| Signal | Signal description | Type of signal | Effect | Proteus relevant |
|---|---|---|---|---|
| WK | Torque converter clutch | GND = torque converter clutch engaged (ON) | DME selects corresponding characteristics map | No |
| ME | Engine intervention (ignition angle intervention) | Ground = ON | DME reduces torque during the gearshift procedure (ignition timing retarded) | Mandatory |
| TR | Engine speed signal (3 timer pulses per crankshaft revolution) | Square-wave voltage | EGS receives information relating to the engine speed | Mandatory |
| ASC/MSR | Automatic stability control or engine drag torque control | U-Bat | 2 functions within DME control unit: complete torque cut-off if currently active (MSR) Otherwise, ignition timing set towards retard (ASC) | Optional |
| ASC/ZAB | Automatic stability control, ignition fade out | U-Bat | DME fades out the ignition and fuel injection (not in ASC+T) | Optional |
| TD | Engine speed signal (once per ignition cycle) | Square-wave signal | EML undertakes idle control and engine speed limitation. ASC requires this information to ensure it does not stall the engine. Instrument cluster requires this signal for tachometer. | Mandatory |
| ASC+T | Automatic stability control + traction | U-Bat = ON | With ASC+T is active, EGS prevents alternate gearshifts in transmission. | No |
| DKR | Throttle reduction | Square-wave voltage with fixed frequency and variable duty factor | EML reduces throttle opening angle | Optional |
| DKE | Throttle increase | Square-wave voltage with fixed frequency and variable duty factor | EML increases throttle opening angle | Optional |
| DKV | Set throttle value | Square-wave voltage with fixed frequency and variable duty factor | ASC/MSR receives information on the current status of pedal position sensor (driver requirement) | Mandatory Lua |
| LL | Idle signal | Ground = ON | DME selects corresponding characteristics map | No |
| VL | Full load signal | Ground = ON | DME selects corresponding characteristics map | No |
| ti | Injection signal | Square-wave voltage | EML synchronises the throttle valves | No |