Computer diagnostics of the diesel engine M51D25, DDE 2.1 on BMW E34

DDE 2.1 (M51D25) ECU identification dаta: BMW version 5G2, Bosch numbers 0281001295 / 2537355, EWS mode 2, with exhaust gas recirculation

ECU Identification

 

DDE 2.1 of the M51 engine with turbocharger and automatic transmission

 

  • BMW version number: 5G2
  • Injection start characteristic map: 2 | with exhaust gas recirculation
  • BMW software number: 2246280
  • Bosch identifier: 0281001295
  • Bosch software number: 2537355
  • Check number: 2246280
  • Manufacturing date: 563.30
  • EWS mode: 2

Stored Fault Codes

 

 1   Fuel delivery control device

 

 20   Cruise control switch panel

 

 41   Glow plug timing control

 

 

DDE 2.1 fault codes: 1 - fuel delivery control device, 20 - cruise control panel, 41 - glow plug control

Live Data

 

 47   Engine speed: 773 RPM

 

 21   Fuel quantity adjuster sensor: 2464 mV

 

 58   Injected fuel quantity: 2.0 mg/stroke

 

 56   Injection start:

 

  • actual value: 2.5° BTDC
  • specified value: 2.9° BTDC

 

 

DDE 2.1 main parameters: RPM 773, fuel adjuster sensor 2464 mV, injection 2.0 mg/stroke, injection start 2.5°

 

 

 37   Accelerator pedal position potentiometer: 0 % | 431 mV

 

 25   Idle pedal position switch: OFF

 

 

DDE 2.1 accelerator pedal dаta: potentiometer 0% (431 mV), idle switch OFF

 

 

 53   Engine coolant temperature sensor: 78 °C | 1568 mV

 

 52   Intake air temperature sensor: 23 °C | 4392 mV

 

 35   Fuel temperature sensor: 44 °C | 2862 mV

 

 

DDE 2.1 temperature sensor readings: coolant 78°C, intake air 23°C, fuel 44°C

 

 

 20   Cruise control switch panel: 4960 mV

 

 

DDE 2.1 cruise control panel signal: voltage 4960 mV

 

 

 54   Boost pressure sensor: 1007 hPa | 1764 mV

 

 57   Barometric pressure sensor: 1007 hPa

 

 60   Power supply: 14.2 V

 

 29   Vehicle speed: 0 km/h

 

 

DDE 2.1 pressure and power dаta: boost pressure 1007 hPa, barometric pressure 1007 hPa, supply 14.2V

 

 

 3   Electric fuel cut-off (ELAB): activated

 

 4   DDE warning lamp: not activated

 

 11   Pre-glow lamp: not activated

 

 8   Glow plug relay: OFF

 

 45   Anti-theft alarm system: ON

 

 

DDE 2.1 system states: ELAB cut-off activated, DDE and pre-glow lamps off, glow relay off

 

 

 26   Brake light switch: not activated

 

 31   Brake light test switch: not activated

 

 28   P/N position or clutch pedal switch: not activated

 

 44   A/C switch: not activated

 

 24   A/C compressor request from IHK system: not activated

 

 9   A/C compressor activation by DDE system: OFF

 

 

DDE 2.1 switch and A/C status: brake lights, P/N/clutch, A/C switch, IHK request - not active