DR_WK_interruption
Switch off ignition; Disconnect electronics incl. transmission cables; Connect transmission checking cables; Measure resistance of the proportional valve (pin 5 against pin 9), nominal value: 10...15 ohm; Measure resistance of the proportional valve against ground (pin 9 against ground (KL31) / housing), nominal value: > 10 Mohm; Check cable TCU -> transmission; If you find deviations from nominal value, check wiring and component;
What you'll see
No driver-visible symptom recorded.
System reaction
Activate "Central Solenoid Disconnection Unit";
Diagnostic depth
The total current of all current regulators is significantly lower than theoretically necessary Readback voltage is 0V Control frequency is lower than minimum permitted control frequency (f_act -> 0Hz); Current regulator indicates fault; AIM switched on or off
Increased fuel consumption;;