The MIU sends the following information:
INFORMATION VALUE
| Information | Values | Used by | The value depends on the following sensor input, signal or function |
|---|---|---|---|
| Vehicle speed | km/h (mph) | DICE, SID, ACC, Audio, TWICE, STC |
Wheel speed, RL (lead from ABS). The MIU controls the speedometer |
| Engine speed | 0-7000 rpm | ACC | The main instrument unit sends engine speed information which is received by the MIU via a lead from Trionic or Motronic. |
| A/C relay | ON/OFF | DICE | The MIU receives information via a lead to Trionic/Motronic. When the A/C relay is active, the MIU sends this information out on the bus. |
| Acoustic warning | Acoustic information | SID | Request for acoustic signal when central warning lamp or Info Displ goes on. |
| Tighten fuel filler cap | ON/OFF | SID | If a fault develops in the tank venting system, the MIU receives information about it via a lead from Trionic. The MIU sends Tighten fuel filler cap information out on the bus and the message is displayed on the SID unit. OBDII only. |
| Coolant temperature | -40-215°C | DICE, ACC, SID | The MIU has a coolant temperature sensor function on petrol-engined cars. The current temperature is sent in °C. |
| Fuel Consumed Since Start | 0-65535 ml | SID | Lead from Trionic, Motronic 2.10. Value adjusted by a factor in the MIU. The factor can be adjusted using the diagnostic tool. |
| Fuel level | litres | SID | The MIU sends information on the current amount of fuel in the tank. |
| Odometer reading | km, miles | SID | Information on distance driven. |
| Identification number | - | TWICE | The number is generated in the MIU when the immobilization code is programmed in TWICE. |
| Diagnostics communication | - | DICE/Diagnostic tool | Control module should be live and the bus leads intact. |
| Engine has started | ON/OFF | SID | When engine speed is higher than 310 rpm the MIU sends the Engine has started ON message out on the bus. |