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Overall layout of telematics system > < Connectors at telephone/telematics control unit J526

A3 Mk1

Contact assignment of multi-pin connectors
Contact assignment of multi-pin connectors
  Note!
Contacts not listed are not used.
   
46-pin connector
1 - Hands-free loudspeaker (-) (up to MY 01)
2 - Hands-free loudspeaker (+) (up to MY 01)
3 - Handset (-)
4 - Handset (+)
5 - Handset FCH (+)
6 - Handset FCH (-)
10 - Breakdown help button -E275- LED
11 - Emergency call button -E276- LED
12 - Screen earth
13 - Fax socket (CTS)
14 - Fax socket (TXD)
16 - Emergency loudspeaker (-)
17 - Emergency loudspeaker (+)
18 - Handset microphone (+)
19 - Handset earth
20 - Handset FHC (-)
21 - Breakdown help button -E275-
22 - Vehicle speed signal
23 - Reverse gear signal
27 - Fax socket (RTS)
28 - Fax socket (RXD)
29 - Fax socket (earth)
30 - Hands-free microphone
31 - Hands-free microphone
32 - Handset microphone (-)
33 - Handset power supply (12 V)
34 - Handset FHC (+)
35 - Handset screen
36 - Crash signal
37 - Emergency call button -E276-
38 - CAN bus High (infotainment)
39 - CAN bus Low (infotainment)
41 - K-wire (diagnosis)
42 - Fax socket (DTR)
43 - Fax socket (DCD)
A1 - GPS aerial filter
  A91-0442
10-pin connector
1 - Battery + (terminal 30)
2 - Telephone/telematics muting
3 - Terminal 15
4 - Earth (terminal 31)
5 - Earth (terminal 31)
6 - Battery + (terminal 30)
7 - Battery + (terminal 30)
9 - Switch illumination (terminal 58s) (up to MY 01)
10 - Earth (terminal 31)
A1 - Telephone aerial
A3 - Emergency aerial
  A91-0443

Overall layout of telematics system > < Connectors at telephone/telematics control unit J526