Global Positioning System

Telematics

Telematics Control Module (J499) Connectors

Telematics Control Module





A Blue 42-pin connector, T42
B Antenna connection (GPS)
C Antenna connection (Telematics)

A - Multi-Pin Connector, 42-Pin, T42, Blue





1. Alarm horn relay (J641) activation

2. Lock vehicle activation

3. Audio in cellular telephone (not used)

4. Cellular telephone battery charge status (not used)

5. Cellular telephone ground (not used)

6. Cellular telephone TXD (not used)

7. Cellular telephone RTS (not used)

8. Cellular telephone shielding (not used)

9. Not used

10. LF signal output (+) to radio

11. Telematics auxiliary speaker (R91) (+) (not used)

12. Telephone Microphone (R38) (+):

13. K diagnostic

14. Terminal 15

15. Telematics indicator lamp (K186) status red

16. Telematics indicator lamp (K186) status green

17. Not used

18. Terminal 31

19. Terminal 31

20. Not used

21. Not used

22. Alarm system flasher relay (J237) activation

23. Unlock vehicle activation

24. Cellular telephone audio out (not used)

25. Cellular telephone ground (not used)

26. Cellular telephone power supply (not used)

27. RXD cellular telephone (not used)

28. Cellular telephone RTS (not used)

29. Cellular telephone signal status (not used)

30. Not used

31. LF signal output (-) to radio

32. Telematics auxiliary speaker (R91) (-) (not used)

33. Telephone Microphone (R38) (-):

34. Telephone mute to radio (R)

35. Emergency button signal input Telematics control head (E264)

36. OnStar button signal input of Telematics control head (E264)

37. Not used

38. Crash signal from Airbag Control Module (J234 )

39. Terminal 30

40. Terminal 30

41. Telematics emergency battery (A16) (+) (not used)

42. Telematics emergency battery (A16) (-) (not used)