Bus messages
Trionic T7 uses the following information:
INFORMATION USED BY TRIONIC T7
| Information | Unit | Sensor system | Description |
|---|---|---|---|
| Maximum permissible torque | N.m | TCM | TCM sends maximum permissible torque, unit N.m. The value is used in the air mass control for engine torque limitation. |
| Sport position selected | ON/OFF | TCM | TCM sends sport position, unit ON/OFF. The value is used in the air mass control to correct the conversion of the pedal position to requested air mass/combustion. |
| Selector lever position, automatic transmission | PRND321 | TCM | TCM sends selector lever position, unit PRND321. The value is used in the air mass control for idle speed control. |
| Vehicle speed, rear left wheel | km/h | MIU | MIU sends speed, unit km/h. The value is used by cruise control and as a substitute value if the speed signal from ABS disappears. |
| Reverse gear selected | ON/OFF | DICE | DICE sends reverse gear engaged, unit ON/OFF. The value is used to determine if first gear or reverse gear is engaged as the gear ratio is not enough to distinguish between them. |
| AC request | ON/OFF | DICE | DICE sends A/C request, unit ON/OFF. The value is used in the air mass control, compensation, to compensate for the increase in load. The control module also activates the A/C relay. |
| AC pressure, high-pressure side | bar | DICE | DICE sends pressure, unit bar. The value is used in the air mass control, compensation, to calculate the increase in load before the A/C compressor is activated. |
| Current consumption | A | DICE | DICE sends the calculated current consumption of the electrically heated rear window and radiator fans just before they are activated, unit A. The value is used in the air mass control, compensation, to compensate for the increase in load. |
| Fuel level | Liters | MIU | MIU sends fuel level, unit Liters. The value is used in the on-board diagnostics to generate special diagnostic trouble codes during misfiring in conjunction with low fuel levels and for adaptation of the tank pressure sensor value. |
| CHECK ENGINE Request | ON/OFF | TCM | TCM sends request, unit ON/OFF. The value is used in the on-board diagnostics to turn on the CHECK ENGINE lamp when ON is sent. Diagnostic trouble code P1624 is generated to indicate a fault in TCM. |
| Immobilizer | ON/OFF | TWICE | TWICE sends immobilizer, unit ON/OFF. The value is used in the fuel injection to activate fuel shut-off. |
| Ignition +50 | ON/OFF | DICE | DICE sends +50, unit ON/OFF. The value is used for diagnosis of the crankshaft position sensor. |
| Diagnostics | DICE/diagnostic tool | The diagnostic tool sends a diagnostics request via DICE, no unit. The value is used to respond to the current request. |
Trionic T7 transmits the following information:
INFORMATION TRANSMIT BY TRIONIC T7
| Information | Unit | User system | Description |
|---|---|---|---|
| Engine Torque | N.m | TCM | Current air mass/combustion converted to engine torque, unit N.m. The value is used by TCM. |
| Accelerator pedal position | % | TCM | The highest of the air mass/combustion values requested from the accelerator pedal position or cruise control is selected. The value is converted to a corresponding accelerator pedal position, unit percent. The value is used by TCM. |
| Kick Down | ON/OFF | TCM | When the voltage from pedal potentiometer 1 corresponds with the kickdown position (below 1.50 V), kickdown ON, unit ON/OFF is sent. The value is used by TCM. |
| Engine RPM | RPM | MIU, TCM and ACC | Current engine speed sent, unit RPM. The value is used by TCM, ACC and MIU. |
| Engine coolant temperature (C) | °C | MIU, DICE and ACC | Current temperature is sent, unit °C. The value is used by ACC, MIU and DICE. |
| Engine running. | ON/OFF | ACC, DICE | ON is sent when the engine speed exceeds 650 RPM, unit ON/OFF. The value is used by ACC and DICE. |
| Turbo pressure gauge value | No units (0 - 255) | MIU | Current air mass/combustion is converted to a value between 0 and 255. The value is used by MIU. A fixed value corresponding with a needle position between white and orange is sent when the engine is stationary. |
| CHECK ENGINE. | ON/OFF | MIU | ON, unit ON/OFF, is sent when the on-board diagnostics reports that the lamp is to be turned on. The value is used by MIU. |
| SHIFT UP (Only US/CA) | ON/OFF | MIU | ON, unit ON/OFF, is sent at low loads and high engine speeds and at very high engine speeds irrespective of load. The value is used by MIU. |
| CRUISE lamp | ON/OFF | MIU | ON, unit ON/OFF, is sent when cruise control is activated with the switch. The value is used by MIU. |
| Fuel consumed since start | ml | MIU | When the ignition is switched on, the value is 0 ml and is then accumulated for each injection, unit mL. The value is used by MIU. |
| Diagnostics | DICE/diagnostic tool | Trionic T7 responds to the diagnostics request from the diagnostic tool via DICE, no unit. |