CIC Head Unit Circuit Diagram
INDEX REFERENCE CHART
| Index | Explanation |
|---|---|
| 1 | Central gateway module |
| 2 | Diagnosis interface |
| 3 | Dynamic stability control |
| 4 | Central information display |
| 5 | Junction box electronics module with power distribution box |
| 6 | Car Information Computer |
| 7 | USB port in glove compartment |
| 8 | Automatic climate control |
| 9 | AUX-In connection in center console (jack plug) |
| 10 | Controller |
| 11 | Roof antenna |
| 12 | Antenna amplifier with diversity |
| 13 | Rear power distribution box |
| 14 | SDARS satellite radio tuner |
| 15 | Steering column switch cluster |
| 16 | Instrument cluster |
| LVDS | Low voltage differential signalling |
| MOST | Media Orientated System Transport |
| USB | Universal serial bus |
| FlexRay | FlexRay bus system |
| K-CAN | Body CAN |
K-CAN signals at the CIC control unit, that are not defined in the system circuit diagram:
K-CAN SIGNAL FUNCTIONAL CHART
| In/Out | Signal | Source/sink | Function |
|---|---|---|---|
| In | Speed signal | Wheel speed sensor > DSC > ICM > ZGM > | Speed-dependent volume control |
| In | Terminal status | CAS > ZGM > | Terminal control |
| In | Timer bus signal | Instrument cluster > ZGM > | Transfer of ambient conditions |
| In | Control | CON > ZGM > | User interface control |
| In | KI. 58g | Light switch > FRM > ZGM | Button lighting/instrument lighting |
| Out | Rad_on signal | > ZGM > HiFi amplifier | Rad_on signal for HiFi amplifier |
MOST signals at the CIC control unit, that are not defined in the system circuit diagram:
MOST SIGNALS FUNCTIONAL CHART
| In/Out | Signal | Source/sink | Function |
|---|---|---|---|
| In | Decoded audio signals | DVD changer > | Speed-dependent volume control |
| In | Information | DVD changer > | Metadata (ID3 tags) |
| In | Date, time, language | Instrument cluster > ZGM > | Transfer of ambient conditions |
| In | KI. 58g | Light switch > FRM > ZGM > | Button lighting/instrument lighting |
| In | Data, audio signal | ULB-SBX > | Data, audio signal, USB interface, Center console |
| In | Data, audio signal | ULB-SBX > | Data, audio signal, mobile phone in snap-in adapter |
| Out | Rad_on signal | > Top-HiFi amplifier | Rad_on activation signal for Top-HiFi amplifier |
| Out | Audio signals | >Top-HiFi | Audio signals (subsequently converted in Top-HiFi amplifier and output to individual speakers) |