A2249 Digital diesel electronics control unit

Plug connector overview

NumberX-pin, colourDescription
X24119-pin, blackPlug connector Digital diesel electronics control unit Module 1
X241224-pin, blackPlug connector Digital diesel electronics control unit Module 2
X241352-pin, blackPlug connector Digital diesel electronics control unit Module 3
X241440-pin, blackPlug connector Digital diesel electronics control unit Module 4

Pin assignments at plug connector X2411

PinTypeDescription / Signal typeConnection /
Measuring notes
1EVoltage supply terminal 15/30Fuse carrier, engine electronics
   
2 Not used 
   
3 Not used 
   
4MGroundGround connector
   
5MGroundGround connector
   
6MGroundGround connector
   
7 Not used 
   
8EVoltage supply terminal 15/30Fuse carrier, engine electronics
   
9EActivation of DDE main relay (HRL)DDE relay
   

Pin assignments at plug connector X2412

PinTypeDescription / Signal typeConnection /
Measuring notes
1 Not used 
   
2 Not used 
   
3ECAN interface CAN-LOW (CAN-L)AGS transmission control unit
   
4ECAN interface CAN-HIGH (CAN-H)AGS transmission control unit
   
5 Not used 
   
6EDiagnostic link TXDAGS transmission control unit
   
7 Not used 
   
8AElectrical changeover valve for engine mount activationElectrical changeover valve, engine mount
   
9ASupply, fuel pressure sensorPresupply pressure sensor
   
10MGround, fuel pressure sensorPresupply pressure sensor
   
11 Not used 
   
12 Not used 
   
13 Not used 
   
14 Not used 
   
15 Not used 
   
16EReversing light signal (without AGS)Reversing light switch
   
17ESignal, fuel pressure sensorPresupply 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 plug connector X2413

PinTypeDescription / Signal typeConnection /
Measuring notes
1AHot-film air mass meter supplyHot-film air mass meter
   
2ESignal, hot-film air mass meterHot-film air mass meter
   
3MGround, hot-film air mass meterHot-film air mass meter
   
4ESignal, camshaft sensorHall-effect sensor, camshaft 1
   
5 Not used 
   
6ESignal Speed (rpm) sensorSpeed (rpm) sensor
   
7 Not used 
   
8 Not used 
   
9 Not used 
   
10ESignal Changeover valve for exhaust gas recirculation (AGR)Changeover valve for exhaust gas recirculation (AGR)
   
11 Not used 
   
12ESignal Preheater relayPreheater relay
   
13 Not used 
   
14ASupply for boost pressure sensorBoost pressure sensor
   
15ESignal Boost pressure sensorBoost pressure sensor
   
16MGround Boost pressure sensorBoost pressure sensor
   
17MCamshaft sensor groundHall-effect sensor, camshaft 1
   
18 Not used 
   
19MShield Speed (rpm) sensorSpeed (rpm) sensor
   
20MGround Rail pressure sensorRail pressure sensor
   
21 Not used 
   
22 Not used 
   
23ASupply Solenoid valve, supercharger controlSolenoid valve, supercharger control
   
24 Not used 
   
25AActivation Electric changeover valve, swirl flapsElectric changeover valve, swirl flaps
   
26 Not used 
   
27 Not used 
   
28ESignal Dual temperature sensorDual temperature sensor
   
29ESignal Intake air temperatureHot-film air mass meter
   
30 Not used 
   
31MGround Speed (rpm) sensorSpeed (rpm) sensor
   
32MGround Dual temperature sensorDual temperature sensor
   
33ESignal Rail pressure sensorRail pressure sensor
   
34 Not used 
   
35ASupply Rail pressure sensorRail pressure sensor
   
36 Not used 
   
37 Not used 
   
38ASupply Rail pressure control valveRail pressure control valve
   
39 Not used 
   
40ESignal Oil level sensorOil level sensor
   
41ESignal Oil pressure switchOil 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 
   
50EBattery charge indicator lamp signal (terminal 61)Alternator
   
51EStart signalStarter
   
52ESignal Preheater relayPreheater relay
   

Pin assignments at plug connector X2414

PinTypeDescription / Signal typeConnection /
Measuring notes
1ABattery charge indicator lamp signal (terminal 61)Instrument cluster
   
2AStart signalInstrument cluster Integrated electronic control unit (IKE)
   
3 Not used 
   
4ESignal Electric fanElectric fan
   
5 Not used 
   
6 Not used 
   
7MGround Pedal position sensorPedal position sensor
   
8ESignal Pedal position sensorPedal position sensor
   
9ASupply Pedal position sensorPedal position sensor
   
10ESignal Fuel pump relay 1Fuel pump relay 1
   
11ASignal Oil pressure switchInstrument cluster
   
12MGround Pedal position sensorPedal position sensor
   
13ESignal Pedal position sensorPedal position sensor
   
14ASupply Pedal position sensorPedal position sensor
   
15 Not used 
   
16 Not used 
   
17AEngine speed signal output (TD)Diagnostic connector
   
18 Not used 
   
19EReversing light signalInstrument cluster Integrated electronic control unit (IKE)
   
20 Not used 
   
21ASignal Oil level sensorLight module
   
22ASignal Rear right wheel speed sensorABS/ASC control unit ABS/DSC control unit
   
23ESignal Clutch switchClutch switch
   
24EBrake light switch signalBrake light switch
   
25 Not used 
   
26AVoltage supply, terminal 15Fuse F14
   
27EData link MFLCoil spring
   
28EBrake light test signalBrake light switch
   
29EA/C compressor signalHeating and A/C control module
   
30 Not used 
   
31 Not used 
   
32 Not used 
   
33ESignal, electronic immobilizer EWS (S-DWA)Electronic immobilizer control unit (EWS)
   
34 Not used 
   
35 Not used 
   
36E/ACAN interface CAN-HIGH (CAN-H)CAN link
   
37E/ACAN interface CAN-LOW (CAN-L)CAN link
   
38MGroundCoolant outlet temperature sensor
   
39ESignalCoolant outlet temperature sensor
   
40 Not used