Operation CHARM: Car repair manuals for everyone.

Navigation System







Navigation System from September 2008

Information electronics control module 1 (J794)





1. Connection block with four multi-pin connectors

2. MOST Bus

3. FBAS input

4. Gray 4-pin connector (T4am) to the front information display control head (J685)

5. 4-pin connector (T4ao) to external audio source connection (R199)

6. Not used

7. GPS connection from roof antenna (R216)

8. Not used

Unlisted connector terminals are not assigned.

A - Brown 8-pin connector (T8y)





1 LF mute from preliminary setup for cell phone preparation
2 Voltage supply to multimedia control head (E380)
3 Wake UP to multimedia control head
6 Res MU to multimedia control head
7 Ring-break diagnostic wire

B - Blue 12-pin connector (T12ac)





Left-hand drive vehicles

2 Microphone input (+) from microphone unit in front roof module (R164) (right front microphone (R141))
3 Microphone input (-) from microphone unit in front roof module (right front microphone)
5 FBAS wire (-) from rear view camera system control module (J772)
11 FBAS wire (+) from rear view camera system control module

D - Black 8-pin connector (T8z)





10 Data to multimedia control head
11 Data to multimedia control head
12 Terminal 31
14 Res BT from multimedia control head
15 Terminal 30
16 Ground to multimedia control head

2 - MOST Bus





1. Input

2. Output