13 61 550 Removing And Installing/Replacing Control Unit For Direct Injection (N73)
Necessary Preliminary Tasks:
- Read fault memory.
- Switch off ignition.
- Follow instructions for disconnecting and connecting battery. Refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY
.
Disconnect battery.
IMPORTANT:
- Observe removal and installation of electronic control units. Refer to 12 00 ... INSTRUCTIONS FOR REMOVING AND INSTALLING ELECTRONIC CONTROL UNITS .
Observe following instructions before replacing control unit:
- Program control unit. Refer to 12 14 705 PROGRAMMING CONTROL UNIT (DME/DDE) .
- Code control unit.
Remove right fresh air duct. Refer to 64 31 056 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT FRESH-AIR DUCT (AUTOMATIC A/C HIGH) .
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:
Insert tabs (1) in openings (2) and close cover.
Unlock plug connections (6) on HDEV control unit (cylinders 1-6) and disconnect.
Installation:
Cable colors black.
Unlock plug connections (5) on HDEV control unit (cylinders 7-12) and disconnect.
Installation:
Cable colors red.
Assemble vehicle.
Check function of DME.