Engine Control Module: Service and Repair

CAUTION: Note instructions for removal and installation of electronic control unit! Service Precautions

- Switch off ignition.




- Unfasten screws.
- Remove cover from control unit box.




- Control unit (1) (DME 1), disconnect plug connection and remove control unit from bracket.

- Control unit (2) (DME 2): disconnect plug connection and remove control unit from bracket.

- Control unit (3) for Electronic Transmission Control (EGS).

- Control unit (4) for Electronic Engine Power Control (EPC).

NOTE:
Sensor wheel adaptation must be carried out after replacing a DME control unit or increment wheel. If only the increment wheel is replaced, the sensor-wheel adaptation must first be deleted (disconnect control unit from power supply for 5 minutes) Sensor wheel adaptation is implemented automatically as soon as the engine is operated in overrun condition for at least 10 seconds. Adjustments -- Refer to Sensor-Wheel Adaptation.