Control module DDE 5.0

Important! Please observe when replacing a control module with which no communication was possible!

After the control module has been replaced and programd, injector volume calibration must be carried out. The codes of the injectors fitted on the vehicle must be stored on the new control module. To perform this operation, use service function ”Injector volume calibration”.

Introduction

The control module connector is a modular design consisting of two connector modules with a total of 154 pins.

• Connector module 1: 96 pins (interface with engine and injector wiring loom)
  
• Connector module 2: 58 pins (control module power supply and interface with vehicle wiring loom)
  

Supply voltages

The DDE control module supplies a number of sensors with a 5 V power supply as detailed below:

• Supply voltage 1: pedal-position sensor 1 (PWG), rail-pressure sensor
  
• Supply voltage 2: pedal-position sensor 2 (PGS), charge-air pressure sensor, air mass-flow meter
  
• Supply voltage 3: Crankshaft position/rpm sensor
  

DDE warning lamp activation

The DDE warning lamp is activated when the following faults occur:

• Pedal-position sensor
  
• Fuel rail pressure too high/too low
  
• Analogue-digital converter monitoring on DDE control module
  

Troubleshooting

The DDE control module is monitored for different internal faults.