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 U
2011 BMW 128i Convertible (E88) L6-3.0L (N51)
Signal Names With U
2011 BMW 128i Convertible (E88) L6-3.0L (N51)SECTION Signal Names With U
Signal Names With U
U_30<1 Terminal 30, Engine Fuse 1
U_30<5 Terminal 30, Engine Fuse 5
U_AGR Supply, Exhaust-Gas Recirculation Controller
U_BDS Supply, Brake Vacuum Sensor
U_DIVOUT Voltage Output, Antenna Diversity
U_DKG Supply, Swirl-Valve Potentiometer
U_FWG1 Supply 1, Accelerator-Pedal Module
U_FWG2 Supply 2, Accelerator-Pedal Module
U_HR Switched Supply Via Main Relay
U_HR<1 Switched Supply Via Main Relay
U_HR<2 Switched Supply Via Main Relay
U_HR<3 Switched Supply Via Main Relay
U_HR<4 Switched Supply Via Main Relay
U_HR<5 Switched Supply Via Main Relay
U_KWG Pwr Supply, Crankshaft Sensor
U_LDF Supply Voltage, Charge-Air Pressure Sensor
U_MPOS Supply, Position Sensor, Steering Gear
U_NGS Supply, Zero-Gear Sensor
U_PADD Supply, Additive-Pressure Sensor
U_PDIFF Supply, Differential-Pressure Sensor, Particulate Filter
U_PKS Supply, Fuel-Pressure-Temperature Sensor
U_PWG1 Supply Voltage, Pedal-Position Sensor 1
U_PWG2 Supply Voltage, Pedal-Position Sensor 2
U_RDS Supply, Voltage, Rail Pressure Sensor
U_REF Supply, Reference
U_SDF Supply, Intake-Manifold Pressure Sensor
U_VVTR1 Switched Supply, Variable Valve Gear
U_VVTS1 Supply, Eccentric-Shaft Sensor
U_WHL Supply, Ultrasonic Sensor
U_WHML Supply, Ultrasonic Sensor
U_WHMR Supply, Ultrasonic Sensor
U_WHR Supply, Ultrasonic Sensor
U_WVL Supply, Ultrasonic Sensor
U_WVML Supply, Ultrasonic Sensor
U_WVMR Supply, Ultrasonic Sensor
U_WVR Supply, Ultrasonic 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.