System Diagram
Telephone System Connector Assignments
Telephone Transceiver Connectors
A Bluetooth Antenna (R152) connection (yellow)
B Black 54-pin multi-pin harness connector
• Unlisted connector terminals are not assigned.
B - Black 54-pin multi-pin harness connector
1 Terminal 30
2 Terminal 31
8 NF (+) out to Radio (R)/Navigation System with CD Drive Control Module (J401 )
9 NF (-) out to Radio (R)/Navigation System with CD Drive Control Module (J401 )
10 Terminal 31 (screen ground) (not used)
11 Microphone input (+) Telephone Microphone (R38)/Navigation System with CD Drive Control Module (J401)
12 Microphone input (-) Telephone Microphone (R38)/Navigation System with CD Drive Control Module (J401)
15 K diagnostic
16 NF mute to Radio (R)/Navigation System with CD Drive Control Module (J401 )
17 CAN-Bus High (Infotainment)
18 CAN-Bus Low (Infotainment)
37 Terminal 30 to Telephone Baseplate (R126)
39 Terminal 31 to Telephone Baseplate (R126)
41 Terminal 30 to Telephone Baseplate (R126)
42 Microphone output (+) to Telephone Baseplate (R126)
43 Microphone output (-) to Telephone Baseplate (R126)
44 Terminal 31 (screen ground)
45 LF input (+) from Telephone Baseplate (R126)
46 LF input (-) from Telephone Baseplate (R126)
47 SNDREQ signal from Telephone Baseplate (R126)
49 Ser-Tx (+) to Telephone Baseplate (R126)
50 Ser-Tx (-) to Telephone Baseplate (R126)
51 Ser-Rx (+) from Telephone Baseplate (R126)
52 Ser-Rx (-) from Telephone Baseplate (R126)
Telephone Base Plate Connectors
A Black 12-pin multi-pin harness connector (T12)
B GSM connection (purple) from Telephone Antenna (R65)
• Unlisted connector terminals are not assigned.
Black 12-pin multi-pin harness connector (T12)
1 Ser Tx (+) to Telephone Transceiver (R36)
2 Terminal 30 from Telephone Transceiver (R36)
3 Ser Rx (+) from Telephone Transceiver (R36)
4 Terminal 31 from Telephone Transceiver (R36)
5 Microphone input (+) from Telephone Transceiver (R36)
6 NF (+) to Telephone Transceiver (R36)
7 Ser Tx (-) to Telephone Transceiver (R36)
8 Terminal 30 from Telephone Transceiver (R36)
9 Ser Rx (-) from Telephone Transceiver (R36)
10 SNDREQ signal to Telephone Transceiver (R36)
11 Microphone input (+) from Telephone Transceiver (R36)
12 NF (-) to Telephone Transceiver (R36)