Signal Specification, Integrated Audio Module (IAM)
GENERAL
All the values given below are between the respective terminal (column 1) and power ground (#C1:8). 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.
NOTE:
The Integrated Audio Module (IAM) is available in many different versions with varying numbers of connectors. This signal description is a summary of all versions.
| 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 C1 (ALL LEVELS FOR INFOTAINMENT)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #1 | #C1:1 | Control module power supply | U = Ubat | - |
| #2 | #C1:2 | Power supply, antenna amplifier | U= 11 ±0.5 V | Output |
| #3 | #C1:3 | Analog input signal, microphone 1 (+) | - | - |
| #4 | #C1:4 | Microphone 1, ground | U = Ulow | - |
| #5 | #C1:5 | Analog input signal, AUX 1-input | - | Auxiliary input, left channel |
| #6 | #C1:6 | Analog input signal, AUX 1-input | - | Auxiliary input, right channel |
| #7 | #C1:7 | Ground, AUX 1-input | U = Ulow | Extra input |
| #8 | #C1:8 | Power ground | U=Ulow | - |
| #9 | #C1:9 | Ground, microphone 2 | U = Ulow | - |
| #10 | #C1:10 | Analog input signal, microphone 2 (+) | - | - |
| #11 | #C1:11 | Analog input signal, AUX 2-input | - | Auxiliary input, right channel (-) |
| #12 | #C1:12 | Analog input signal, AUX 2-input | - | Auxiliary input, right channel (+) |
| #13 | #C1:13 | Analog input signal, AUX 2-input | - | Auxiliary input, left channel (-) |
| #14 | #C1:14 | Analog input signal, AUX 2-input | - | Auxiliary input, left channel (+) |
CONNECTOR C2 (INFOTAINMENT LEVEL 0)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| #21 | #C2:1 | Analog output signal, speaker right front door (+) | - | Applies when the speaker is used |
| #22 | #C2:2 | - | - | - |
| #23 | #C2:3 | Analog output signal, speaker left rear door (+) | - | Applies when the speaker is used |
| #24 | #C2:4 | Analog output signal, speaker right rear door (+) | - | Applies when the speaker is used |
| #25 | #C2:5 | - | - | - |
| #26 | #C2:6 | Analog output signal, speaker left front door (+) | - | Applies when the speaker is used |
| #27 | #C2:7 | Analog output signal, speaker right front door (-) | - | Applies when the speaker is used |
| #28 | #C2:8 | - | - | - |
| #29 | #C2:9 | Analog output signal, speaker left rear door (-) | - | Applies when the speaker is used |
| #30 | #C2:10 | Analog output signal, speaker right rear door (-) | - | Applies when the speaker is used |
| #31 | #C2:11 | - | - | - |
| #32 | #C2:12 | Analog output signal, speaker left front door (-) | - | Applies when the speaker is used |
CONNECTOR C3 (ALL LEVELS FOR INFOTAINMENT)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| - | #C3:1 | Antenna signal | - | Input signal AM1 |
| - | #C3:2 | Antenna signal | - | Input signal FM2 |
CONNECTOR C4 (ALL LEVELS FOR INFOTAINMENT)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| - | #C4:1 | Input signal, MOST | - | Optical signal when the MOST network is activated |
| - | #C4:2 | Input signal, MOST | - | Optical signal when the MOST network is activated |
CONNECTOR C5 (INFOTAINMENT LEVEL 1 - 3)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| - | #C5:1 | Power supply USB | U=4.75-5.25V | - |
| - | #C5:2 | Data (-) | - | Digital input signal when the USB connector is used |
| - | #C5:3 | Data (+) | - | Digital input signal when the USB connector is used |
| - | #C5:4 | Signal ground | U = Ulow | - |
CONNECTOR C6 (INFOTAINMENT LEVEL 2 AND 3)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| - | #C6:1 | Digital output signal, LVDS data1 (+) | - | Output signal for Infotainment Control Module (ICM) |
| - | #C6:2 | Digital output signal, LVDS data1 (+) | - | Output signal for Infotainment Control Module (ICM) |
CONNECTOR C7 (INFOTAINMENT LEVEL 2 AND 3)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| - | #C7:1 | Analog output signal, video output, CVBS | - | Applies when the rear seat entertainment (RSE) is used |
CONNECTOR C8 (ALL LEVELS FOR INFOTAINMENT)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| - | #C8:1 | Antenna signal | - | Input signal GPS |
CONNECTOR C9 (ONLY JAPAN)
| Breakout box terminal | Control module terminal | Signal type | Ignition on | Miscellaneous |
| - | #C9:1 | Antenna signal | - | Input signal traffic information system Japan |