DDE 3.0 control unit

Troubleshooting

The following internal faults are monitored in the control unit:

• 11, DDE control unit (reference voltage)
  
• 40, DDE control unit (microcontroller)
  Consequence: Engine shuts down
  
• 42, DDE control unit (EEPROM and configuration)
  Consequence: Adjustment values are replaced by neutral values
  

The following faults will cause the DDE warning lamp to light up:

• Fault 13, DDE main relay
  
• Fault 25, Pedal-travel sensor
  
• Fault 41, Injection pump, solenoid shut-off valve