Diagram sections — 33 (95 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS NAVIGATION POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Automatic A/C Wiring Diagram (1 of 2) for BMW 128i 2012 List of elements for Automatic A/C Wiring Diagram (1 of 2) for BMW 128i 2012: 64 (3.0l twin turbo) a/c compressor control valve (right rear of engine compt) x6454 3.0l 3.0l twin turbo 30g sply 5v sply A/c compressor control valve (3.0l) Air distribution micro switch (on hvac unit) Auc sensor (right rear of engine compt) Auxiliary water pump (left rear of engine compt) Blower motor (on hvac unit) Blower output stage Blower sig Can bus sig Center console switch center Computer data lines system Condensation sensor (center of windshield) Convertible top module (behind left rear seat) Coolant pressure sensor (right front of engine compt) Electronics junction box Evaporator temperature sensor (on hvac unit) Footwell temperature sensor (on hvac unit) Fuse 10a Fuse 40a Fuse 5a Gnd Heating/air conditioning system (center of dash, above radio) Hot at all times Hot w/ terminal 15 relay energized Hot w/ terminal 30g relay energized Junction box (under right side of dash) Lighting sig Lin bus sig Mixing air control Nca Red Roof function control center Sens gnd Sens sig Sens sply Solar sensor (top center of dash) Stepper gnd Stepper sply Sw center sig Ventilation temperature sensor (on hvac unit) Volt sply Water valve (left side of auxiliary water pump) X01198 X01199 X04010 X10012 X10254 X11001 X11011 X14270 X14271 X14272 X14286 X14288 X165 (left side of engine compt) X490 X6011 X608 X6454 (right rear of engine compt) Automatic A/C Wiring Diagram (2 of 2) for BMW 128i 2012 List of elements for Automatic A/C Wiring Diagram (2 of 2) for BMW 128i 2012: 55 3.0l 3.0l twin turbo Activation Air distribution flap motor (on hvac unit) Can hi Can low Characteristic map thermostat (rear of engine) Computer data lines system Defroster flap motor (on hvac unit) Dme control module (right rear of engine compt) Electric coolant pump (rear of engine) Electric fan (front of engine compt) Electric fan 400 watt Electric fan 600 watt Electric fan cut out relay Engine coolant temperature sensor (rear of engine) Footwell flap motor (on hvac unit) Fresh air/recirculated air flap motor (on hvac unit) Fuse 10a Fuse 30a Fuse 50a Fuse 5a Fuse 60a 50a Hot at all times Hot w/ dme relay energized Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left mixed air flap motor (on hvac unit) Mixer flap motor (on hvac unit) Radiator shutter driver (3.0l) (on radiator grille assembly) Radiator shutter solenoid Red Right mixed air flap motor (on hvac unit) Sens gnd Sens sig Sig Ventilation flap motor (on hvac unit) X10647 X11002 X11003 X11004 X11005 X11011 X166 (right side of engine compt) X490 X60001 X60002 X60003 X60007 X6041 X60552 X60571 X62790 X6455 (right side of engine coolant pump) X8683
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram for BMW 128i 2012 List of elements for Anti-lock Brakes Wiring Diagram for BMW 128i 2012: 61 (not used) Active steering (if equipped) (behind left front wheel) Brake fluid level switch (left rear of engine compt) Brake light switch (under left side of dash) Brk fld lvl Brk light Car access system (under left side of dash) Computer data lines system Cond whl spd Dme control unit (right rear of engine compt) Dsc sens Dsc sensor (under driver's seat) Dsc sensor 2 Dynamic stability control (dsc) (left rear of engine compt) Electronics junction box Exterior lights system F-can high F-can-low Fuse 30a Fuse 40a Fuse 5a Ground Hazard warning switch Hot at all times Hot w/ term 30g relay energized Junction box (under right side of dash) Left front brake pad wear sensor (behind left front wheel) Left front wheel speed sensor (front of left front wheel) Left rear wheel speed sensor (behind left rear wheel) Lf brk pad Lf whl out Lf whl spd Lr whl spd Nca Parking brake warning switch (under center console) Parking brk Pt can high Pt can low Red Rf brk pad Rf whl out Rf whl spd Right front wheel speed sensor (front of right front wheel) Right rear brake pad wear sensor (front of right rear wheel) Right rear wheel speed sensor (behind right rear wheel) Rr brk pad Rr whl out Rr whl spd Steering column switch cluster Telephone transceiver (center of rear compt) Terminal 30 Terminal 30g W/ navigation W/o navigation Wake up X1108 (under left side of dash) X14133 X170 (left side of engine compt) X1880 X60001 X9331
ANTI-THEFT Access/Start Wiring Diagram (1 of 2) for BMW 128i 2012 List of elements for Access/Start Wiring Diagram (1 of 2) for BMW 128i 2012: 80 (under left side of dash) x1108 (under left side of dash) x173 3.ol 3.ol twin turbo A/t Aerial diversity (bottom center of rear window) Anti-lock brakes system Brake lght Brake light switch (under left side of dash) Car access system (under left side of dash) Center isg Clutch switch module (under left side of dash) Computer data lines system Convertible Coupe Dc/dc converter (right rear of engine compt) Dme control module (right rear of engine compt) Ecu Elec str + Elec str - Electric steering column adjustment (behind steering wheel) Electronic interior rear view mirror Eng strt sig Exterior lights system Fbd receiver Footwell module (under left side of dash) Fuse f36 40a Fuse f55 5a Fuse f61 5a Ground Hood contact switch (left rear of engine compt) Hot at all times Immob sig Interlck sens Junction box (under right side of dash) K can h K can l Lid contact M/t Multiple restraint system control unit (rear of center console) Nca Pa bus Rear lid sig Red Remote control receiver Rmte cntrl sig Seat occupancy detector (under front passenger's seat) Starting/charging system Tcu Tele sig Term 15 sig Term 30 Term 30g Term 50 sig Term r Term r sig Terminal 30g relay Terminal relay Trans sig Transmission control module Transmissions system Trunk, tailgate, fuel doors system Wake up Wheel spd sig X10254 X11004 X11007 X11010 X1108 (under left side of dash) X13376 X14133 X14261 X14271 X173 (under left side of dash) X18069 X279 X60001 X6031 X8500 X9331 Access/Start Wiring Diagram (2 of 2) for BMW 128i 2012 List of elements for Access/Start Wiring Diagram (2 of 2) for BMW 128i 2012: 18 Car access system (under left side of dash) Comfort access control module (right side of rear compt) Computer data lines system Driver's side outer door handle electronic module Front inner antenna center console Passenger's side outer door handle electronic module Rear bumper aerial Rear inner antenna luggage compartment Rear interior antenna center console Red Slide-in compartment Start-stop button X10318 X173 (under left side of dash) X256 X257 X490 X494 (coupe) x498 (convertible) (coupe: right rear side of interior panel) (convertible: right side of rear compt) Anti-theft Wiring Diagram (1 of 3) for BMW 128i 2012 List of elements for Anti-theft Wiring Diagram (1 of 3) for BMW 128i 2012: 33 (right rear side of interior panel) x494 Aerial diversity (bottom center of rear window) Boot lid button Car access system (under left side of dash) Computer data lines system Convertible Coupe Driver's door system lock (left front door) Electrochromic interior rear Fbd receiver Footwell module (under left side of dash) Fuse f72 15a Fuse f73 15a Glove compartment central locking drive unit (convertible) Hazard warning switch Hood contact switch (left rear of engine compt) Hot at all times Hotel switch Interior lights system Junction box (under right side of dash) Junction box ecu Remote control receiver View mirror X04010 X1108 (under left side of dash) X13376 X14261 X14270 X14271 X14272 X173 (under left side of dash) X1o254 X257 Anti-theft Wiring Diagram (2 of 3) for BMW 128i 2012 List of elements for Anti-theft Wiring Diagram (2 of 3) for BMW 128i 2012: 21 (center of roof) interior movement detector Center roof function control Convertible Coupe Fuel filler flap central locking drive (right side of rear compt) Fuse f54 7.5a Hot at all times Interior lights system Junction box (under right side of dash) Passenger compartment central locking drive (convertible) Passenger's door system lock Rear lid release switch (interior) Siren & tilt alarm sensor X11007 X1108 (under left side of dash) X14286 X14288 X14289 X151 (left side of rear compt) X256 X490 Anti-theft Wiring Diagram (3 of 3) for BMW 128i 2012 List of elements for Anti-theft Wiring Diagram (3 of 3) for BMW 128i 2012: 20 (convertible) siren w/ tilt alarm sensor Anti- theft alarm led Boot lid central locking drive Computer data lines system Convertible Coupe Driver's door microwave sensor Electrochromic interior rear view mirror Fuse f63 5a Hot at all times Interior lights system Junction box (under right side of dash) Passenger's door microwave sensor Power distribution system Right rear microwave sensor X11008 X151 (left side of rear compt) X256 X257 X498 (right side of rear compt)
BODY CONTROL MODULES Body Control Modules Wiring Diagram (1 of 2) for BMW 128i 2012 List of elements for Body Control Modules Wiring Diagram (1 of 2) for BMW 128i 2012: 54 Bi-xenon activation Brake ind Can-h Can-l Center brake light Computer data lines system Exterior lights system Fog light Fog light sig Footwell module (under left side of dash) Fr level sens sig Fr side mark light sig Fuse 40a Ground Hazard flasher sw sig Hazard sw sig Hdlt pwr sply Headlights system Height ctrl sig Hi beam sig High beam sw sig Hot at all times Interior lights Interior lights system Junction box (under right side of dash) K-bus sig Led sig Left headlamp sig Lf dir ind Lf inner tail sig Lh dir ind light sig Lin bus sig Low beam sig Low beam sw sig Mirrors system Parking light sig Power windows system Rear fog light sig Rear level sens sig Red Reverse light sig Rh aux dir ind light Rh dir ind light sig Rh inner tail sig Ride height sens gnd Right headlamp sig Rr dir ind Sw lighting sig Term 58g Terminal 30 X11009 X1108 (under left side of dash) X14259 X14260 Body Control Modules Wiring Diagram (2 of 2) for BMW 128i 2012 List of elements for Body Control Modules Wiring Diagram (2 of 2) for BMW 128i 2012: 50 Anti-theft system Brake lght sw sig Central locking sig Door contact sig Door locks system Driv close pwr wind mtr Driv courtesy light Driv open pwr wind mtr Driv pwr window Exterior lights system Fog light Fog light sig Footwell module (under left side of dash) Fr pass courtesy light Fr pass pwr window Fr pass window closed Fr pass window open Fuse 30a Fuse 40a Ground Headlights system Hi beam sig Hot at all times Interior light sw sig Interior lights system Junction box (under right side of dash) Lf aux dir ind light Lf inner tail ind License plate light Low beam sig Lr dir ind sig Parking light sig Pass pwr window Power windows system Pwr window sw sig Red Reverse lght sig Reverse sig Rf dir ind sig Rh inner tail ind Term 30 Term 58g sig Terminal 15 Terminal 30 Unlock cen locking sig X10012 X11005 X11009 X14261 X173 (under left side of dash)
COMPUTER DATA LINES Computer Data Lines Wiring Diagram (1 of 2) for BMW 128i 2012 List of elements for Computer Data Lines Wiring Diagram (1 of 2) for BMW 128i 2012: 59 (not used) (under left side of dash) 3.0l 3.0l & 3.0l twin turbo a/t 3.0l twin turbo Active steering (behind left front wheel) Battery sensor (right side of rear compt) Can h Can l Car access system Center roof function control Comfort access control module (right side of rear compt) Controller Convertible top module (behind left rear seat) Dme control module (right rear of engine compt) Dsc sensor (under driver's seat) Dsc sensor 2 Dynamic stability control (dsc) (left rear of engine compt) Electronics junction box Footwell module (under left side of dash) Fuel pump control (ekps) Fuse f74 5a Gear selector switch Hot at all times Junction box (under right side of dash) Left front seat module (under driver seat) Longitudinal dynamics management (left side of dash) Nca Park distance control (pdc) (right side of rear compt) Radio (w/ radio) ccc/m-ask (w/o radio) Red Right front seat module (under front passenger's seat) Td sig Trailer module (right side of rear compt) Transmission control Wake up X013709 X10387 X1276 X13354 X13376 X13663 X13709 X13718 X13812 X14260 X14270 X14271 X14282 X14296 X1716 X18303 X275 X279 X300 X490 X60001 X6011 X6021 Computer Data Lines Wiring Diagram (2 of 2) for BMW 128i 2012 List of elements for Computer Data Lines Wiring Diagram (2 of 2) for BMW 128i 2012: 27 (under left side of dash) Active cruise control (center of front bumper) Can h Can l Car information computer (cic) Central information display Control unit Electronics junction box Heating/air conditioning system (center of dash, above radio) Instrument cluster Junction box (under right side of dash) Multiple restraint system control unit (rear of center console) Obdii socket Red Steering column switch cluster Transfer box control unit (3.0l twin turbo) (under carpet, on right side footwell) Wake up X10594 X1108 X11587 X13812 X13822 X14271 X14272 X173 X1783 X608
COOLING FAN Cooling Fan Wiring Diagram for BMW 128i 2012 List of elements for Cooling Fan Wiring Diagram for BMW 128i 2012: 47 3.0l 3.0l twin turbo Activation Can hi Can low Characteristic map thermostat (rear of engine) Computer data lines system Dme control module (right rear of engine compt) Electric coolant pump (rear of engine) Electric fan (front of engine compt) Electric fan 400 watt Electric fan 600 watt Electric fan cut out relay Engine coolant temperature sensor (rear of engine) Fuse 10a Fuse 30a Fuse 50a Fuse 50a 60a Fuse 5a Hot at all times Hot w/ dme relay energized Hot w/ terminal 30g relay energized Junction box (under right side of dash) Radiator shutter driver (3.0l) (on radiator grille assembly) Radiator shutter solenoid Red Sens gnd Sens sig Sig X10647 X11002 X11003 X11004 X11005 X11011 X166 (right side of engine compt) X490 X60001 X60002 X60003 X60007 X6041 X60552 X60571 X62790 X6455 (right side of engine coolant pump) X8683
CRUISE CONTROL Cruise Control Wiring Diagram for BMW 128i 2012 List of elements for Cruise Control Wiring Diagram for BMW 128i 2012: 57 (left rear of engine compt) (if equipped) dynamic stability control (dsc) 3.0l 3.0l twin turbo Accelerator pedal module (part of accelerator pedal) Active cruise control (if equipped) (center of front bumper) Anti-theft system Br light sig Br light test sig Brake light switch (under left side of dash) Car access system (under left side of dash) Clutch pos sig Clutch switch module (under left side of dash) Computer data lines system Dme control module (right rear of engine compt) Electric throttle valve (left side of engine) Electronics junction box Exterior lights system Fuse 10a Fuse 30a Fuse 5a Gnd Hot at all times Hot w/ dme relay energized Hot w/ terminal 30g relay energized Junction box (under right side of dash) Longitudinal dynamics management (left side of dash) Pos sens Pos sens sig Pos sens sply (+) Pos sens sply (-) Pt can high Pt can low Red Sig Sply(+) Sply(-) Steering column switch cluster Term 87 Throttle act Throttle val sens X04010 X11003 X11005 X11008 X1108 (under left side of dash) X13376 X14271 X14272 X166 (right side of engine compt) X18303 X1880 X60001 X60002 X60003 X60005 X6011 X6454 (right rear of engine compt)
DEFOGGERS Heated Mirrors Wiring Diagram for BMW 128i 2012 List of elements for Heated Mirrors Wiring Diagram for BMW 128i 2012: 17 Computer data lines system Driver's side outside Electronics junction box Fuse 30a Hot at all times Junction box (under right side of dash) Mirror Nca Passenger's side outside mirror Red X04010 X14270 X14271 X173 (under left side of dash) X256 X257 X490 Rear Defogger Wiring Diagram for BMW 128i 2012 List of elements for Rear Defogger Wiring Diagram for BMW 128i 2012: 27 (info not available) Convertible Coupe Fuse 250a Fuse f47 30a Heated rear window relay Heating/air conditioning system (center of dash, above radio) Hot at all times Junction box (under right side of dash) Junction box electronics Left boot lid resistor Nca Rear fuse holder (right side of rear compt) Rear window defogger Rear window defogger (ground) lockout circuit Rear window defogger (positive) lockout circuit Red Right boot lid resistor X04010 X10209 X11006 X13020 X14272 X379 X380 X494 (right rear side of interior panel) X608
ELECTRONIC POWER STEERING Active Power Steering Wiring Diagram for BMW 128i 2012 List of elements for Active Power Steering Wiring Diagram for BMW 128i 2012: 34 Active steering (behind left front wheel) Can-bus Computer data lines system Eco valve (under starter) Eco vlv sig Electric lock (on steering motor assembly) Fuse 40a Gnd Hot w/ terminal 30g relay energized Junction box (under right side of dash) Nca Pos sig Red Sens gnd Sig lock + Sig lock - Sol vlv Sol vlv sig Steering gear (on steering rack assembly) Steering gnd Steering sig Temp sens Wake-up sig X11006 X11335 X120 X13718 X13719 X13720 X13772 X13773 X14036 X14234 X165 (left side of engine compt) Electronic Power Steering Wiring Diagram for BMW 128i 2012 List of elements for Electronic Power Steering Wiring Diagram for BMW 128i 2012: 18 Can h Can l Computer data lines system Electronic power steering (eps) (under vehicle, near right front wheel) Fuse 100a Ground Hot at all times Rear fuse holder (right side of rear compt) Red Steering torque sensor (under vehicle) Term 30 Torq sig Wake up sig X01188 X10004 X1703 X60233 X60234
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram for BMW 128i 2012 List of elements for Electronic Suspension Wiring Diagram for BMW 128i 2012: 12 Computer data lines system Footwell module (under left side of dash) Front ride height sensor (behind left front wheel) Fuse 10a Hot w/ terminal 30g relay energized Junction box (under right side of dash) Longitudinal dynamics management (left side of dash) Power distribution system Rear ride height sensor (front of right rear wheel) Red X11008 X1108 (under left side of dash)
ENGINE PERFORMANCE
3.0L 3.0L, Engine Performance Wiring Diagram (1 of 4) for BMW 128i 2012 List of elements for 3.0L, Engine Performance Wiring Diagram (1 of 4) for BMW 128i 2012: 54 (right rear side of interior panel) x494 (under right rear seat) electric fuel pump Acc pdl (+) Acc pdl gnd Acc pdl sig Air pmp (+) Anti- theft system Anti-lock brakes system Anti-theft system Brake vacuum pressure sensor (left rear of engine compt) Brk lght sig Bsd sig Can h Can l Clutch sw Computer data lines system Cooling fans system Crankshaft breather heating 1 (left side of engine) Dme control module (right rear of engine compt) Elec fan sig Exh flap sig Fuel pump control (ekps) Fuse 20a Hot at all times Junction box (under right side of dash) Junction box electronics Leak diag sig Nca Oxygen sensor 2 after catalytic converter Oxygen sensor 2 before catalytic converter (right rear of engine) Oxygen sensor after catalytic converter Oxygen sensor before catalytic converter (on exhaust pipe, before catalytic) Radiator outlet temperature sensor (right side of engine) Red Rr spd sig Sensor gnd Sensor sig Sensor sog Start sig Starting/charging system Td sig Terminal 30g relay Veh immob sig X11008 X11010 X13663 X14271 X3507 X60001 X60002 X6041 X60531 X60551 X6454 (right rear of engine compt) 3.0L, Engine Performance Wiring Diagram (2 of 4) for BMW 128i 2012 List of elements for 3.0L, Engine Performance Wiring Diagram (2 of 4) for BMW 128i 2012: 36 (part of accelerator pedal) accelerator pedal module (under left side of dash) brake light switch (under left side of dash) x1108 Anti- theft system Antitheft system Clutch switch module (m/t) (under left side of dash) Crankshaft position sensor (left rear of engine) Disa controller 1 (top left of engine) Disa controller 2 (top left of engine) Dme relay Exhaust flap (left side of rear compt) Exterior lights system Fuel tank leakage diagnostic module Fuel tank vent valve Fuse 10a Fuse 20a Fuse 250a Fuse 30a Hot at all times Hot film-mass flow sensor Intake air temperature sensor Junction box (under right side of dash) Nca Oil condition sensor (rear of engine, near transmission) Rear fuse holder (right side of rear compt) Red Starting/ charging system X10209 X11001 X11005 X11010 X1108 (under left side of dash) X13020 X6011 X60551 X6454 (right rear of engine compt) 3.0L, Engine Performance Wiring Diagram (3 of 4) for BMW 128i 2012 List of elements for 3.0L, Engine Performance Wiring Diagram (3 of 4) for BMW 128i 2012: 41 (top of engine) fuel injector Bsd sig Cyl 1-3 Cyl 4-6 Disa sig Dme control module (right rear of engine compt) Dme rly Double knock sensor (left side of engine) Electric throttle- valve actuator Engine breather heater 2 Engine breather heater 3 Engine breather heater 4 Engine breather heating relay Engine electronics fuse carrier (right plenum chamber e-box) Fuse 50a Fuse 5a Heat rly Hot at all times Intake- manifold pressure sensor (top rear of engine) Nca Neutral sensor Press sens Red Sensor (+) Sensor gnd Sensor sig Sig Tank sig Throttle (-) Throttle gnd Throttle sig W/ hot film-mass flow sensor W/ intake air temperature sensor W/ neutral sensor W/o intake air temperature sensor X60005 X60531 X6454 (right rear of engine compt) X65399 X8682 X8685 3.0L, Engine Performance Wiring Diagram (4 of 4) for BMW 128i 2012 List of elements for 3.0L, Engine Performance Wiring Diagram (4 of 4) for BMW 128i 2012: 56 (lower right side of engine) oil pressure control valve (rear of engine) electric coolant pump (right rear of engine compt) vvt relay (right side of engine) variable valve timing gear actuator (top of engine) ignition coil Bsd sig Characteristic map thermostat (rear of engine) Cooling fans system Dme control module (right rear of engine compt) Eccentric shaft sensor (top of engine) Engine coolant temperature sensor (rear of engine) Exhaust camshaft sensor (front of engine) Exhaust vanos solenoid valve (front of engine) Ground Ign 1 sig Ign 2 sig Ign 3 sig Ign 4 sig Ign 5 sig Ign 6 sig Inj 1 sig Inj 2 sig Inj 3 sig Inj 4 sig Inj 5 sig Inj 6 sig Intake camshaft sensor (front of engine) Intake vanos solenoid valve (front of engine) Interference suppression capacitor for ignition coils Nca Oil pressure switch (left side of engine compt) Oil sw sig Red Sensor (+) Sensor 1 gnd Sensor 1 sig Sensor 2 gnd Sensor 2 sig Sensor gnd Sensor sig Shield Spark plug Term 30 Term 87 Thermo sig Vanos (+) Var gear sig Vvt rly X60003 X60004 X60006 X60007 X6011 X60552 X6177 X6454 (right rear of engine compt)
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for BMW 128i 2012 List of elements for Backup Lamps Wiring Diagram for BMW 128i 2012: 28 Backup light switch (m/t) Computer data lines system Footwell module (under left side of dash) Fuse f41 30a Fuse f81 30a Fuse f84 40a Fuse f86 40a Hot at all times Junction box (under right side of dash) Left taillight Red Reverse Right taillight Transmission control (a/t) X10012 X11005 X11009 X1108 (under left side of dash) X14260 X14261 X151 (left side of rear compt) X173 (under left side of dash) X338 X339 X494 (coupe) (right rear side of interior panel) X498 (convertible) (right side of rear compt) X6011 X6454 (right rear of engine compt) Exterior Lamps & Trailer Connector Wiring Diagram (1 of 3) for BMW 128i 2012 List of elements for Exterior Lamps & Trailer Connector Wiring Diagram (1 of 3) for BMW 128i 2012: 37 (under left side of dash) x1108 30g relay energized Footwell module (under left side of dash) Fuse f31 30a Fuse f32 30a Fuse f41 30a Fuse f71 20a Fuse f81 30a Fuse f84 40a Fuse f86 40a Hot at all times Hot w/ bi-stable relay energized Hot w/ terminal Junction box (under right side of dash) Junction box electronics Left front direction indicator light repeater Left license plate light Red Right front direction indicator light repeater Right headlight Right license plate light Side Turn X10012 X11004 X11005 X11008 X11009 X14259 X14260 X14261 X14272 X165 (left side of engine compt) X166 (right side of engine compt) X173 (under left side of dash) X494 (coupe) (right rear side of interior panel) X498 (convertible) (right side of rear compt) Exterior Lamps & Trailer Connector Wiring Diagram (2 of 3) for BMW 128i 2012 List of elements for Exterior Lamps & Trailer Connector Wiring Diagram (2 of 3) for BMW 128i 2012: 21 (right side of rear compt) (convertible) x498 x494 (coupe) (right rear side of interior panel) Af interference suppressor filter (left side of rear window panel) Auxiliary brake light Backup lamps circuit Brake Brake (w/ xenon) Fog Hazard warning switch Left taillight Park Reverse Right taillight Turn X151 (left side of rear compt) X30055 X318 X319 X338 X339 X494 (coupe) (right rear side of interior panel) X498 (convertible) (right side of rear compt) Exterior Lamps & Trailer Connector Wiring Diagram (3 of 3) for BMW 128i 2012 List of elements for Exterior Lamps & Trailer Connector Wiring Diagram (3 of 3) for BMW 128i 2012: 22 (3.0l twin turbo) (3.0l) (left rear of engine compt) dynamic stability control (dsc) (under left side of dash) brake light switch (under left side of dash) car access system Computer data lines system Digital motor electronics (dme) control module Direction indicator/ high beam headlight switch Left headlight Light switch unit Side Steering column switch cluster Trailer module (right side of rear compt) Trailer socket Turn X1108 (under left side of dash) X1276 X13376 X165 (left side of engine compt) X1880 X498 (right side of rear compt) X60001
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 4) for BMW 128i 2012 List of elements for Ground Distribution Wiring Diagram (1 of 4) for BMW 128i 2012: 54 (3.0l twin turbo) engine breather heater 1 (convertible) convertible top module (under right side of dash) junction box (w/ memory) (w/o memory) Active steering Af interference suppressor filter Auxiliary water pump Battery Battery sensor Blower output stage Dc/dc converter Electric fan cut-out relay Electronic power steering (eps) Electronics junction box Front interior/ reading lamp Left fog light Left front direction indicator repeater light Left headlight Left heated water jet Left horn Left taillight Nca Passenger's door entrance light Passenger's door power window switch Passenger's door system lock Passenger's lumbar support switch Passenger's seat backrest width adjustment valve block Passenger's seat heating module Passenger's seat vacuum pump Passenger's seats adjustment switch Passenger's side footwell light Passenger's side outer door handle electronic module Passenger's side outside mirror Right front seat module Right heated water jet Roof function control center Siren & alarm sensor Steering gear shield W/ xenon Water valve Wiper motor X11166 X13037 X14234 X151 (left side of rear compt) X165 (left side of engine compt) X1703 X256 X279 X490 X60234 X6402 X64553 Ground Distribution Wiring Diagram (2 of 4) for BMW 128i 2012 List of elements for Ground Distribution Wiring Diagram (2 of 4) for BMW 128i 2012: 58 (3.0l) radiator shutter solenoid (3.ol) radiator shutter drive unit (m/t) clutch switch module (not used) (w/ memory) driver's seat module (w/ xenon) right headlight (w/o memory) driver's seat heating module Active cruise control Bonnet contact switch Brake fluid level switch Brake light switch Car access system Cont- roller Coolant level switch Driver seat position sensor Driver's door entrance light Driver's door system lock Driver's lumbar support switch Driver's seat backrest width adjustment valve block Driver's seat belt buckle contact Driver's seat vacuum pump Driver's side footwell light Driver's side outer door handle electronic module Driver's side outside mirror Driver's switch cluster Dynamic stability control (dsc) Electric fan Electric steering column adjustment Footwell module Front cigar lighter Front passenger's seat position sensor Headlight washer pump Left head- light Longitudinal dynamics management Multiple restraint system control unit Nca Obdii socket Passenger's seat belt buckle contact Rear center console charging socket Rear lid release switch Rear window washer pump Right fog light Right front direction indicator repeater light Right horn Roll- over protection control Seat occupancy recognition W/ xenon Windscreen washer pump X10254 X10647 X1108 (under left side of dash) X1441 X166 (right side of engine compt) X170 (left side of engine compt) X173 (under left side of dash) X257 X275 X279 Ground Distribution Wiring Diagram (3 of 4) for BMW 128i 2012 List of elements for Ground Distribution Wiring Diagram (3 of 4) for BMW 128i 2012: 83 (conver- tible) (conver- tible) comfort access control module (conver- tible) convertible top floor compartment switch (conver- tible) rear window defogger (conver- tible) right inner tail- light (conver- tible) right outer tail light (convertible) convertible top 1 relay (convertible) convertible top 2 relay (convertible) convertible top drive valve 1 (convertible) convertible top drive valve 2 (convertible) convertible top drive valve 3 (convertible) right rear micro wave sensor (coupe) auxiliary brake light (coupe) boot lid button (coupe) boot lid central locking drive (coupe) comfort access controlled module (coupe) left license plate light (coupe) rear window defogger lockout circuit (coupe) right boot lid resistor (coupe) right inner tail- light (coupe) right license plate light (coupe) right outer tail- light (coupe) right tail- light (hifi) (if equipped) radio (top hifi) (under right side of dash) junction box (w/ cic) car information computer (w/o cic) ccc/ m-ask Amplifier Auc sensor Auxiliary brake light Boot lid button Cd changer Combox Convertible Digital tuner us Diode panel Eject box Electro- chromic interior rear view mirror Electronics junction box Footwell module Fuel pump control (ekps) Gear indicator lighting Left license plate light Luggage compar- tment socket outlet Nca Park distance control (pdc) Right head- light Right license plate light Right rear micro wave sensor Right tail light Satellite receiver Steptronic switch Tcu Telephone retrofit packages connector Telephone transceiver Tire pressure control (rdc) Trailer module Trailer socket Ulf Ulf- sbx-h Ulf-sbx Usb hub Video module W/ combox Washer fluid level switch X10012 X10266 X1276 X13016 (left rear side of interior panel) X13146 X13663 X13812 X14062 X14130 X14133 X14454 X17397 X18180 X18363 X34130 X494 (right rear side of interior panel) X498 (right side of rear compt) Ground Distribution Wiring Diagram (4 of 4) for BMW 128i 2012 List of elements for Ground Distribution Wiring Diagram (4 of 4) for BMW 128i 2012: 39 (3.0l twin turbo) (3.0l twin turbo) junction box (3.0l twin turbo) refrigerant compressor control valve (3.0l twin turbo) transmission control (3.0l) crankshaft breather heating 1 (3.0l) disa actuator 1 (3.0l) disa actuator 2 (3.0l) engine breather heating 2 (3.0l) engine breather heating 3 (3.0l) engine breather heating 4 (3.0l) oil condition sensor (3.0l) transmission control 3.0l 3.0l twin turbo A/c compressor control valve Dme control module Electric coolant pump Ignition coil cylinder 1 Ignition coil cylinder 2 Ignition coil cylinder 3 Ignition coil cylinder 4 Ignition coil cylinder 5 Ignition coil cylinder 6 Interference suppression capacitor for ignition coils Nca Reversing light switch X14271 X60003 X60005 X6021 X60552 X6170 (top of engine) X6171 (top of engine) X6172 (top of engine) X6176 (3.0l) X6177 (3.0l) X6454 (right rear of engine compt) X6455 (right side of engine coolant pump) X65399
HEADLIGHTS Adaptive Front Lighting Wiring Diagram (1 of 2) for BMW 128i 2012 List of elements for Adaptive Front Lighting Wiring Diagram (1 of 2) for BMW 128i 2012: 36 (left side of rear compt) Computer data lines system Convertible Except convertible F41 30a F81 30a F84 40a F86 40a Fog Footwell module (under left side of dash) Fuse High Hot at all times Junction box (under right side of dash) Left fog light Left headlight Left taillight Rain/headlight sensor (center of windshield) Red Right fog light Roof function control center Turn X10012 X11005 X11009 X1108 (under left side of dash) X14259 X14260 X14261 X14286 X14287 X14288 X151 X165 (left side of engine compt) X166 (right side of engine compt) X173 (under left side of dash) Adaptive Front Lighting Wiring Diagram (2 of 2) for BMW 128i 2012 List of elements for Adaptive Front Lighting Wiring Diagram (2 of 2) for BMW 128i 2012: 23 (left rear of engine compt) (right rear of engine compt) dme control module (under left side of dash) brake light switch (under left side of dash) car access system 3.0l 3.0l twin turbo Dynamic stability control (dsc) Fog Front ride height sensor (behind left front wheel) High Light switch unit Rear ride height sensor (front of right rear wheel) Right headlight Right taillight Steering column switch cluster Turn X10012 X1108 (under left side of dash) X13376 X166 (right side of engine compt) X494 (coupe) (right rear side of interior panel) X498 (convertible) (right side of rear compt) X60001 Headlamps Wiring Diagram, with Xenon Lamps (1 of 2) for BMW 128i 2012 List of elements for Headlamps Wiring Diagram, with Xenon Lamps (1 of 2) for BMW 128i 2012: 37 (left side of rear compt) Computer data lines system Convertible Except convertible Fog Footwell module (under left side of dash) Fuse f41 30a Fuse f81 30a Fuse f84 40a Fuse f86 40a High Hot at all times Junction box (under right side of dash) Left fog light Left headlight Left taillight Rain/headlight sensor (center of windshield) Red Right fog light Roof function control center Turn Vertical aim control motor X10012 X11005 X11009 X1108 (under left side of dash) X14259 X14260 X14261 X14286 X14287 X14288 X151 X165 (left side of engine compt) X166 (right side of engine compt) X173 (under left side of dash) Xenon headlight Headlamps Wiring Diagram, with Xenon Lamps (2 of 2) for BMW 128i 2012 List of elements for Headlamps Wiring Diagram, with Xenon Lamps (2 of 2) for BMW 128i 2012: 13 Fog Front ride height sensor (behind left front wheel) High Light switch unit Rear ride height sensor (front of right rear wheel) Right headlight Right taillight Steering column switch cluster Turn Vertical aim control motor X166 (right side of engine compt) X494 (coupe) (right rear side of interior panel) X498 (convertible) (right side of rear compt) Headlamps Wiring Diagram, without Xenon Lamps for BMW 128i 2012 List of elements for Headlamps Wiring Diagram, without Xenon Lamps for BMW 128i 2012: 41 (left side of rear compt) Computer data lines system Convertible Except convertible Fog Footwell module (under left side of dash) Fuse f41 30a Fuse f81 30a Fuse f84 40a Fuse f86 40a High Hot at all times Junction box (under right side of dash) Left fog light Left headlight Left taillight Light switch unit Low Rain/headlight sensor (center of windshield) Red Right fog light Right headlight Right taillight Roof function control center Steering column switch cluster Turn X10012 X11005 X11009 X1108 (under left side of dash) X14259 X14260 X14261 X14286 X14287 X14288 X151 X165 (left side of engine compt) X166 (right side of engine compt) X173 (under left side of dash) X498 (convertible) (right side of rear compt) x494 (coupe) (right rear side of interior panel)
HORN Horn Wiring Diagram for BMW 128i 2012 List of elements for Horn Wiring Diagram for BMW 128i 2012: 25 Car access system (under left side of dash) Fuse f108 250a Fuse f57 15a Horn relay Horn switch Hot at all times Junction box (under right side of dash) Junction box electronics Left horn (left side of front bumper) Rear fuse holder (right side of rear compt) Red Right horn (right side of front bumper) Steering column switch cluster Terminal relay X01001 X04010 X10170 X10209 X11007 X11010 X13020 X13376 X14272 X165 (left side of engine compt) X166 (right side of engine compt)
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for BMW 128i 2012 List of elements for Instrument Cluster Wiring Diagram for BMW 128i 2012: 31 (under left rear seat) (under right rear seat) Anti-lock brakes system Car information computer Ccc/m-ask Central information display Coolant level switch (right side of engine compt) Electric fuel pump (right tank half fuel level sensor) Fuse 5a Hand brake warning switch Hot at all times Hot w/ terminal 30g relay energized Instrument cluster control module Junction box (under right side of dash) Junction box electronics Left tank half fuel level sensor Nca Outside temperature sensor (front center of bumper) Red Steering column switch cluster W/ cic W/o cic X04010 X1108 (under left side of dash) X13820 X13822 X13823 X14271 X14272 X17427 X1880
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram, with Roof Function Center (1 of 2) for BMW 128i 2012 List of elements for Courtesy Lamps Wiring Diagram, with Roof Function Center (1 of 2) for BMW 128i 2012: 38 Boot lid central locking drive (on rear compt lid) Computer data lines system Electronics junction box Front interior light Fuse 10a Fuse 20a Fuse 30a Fuse 40a Fuse 5a Fuse 7.5a Glove compartment light Hot at all times Hot in on or start Hot w/ terminal 30g relay energized Interior lights Junction box (under right side of dash) Left front make-up mirror light Left front make-up mirror switch Map reading light Rear interior light Red Right front make-up mirror light Right front make-up mirror switch Right luggage compartment light Roof function control center Top lights X04010 X11001 X11003 X11005 X11008 X11009 X14270 X14272 X14286 X14287 X14289 X490 Courtesy Lamps Wiring Diagram, with Roof Function Center (2 of 2) for BMW 128i 2012 List of elements for Courtesy Lamps Wiring Diagram, with Roof Function Center (2 of 2) for BMW 128i 2012: 16 Computer data lines system Driver's door entrance light Driver's side footwell light Footwell module (under left side of dash) Light switch unit Passenger's door entrance light Passenger's side footwell Red X10012 X14259 X14260 X14261 X173 (under left side of dash) X256 X257 X490 Courtesy Lamps Wiring Diagram, without Roof Function Center for BMW 128i 2012 List of elements for Courtesy Lamps Wiring Diagram, without Roof Function Center for BMW 128i 2012: 36 Boot lid central locking drive Computer data lines system Driver's door entrance light Driver's side footwell light Electronics junction box Footwell module (under left side of dash) Front interior/ reading light Fuse 10a Fuse 30a Fuse 40a Glove compartment light Hot at all times Hot w/ terminal 30g relay energized Junction box (under right side of dash) Light switch unit Passenger's door entrance light Passenger's side footwell light Rear interior light Red Right luggage compartment light X04010 X10012 X11005 X11009 X1108 (under left side of dash) X14259 X14260 X14261 X14270 X14272 X173 (under left side of dash) X256 X257 X336 X4582 X490 Instrument Illumination Wiring Diagram for BMW 128i 2012 List of elements for Instrument Illumination Wiring Diagram for BMW 128i 2012: 39 (left rear side of interior panel) x13016 Ccc/m-ask Driver's switch cluster Electronics junction box Footwell module (under left side of dash) Front cigar lighter Fuse 30a Fuse 40a Gear indicator lighting Hazard warning switch Hot at all times Junction box (under right side of dash) Light switch unit Passenger's door power window switch Radio Rear lid release switch (interior) Red Steering column switch cluster Telephone retrofit packages connector W/ ccc/m-ask W/o ccc/m-ask X10012 X11005 X11009 X1108 (under left side of dash) X13016 (left rear side of interior panel) X13812 X14259 X14260 X14261 X14270 X14272 X1716 X173 (under left side of dash) X1880 X256 X257 X490 X9944
MEMORY SYSTEMS Driver"s Memory Seat Wiring Diagram (1 of 2) for BMW 128i 2012 List of elements for Driver"s Memory Seat Wiring Diagram (1 of 2) for BMW 128i 2012: 33 Computer data lines system Driver's seat adjustment switch Driver's seat angle adjustment drive (under driver seat) Driver's seat backrest heating (in driver seat back) Driver's seat cushion heating (in driver seat cushion) Driver's seat height adjustment drive unit (under driver seat) Driver's seat module (under driver's seat) Driver's side easy entry switch Fuse 30a Fuse f77 10a x04010 Hot w/ terminal 30g relay energized Junction box (under right side of dash) Junction box electronics Nca Red X11006 X11629 X13617 X13709 X13995 X13996 X13997 X13999 X14012 X14271 X14272 X1533 X173 (under left side of dash) X275 X727 X728 X732 X733 Driver"s Memory Seat Wiring Diagram (2 of 2) for BMW 128i 2012 List of elements for Driver"s Memory Seat Wiring Diagram (2 of 2) for BMW 128i 2012: 12 (left side of driver's seat back) Center console switch center Driver's seat forward/ backward adjustment drive unit (under driver seat) Driver's seat-backrest angle adjustment drive Heating/air conditioning system (center of dash, above radio) Nca X01199 X1467 X14691 X14692 X608 X729 Passenger"s Memory Seat Wiring Diagram (1 of 2) for BMW 128i 2012 List of elements for Passenger"s Memory Seat Wiring Diagram (1 of 2) for BMW 128i 2012: 20 Computer data lines system Fuse f45 30a Fuse f77 10a x04010 Hot w/ terminal 30g relay energized Junction box (under right side of dash) Junction box electronics Nca Passenger's seat adjustment switch Passenger's seat backrest heating (in passenger seat back) Passenger's seat cushion heating (in passenger seat cushion) Passenger's seat module (under front passenger's seat) X013709 X022008 X0732 X0733 X11006 X14271 X14272 X279 X490 Passenger"s Memory Seat Wiring Diagram (2 of 2) for BMW 128i 2012 List of elements for Passenger"s Memory Seat Wiring Diagram (2 of 2) for BMW 128i 2012: 21 (center of dash, above radio) heating/air conditioning system Center console switch center Nca Passenger easy entry switch Passenger's backrest angle adjustment drive (under passenger seat, on track) Passenger's seat angle adjustment drive (under passenger seat) Passenger's seat forward/ backward adjustment drive (under passenger seat) Passenger's seat height adjustment drive (under passenger seat, on track) Passenger's seat module (under front passenger's seat) X01199 X013532 X013534 X014012 X01467 X014691 X014692 X01533 X0727 X0728 X10467 X608
NAVIGATION Navigation Wiring Diagram, Base Radio (1 of 2) for BMW 128i 2012 List of elements for Navigation Wiring Diagram, Base Radio (1 of 2) for BMW 128i 2012: 56 (18 to 21 pins not used) (23 to 28 pins not used) (33 to 34 pins not used) (w/ automatic start/stop function) hot at all times (w/o automatic start/stop function) hot w/ terminal 30g relay energized Aerial digital tuner (convertible) Aerial digital tuner 2 (convertible) Aerial diversity (bottom center of rear window) Aux-in connection Car information computer cic Central information display Computer data lines system Convertible Coupe Electronics junction box Fm aerial 2 Fm aerial 3 Fuse 15a Fuse 5a Interior lights system Junction box (under right side of dash) Left microphone Nca Rear window aerial (coupe) Red Usb port X01240 X01241 X04010 X11002 X1143 X13016 (left rear side of interior panel) X13344 X13365 X134125 X13812 X13815 X13816 X13817 X13822 X13823 X13836 X13911 X14066 X14087 X14118 X14272 X16767 X1716 X17425 X17427 X17985 X19580 X22020 X22021 X34124 X34145 Navigation Wiring Diagram, Base Radio (2 of 2) for BMW 128i 2012 List of elements for Navigation Wiring Diagram, Base Radio (2 of 2) for BMW 128i 2012: 53 (w/o automatic start/stop function) hot w/ terminal 30g relay energized (w/ automatic start/stop function) hot at all times Aerial (convertible) Cd changer (left side of rear compt) Convertible Coupe Digital tuner (left side of rear compt) Fuse 10a Fuse 5a Gps aerial Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left front mid- range speaker Left rear mid- range speaker Left sub- woofer Most bus connector Nca Right front mid- range speaker Right rear mid- range speaker Right sub- woofer Roof aerial Rtti splitter Sat Satellite receiver (left side of rear compt) Sdars aerial Tcu/ulf/ulf- sbx/ulf-sbx-h Video module (left side of rear compt) X014132 X10639 X11002 X11411 X13016 (left rear side of interior panel) X13303 X13393 X13824 X14062 X14063 X14064 X14066 X14130 X14131 X14132 X14134 X14454 X14455 X14664 X16766 X1716 X18180 X256 X257 X273 X274 X30033 Navigation Wiring Diagram, Hifi Radio with CCC & M-ASK (1 of 3) for BMW 128i 2012 List of elements for Navigation Wiring Diagram, Hifi Radio with CCC & M-ASK (1 of 3) for BMW 128i 2012: 42 (or nca) (pins: 16 to 29 not used) (pins: 31 to 34 not used) (w/ automatic start/stop function) hot at all times (w/o automatic start/stop function) hot w/ term 30g relay energized Aux-in connection Ccc/m-ask Central information display Computer data lines system Dynamic stability control (dsc) (left rear of engine compt) Electronics junction box Fuse 10a Fuse 20a Fuse 5a Hot w/ bistable relay energized Hot w/ terminal 30g relay energized Interior lights system Junction box (under right side of dash) Left microphone Nca Red Tcu Video module (left side of rear compt) W/ convertible X04010 X11002 X11007 X13016 (left rear side of interior panel) X13812 X13814 X13817 X13820 X13822 X13823 X14087 X14118 X14133 X14272 X14454 X14455 X1716 X18803 X9331 Navigation Wiring Diagram, Hifi Radio with CCC & M-ASK (2 of 3) for BMW 128i 2012 List of elements for Navigation Wiring Diagram, Hifi Radio with CCC & M-ASK (2 of 3) for BMW 128i 2012: 35 Ccc/m ask Cd changer (left side of rear compt) Convertible Coupe Digital tuner (dab) (left side of rear compt) Fan m-ask/ccc Gps aerial Most bus connector Nca Roof aerial Rtti splitter Satellite receiver (left side of rear compt) Sdars aerial Tcu (if equipped) W/ convertible X014132 X10639 X11411 X13016 (left rear side of interior panel) X13393 X13813 X13815 X13816 X13836 X14062 X14063 X14064 X14066 X14130 X14131 X14132 X14134 X17197 X18180 X30033 Navigation Wiring Diagram, Hifi Radio with CCC & M-ASK (3 of 3) for BMW 128i 2012 List of elements for Navigation Wiring Diagram, Hifi Radio with CCC & M-ASK (3 of 3) for BMW 128i 2012: 45 (bottom center of rear window) Aerial (convertible) Aerial diversity Amplifier (left side of rear compt) Computer data lines system Controller Convertible Coupe Fm aerial 2 (convertible) Fm aerial 3 (convertible) Fuse 20a Fuse 5a Hot at all times Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left front mid- range speaker Left front tweeter Left rear hi- range speaker Left side trim panel mid-range speaker Left subwoofer Nca Power distribution system Rear window aerial (coupe) Right front mid-range speaker Right front tweeter Right rear hi-range speaker Right side trim panel mid-range speaker Right subwoofer W/ automatic start/stop function W/o automatic start/stop function X01240 X01241 X11002 X11003 X1108 (under left side of dash) X1143 X13016 (left rear side of interior panel) X13344 X13365 X13824 X13911 X1716 X256 X257 X30033 Navigation Wiring Diagram, Hifi Radio with CIC (1 of 2) for BMW 128i 2012 List of elements for Navigation Wiring Diagram, Hifi Radio with CIC (1 of 2) for BMW 128i 2012: 69 (18 to 21 pins not used) (23 to 28 pins not used) (33 to 34 pins not used) (left rear side of interior panel) x13016 (w/ automatic start/stop function) hot at all times (w/o automatic start/stop function) hot w/ terminal 30g relay energized Aerial digital tuner (convertible) Aerial digital tuner 2 (convertible) Aux-in connection Car information computer cic Cd changer (left side of rear compt) Central information display Computer data lines system Convertible Coupe Digital tuner us (left side of rear compt) Electronics junction box Fuse 10a Fuse 15a Fuse 5a Gps aerial Hot w/ terminal 30g relay energized Interior lights system Junction box (under right side of dash) Left microphone Most bus connector Nca Red Roof aerial (coupe) Rtti splitter Tcu/ulf/ulf- sbx/ulf-sbx-h Usb port Video module (left side of rear compt) X014132 X04010 X10639 X11002 X13016 (left rear side of interior panel) X13393 X13812 X13815 X13816 X13817 X13822 X13823 X13836 X14064 X14066 X14087 X14118 X14130 X14131 X14132 X14134 X14272 X14454 X14455 X16766 X1716 X17425 X17427 X17985 X18180 X19580 X22020 X22021 X30033 X34124 X34125 X34145 Navigation Wiring Diagram, Hifi Radio with CIC (2 of 2) for BMW 128i 2012 List of elements for Navigation Wiring Diagram, Hifi Radio with CIC (2 of 2) for BMW 128i 2012: 48 (left side of Aerial (convertible) Aerial diversity (bottom center of rear window) Amplifier (left side of rear compt) Convertible Coupe Fm aerial 2 (convertible) Fm aerial 3 (convertible) Fuse 20a Hot at all times Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left front mid- range speaker Left front tweeter Left rear hi-range speaker Left side trim panel mid-range speaker Left subwoofer Nca Rear compt) Rear window aerial (coupe) Right front mid-range speaker Right front tweeter Right rear hi-range speaker Right side trim panel mid-range speaker Right subwoofer Satellite receiver Sdars aerial W/ automatic start/stop function W/o automatic start/stop function X01240 X01241 X11002 X11411 X1143 X13016 (left rear side of interior panel) X13344 X13365 X13824 X13911 X14062 X14063 X14064 X14066 X16767 X1716 X256 X257 X30033 Navigation Wiring Diagram, Top Hifi Radio for BMW 128i 2012 List of elements for Navigation Wiring Diagram, Top Hifi Radio for BMW 128i 2012: 27 (left side of Amplifier Fuse 20a Hot at all times Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left front mid-range speaker Left front tweeter Left rear hi-range speaker Left rear mid-range speaker Left subwoofer Most data bus circuit Rear compt) Right front mid-range speaker Right front tweeter Right rear hi-range speaker Right rear mid-range speaker Right subwoofer W/ automatic start/stop function W/o automatic start/stop function X10633 X11002 X13016 (left rear side of interior panel) X1716 X18773 X256 X257 Parking Assistant Wiring Diagram for BMW 128i 2012 List of elements for Parking Assistant Wiring Diagram for BMW 128i 2012: 20 Computer data lines system Fuse 5a Hot in on or start Junction box (under right side of dash) Left front center ultrasonic sensor (left side of front bumper) Left front ultrasonic sensor (left end of front bumper) Left rear center ultrasonic sensor (left side of rear bumper) Left rear ultrasonic sensor (left end of rear bumper) Park distance control (pdc) (right side of rear compt) Power distribution system Right front center ultrasonic sensor (right side of front bumper) Right front ultrasonic sensor (right end of front bumper) Right rear center ultrasonic sensor (right side of rear bumper) Right rear ultrasonic sensor (right end of rear bumper) X10012 X10647 X11001 X18013 X18362 X300
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 5) for BMW 128i 2012 List of elements for Power Distribution Wiring Diagram (1 of 5) for BMW 128i 2012: 84 3.0l 3.0l twin turbo Alternator Battery Battery sensor (right side of rear compt) Car access system Computer data lines system Convertible top relay 1 Convertible top relay 2 Dme control module Dme control module (3.0l) Dme control unit Dme relay Driver's seat heating module Electric auxiliary heater Electric coolant pump Electronic power steering (eps) Engine controls fuse carrier (right plenum chamber e-box) Footwell module Fuse 100a Fuse 10a Fuse 15a Fuse 20a Fuse 250a Fuse 40a Fuse 50a Fuse 5a Fuse 7.5a Fuse n/a Headlight washer relay Ignition & fuel injection relay (3.0l twin turbo) Jump start terminal point Junction box (under right side of dash) Luggage well b+ terminal point Nca Oil condition sensor (3.0l) Passenger's seat heating module Rear fuse holder (right side of rear compt) Rear window wiper relay Red Roof function control center Starter To fuse 67 (diagram 2 of 5) Valvetronic relay Vvt relay (3.0l) X01195 X013709 X10002 X10004 X10209 X10272 X11001 X11007 X11008 X11009 X13020 X13146 X13376 X13709 X14260 X14261 X14286 X18090 X18261 X1984 X275 X279 X60001 X60002 X60003 X60005 X6011 X60234 X60571 X6402 X6404 X6430 X6512 X7520 X8681 X8682 X8683 X8684 X9230 Power Distribution Wiring Diagram (2 of 5) for BMW 128i 2012 List of elements for Power Distribution Wiring Diagram (2 of 5) for BMW 128i 2012: 71 (400w) (600w) Car access system Convertible Coupe Driver's door microwave sensor Dynamic stability control (dsc) Electric coolant pump (3.0l) Electric fan cut-out relay Electric vacuum pump relay Electro- chromic interior rear view mirror (convertible) Electronics junction box Footwell module From a fuse 3 (diagram 1 of 5) From fuse 12 b (diagram 2 of 5) From fuse 73 c (diagram 2 of 5) Fuel pump relay Fuse 10a Fuse 15a Fuse 20a Fuse 30a Fuse 40a Fuse 50a Fuse 50a 60a Fuse 5a Fuse 7.5a Gear indicator lighting Heated rear window relay Instrument cluster control module Junction box (under right side of dash) Left bootlid resistor Nca Obdii socket Passenger's door microwave sensor Passenger's seat module Rear window defogger Rear window defogger lockout circuit (positive) Red Right rear microwave sensor Rollover protection controller Secondary air pump relay Siren & tilt alarm sensor Siren with tilt alarm sensor Steering column switch cluster To fuse (diagram 2 of 5) To terminal 30g relay (diagram 3 of 5) Wiper relay 1 Wiper relay 2 X013709 X04010 X11001 X11002 X11004 X11005 X11006 X11007 X11008 X11009 X11011 X13376 X14261 X14270 X14272 X18303 X1880 X256 X257 X279 X379 X6041 X60552 X9944 Power Distribution Wiring Diagram (3 of 5) for BMW 128i 2012 List of elements for Power Distribution Wiring Diagram (3 of 5) for BMW 128i 2012: 60 Active steering Aerial diversity (convertible w/ antenna diversity) Amplifier Car access system (under left side of dash) Car information computer (cic) Cd changer Convertible Convertible top module (ctm) Coupe Driver's seat module Dynamic stability control (dsc) Electric fan cut-out relay From dc/dc converter (diagram 5 of 5) From fuse 89 (diagram 2 of 5) From k fuse 23 (diagram 5 of 5) Fuse 15a Fuse 20a Fuse 30a Fuse 40a Fuse 5a Junction box (under right side of dash) Passenger seat module Radio Red Roof function control center Side-in compartment Start stop button Stop function Terminal 30g relay To dc/dc converter (diagram 5 of 5) To fuse (diagram 4 of 5) To fuse (diagram 5 of 5) To terminal 15 relay (diagram 4 of 5) Trailer socket W/ automatic engine start- W/ cic W/ hifi W/ top hifi W/o automatic engine start- W/o cic X10318 X11002 X11003 X11006 X11008 X11010 X1276 X13037 X13376 X13709 X13718 X13812 X13911 X14287 X1716 X18180 X18303 X18773 X275 X279 Power Distribution Wiring Diagram (4 of 5) for BMW 128i 2012 List of elements for Power Distribution Wiring Diagram (4 of 5) for BMW 128i 2012: 89 (under right side of dash) junction box Auc sensor Blower output stage Central information display Combox Controller Digital tuner us Driver's seat heating module Driver's switch cluster Eject box Electronics junction box From bistable relay (diagram 5 of 5) From car access system (diagram 3 of 5) From l fuse 28 (diagram 3 of 5) From r junction box (diagram 3 of 5) Fuel pump control (ekps) Fuse 10a Fuse 15a Fuse 20a Fuse 40a Fuse 5a Fuse 7.5a Gear indicator lighting Glove compartment light Heating/air conditioning system Horn relay Left horn Longitudinal dynamics management Nca Park distance control (pdc) Passenger's seat heating module Passenger's side outside mirror Right horn Right luggage compartment light Roof function control center Satellite receiver Steering column switch cluster Tcu Telephone retrofit packages connector Telephone transceiver Terminal 15 relay Tire pressure control (rdc) To dc/dc converter (diagram 5 of 5) To fuse (diagram 5 of 5) Ulf Ulf-sbx Ulf-sbx-h Usb hub Video module W/ automatic engine start- stop function W/ combox W/ tcu W/ ulf W/ ulf-sbx W/ ulf-sbx-h W/o automatic engine start- stop function X04010 X10171 X10254 X10387 X11001 X11002 X11003 X11007 X11008 X11010 X11011 X13663 X13709 X13822 X14062 X14130 X14133 X14270 X14272 X14286 X14454 X1716 X17397 X1848 X256 X257 X275 X279 X300 X34130 X608 X9331 X9944 Power Distribution Wiring Diagram (5 of 5) for BMW 128i 2012 List of elements for Power Distribution Wiring Diagram (5 of 5) for BMW 128i 2012: 73 (under right side of dash) junction box Active cruise control Bistable relay Ccc/m-ask Combox Comfort access control unit Dc/dc converter (right rear of engine compt) Driver's lumbar support switch Driver's lumbar support valve block Driver's seat backrest width adjustment switch Driver's seat backrest width adjustment valve block Driver's side outer door handle electronic module Eject box Electronics junction box From car access system m (diagram 3 of 5) From e terminal 30g relay (diagram 3 of 5) From fuse 28 p (junction box) (diagram 3 of 5) From fuse 6 (junction box) (diagram 4 of 5) From g horn relay (diagram 4 of 5) From j fuse 27 (diagram 4 of 5) Front cigar lighter Fuse 10a Fuse 15a Fuse 20a Fuse 30a Fuse 5a Independent/ auxiliary heating control unit Interior lights system Junction box (under right side of dash) Luggage compartment socket outlet Nca Passenger's lumbar support switch Passenger's lumbar support valve block Passenger's seat backrest adjustment switch Passenger's seat backrest adjustment valve block Passenger's side outer door handle electronic module Rear center console charging socket Red Stop function Tcu To fuse 25 (diagram 3 of 5) To fuse 88 (diagram 4 of 5) To junction box (diagram 3 of 5) Trailer module Transmission control W/ automatic engine start- W/o automatic engine start- X011586 X04010 X11001 X11002 X11003 X11004 X11007 X11009 X11586 X1276 X13354 X13812 X14133 X14270 X14271 X1716 X173 (under left side of dash) X256 X257 X275 X279 X34130 X490 X494 (right rear side of interior panel) X6021 X9331
POWER DOOR LOCKS Power Door Locks Wiring Diagram (1 of 3) for BMW 128i 2012 List of elements for Power Door Locks Wiring Diagram (1 of 3) for BMW 128i 2012: 33 (right rear side of interior panel) x494 Aerial diversity (bottom center of rear window) Boot lid button Car access system (under left side of dash) Computer data lines system Convertible Coupe Driver's door system lock (left front door) Electrochromic interior rear Fbd receiver Footwell module (under left side of dash) Fuse f72 15a Fuse f73 15a Glove compartment central locking drive unit (convertible) Hazard warning switch Hood contact switch (left rear of engine compt) Hot at all times Hotel switch Interior lights system Junction box (under right side of dash) Junction box ecu Remote control receiver View mirror X04010 X1108 (under left side of dash) X13376 X14261 X14270 X14271 X14272 X173 (under left side of dash) X1o254 X257 Power Door Locks Wiring Diagram (2 of 3) for BMW 128i 2012 List of elements for Power Door Locks Wiring Diagram (2 of 3) for BMW 128i 2012: 21 (center of roof) interior movement detector Center roof function control Convertible Coupe Fuel filler flap central locking drive (right side of rear compt) Fuse f54 7.5a Hot at all times Interior lights system Junction box (under right side of dash) Passenger compartment central locking drive (convertible) Passenger's door system lock Rear lid release switch (interior) Siren & tilt alarm sensor X11007 X1108 (under left side of dash) X14286 X14288 X14289 X151 (left side of rear compt) X256 X490 Power Door Locks Wiring Diagram (3 of 3) for BMW 128i 2012 List of elements for Power Door Locks Wiring Diagram (3 of 3) for BMW 128i 2012: 20 (convertible) siren w/ tilt alarm sensor Anti- theft alarm led Boot lid central locking drive Computer data lines system Convertible Coupe Driver's door microwave sensor Electrochromic interior rear view mirror Fuse f63 5a Hot at all times Interior lights system Junction box (under right side of dash) Passenger's door microwave sensor Power distribution system Right rear microwave sensor X11008 X151 (left side of rear compt) X256 X257 X498 (right side of rear compt)
POWER MIRRORS Electrochromic Mirror Wiring Diagram for BMW 128i 2012 List of elements for Electrochromic Mirror Wiring Diagram for BMW 128i 2012: 24 (right side of rear compt) comfort access control unit Car access system (under left side of dash) (convertible) Convertible Coupe Electrochromic interior rear view mirror Fuse 20a Fuse 5a Fuse 7.5a Hot at all times Hot w/ terminal 15 relay energized Hot w/ terminal 30g relay energized Junction box (under right side of dash) Power distribution system Roof function control center Siren w/ tilt alarm sensor (rear of left rear wheelwell) X10012 X11001 X11003 X11008 X13354 X13376 X14286 X14287 X14288 Power Mirrors Wiring Diagram, with Heated Mirrors for BMW 128i 2012 List of elements for Power Mirrors Wiring Diagram, with Heated Mirrors for BMW 128i 2012: 20 (under right side of dash) junction box Driver's side outside mirror Driver's switch cluster Electronics junction box Footwell module (under left side of dash) Fuse 5a Heating Horizontal Hot w/ terminal 15 relay energized Interior lights system Nca Passenger's side outside mirror Vertical X11001 X14261 X14270 X173 (under left side of dash) X256 X257 X490 Power Mirrors Wiring Diagram, without Heated Mirrors for BMW 128i 2012 List of elements for Power Mirrors Wiring Diagram, without Heated Mirrors for BMW 128i 2012: 17 (under left side of dash) footwell module Computer data lines system Driver's side outside mirror Driver's switch cluster Fuse 7.5a Hot w/ terminal 30g relay energized Interior lights system Junction box (under right side of dash) Nca Passenger's side outside mirror X11002 X14260 X14261 X173 (under left side of dash) X256 X257 X490
POWER SEATS Heated Seats Wiring Diagram for BMW 128i 2012 List of elements for Heated Seats Wiring Diagram for BMW 128i 2012: 33 Center console switch center Driver's seat backrest heating (in driver seat back) Driver's seat cushion heating (in driver seat cushion) Driver's seat heating module (under driver seat) Electronics junction box Fuse 10a x04010 Fuse 20a Fuse 5a Heating & air conditioning system (center of dash, above radio) Hot at all times Hot w/ term 30g relay energized Hot w/ terminal 15 relay energized Junction box (under right side of dash) Nca Passenger's seat backrest heating (in passenger seat back) Passenger's seat cushion heating (in passenger seat cushion) Passenger's seat heating module (under front passenger's seat) X01199 X013709 X0732 X0733 X11001 X11008 X13709 X14270 X14272 X173 (under left side of dash) X275 X279 X490 X608 X732 X733 Heated Steering Wheel Wiring Diagram for BMW 128i 2012 List of elements for Heated Steering Wheel Wiring Diagram for BMW 128i 2012: 15 Electronic steering wheel module Fuse 10a Hot w/ terminal 15 relay energized Junction box (under right side of dash) Red Steering column switch cluster Steering wheel heater switch Steering wheel heating w/ temperature sensor X01004 X10171 X10254 X11001 X14270 X14272 X490 Lumbar Wiring Diagram for BMW 128i 2012 List of elements for Lumbar Wiring Diagram for BMW 128i 2012: 15 Driver's lumbar support switch Driver's lumbar support valve block (left side of driver seat back) Driver's seat vacuum pump (right side of driver seat back) Fuse 10a Hot w/ terminal 30g relay energized Junction box (under right side of dash) Passenger's lumbar support switch Passenger's lumbar support valve block (right side of passenger seat back) Passenger's seat vacuum pump (left side of passenger seat back) Sport seat circuit X011586 X11002 X11586 X173 (under left side of dash) X490 Sport Seats Wiring Diagram for BMW 128i 2012 List of elements for Sport Seats Wiring Diagram for BMW 128i 2012: 16 Driver's lumbar support switch Driver's seat backrest width adjustment switch Driver's seat backrest width adjustment valve block (right side of driver seat back) Driver's seat vacuum pump (right side of driver seat back) Fuse 10a Hot w/ terminal 30g relay energized Junction box (under right side of dash) Passenger's lumbar support switch Passenger's seat backrest width adjustment switch Passenger's seat backrest width adjustment valve block (left side of passenger seat back) Passenger's seat vacuum pump (left side of passenger seat back) X011586 X11002 X11586 X173 (under left side of dash) X490
POWER TOP/SUNROOF Convertible Top Wiring Diagram (1 of 2) for BMW 128i 2012 List of elements for Convertible Top Wiring Diagram (1 of 2) for BMW 128i 2012: 37 Activation Air conditioning Can h Can l Computer data lines system Convertible top drive (right side of rear compt) Convertible top drive valve 1 Convertible top drive valve 2 Convertible top drive valve 3 Convertible top lid open hall sensor Convertible top module (behind left rear seat) Convertible top relay 1 (on convertible top drive) Convertible top relay 2 (on convertible top drive) Fuse f105 50a Fuse f25 20a Gnd Hall sens sig Hall sens sply Hot at all times Hot w/ terminal 30g relay energized Junction box (under right side of dash) Nca Rear fuse holder (right side of rear compt) Red Sw sig System Term 15 sply Term 30g X10002 X11003 X11166 X13037 X13038 X13098 X13146 X18363 X498 (right side of rear compt) Convertible Top Wiring Diagram (2 of 2) for BMW 128i 2012 List of elements for Convertible Top Wiring Diagram (2 of 2) for BMW 128i 2012: 15 Car access system (under left side of dash) Clamping bracket erected hall sensor Clamping bracket taken down hall sensor Convertible top compartment floor switch (left front of rear compt) Convertible top compartment lid locked hall sensor Cowl panel locked hall sensor Locking cowl panel drive (center front of roof) Main pillar erected hall sensor Main pillar taken down hall sensor Nca Red Tensioning bar extended hall sensor Wind screen cowl panel latch incremental transducer drive unit X13376 X498 (right side of rear compt) Sunroof Wiring Diagram for BMW 128i 2012 List of elements for Sunroof Wiring Diagram for BMW 128i 2012: 16 Computer data lines system Fuse f25 20a Fuse f62 7.5a Fuse f7 5a Hot at all times Hot in start or run Hot w/ term 30g relay energized Junction box (under right side of dash) Roof function control center Slide/tilt sunroof drive unit X11001 X11003 X11008 X14286 X14287 X490
POWER WINDOWS Power Windows Wiring Diagram for BMW 128i 2012 List of elements for Power Windows Wiring Diagram for BMW 128i 2012: 45 Car access system (under left side of dash) Computer data lines system Driver's switch cluster Driver's window motor (left front door) Footwell module (under left side of dash) Fuse 7.5a Fuse f41 30a Fuse f53 Fuse f81 30a Fuse f84 40a Fuse f86 40a Ground Hot at all times Hot w/ terminal 30g relay energized Interior lights system Junction box (under right side of dash) Junction box electronics K-bus signal Passenger's door power window switch Passenger's window motor (right front door) Rear driver's side power window motor (convertible) (left rear door) Rear passenger's side power window motor (convertible) (right rear door) Red Sig lin bus Signal Term 15 Terminal 30 Transducer 1 Transducer 2 Transducer gnd X10012 X10725 X11002 X11005 X11009 X1108 (under left side of dash) X13376 X14260 X14261 X14270 X14271 X173 (under left side of dash) X256 X257 X490
RADIO Base Radio Wiring Diagram, with CIC (1 of 2) for BMW 128i 2012 List of elements for Base Radio Wiring Diagram, with CIC (1 of 2) for BMW 128i 2012: 56 (18 to 21 pins not used) (23 to 28 pins not used) (33 to 34 pins not used) (w/ automatic start/stop function) hot at all times (w/o automatic start/stop function) hot w/ terminal 30g relay energized Aerial digital tuner (convertible) Aerial digital tuner 2 (convertible) Aerial diversity (bottom center of rear window) Aux-in connection Car information computer cic Central information display Computer data lines system Convertible Coupe Electronics junction box Fm aerial 2 Fm aerial 3 Fuse 15a Fuse 5a Interior lights system Junction box (under right side of dash) Left microphone Nca Rear window aerial (coupe) Red Usb port X01240 X01241 X04010 X11002 X1143 X13016 (left rear side of interior panel) X13344 X13365 X134125 X13812 X13815 X13816 X13817 X13822 X13823 X13836 X13911 X14066 X14087 X14118 X14272 X16767 X1716 X17425 X17427 X17985 X19580 X22020 X22021 X34124 X34145 Base Radio Wiring Diagram, with CIC (2 of 2) for BMW 128i 2012 List of elements for Base Radio Wiring Diagram, with CIC (2 of 2) for BMW 128i 2012: 53 (w/o automatic start/stop function) hot w/ terminal 30g relay energized (w/ automatic start/stop function) hot at all times Aerial (convertible) Cd changer (left side of rear compt) Convertible Coupe Digital tuner (left side of rear compt) Fuse 10a Fuse 5a Gps aerial Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left front mid- range speaker Left rear mid- range speaker Left sub- woofer Most bus connector Nca Right front mid- range speaker Right rear mid- range speaker Right sub- woofer Roof aerial Rtti splitter Sat Satellite receiver (left side of rear compt) Sdars aerial Tcu/ulf/ulf- sbx/ulf-sbx-h Video module (left side of rear compt) X014132 X10639 X11002 X11411 X13016 (left rear side of interior panel) X13303 X13393 X13824 X14062 X14063 X14064 X14066 X14130 X14131 X14132 X14134 X14454 X14455 X14664 X16766 X1716 X18180 X256 X257 X273 X274 X30033 Base Radio Wiring Diagram, without CIC for BMW 128i 2012 List of elements for Base Radio Wiring Diagram, without CIC for BMW 128i 2012: 73 (left rear side of interior panel) x13016 Aerial (convertible) Aerial diversity (bottom center of rear window) Aux-in connection Cd changer (left side of rear compt) Computer data lines system Controller Convertible Coupe Fm aerial 2 (convertible) Fm aerial 3 (convertible) Fuse 10a Fuse 15a Fuse 5a Hot at all times Hot w/ term 30g relay energized Hot w/ terminal 30g relay energized Interior lights system Junction box (under right side of dash) Left front mid- range speaker Left microphone Left rear mid-range speaker Left subwoofer Most bus connector Nca Power distribution system Radio Rear window aerial (coupe) Right front mid- range speaker Right rear mid-range speaker Right subwoofer Roof aerial Roof aerial (coupe) sdars aerial (convertible) Sat Satellite receiver (left side of rear compt) Sdars aerial (convertible) Tcu Telephone retrofit packages connector Telephone transceiver (center of rear compt) W/ automatic start/stop function W/o automatic start/stop function X01240 X01241 X10639 X11002 X1108 (under left side of dash) X11411 X1143 X13016 (left rear side of interior panel) X13344 X13365 X13812 X13815 X13816 X13824 X13911 X14062 X14063 X14064 X14066 X14118 X14134 X1716 X18180 X256 X257 X273 X274 X30033 X34145 X41087 X41580 X4716 Hifi Radio Wiring Diagram, with CCC & M-ASK (1 of 3) for BMW 128i 2012 List of elements for Hifi Radio Wiring Diagram, with CCC & M-ASK (1 of 3) for BMW 128i 2012: 42 (or nca) (pins: 16 to 29 not used) (pins: 31 to 34 not used) (w/ automatic start/stop function) hot at all times (w/o automatic start/stop function) hot w/ term 30g relay energized Aux-in connection Ccc/m-ask Central information display Computer data lines system Dynamic stability control (dsc) (left rear of engine compt) Electronics junction box Fuse 10a Fuse 20a Fuse 5a Hot w/ bistable relay energized Hot w/ terminal 30g relay energized Interior lights system Junction box (under right side of dash) Left microphone Nca Red Tcu Video module (left side of rear compt) W/ convertible X04010 X11002 X11007 X13016 (left rear side of interior panel) X13812 X13814 X13817 X13820 X13822 X13823 X14087 X14118 X14133 X14272 X14454 X14455 X1716 X18803 X9331 Hifi Radio Wiring Diagram, with CCC & M-ASK (2 of 3) for BMW 128i 2012 List of elements for Hifi Radio Wiring Diagram, with CCC & M-ASK (2 of 3) for BMW 128i 2012: 35 Ccc/m ask Cd changer (left side of rear compt) Convertible Coupe Digital tuner (dab) (left side of rear compt) Fan m-ask/ccc Gps aerial Most bus connector Nca Roof aerial Rtti splitter Satellite receiver (left side of rear compt) Sdars aerial Tcu (if equipped) W/ convertible X014132 X10639 X11411 X13016 (left rear side of interior panel) X13393 X13813 X13815 X13816 X13836 X14062 X14063 X14064 X14066 X14130 X14131 X14132 X14134 X17197 X18180 X30033 Hifi Radio Wiring Diagram, with CCC & M-ASK (3 of 3) for BMW 128i 2012 List of elements for Hifi Radio Wiring Diagram, with CCC & M-ASK (3 of 3) for BMW 128i 2012: 45 (bottom center of rear window) Aerial (convertible) Aerial diversity Amplifier (left side of rear compt) Computer data lines system Controller Convertible Coupe Fm aerial 2 (convertible) Fm aerial 3 (convertible) Fuse 20a Fuse 5a Hot at all times Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left front mid- range speaker Left front tweeter Left rear hi- range speaker Left side trim panel mid-range speaker Left subwoofer Nca Power distribution system Rear window aerial (coupe) Right front mid-range speaker Right front tweeter Right rear hi-range speaker Right side trim panel mid-range speaker Right subwoofer W/ automatic start/stop function W/o automatic start/stop function X01240 X01241 X11002 X11003 X1108 (under left side of dash) X1143 X13016 (left rear side of interior panel) X13344 X13365 X13824 X13911 X1716 X256 X257 X30033 Hifi Radio Wiring Diagram, with CIC (1 of 2) for BMW 128i 2012 List of elements for Hifi Radio Wiring Diagram, with CIC (1 of 2) for BMW 128i 2012: 69 (18 to 21 pins not used) (23 to 28 pins not used) (33 to 34 pins not used) (left rear side of interior panel) x13016 (w/ automatic start/stop function) hot at all times (w/o automatic start/stop function) hot w/ terminal 30g relay energized Aerial digital tuner (convertible) Aerial digital tuner 2 (convertible) Aux-in connection Car information computer cic Cd changer (left side of rear compt) Central information display Computer data lines system Convertible Coupe Digital tuner us (left side of rear compt) Electronics junction box Fuse 10a Fuse 15a Fuse 5a Gps aerial Hot w/ terminal 30g relay energized Interior lights system Junction box (under right side of dash) Left microphone Most bus connector Nca Red Roof aerial (coupe) Rtti splitter Tcu/ulf/ulf- sbx/ulf-sbx-h Usb port Video module (left side of rear compt) X014132 X04010 X10639 X11002 X13016 (left rear side of interior panel) X13393 X13812 X13815 X13816 X13817 X13822 X13823 X13836 X14064 X14066 X14087 X14118 X14130 X14131 X14132 X14134 X14272 X14454 X14455 X16766 X1716 X17425 X17427 X17985 X18180 X19580 X22020 X22021 X30033 X34124 X34125 X34145 Hifi Radio Wiring Diagram, with CIC (2 of 2) for BMW 128i 2012 List of elements for Hifi Radio Wiring Diagram, with CIC (2 of 2) for BMW 128i 2012: 48 (left side of Aerial (convertible) Aerial diversity (bottom center of rear window) Amplifier (left side of rear compt) Convertible Coupe Fm aerial 2 (convertible) Fm aerial 3 (convertible) Fuse 20a Hot at all times Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left front mid- range speaker Left front tweeter Left rear hi-range speaker Left side trim panel mid-range speaker Left subwoofer Nca Rear compt) Rear window aerial (coupe) Right front mid-range speaker Right front tweeter Right rear hi-range speaker Right side trim panel mid-range speaker Right subwoofer Satellite receiver Sdars aerial W/ automatic start/stop function W/o automatic start/stop function X01240 X01241 X11002 X11411 X1143 X13016 (left rear side of interior panel) X13344 X13365 X13824 X13911 X14062 X14063 X14064 X14066 X16767 X1716 X256 X257 X30033 Hifi Radio Wiring Diagram, without CIC, CCC & M-ASK (1 of 2) for BMW 128i 2012 List of elements for Hifi Radio Wiring Diagram, without CIC, CCC & M-ASK (1 of 2) for BMW 128i 2012: 50 (left rear side of interior panel) x13016 Aux-in connection Cd changer (left side of rear compt) Computer data lines system Controller Convertible Coupe Fuse 10a Fuse 15a Fuse 5a Hot at all times Hot w/ terminal 30g relay energized Interior lights system Junction box (under right side of dash) Most bus connector Nca Power distribution system Radio Roof aerial Sat Satellite receiver (left side of rear compt) Sdars aerial (convertible) Tcu Telephone retrofit packages connector Telephone transceiver (center of rear compt) W/ automatic start/stop function W/ convertibl W/ radio W/o automatic start/stop function W/o radio X10639 X11002 X11003 X1108 (under left side of dash) X11411 X13016 (left rear side of interior panel) X13812 X13815 X13816 X13824 X14062 X14063 X14064 X14066 X14118 X14134 X1716 X18180 X30033 X34145 Hifi Radio Wiring Diagram, without CIC, CCC & M-ASK (2 of 2) for BMW 128i 2012 List of elements for Hifi Radio Wiring Diagram, without CIC, CCC & M-ASK (2 of 2) for BMW 128i 2012: 39 Aerial (convertible) Aerial diversity (bottom center of rear window) Amplifier (left side of rear compt) Convertible Coupe Fm aerial 2 (convertible) Fm aerial 3 (convertible) Fuse 20a Hot at all times Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left front mid-range speaker Left front tweeter Left rear hi-range speaker Left side trim panel mid-range speaker Left subwoofer Nca Rear window aerial (coupe) Right front mid-range speaker Right front tweeter Right rear hi-range speaker Right side trim panel mid-range speaker Right subwoofer W/ automatic start/stop function W/ convertible W/o automatic start/stop function X01240 X01241 X11002 X1143 X13016 (left rear side of interior panel) X13344 X13365 X13824 X13911 X1716 X256 X257 X30033 MOST Data Bus Wiring Diagram for BMW 128i 2012 List of elements for MOST Data Bus Wiring Diagram for BMW 128i 2012: 16 Amplifier (w/ top hifi) (left side of rear compt) Ccc/m-ask (w/o cic car information center) car information computer cic (w/ cic car information center) radio (w/o cic, ccc & m-ask) Cd changer (left side of rear compt) Computer data lines system Most-bus connector Satellite receiver (left side of rear compt) Tcu (w/ tcu) ulf (w/ ulf) ulf-sbx (w/ ulf-sbx) ulf-sbx-h (w/ ulf-sbx-h) Video module (left side of rear compt) X10633 X10639 X13812 X13815 X13836 X14063 X14134 X14455 Top Hifi Radio Wiring Diagram for BMW 128i 2012 List of elements for Top Hifi Radio Wiring Diagram for BMW 128i 2012: 27 (left side of Amplifier Fuse 20a Hot at all times Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left front mid-range speaker Left front tweeter Left rear hi-range speaker Left rear mid-range speaker Left subwoofer Most data bus circuit Rear compt) Right front mid-range speaker Right front tweeter Right rear hi-range speaker Right rear mid-range speaker Right subwoofer W/ automatic start/stop function W/o automatic start/stop function X10633 X11002 X13016 (left rear side of interior panel) X1716 X18773 X256 X257
SHIFT INTERLOCK Shift Interlock Wiring Diagram for BMW 128i 2012 List of elements for Shift Interlock Wiring Diagram for BMW 128i 2012: 23 3.0l 3.0l twin turbo Anti- theft system Anti-lock brakes system Brake light Brake light switch (under left side of dash) Can h Can l Computer data lines system Dme control module (right rear of engine compt) Fuse 15a Hot w/ term 30g relay energized Junction box (under right side of dash) Red Shift lock selector lever lock (under center console) Td sig Transmission control Transmissions system X11003 X60001 X6031 X6454 (right rear of engine compt) X8500
STARTING/CHARGING Charging Wiring Diagram for BMW 128i 2012 List of elements for Charging Wiring Diagram for BMW 128i 2012: 26 (rear of engine, near transmission) (3.0l) oil condition sensor (right rear of engine compt) dme control module 3.0l 3.0l twin turbo Alternator Battery Battery sensor (right side of rear compt) Computer data lines system Fuse n/a Jump start terminal point (right side of engine compt) Luggage well b+ terminal point Nca Rear fuse holder (right side of rear compt) Red Starter X01195 X10272 X18090 X18261 X60001 X60002 X60005 X6402 X6404 X6512 X9230 Starting Wiring Diagram for BMW 128i 2012 List of elements for Starting Wiring Diagram for BMW 128i 2012: 32 3.0l 3.0l twin turbo A/t Battery Car access system (under left side of dash) Charging circuit Clutch switch module (under left side of dash) Dme control module (right rear of engine compt) Dynamic stability control (left rear of engine compt) Jump start terminal point (right side of engine compt) Luggage well b+ terminal point M/t Red Side-in compartment Start-stop button Starter Transmission control X01195 X10272 X10318 X1108 (under left side of dash) X13376 X18090 X60001 X6011 X6031 X60551 X60571 X6402 X6404 X6510 X6512
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for BMW 128i 2012 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for BMW 128i 2012: 40 (behind left rear seat) (convertible) left rollover protection actuator (behind right rear seat) (convertible) right rollover protection actuator (left rear side of interior panel) left "b" pillar air bag sensor (left side of driver seat back) driver's air bag inflator assembly (right side of passenger seat back) passenger's air bag inflator assembly Air bag sig + Air bag sig - Box (under right side of dash) Clstr air bag + Clstr air bag - Computer data lines system Fuse f53 10a Fuse f7 5a Hot at all times Hot in on or start Junction Junction box (under right side of dash) Left front seat belt force limiter generator (coupe) Left rear belt pretensioner (coupe) Multiple restraint system control unit (rear of center console) Nca Pass air bag + Pass air bag - Passenger air bag deactivation switch (right end of dash, near right front door) Right "b" pillar air bag sensor (right rear side of interior panel) (coupe) Right front seat belt force limiter generator (coupe) Right rear belt pretensioner (coupe) Roller protection controller (convertible) (behind left rear seat) Sig can-bus Steering column switch cluster X01001 X01071 X10170 X10172 X10179 X11001 X11007 X11406 X1441 X781 Supplemental Restraints Wiring Diagram (2 of 2) for BMW 128i 2012 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for BMW 128i 2012: 56 (left headliner) left head air bag inflator assembly (left side of driver seat back) driver side air bag inflator assembly (right headliner) (right side of passenger seat back) passenger side air bag inflator assembly Air bag ind Batt terminal + Batt terminal - Car access system (under left side of dash) Center roof function control Crash sig Diode panel Driver belt tensioner Driver's seat belt buckle contact Drv air bag + Drv air bag - Drv seat belt + Drv seat belt - Drv seat sens Frt pass sig Ground L air bag + L air bag - L b pillar sens Lf sbf lim gen+ Lf sbf lim gent Lr belt preten+ Lr belt preten- Multiple restraint system control unit (rear of center console) Nca Pass air bag + Pass air bag - Pass belt + Pass belt - Pass seat sens Passenger belt tensioner Passenger's seat belt buckle contact R air bag + R air bag - R b pillar sig Rf sbf lim gent Right head air bag inflator assembly Rr belt preten+ Rr belt preten- Safety battery terminal generator Seat occupancy Seat occupancy recognition Tcu Terminal r X13376 X14286 X1441 X18069 X275 X279 X494 (right rear side of interior panel) X9331
TRANSMISSION Transmission Wiring Diagram for BMW 128i 2012 List of elements for Transmission Wiring Diagram for BMW 128i 2012: 38 (under left side of dash) car access system Anti-theft system Computer data lines system Footwell module (under left side of dash) Fuse 10a Fuse 15a Fuse 5a Gear indicator light Hot at all times Junction box (under right side of dash) Junction box electronics Left multi- function steering wheel switch block Left rocker switch Nca Red Right multi- function steering wheel switch block Right rocker switch Selector lever position switch (under shifter, in center console) Shift lock selector lever lock (under center console) Steering column switch cluster Steptronic switch (under shifter, in center console) Terminal 30g relay Transmission control unit X10012 X11003 X11008 X11010 X13376 X14261 X14271 X14272 X14275 X1599 X1880 X6021 X6031 X6454 (right rear of engine compt) X9944
TRUNK, TAILGATE, FUEL DOOR Trunk & Fuel Door Release Wiring Diagram for BMW 128i 2012 List of elements for Trunk & Fuel Door Release Wiring Diagram for BMW 128i 2012: 21 (on rear compt lid) Boot lid button Boot lid central locking drive Car access system (under left side of dash) Electronics junction box Fuel filler flap center locking drive Fuse f72 15a x04010 Fuse f73 15a Glove compartment central locking drive unit (convertible) Hot at all times Hotel switch Interior lights system Junction box (under right side of dash) Rear lid release switch (interior) X10254 X1108 (under left side of dash) X13376 X14270 X14271 X14272 X498 (convertible) x494 (coupe) (convertible: right side of rear compt) (coupe: right rear side of interior panel)
WARNING SYSTEMS Warning Systems Wiring Diagram for BMW 128i 2012 List of elements for Warning Systems Wiring Diagram for BMW 128i 2012: 17 Computer data lines system Fuse 5a Hot w/ terminal 30g relay energized Junction box (under right side of dash) Left front electronic wheel module Left front rdc transmitter (front of left front wheelwell) Left rear electronic wheel module Left rear rdc transmitter (rear of left rear wheelwell) Power distribution system Rdc antenna (under vehicle) Right front electronic wheel module Right front rdc transmitter (front of right front wheelwell) Right rear electronic wheel module Right rear rdc transmitter (rear of right rear wheelwell) Tire pressure control (rdc) (right side of rear compt) X11003 X494 (right rear side of interior panel)
WIPER/WASHER Wiper/Washer Wiring Diagram for BMW 128i 2012 List of elements for Wiper/Washer Wiring Diagram for BMW 128i 2012: 42 (right side of engine compt) (under right side of dash) junction box Electronics junction box Fuse 30a Fuse f101 250a Fuse f25 20a Fuse f48 30a Fuse f62 7.5a Fuse f7 5a Headlight washer pump (behind right front wheel) Headlight washer relay Hot at all times Hot w/ terminal 15 relay energized Hot w/ terminal 30g relay energized Left heated washer nozzle Nca Outside temperature sensor (front center of bumper) Rain/headlight sensor (center of windshield) Rear fuse holder (right side of rear compt) Red Right heated washer nozzle Roof function control center Washer fluid level switch (behind right front wheel) Wind- shield washer pump (behind right front wheel) Wiper motor (left side of wind- shield) Wiper relay X04010 X10012 X10209 X11001 X11003 X11006 X11008 X11010 X13020 X14270 X14271 X14286 X14287 X14288 X166 X490
