ELECTRONIC CONTROL SYSTEM IDENTIFICATION
| Transmission | EGS System |
|---|---|
| A4S 310R (THM-R1) | 4.XX |
| A4S 270Z (THM-R1) | 4.XX |
ELECTRONIC CONTROL SYSTEM IDENTIFICATION
ABBREVIATIONS
- A - Output.
- EGS - Electronic transmission control.
- AG - Automatic transmission.
- Brs - Brake signal.
- OK - Throttle valve.
- DKT - Signal line for throttle angle and engine temperature.
- DME - Digital motor electronics.
- DR - Pressure regulator.
- DZF - Output speed sensor.
- E - Economy.
- E - Input.
- KD - Kick-down.
- Lx - Conductor x.
- M - Manual.
- ME - Engine intervention/ignition angle intervention.
- MF - Microfiche.
- MV - Solenoid valve.
- MV-B - Solenoid valve brake band.
- n-ab - Output speed.
- n-Mot - Engine speed.
- PWM - Pulse width-modulated.
- R-Sperre - Reverse lock-out.
- RxD - Diagnostic link initiation.
- S - Sports.
- SG - Control unit.
- TD - Ignition measuring signal (speed diagnosis).
- ti - Injection signal (time injection).
- TR - Crankshaft reference (once per revolution - tacho rotation).
- TxD - Diagnostic link telegram.
- U-Batt - Battery voltage.
- U-Vers - Supply voltage.
- WK - Torque converter clutch.
FUNCTIONAL DESCRIPTION
The transmission control unit communicates with the following components
- Gear selector lever switch: Conductors L1 to L4.
- Program switch: S, E, M.
- Instrument cluster.
- Kick-down switch.
- Brake light switch (with PIN shift-lock only).
- Brake light test switch (with PIN shift-lock only).
- Lifting solenoid PIN shift-lock (with PIN shift-lock only).
- Solenoid valves: MV 1, MV 2, MV band, MV-WK.
- Pressure regulator.
- Oil sump temperature sensor.
- Road speed sensor.
- DME control unit.