Signal Specification, Infotainment Head Unit (IHU)
General
All the values given below apply between the respective terminal (column 1) and power ground (#A15). If this is not the case, it is indicated within brackets.
NOTE:
It is important to connect the breakout box and check the ground connections before starting to measure.
| U= | DC voltage in volts (V) | UAC = | AC voltage in volts (V) |
| Ubat = | Battery voltage (V) | f = | Frequency in Hertz (Hz) |
| Ulow = | Voltage approximately 0 V | t = | Time in seconds (s) |
| PWM = | Pulse-width modulation |
CONNECTOR A (16 PIN: 1 - 8 ARE LIGHT BROWN, 9 - 16 ARE BLACK)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Ignition off | Miscellaneous |
|---|---|---|---|---|---|
| #A1 | #A:1 | LIN | U = 5 - 10 V | U = Ubat | When the control module sleeps: U = Ulow |
| #A2 | #A:2 | LIN, signal ground | U = Ulow | U = Ulow | - |
| #A3 | #A:3 | MS-CAN L | U = 1 - 4 V | U = Ulow | - |
| #A4 | #A:4 | MS-CAN H | U = 1 - 4 V | U = Ulow | - |
| #A5 | #A:5 | - | - | - | - |
| #A6 | #A:6 | - | - | - | - |
| #A7 | #A:7 | - | - | - | - |
| #A8 | #A:8 | - | - | - | - |
| #A9 | #A:9 | FM/AM-antenna | U = 10 - 12 V | U = Ulow | - |
| #A10 | #A:10 | - | - | - | - |
| #A11 | #A:11 | - | - | - | - |
| #A12 | #A:12 | Power supply | U = Ubat | U = Ubat | 12 V DC+. |
| #A13 | #A:13 | - | - | - | - |
| #A14 | #A:14 | - | - | - | - |
| #A15 | #A:15 | Ground | U = Ulow | U = Ulow | 12 V DC-. |
| #A16 | #A:16 | - | - | - | - |
CONNECTOR B (12 PIN, WHITE)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #A21 | #B:1 | AUX 1 right, + | U = Ulow | - |
| #A22 | #B:2 | AUX 1 ground, left + right | U = Ulow | - |
| #A23 | #B:3 | AUX 1 left, + | U = Ulow | - |
| #A24 | #B:4 | - | U = Ulow | - |
| #A25 | #B:5 | Mute video, input signal | U = Ulow | - |
| #A26 | #B:6 | Mute audio, input signal | U = Ulow | - |
| #A27 | #B:7 | AUX 2 left, - | U = Ulow | - |
| #A28 | #B:8 | AUX 2 left, + | U = Ulow | - |
| #A29 | #B:9 | AUX 2 right, - | U = Ulow | - |
| #A30 | #B:10 | AUX 2 right, + | U = Ulow | - |
| #A31 | #B:11 | - | U = Ulow | - |
| #A32 | #B:12 | Wake-up display | U = 3 V | Digital output signal. |
CONNECTOR C (12 PIN, BLACK)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #A41 | #C:1 | Microphone 1, + | U = 4 V | Analog input signal |
| #A42 | #C:2 | - | - | - |
| #A43 | #C:3 | Microphone out, + | U = 2 V | Not used. |
| #A44 | #C:4 | VICS, ground | U = Ulow | VICS only applies to Japan. |
| #A45 | #C:5 | VICS RX | U = Ulow | VICS only applies to Japan. input signal. |
| #A46 | #C:6 | VICS TX | U = Ulow | VICS only applies to Japan. Output signal. |
| #A47 | #C:7 | Microphone 1, - | U = Ulow | - |
| #A48 | #C:8 | - | - | - |
| #A49 | #C:9 | Microphone out, - | U = 2 V | - |
| #A50 | #C:10 | VICS screening | U = Ulow | - |
| #A51 | #C:11 | - | - | - |
| #A52 | #C:12 | VICS beacon power | U = Ulow | VICS only applies to Japan. approx. 700 mA. |
CONNECTOR D (4 PIN, 2 OPTICAL CABLES, MOST, BLACK)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #D:1 | MOST, RX | Not possible to measure. | Optical. | |
| #D:2 | MOST, TX | Not possible to measure. | Optical. | |
| #D:3 | - | - | - | |
| #D:4 | - | - | - |
CONNECTOR E (VIDEO INPUT TVM, 2 PIN, GREEN FAKRA)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #B41 | #E:1 | CVBS, composite video signal, from Television Module (TVM) | U = Ulow | Analogue in |
| #B42 | #E:2 | Ground and screening | U = Ulow | - |
CONNECTOR F (VIDEO INPUT PAC, 2 PIN, BROWN FAKRA)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #B43 | #F:1 | CVBS, composite video signal | U = 5 V | Analogue input signal from Parking Assistance Camera (PAC). |
| #B44 | #F:2 | Ground and screening | U = Ulow |
CONNECTOR H ("USB CONNECTION", 5 PIN, GREY)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #B21 | #H:1 | USB power supply | U = 5 V | 5 V DC+. Max 1.6 A. |
| #B22 | #H:2 | USB, data - | U = Ulow | Digital signal. |
| #B23 | #H:3 | USB, data + | U = Ulow | Digital signal. |
| #B24 | #H:4 | USB ground | U = Ulow | 5 V DC-. |
| #B25 | Fender | Screening | U = Ulow | - |
CONNECTOR I ("USB CONNECTION PHM/ETC", 5 PIN, BROWN)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #B-11 | #I:1 | USB power supply | U = 5 V | 5 V DC+. |
| #B-12 | #I:2 | USB, data - | U = Ulow | digital |
| #B-13 | #I:3 | USB, data + | U = Ulow | digital |
| #B-14 | #I:4 | USB ground | U = Ulow | 5 V DC-. |
| #B-15 | Fender | Screening | U = Ulow | - |
CONNECTOR J (VIDEO INPUT FRONT PARKING CAMERA, 5 PIN, GREY)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #B-1 | #J:1 | - | - | - |
| #B-2 | #J:2 | CVBS + composite video signal, from front parking camera | U = 1 V | Analog input signal |
| #B-3 | #J:3 | Screening | U = Ulow | - |
| #B-4 | #J:4 | CVBS - composite video signal, from front parking camera | U = 1 V | Analog input signal |
| #B-5 | #J:5 | - | - | - |
CONNECTOR L (VIDEO OUTPUT, SCREEN CENTRE CONSOLE, 3 PIN, LIGHT BLUE)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| - | #L:1 | LVDS (-) | Not possible to measure. | Digital signal, approx. 700 MHZ. |
| - | #L:2 | LVDS (+) | Not possible to measure. | Digital signal, approx. 700 MHZ. |
| - | #L:3 | Screening | U = Ulow | - |
CONNECTOR M (ANTENNA AMPLIFIER 1 AND 2, 4 PIN, WHITE DOUBLE-FAKRA)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #B31 | #M:1 | Antenna amplifier 2 FM/AM, signal main antenna. | U = Ulow | - |
| #B32 | #M:2 | Screening | U = 10 V | - |
| #B33 | #M:3 | Antenna amplifier 2 FM, signal sub antenna. | U = Ulow | - |
| #B34 | #M:4 | Ground. | U = Ulow | - |
CONNECTOR N (GPS ANTENNA, 2 PIN, BLUE FAKRA)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #B45 | #N:1 | GPS signal | U = 5 V | Analog input signal |
| #B46 | #N:2 | Ground and screening | U = Ulow | - |