Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Digital Diesel Electronics Control Module X20009 Connector End View
2011 BMW X5 50iSECTION Digital Diesel Electronics Control Module X20009 Connector End View
Pin Assignments At Plug Connector X20009
| Pin | Type | Description/Signal type | Connection/Measuring notes |
|---|---|---|---|
| 1 | A | Activation Rail pressure control valve | Rail pressure control valve |
| 2 | A | Activation Volume control valve | Volume control valve |
| 3 | A | Activation Exhaust recirculation actuator | Exhaust recirculation actuator |
| 4 | A | Activation Exhaust recirculation actuator | Exhaust recirculation actuator |
| 5 | - | Not occupied | |
| 6 | A | 5 V supply | Low pressure EGR position sensor |
| 7 | M | Sensor ground | Low pressure EGR position sensor |
| 8 | E | Signal, temperature sensor | Temperature sensor before catalytic converter |
| 9 | M | Sensor ground | Temperature sensor before catalytic converter |
| 10 | E | Signal Temperature sensor before particulate filter | Temperature sensor before particulate filter |
| 11 | M | Sensor ground | Temperature sensor before particulate filter |
| 12 | M | Sensor ground | Differential pressure sensor, particulate filter |
| 13 | E | Signal Differential pressure sensor, particulate filter | Differential pressure sensor, particulate filter |
| 14 | A | 5 V supply | Differential pressure sensor, particulate filter |
| 15 | E | Signal Oil condition sensor | Oil condition sensor |
| 16 | - | Not occupied | |
| 17 | - | Not occupied | |
| 18 | A | Activation SCR metering module | SCR metering module |
| 19 | A | Activation Compressor bypass valve | Compressor bypass valve |
| 20 | A | Activation SCR metering module | SCR metering module |
| 21 | A | Activation Wastegate valve | Wastegate valve |
| 22 | - | Not occupied | |
| 23 | - | Not occupied | |
| 24 | A | Activation Electrical changeover valve, engine mount | Electrical changeover valve, engine mount |
| 25 | E | Signal Exhaust gas pressure sensor before turbine | Exhaust gas pressure sensor before turbine |
| 26 | M | Sensor ground | Temperature sensor after LP-EGR cooler |
| 27 | E | Signal Temperature sensor after LP-EGR cooler | Temperature sensor after LP-EGR cooler |
| 28 | - | Not occupied | |
| 29 | M | Sensor ground | Coolant temperature sensor |
| 30 | E | Signal Coolant temperature sensor | Coolant temperature sensor |
| 31 | E/A | Bus signal | Nitrogen oxide sensor in front of SCR catalytic converter |
| 32 | E/A | Bus signal | Nitrogen oxide sensor in front of SCR catalytic converter |
| 33 | A | Supply Rail pressure sensor | Rail pressure sensor |
| 34 | E | Signal, rail pressure sensor | Rail pressure sensor |
| 35 | M | Sensor ground | Rail pressure sensor |
| 36 | E | Cam sensor signal | Camshaft sensor |
| 37 | M | Sensor ground | Camshaft sensor |
| 38 | - | Not occupied | |
| 39 | - | Not occupied | |
| 40 | - | Not occupied | |
| 41 | - | Not occupied | |
| 42 | - | Not occupied | |
| 43 | - | Not occupied | |
| 44 | - | Not occupied | |
| 45 | - | Not occupied | |
| 46 | - | Not occupied | |
| 47 | A | Activation Turbine control valve | Turbine control valve |
| 48 | A | Signal, swirl flap actuator | Swirl flap actuator |
| 49 | - | Not occupied | |
| 50 | - | Not occupied | |
| 51 | - | Not occupied | |
| 52 | A | Supply Exhaust gas pressure sensor before turbine | Exhaust gas pressure sensor before turbine |
| 53 | E | Signal Low pressure EGR position sensor | Low pressure EGR position sensor |
| 54 | M | Sensor ground | Exhaust gas pressure sensor before turbine |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.