FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Information Electronics Control Module 1 (J794) Harness Connectors Overview






Information Electronics Control Module 1 (J794) Harness Connectors Overview






1. MOST bus fiber-optic cable.

2. Multi-pin connector, contact assignment, refer to => [ Contact Assignment Of Multi-Pin Connector 2 ].

3. Multi-pin connector for TV tuner (R78). Not available in the USA or Canada.

4. Multi-pin connector for Front information display control head (J685) => [ Contact Assignment Of Multi-Pin Connector 4 ].

5. Multi-pin connector for the External audio source connection (R199) => [ Contact Assignment Of Multi-Pin Connector 5 ].

6. Harness connector for GPS antenna (navigation).

7. Harness connector for GSM antenna (telephone).


Contact Assignment Of Multi-Pin Connector 2






Contact Assignment Of Multi-Pin Connector Part A

1 Telephone muting (UHV)
2 Voltage supply for the information display control head
3 Activation wire for the information display control head
4 Not used
5 Signal power On
6 Reset for the information display control head
7 Ring break diagnostic line
8 Not used

Contact Assignment Of Multi-Pin Connector Part B

9 Telephone ON signal
10 RX protocol from the information display control head
11 TX protocol to the information display control head
12 Voltage supply, terminal 31
13 SNDREQ signal from telephone baseplate
14 Reset for the information display control head
15 Voltage supply, terminal 30
16 Ground for the information display control head

Contact Assignment Of Multi-Pin Connector Part C

17 Not used
18 Microphone 2 input, positive
19 Microphone, negative
20 VICS TX
21 FBAS 2 input, negative
22 ETC. TX
23 Not used
24 Microphone 1 input, positive
25 Microphone, negative
26 VICS RX
27 FBAS 2 input, positive
28 ETC. RX

Contact Assignment Of Multi-Pin Connector Part D

29 AUX signal input, negative
30 AUX signal input, right
31 USB (+ 5V)
32 USB, negative
33 Not used
34 Detect
35 AUX signal input, left
36 AUX signal input, shielding
37 FBAS 3 input, positive
38 FBAS 3 input, negative
39 iPod data RX
40 iPod data TX

Contact Assignment Of Multi-Pin Connector 4






1 LVDS, negative
2 LIN
3 LVDS, positive
4 Minus

Contact Assignment Of Multi-Pin Connector 5






1 D, positive
2 iPod recognized
3 D, negative
4 Negative