Engine Control Module: Service and Repair

12 14 550 - Replacing control units (Digital Motor Electronics N73)





Necessary preliminary tasks:
- Read fault memory.

- Switch off ignition.

- Follow instructions for disconnecting and connecting battery Instructions for Disconnecting and Connecting Battery.

- Disconnect battery.

- Remove right fresh air duct Removing and Installing/Replacing Left or Right Fresh-Air Duct (Automatic A/C High).

Caution!
- Observe removal and installation of electronic control units Service and Repair.

Observe following instructions before replacing control unit:

- Program control unit Programming Control Unit (DME/DDE).

- Code control unit Coding Control Module (DME/DDE).





Release screw and remove holder (1).
Release screws and remove cover (2) from control unit box.

Note:
Release screws on seal (3) only when removing wiring harness.





Installation Note:
Insert tabs (1) in openings (2) and close cover.





Unlock and detach plug connections on DME control unit (3).

Installation Note:
Plug color: black.

Unlock and disconnect plug-in connections on DME 2 control unit (2).

Installation Note:
Plug color: gray.





Add final details to vehicle.
Check function of DME.