A2249 Digital diesel electronics control unit

Connector overview

Number	X-pin, color	Description
X2411	9-pin, black	Connector Digital diesel electronics control unit Module 1
X2412	24-pin, black	Connector Digital diesel electronics control unit Module 2
X2413	52-pin, black	Connector Digital diesel electronics control unit Module 3
X2414	40-pin, black	Connector Digital diesel electronics control unit Module 4

Pin assignments at connector X2411

Pin	Type	Description / Signal type	Connection / Measuring notes
1	E	Voltage supply terminal 15/30	Fuse carrier, engine electronics

2		Not used

3		Not used

4	M	Ground	Ground splice

5	M	Ground	Ground splice

6	M	Ground	Ground splice

7		Not used

8	E	Voltage supply terminal 15/30	Fuse carrier, engine electronics

9	E	Activation of DDE main relay (HRL)	DDE relay

Pin assignments at connector X2412

Pin	Type	Description / Signal type	Connection / Measuring notes
1		Not used

2		Not used

3	E	CAN interface CAN-LOW (CAN-L)	AGS transmission control module

4	E	CAN interface CAN-HIGH (CAN-H)	AGS transmission control module

5		Not used

6	E	Data link TXD	AGS transmission control module

7		Not used

8	A	Electrical changeover valve for engine mount activation	Electrical changeover valve, engine mount

9	A	Supply, fuel pressure sensor	Presupply pressure sensor

10	M	Ground, fuel pressure sensor	Presupply pressure sensor

11		Not used

12		Not used

13		Not used

14		Not used

15		Not used

16	E	Back-up light signal (without AGS)	Reversing light switch

17	E	Signal, fuel pressure sensor	Presupply pressure sensor

18		Not used

19		Not used

20		Not used

21		Not used

22		Not used

23		Not used

24		Not used

Pin assignments at connector X2413

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Hot-film mass air flow sensor supply	Hot-film mass air flow sensor

2	E	Hot-film mass air flow sensor signal	Hot-film mass air flow sensor

3	M	Hot-film mass air flow sensor ground	Hot-film mass air flow sensor

4	E	Camshaft position sensor signal	Hall-effect sensor, camshaft 1

5		Not used

6	E	Signal Speed (rpm) sensor	Speed (rpm) sensor

7		Not used

8		Not used

9		Not used

10	E	Signal Changeover valve for exhaust gas recirculation (AGR)	Changeover valve for exhaust gas recirculation (AGR)

11		Not used

12	E	Signal Preheater relay	Preheater relay

13		Not used

14	A	Supply for boost pressure sensor	Boost pressure sensor

15	E	Signal Boost pressure sensor	Boost pressure sensor

16	M	Ground Boost pressure sensor	Boost pressure sensor

17	M	Camshaft position sensor ground	Hall-effect sensor, camshaft 1

18		Not used

19	M	Shield Speed (rpm) sensor	Speed (rpm) sensor

20	M	Ground Rail pressure sensor	Rail pressure sensor

21		Not used

22		Not used

23	A	Power Solenoid valve, supercharger control	Solenoid valve, supercharger control

24		Not used

25		Not used

26		Not used

27		Not used

28	E	Signal Dual temperature sensor	Dual temperature sensor

29	E	Signal Intake air temperature	Hot-film mass air flow sensor

30		Not used

31	M	Ground Speed (rpm) sensor	Speed (rpm) sensor

32	M	Ground Dual temperature sensor	Dual temperature sensor

33	E	Signal Rail pressure sensor	Rail pressure sensor

34		Not used

35	A	Power Rail pressure sensor	Rail pressure sensor

36		Not used

37		Not used

38	A	Power Rail pressure control valve	Rail pressure control valve

39		Not used

40	E	Signal Oil level sensor	Oil level sensor

41	E	Signal Oil pressure switch	Oil pressure switch

42		Not used

43		Not used

44		Not used

45		Not used

46		Not used

47		Not used

48		Not used

49		Not used

50	E	Charge indicator signal (terminal 61)	Generator

51	E	Start signal	Starter

52	E	Signal Preheater relay	Preheater relay

Pin assignments at connector X2414

Pin	Type	Description / Signal type	Connection / Measuring notes
1	A	Charge indicator signal (terminal 61)	Instrument cluster

2	A	Start signal	Instrument cluster Integrated instrument cluster control module (IKE)

3		Not used

4	E	Signal Electric fan	Electric fan

5		Not used

6		Not used

7	M	Ground Pedal position sensor	Pedal position sensor

8	E	Signal Pedal position sensor	Pedal position sensor

9	A	Power Pedal position sensor	Pedal position sensor

10	E	Signal Fuel pump relay	Fuel pump relay

11	A	Signal Oil pressure switch	Instrument cluster

12	M	Ground Pedal position sensor	Pedal position sensor

13	E	Signal Pedal position sensor	Pedal position sensor

14	A	Power Pedal position sensor	Pedal position sensor

15		Not used

16		Not used

17	A	Engine speed signal output (TD)	OBDII plug

18		Not used

19	E	Back-up light signal	Instrument cluster Integrated instrument cluster control module (IKE)

20		Not used

21	A	Signal Oil level sensor	Light module

22	A	Signal Right rear wheel speed sensor	ABS/DSC control module

23	E	Signal Clutch pedal position switch	Clutch pedal position switch

24	E	Brake light switch signal	Brake light switch

25		Not used

26	A	Voltage supply, terminal 15	Fuse F14

27	E	Data link MFL	Coil spring

28	E	Brake light test signal	Brake light switch

29	E	A/C compressor signal	Heating and A/C control module

30		Not used

31		Not used

32	A	Diagnosis signal TXD 2	OBDII plug

33	E	Signal, electronic immobilizer EWS (S-DWA)	Electronic immobilizer control unit (EWS)

34		Not used

35		Not used

36	E/A	CAN interface CAN-HIGH (CAN-H)	CAN link

37	E/A	CAN interface CAN-LOW (CAN-L)	CAN link

38	M	Ground	Coolant outlet temperature sensor

39	E	Signal	Coolant outlet temperature sensor

40		Not used