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 MANUALSBMW2011128I CONVERTIBLE (E88) L6-3.0L (N51)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULEDIAGRAMSDIAGRAM INFORMATION AND INSTRUCTIONSSIGNAL GLOSSARYSIGNAL NAMES WITH D
2011 BMW 128i Convertible (E88) L6-3.0L (N51)
Signal Names With D
2011 BMW 128i Convertible (E88) L6-3.0L (N51)SECTION Signal Names With D
Signal Names With D
D_BSD Signal, Bit Serial Data Interface
D_EWS Signal, Electronic Immobilizer
D_HZG1 Diagnosis Signal 1, Heating Module, Active Tank
D_HZG2 Diagnosis Signal 2, Heating Module, Active Tank
D_HZG3 Diagnosis Signal 3, Heating Module, Active Tank
D_TXD1 Diagnosis Signal
D_WHL Signal, Ultrasonic Sensor
D_WHML Signal, Ultrasonic Sensor
D_WHMR Signal, Ultrasonic Sensor
D_WHR Signal, Ultrasonic Sensor
D_WVL Signal, Ultrasonic Sensor
D_WVML Signal, Ultrasonic Sensor
D_WVMR Signal, Ultrasonic Sensor
D_WVR Signal, Ultrasonic Sensor
DFA_CAS Conditioned Wheel Speed For CAS
DFHL Wheel-Speed Sensor, Rear Left
DFHL+ Power Supply, Wh -Sp. Sensor, Rear Left
DFHR Wheel-Speed Sensor, Rear Right
DFHR+ Power Supply, Wh -Sp. Sensor, Rear Right
DFVL Wheel-Speed Sensor, Front Left
DFVL+ Power Supply, Wh. -Sp. Sensor, Front Left
DFVR Wheel-Speed Sensor, Front Right
DFVR+ Power Supply, Wh. -Sp. Sensor, Front Right
DIAG_LI Diagnosis Lead, Antenna Amplifier
DIAG_RE Diagnosis Lead, Antenna Amplifier
DIAG_HS Diagnosis Lead, Antenna Amplifier
DOSPUMP Signal, Metering Pump, SCR Tank System
DRS_IN Signal, Refrigerant Pressure Sensor
DRS+ Signal, Refrigerant Pressure Sensor
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.