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.
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HOMESERVICE MANUALSBMW2011750LI BASE, 4.4 CREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSHYBRID SERVICE DISABLE PROCEDURESDESCRIPTIONTERMINAL 15 (WAKE-UP LINE)
2011 BMW 750Li Base, 4.4 C
Terminal 15 (Wake-Up Line)
2011 BMW 750Li Base, 4.4 CSECTION Terminal 15 (Wake-Up Line)
There are two lines for terminal 15 between the DDE control unit and CAS/FEM control unit:
- 15_WUP: This signal serves as a wake-up signal for the DDE control unit
- 15_3: Via this signal the CAS/FEM control unit can switch off the injector control of the DDE control unit in situations that are critical to safety
NOTE:
The following faults are monitored in the engine control unit: The signal transmission via the lines and the internal switches in the DDE control unit and in the CAS/FEM control unit are monitored by the DDE.
RENDER: 1.0x
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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.