1 - to the connector for the MOST-Bus - 2 -.






Next, remove the trim piece with the switches - 1 - from Information electronics control module 1 - 3 -.






Removing The Trim Piece

- Remove the screws - 2 - (quantity: 4) and remove the trim piece with the switches - 1 - from Information electronics control module 1- 3 -.






Installation

- Install in reverse order of removal.

Pay attention to the wire routing to the display inside the instrument panel. It will not be possible to extend the display again if the wiring is routed incorrectly during installation.

- Be sure to guides the wires from the Front Information Display Control Head (J685) to the wiring harness and Information electronics control module 1 exactly, otherwise the front information display control head will not extend.

Component location overview for the tightening specification and installation instructions, refer to => [ MMI Radio Plus (RMC) Component Location Overview ] MMI Radio Plus (RMC) Component Location Overview.