Telematic Control Module -J499- multi-pin connector assignments

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Fig 1: Telematic Control Module -J499- Multi-Pin Connector Assignments

Courtesy of VOLKSWAGEN UNITED STATES, INC.

42 pin multi-connector -T42-

1 - Signal activation - Dual Horn Auxiliary Relay

2 - Signal activation - "lock vehicle"

3 - Cellular telephone connection - Audio in (not used)

4 - Cellular telephone connection - Battery Feedback (not used)

5 - Cellular telephone connection - Ground (GND)

6 - Cellular telephone connection - TXD-transfer (not used)

7 - Cellular telephone connection - RTS (not used)

8 - Cellular telephone connection - shielding Ground (GND) (not used)

9 - CAN Bus - High

10 - Line (+) Output to radio

11 - Auxiliary speaker (+) (not used)

12 - Telephone microphone (+)

13 - K-wire, Data Link Connector (DLC)

14 - Power supply - Terminal 15

15 - Telematic indicator LED "red" (in Telematic Control Head)

16 - Telematic indicator LED "green" (in Telematic Control Head)

17 - not used

18 - Ground (GND) (Terminal 31)

19 - Ground (GND) (Terminal 31)

20 - not used

21 - not used

22 - Signal activation - Auxiliary Emergency Flasher Relay

23 - Signal activation - "unlock vehicle"

24 - Cellular telephone connection - Audio out (not used)

25 - Cellular telephone connection - Audio Ground (GND) (not used)

26 - Cellular telephone connection - power supply (not used)

27 - Cellular telephone connection - RXD (not used)

28 - Cellular telephone connection - RTS (not used)

29 - Signal status - Telephone (not used)

30 - CAN Bus - Low

31 - Line (-) Output to radio

32 - Auxiliary speaker (-) (not used)

33 - Telephone microphone (-)

34 - Mute - Radio

35 - Input "SOS" from telematic control head

36 - Input "Power" from telematic control head

37 - (not used)

38 - Crash-Signal from airbag control module

39 - Terminal 30 (B+)

40 - Terminal 30 (B+)

41 - Emergency (backup) battery (+) (not used)

42 - Emergency (backup) battery (-) (not used)