Diagram sections — 34 (102 total)
ACTIVE BODYWORKS 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
ACTIVE BODYWORKS Active Bodyworks Wiring Diagram for BMW X3 28i 2012 List of elements for Active Bodyworks Wiring Diagram for BMW X3 28i 2012: 14 (rear compartment floor board) trailer module Early production Fully automatic towing hitch Fully automatic towing hitch button Fully drive automatic towing hitch Fuse 20a Hot w/ terminal 30b relay energized Late production Rear fuse holder (rear compartment floor board) Red Trailer socket switch X268 1b X269 1b Z10 14b
AIR CONDITIONING Automatic A/C Wiring Diagram (1 of 3) for BMW X3 28i 2012 List of elements for Automatic A/C Wiring Diagram (1 of 3) for BMW X3 28i 2012: 41 10b A/c compressor Air distribution micro switch Auc sensor Blower motor Blower sig Central gateway module (left side of dash) Computer data lines system Electronics junction box Evaporator temperature sensor (evaporator assembly) Footwell temperature sensor Front center ventilation grille Fuse 40a Fuse 5a Fuse 7.5a Gnd Heating/air conditioning system (center of dash) Hot at all times Hot w/ bistable relay energized Hot w/ terminal 15 relay energized Hot w/ terminal 30b relay energized Junction box (right side of dash) K-can bus sig Lin bus sig Microswitch sig Power distribution system Red Seats system Sens gnd Sens sig Sig air ctrl Sply air ctrl Ventilation temperature sensor Volt sply X095 X13 1b X430 1b X4701 X6454 Z10 6b Z10 8b Automatic A/C Wiring Diagram (2 of 3) for BMW X3 28i 2012 List of elements for Automatic A/C Wiring Diagram (2 of 3) for BMW X3 28i 2012: 19 Audio control panel Coolant pressure sensor (right front engine compt) Electric fan cut out relay Footwell flap motor Front electric auxiliary heater Front power distribution box Front ventilation flap motor Fuse 100a Hot at all times Left mixing flap motor Nca Rear compartment flap motor Rear compartment ventilation grille Red Right mixing flap motor Stratification flap motor X0136 X04000 X4702 Automatic A/C Wiring Diagram (3 of 3) for BMW X3 28i 2012 List of elements for Automatic A/C Wiring Diagram (3 of 3) for BMW X3 28i 2012: 48 (3.0l twin turbo) (3.0l) 3.0l 3.0l twin turbo A211 1b A211 2b A211 3b A212 1b Air distribution flap motor Bsd bus sig Car access system (left side of dash) Characteristic map thermostat Computer data lines system Cut-out relay Defroster flap motor Digital motor electronics control module (left rear engine compt) Early production Elec fan Electric coolant pump (lower front of engine) Electric fan (radiator support) Engine coolant temperature sensor (front of engine) Footwell module Fresh air flap motor Fuse 50a Hot at all times Interior lights system Late production Left front ventilation grille Map thermostat Mixing flap motor Power distribution box (left rear of engine compt) Pt-can bus sig Red Right front ventilation grille Sply map Sply pump Temp sens Temp sens sig Terminal 15 X430 1b X60003 X60183 X60572 X62790 X6455 (3.0l) z6000 4b (3.0l twin turbo) X671 1b X705 1b Z10 30b
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram for BMW X3 28i 2012 List of elements for Anti-lock Brakes Wiring Diagram for BMW X3 28i 2012: 31 (right rear wheel hub assembly) Automatic start/stop function w/ one dc/dc converter Automatic start/stop function w/ two dc/dc converter Brake fluid level switch (brake fluid reservoir) Brake light switch (top of brake pedal assembly) Car access system (left side of dash) Central gateway module (left side of dash) Computer data lines system Dynamic stability control (dsc) (left side of vehicle chassis) Footwell module Front power distribution box Fuse 30a Fuse 50a Fuse 5a Hot at all times Hot w/ terminal 30b relay energized Integrated chassis management (center console) Junction box (right side of dash) Left front brake pad wear sensor (left front caliper) Left front wheel speed sensor (left front wheel hub assembly) Left rear wheel speed sensor (left rear wheel hub assembly) Nca Parking brake button (base of parking brake lever) Parking brake control unit (center rear cargo area) Rear fuse holder (rear compt floor board) Right front wheel speed sensor (right front wheel hub assembly) Right rear brake pad wear sensor (right rear caliper) Right rear wheel speed sensor W/o automatic engine start/stop function Z10 24b Z10 7b
ANTI-THEFT Anti-theft & Central Locking Wiring Diagram for BMW X3 28i 2012 List of elements for Anti-theft & Central Locking Wiring Diagram for BMW X3 28i 2012: 45 (fuel filler flap door) fuel filler flap central locking drive (late production) (overhead console) high variant roof functions module (tailgate lock: tailgate latch) boot lid/ tailgate lock Aerial diversity Anti theft alaram led Bonnet contact switch Car access system (left side of dash) Central locking button & hazard warning switch operating unit Computer data lines system Door contact signal Driver's door system lock (driver's door) Electrochromic interior rear view mirror Electronics junction box Footwell module Fuse 15a Fuse 20a Fuse 40a Fuse 5a Gnd Ground Hall sensor signal Hot at all times Hot w/ bistable relay energized Junction box (right side of dash) K-can bus sig Passenger's door system lock (front passenger's door) Rear driver's side system lock Rear passenger's side system lock Siren w/ tilt alarm sensor Soft close drive Term 30f W/ automatic soft close drive W/o automatic X28 1b X382 1b X5 1b X8 1b X9 1b Z10 12b Z10 1b Z10 2b (early production) Z10 5b Z10 6b Z10 7b Anti-theft Wiring Diagram (1 of 2) for BMW X3 28i 2012 List of elements for Anti-theft Wiring Diagram (1 of 2) for BMW X3 28i 2012: 51 (center console assembly) crash safety module 12b 3.0l 3.0l twin turbo A211 1b A212 1b Active starter Aerial sig Bonnet contact switch Brake light switch (top of brake pedal assembly) Brk lt sw sig Bumper aerial (rear bumper) Can2 bus Car access system (left side of dash) Cas bus Clutch module Clutch sig Computer data lines system Digital motor electronics control module (left rear engine compt) Door locks system Driver's side luggage compartment aerial Electronics junction box Eng strt sig Footwell module Front center console interior aerial Fuse 40a Fuse 5a Ground Hot at all times Hot w/ bistable relay energized Junction box (right side of dash) Lin bus sig Passenger's side luggage compartment aerial Rear center console interior aerial Rear fuse holder (rear compt floor board) Sig Starting/charging system Sw sig Term 15 sply Term 15n Term 30 sply Term 30b Term 30b sply Terminal 15n relay Terminal 30b relay Trunk, tailgate, fuel doors system Wake up sig Z10 12b Z10 5b Z10 6b Z10 7b Anti-theft Wiring Diagram (2 of 2) for BMW X3 28i 2012 List of elements for Anti-theft Wiring Diagram (2 of 2) for BMW X3 28i 2012: 32 (steering column) ring aerial Aerial signal Arrest sig Car access system (left side of dash) Cas bus Column lock Dme main relay Door locks system Driver electronic outer door handle module Driver's side exterior aerial Elect steering Electric steering column lock Front passenger's side exterior aerial Gnd Ground Hall sens Hall sens sig Instrument cluster control unit Led activation Passenger electronic outer door handle module Power distribution box (left rear of engine compt) Signal Start-stop button Sw sig Term 15n rly Term 30b rly Wake up sig X28 1b X5 1b Z10 1b Z10 5b Z10 6b
BODY CONTROL MODULES Body Control Modules Wiring Diagram (1 of 2) for BMW X3 28i 2012 List of elements for Body Control Modules Wiring Diagram (1 of 2) for BMW X3 28i 2012: 35 Bi-xenon Brk lt act Computer data lines system Door locks, exterior lights & anti-theft systems Driving lt Drv mdl sply Exterior lights system Flash ind lt Fog lts act Foot lt act Footwell module Fuse 40a Ground Haz sw sig Headlights & exterior light systems Headlights & exterior light systems exterior lights system Headlights system Hi beam hdlp act High beam sw Hot w/ bi-stable relay energized Int lt act Interior lights system Junction box (right side of dash) K-can bus Led activation Lin bus sig Lo beam lt act Locator & ambient lt Memory systems Power windows system Rev lt act Rr fog lt Tail lt act Term 30f, sply Z10 7b Body Control Modules Wiring Diagram (2 of 2) for BMW X3 28i 2012 List of elements for Body Control Modules Wiring Diagram (2 of 2) for BMW X3 28i 2012: 43 (not used) Ambient lt act Anti-theft system Brk lt act Brk sw sig Cons load sig Courtesy lt Courtesy lt act Door locks system Dr contact sig Drv lt act Entrance lt act Exterior lights system Flash ind lamp Flash lt act Fog lt act Footwell module Fuse 30a Fuse 40a Gnd Hall sens sig Headlights system Hi beam lt act Hot w/ bi-stable relay energized Int lt sw sig Interior lights system Junction box (right side of dash) Lic plt lt act Low beam lt sig Power windows system Pw drv act Rear fuse holder (rear compartment floor board) Red Rev lt act Reverse gear sw Rr fog lt act Tail lt act Term 15 sply Term 30f pwr sply Term 30f sply X13 4b Z10 5b Z10 7b
COMPUTER DATA LINES Computer Data Lines Wiring Diagram (1 of 3) for BMW X3 28i 2012 List of elements for Computer Data Lines Wiring Diagram (1 of 3) for BMW X3 28i 2012: 33 (rear of transmission) transfer box All-round vision camera Central gateway module (left side of dash) Central information display Diagnosis bus signal Diagnosis socket Electro- mechanical power steering (steering rack assembly) Ethernet data line Ethernet data signal Flexray bus signal Ground Head unit Head-up display Heating/air conditioning system (center of dash) Instrument cluster control unit K-can bus signal Most bus signal Nca Pnk Pnk/red Pt-can bus signal Red Sound systems Terminal 15 Terminal 30f Vertical dynamics management (right kick panel) W/ radio W/o radio X13 1b X289 1b X401 3b Z10 5b Z10 7b Computer Data Lines Wiring Diagram (2 of 3) for BMW X3 28i 2012 List of elements for Computer Data Lines Wiring Diagram (2 of 3) for BMW X3 28i 2012: 23 Automatic luggage compartment lid actuation (right rear of luggage compt) Car access system (left side of dash) Com-box (left rear cargo area) Controller Diagnosis socket terminating resistor Driver's seat module Electrochromic interior rear view mirror Electronics junction box Footwell module Fuse 5a High variant roof function module (overhead console) Hot w/ bi-stable relay energized Junction box (right side of dash) Pnk/red Red Tire pressure control (right side of dash) Trailer module (rear compartment floor board) Trailer socket W/ combox W/ radio W/o radio & combox X14 1b X382 1b Computer Data Lines Wiring Diagram (3 of 3) for BMW X3 28i 2012 List of elements for Computer Data Lines Wiring Diagram (3 of 3) for BMW X3 28i 2012: 15 (center console) integrated chassis management (early production) (late production) (left side of vehicle chassis) dynamic stability control (dsc) 3.0l 3.0l twin turbo Crash safety module (center console assembly) Digital motor electronics (left rear engine compt) Electronic transmission control Fuel pump control (ekps) Gear selector switch (center console) Parking brake control unit (center rear cargo area) Pnk/red Red X13 2b
COOLING FAN Cooling Fan Wiring Diagram for BMW X3 28i 2012 List of elements for Cooling Fan Wiring Diagram for BMW X3 28i 2012: 49 (3.0l twin turbo) (3.0l) (3.0l) x62790 3.0l 3.0l twin turbo 3.0l twin turbo 3.0l 5b (3.0l twin turbo) A211 1b A211 2b A211 3b A212 1b Bsd bus sig Characteristic map thermostat Computer data lines system Cut-out relay Digital motor electronics control module (left rear engine compt) Early production Elec fan Electric coolant pump (lower front of engine) Electric fan (radiator support) Electric fan cut out relay Engine coolant temperature sensor (front of engine) Front power distribution box Fuse 100a Fuse 50a Fuse 5a Hot at all times Hot w/ terminal 30b relay energized Junction box (right side of dash) Late production Map thermostat Power distribution Power distribution box (left rear of engine compt) Pt-can bus sig Red Sply map Sply pump System Temp sens Temp sens sig Turbo) (3.0l twin x705 1b X430 1b X60003 X6003 X60183 (3.0l) X60572 X6455 (3.0l) z6000 4b (3.0l twin turbo) X671 1b Z10 30b
CRUISE CONTROL Cruise Control Wiring Diagram for BMW X3 28i 2012 List of elements for Cruise Control Wiring Diagram for BMW X3 28i 2012: 32 Accelerator pedal module (accelerator pedal assembly) Actv elect throttle vlv actr Brake light switch (top of brake pedal assembly) Car access system (left side of dash) Computer data lines system Digital motor electronics (dme) control module (left rear engine compt) Elect throttle vlv actr Elect throttle vlv actr sig Electric throttle valve actuator (throttle valve assembly) Electronic steering wheel module Footwell module Fuse 10a Fuse 15a Gnd Gnd elect throttle vlv actr sig Hall sen sig Hall sens gnd Hall sens sig Hall sens sply Hall sensor Hot at all times Junction box (right side of dash) Left multifunction steering wheel switch Nca Pmw-bfi Pt-can bus signal Red Right multi-function steering wheel switch block Steering column switch cluster Terminal 30b pwr sply X6454 Z10 7b
DEFOGGERS Heated Mirrors Wiring Diagram, with LIN bus Function for BMW X3 28i 2012 List of elements for Heated Mirrors Wiring Diagram, with LIN bus Function for BMW X3 28i 2012: 18 Adjustment drive Computer data lines system Driver exterior mirror Driver's door switch block Footwell module Front passenger exterior mirror Fuse 7.5a Hot w/ terminal 30b relay energized Junction box (right side of dash) K-can bus sig Lin bus sig Mirror heater Nca X28 1b X5 1b X521 1b Z10 5b Z10 6b Heated Mirrors Wiring Diagram, without LIN bus Function for BMW X3 28i 2012 List of elements for Heated Mirrors Wiring Diagram, without LIN bus Function for BMW X3 28i 2012: 18 A34 1b Adjustment drive Computer data lines system Driver exterior mirror Driver's door switch block Footwell module Front passenger exterior mirror Fuse 7.5a Hot w/ terminal 30b relay energized Junction box (right side of dash) Junction box electronics Mirror heating Nca X28 1b X5 1b X521 1b Z10 5b Z10 6b Rear Defogger Wiring Diagram for BMW X3 28i 2012 List of elements for Rear Defogger Wiring Diagram for BMW X3 28i 2012: 21 11b 12b 13b Computer data lines system Fuse 100a Fuse 30a Fuse box (right rear compt floor board) Heating/air conditioning system Hot at all times Junction box (right side of dash) Junction box electronics Nca Rear fuse holder (rear compt floor board) Rear window defogger Rear window defogger relay Rear window heated wave trap 2 (bottom left of rear compt) Red X439 1b X439 2b Z10 12b Z10 28b
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for BMW X3 28i 2012 List of elements for Electronic Power Steering Wiring Diagram for BMW X3 28i 2012: 18 Central gateway module (left side of dash) Electromechanical power steering (steering rack assembly) Front power distribution box (left rear of engine compt) Fuse 125a Fuse 5a Ground Hot at all times Hot w/ terminal 15n relay energized Junction box (right side of dash) Power distribution system Pwr steering Red Steering torque sensor Term 15n Term 30 Torq sig X289 1b Z10 22b
ELECTRONIC SUSPENSION Air Suspension Wiring Diagram for BMW X3 28i 2012 List of elements for Air Suspension Wiring Diagram for BMW X3 28i 2012: 25 (center console assembly) crash safety module (left side of vehicle chassis) dynamic stability control (dsc) Air bag sensors Center console control panel Central gateway module (left side of dash) Computer data lines system Drv dyn ctrl sw sig Flexray bus sig Function lighting Fuse 34 5a Ground Hot at all times Integrated chassis management (center console) Junction box (right side of dash) Left front level sensor Left rear level sensor Sensor ground Sensors ground Sig lf level sen Sig,parking aid ctrl Signal, dtc btn Spy lf level sen Spy lr level sen Wake up sig, ter 15 Z10 26b Dynamic Drive Suspension Wiring Diagram for BMW X3 28i 2012 List of elements for Dynamic Drive Suspension Wiring Diagram for BMW X3 28i 2012: 25 11b 428 1b Central gateway module Fuse 20a Fuse 5a Hot at all times Hot w/ terminal 15n relay energized Junction box (right side of dash) Left front coil valve Left front vertical-acceleration sensor Left rear coil valve Nca Pnk Rear fuse holder (rear compt floor board) Right front coil valve Right front vertical-acceleration sensor Right rear coil valve Vertical dynamics management (right kick panel) X0172 X0173 X044 X045 X046 X047 Z10 14b
ENGINE PERFORMANCE
3.0L 3.0L, Engine Performance Wiring Diagram (1 of 5) for BMW X3 28i 2012 List of elements for 3.0L, Engine Performance Wiring Diagram (1 of 5) for BMW X3 28i 2012: 36 (center of intake manifold) (center of intake manifold) disa servo motor 1 (left side of engine block) knock sensor Bsd bus sig Charcoal filter valve Crankshaft sens gnd Crankshaft sens sig Crankshaft sens sply Crankshaft sensor (lower rear of engine block) Cylinder 1-3 Cylinder 4-6 Digital motor electronics (dme) control module (left rear engine compt) Disa act Disa gnd Disa servo motor 2 Disa sply Elec throttle act gnd Elec throttle act sig Elec throttle act sply Elec throttle vlv act Electric-throttle valve actuator (throttle valve assembly) Filter valve sply Gnd Hot-film air mass meter (intake tube assembly) Intake manifold pressure sensor (intake manifold assembly) Knock sens sig Nca Oil condition sensor (base of oil pan) Sens gnd Sens sig Sens sply Sig Starting/charging system Tank vent valve Temp sens sig X60002 3.0L, Engine Performance Wiring Diagram (2 of 5) for BMW X3 28i 2012 List of elements for 3.0L, Engine Performance Wiring Diagram (2 of 5) for BMW X3 28i 2012: 23 (fuel tank assembly) electric fuel pump Computer data lines system Engine breather heater 1 Exhaust camshaft sensor Exhaust vanos solenoid valve (front of engine) Fuel pump Fuel pump control (ekps) (below rear seat assembly) Fuse 20a Gnd Hot w/ terminal 30b relay energized Intake camshaft sensor (front of cylinder head) Intake vanos solenoid valve (front of engine) Nca Oil pressure control valve Oxygen sensor 2 after catalytic converter Pt can h Pt can l Pwr sply Rear fuse holder (rear compt floor board) Red Wake-up X64553 Z10 12b 3.0L, Engine Performance Wiring Diagram (3 of 5) for BMW X3 28i 2012 List of elements for 3.0L, Engine Performance Wiring Diagram (3 of 5) for BMW X3 28i 2012: 49 Act activation Activation Bsd bus sig Coolant pump sply Cooling fans system Ctrl vlv acti Ctrl vlv sply Digital motor electronics (dme) control module (left rear of engine compt) Dme main relay Fuel injection Fuse 100a Fuse 15a Fuse 20a Fuse 40a Fuse box (right rear compt floor board) Gnd Heater sply Hot at all times Ignition & fuel injection relay Map acti Map sply Nca Oxygen sens gnd Oxygen sens sig Oxygen sens sply Power distribution box (left rear of engine compt) Red Sens engi sply Sens gnd Sens sig Sens sply Shield Solenoid vlv sply Sply Temp sens sig Terminal 15 Transfer terminal point Valvetronic position sensor Valvetronic relay Vanos solenoid vlv Variable valve timing gear actuator X60003 X60004 X60005 X60181 X60182 X60189 X6454 Z10 1b 3.0L, Engine Performance Wiring Diagram (4 of 5) for BMW X3 28i 2012 List of elements for 3.0L, Engine Performance Wiring Diagram (4 of 5) for BMW X3 28i 2012: 21 (in exhaust, upstream of catalytic converter) (top of spark plugs) Engine coolant temperature sensor (front of engine) Engine oil pressure sensor Fuel tank leakage diagnostic module (right rear wheelwell) Ignition coil cylinder 1 Ignition coil cylinder 2 Ignition coil cylinder 3 Ignition coil cylinder 4 Ignition coil cylinder 5 Ignition coil cylinder 6 Map thermostat characteristic (lower right front of engine) Nca Oxygen sensor 2 before catalytic converter Oxygen sensor after catalytic converter (in exhaust, downstream of catalytic converter) Oxygen sensor before catalytic converter (in exhaust, upstream of catalytic converter) Plug spark Spark plug X6176 X6177 X62790 3.0L, Engine Performance Wiring Diagram (5 of 5) for BMW X3 28i 2012 List of elements for 3.0L, Engine Performance Wiring Diagram (5 of 5) for BMW X3 28i 2012: 61 Accelerator pedal module (accelerator pedal assembly) Air conditioning system Brake light switch (top of brake pedal assembly) Car access system Car access system (left side of dash) Central gateway module (left side of dash) Computer data lines system Cooling fans system Cut-out relay Diagnosis socket Digital motor electronics (dme) control module (left rear of engine compt) Electric fan Engine start sig Flexray bus sig Footwell module Fuel inj 1 activation Fuel inj 1 sply Fuel inj 2 activation Fuel inj 2 sply Fuel inj 3 activation Fuel inj 3 sply Fuel inj 4 activation Fuel inj 4 sply Fuel inj 5 activation Fuel inj 5 sply Fuel inj 6 activation Fuel inj 6 sply Fuel injector cylinders Fuel tank leakage Fuse 15a Fuse 5a Hal sens gnd Hal sens sig Hal sens sply Hot w/ terminal 30b relay energized Ign coil 1 activation Ign coil 1 sply Ign coil 2 activation Ign coil 2 sply Ign coil 3 activation Ign coil 3 sply Ign coil 4 activation Ign coil 4 sply Ign coil 5 activation Ign coil 5 sply Ign coil 6 activation Ign coil 6 sply Junction box (right side of dash) Lin bus sig Pnk/red Power distribution system Pt-can bus sig Rear fuse holder (rear compt floor board) Red Speed sig Starting/charging system Term 15 sply Term 15 wake up sig Term 30 sply X60006 Z10 7b
3.0L TWIN TURBO 3.0L Twin Turbo, Engine Performance Wiring Diagram (1 of 5) for BMW X3 28i 2012 List of elements for 3.0L Twin Turbo, Engine Performance Wiring Diagram (1 of 5) for BMW X3 28i 2012: 34 (exhaust manifold assembly) wastegate valve pressure converter (in exhaust, upstream of catalytic converter) oxygen sensor before catalytic converter (left side of engine block) knock sensor (left side of engine) quantity control valve Act activation Bsd bus sig Bsd sig Coolant pump Cooling fans system Crankshaft sens gnd Crankshaft sens sig Crankshaft sens sply Crankshaft sensor (lower rear of engine block) Digital motor electronics (dme) control module (left rear of engine compartment) Early production Elec throttle act gnd Elec throttle act sig Electric throttle valve actuator (throttle valve assy) High pressure pump position sensor Intake air temperature/ air pressure sensor (intake air tube ducting) Intake manifold pressure sensor (intake manifold assembly) Intake pipe pres sens Knock sens sig Late production Nca Oil level sensor Oxygen sens sig Sens gnd Sens sig Sens sply Sply Starting/charging system Vlv activation Vlv sply 3.0L Twin Turbo, Engine Performance Wiring Diagram (2 of 5) for BMW X3 28i 2012 List of elements for 3.0L Twin Turbo, Engine Performance Wiring Diagram (2 of 5) for BMW X3 28i 2012: 35 (in exhaust, downstream of catalytic converter) oxygen sensor after catalytic converter Blow-off valve Can bus Characteristic map thermostat (lower right front of engine) Computer data lines system Early production Electric fuel pump (fuel tank assembly) Engine ventilation heating Exhaust camshaft sensor (front of cylinder head) Exhaust vanos solenoid valve (front of engine) Fuel pump Fuel pump control (ekps) Fuse 20a Fuse 5a Gnd Hot w/ terminal 30b relay energized Intake camshaft sensor (front of cylinder head) Intake vanos solenoid valve (front of engine) Junction box (right side of dash) Late production Nca Oil pressure control valve Power distribution system Pt can Pwr sply Rear fuse holder (rear compt floor board) Red Tank vent shut-off valve (early production) Tank vent valve Wake-up X13 1b X664 1b X705 1b Z10 12b Z23 1b 3.0L Twin Turbo, Engine Performance Wiring Diagram (3 of 5) for BMW X3 28i 2012 List of elements for 3.0L Twin Turbo, Engine Performance Wiring Diagram (3 of 5) for BMW X3 28i 2012: 41 (left rear of engine compt) digital motor electronics (dme) control module Activation Digital motor electronics (dme) control module (left rear of engine compt) Diverter vlv sply Dme main relay Exhaust flap electric changeover valve Fuel injection Fuse 100a Fuse 15a Fuse 20a Fuse 40a Fuse box (right rear compartment floor board) Gnd Heater sply Hot at all times Ignition & fuel injection relay Map activation Map sply Meter gnd Meter sig Meter sply Motor position sensor Oil pres ctrl vlv sply Power distribution box (left rear of engine compt) Red Sens gnd Sens sig Sens sply Sply Transfer terminal point Valvetronic actuator motor (top front of cyl head) Valvetronic relay Ventilation activation Vlv activation Vlv sply Z10 1b Z11 1b Z11 3b Z11 4b Z6000 1b Z8 1b 3.0L Twin Turbo, Engine Performance Wiring Diagram (4 of 5) for BMW X3 28i 2012 List of elements for 3.0L Twin Turbo, Engine Performance Wiring Diagram (4 of 5) for BMW X3 28i 2012: 19 (top of spark plugs) Engine coolant temperature sensor (front of engine) Engine oil pressure sensor Engine oil temperature sensor (left side of engine block) Hot film air mass meter (intake tube assembly) Ignition coil cylinder 1 Ignition coil cylinder 2 Ignition coil cylinder 3 Ignition coil cylinder 4 Ignition coil cylinder 5 Ignition coil cylinder 6 Nca Plug spark Rail pressure sensor (engine fuel rail) Spark plug X704 1b Z20 1b Z21 1b Z22 1b 3.0L Twin Turbo, Engine Performance Wiring Diagram (5 of 5) for BMW X3 28i 2012 List of elements for 3.0L Twin Turbo, Engine Performance Wiring Diagram (5 of 5) for BMW X3 28i 2012: 66 Accelerator pedal module (accelerator pedal assembly) Car access system (left side of dash) Car bus sig Central gateway module (left side of dash) Computer data lines system Cooling fans system Cut-out relay Diagnosis socket Digital motor electronics (dme) control module (left rear of engine compt) Early production Electric fan Exh flap sig Flexray bus sig Fuel inj 1 activation Fuel inj 1 sply Fuel inj 2 activation Fuel inj 2 sply Fuel inj 3 activation Fuel inj 3 sply Fuel inj 4 activation Fuel inj 4 sply Fuel inj 5 activation Fuel inj 5 sply Fuel inj 6 activation Fuel inj 6 sply Fuel injectors Fuel tank leakage Fuel tank leakage diagnostic module (right rear wheelwell) Fuse 15a Fuse 5a Hal sens sig Hall sens gnd Hall sens sply Hot at all times Hot w/ Hot w/ terminal 30b relay energized Hot w/ terminal 30f relay energized Ign coil 1 activation Ign coil 1 sply Ign coil 2 activation Ign coil 2 sply Ign coil 3 activation Ign coil 3 sply Ign coil 4 activation Ign coil 4 sply Ign coil 5 activation Ign coil 5 sply Ign coil 6 activation Ign coil 6 sply Junction box (right side of dash) Late production Lin bus sig Natural vacuum leak detection Pnk/red Power distribution system Pressure switch Pt-can bus sig Rear fuse holder (rear compt floor board) Red Start sig Starting/ charging system Term 15 sply Term 15 wake up sig Term 30 sply Terminal 30b relay energized Z10 14b
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for BMW X3 28i 2012 List of elements for Backup Lamps Wiring Diagram for BMW X3 28i 2012: 20 Computer data lines system Electronic transmission control Footwell module Fuse 40a Gear selector switch Gnd Hot w/ bistable relay energized Interference suppressor filter 2 Junction box K-can bus sig Left inner tail light Light reversing Nca Pt-can bus sig Pwr sply Red Reversing lt Right inner tail light Z10 12b Z10 5b Exterior Lamps Wiring Diagram (1 of 2) for BMW X3 28i 2012 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for BMW X3 28i 2012: 41 (left rear vehicle roof) interference suppressor filter 2 A34 3b Brk lt Brk lt sw sig Computer data lines system Door contact sig Flash ind lp Footwell module Fuse 30a Fuse 5a Gnd Hazard warning lights switch/ central locking button operating unit Headlight driver module High beam sw Hot w/ bistable relay energized Ind lp Junction box (right side of dash) Junction box electronics K-can bus sig Led activation Left headlight License plate lt Light side marker direction ind/ Light switch unit Lin bus Lin bus sig Pwr sply Pwr sply 30f Red Right headlight Rr fog lt Serial sig Side lights/ drl light Steering column switch cluster Tail lt Warn lt sw sig Z10 1b Z10 2b Z10 5b Z10 7b Z10 8b Exterior Lamps Wiring Diagram (2 of 2) for BMW X3 28i 2012 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for BMW X3 28i 2012: 33 (left side of dash) car access system (top of brake pedal assembly) brake light switch Auxiliary brake light Brake light Brake light tail light/ Brk lt Computer data lines system Direction ind Dynamic brake light E120 1b E120 2b E67 1b E67 2b K can-h K can-l Left front direction indicator repeater light Left inner taillight Left license plate light Left outer taillight Noise suppressor filter Preparation for trailer socket Rh turn sig Right front direction indicator repeater light Right inner taillight Right license plate light Right outer taillight Tail light/ brake light Trailer module (rear compt floor board) Z10 12b Z10 13b Z10 1b Z10 2b Z10 7b Trailer Tow Wiring Diagram for BMW X3 28i 2012 List of elements for Trailer Tow Wiring Diagram for BMW X3 28i 2012: 32 Brk lt Computer data lines system E67 1b Exterior lights circuit Footwell module Fully automatic trailer towing hitch Fuse 20a Gnd Hot w/ bistable relay energized Hot w/ terminal 30b relay energized Ind lp Junction box (right side of dash) K can-h K can-l Lh tail lt Lh turn sig Lin bus sig Noise suppressor filter Preparation for trailer socket Pwr sply Rear fuse holder (rear compt floor board) Reversing lt Rh tail lt Rh turn sig Rr fog lt Trailer module (rear compt floor board) Trailer socket W/ trailer module W/o trailer module X268 1b X269 1b Z10 14b
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 4) for BMW X3 28i 2012 List of elements for Ground Distribution Wiring Diagram (1 of 4) for BMW X3 28i 2012: 48 12b Automatic luggage compartment lid actuation Boot lid/ tailgate lock Car access system Diagnosis socket Driver electronic outer door handle module Driver exterior mirror Driver's door entrance light Driver's door inner door handle lighting Driver's door pocket lighting Driver's door switch block Driver's door system lock Exterior boot lid button Footwell module Front 2 light center armrest Fuel filter heating Fuel pump control (ekps) Gear selector switch Interior rear lid button Left inner taillight Left license plate light Left outer tail light Left rear footwell light Nca Noise suppressor filter Rear driver side system lock Rear driver's side courtesy lighting Rear driver's side door pocket lighting Rear driver's side entry light Rear driver's side inner door handle lighting Rear driver's side power window switch Rear driver's side seat heating module Rear fuse holder Rear passenger's side seat heating module Rear wiper Right inner taillight Right license plate lamp Right outer tail light Right rear footwell light W/ automatic soft close system W/o automatic soft close system Wiper module X28 1b X521 1b X8 1b Z10 12b Z10 13b Z10 5b Ground Distribution Wiring Diagram (2 of 4) for BMW X3 28i 2012 List of elements for Ground Distribution Wiring Diagram (2 of 4) for BMW X3 28i 2012: 58 12v connection 3 12v connection 4 Blower motor Crash safety module Driver seat backrest width adjustment valve block Driver seat heating module Driver seat module Driver seat pneumatic pump Driver's lumbar support switch Driver's seat belt buckle contact Driver's seat position sensor Dynamistic stability control Electric Electronics junction box Exterior mirror, basic version Exterior mirror, high version Fan Front cigarette lighter 12v connection Front passenger exterior mirror Front passenger seat occupancy detection Front passenger's seat backrest width adjustment valve block Front passenger's seat vacuum pump High variant roof functions module Integrated chassis management Junction box Nca Parking brake button Passenger electronic outer door handle module Passenger's door entrance light Passenger's door inner door handle lighting Passenger's door pocket lighting Passenger's door power window switch Passenger's door system lock Passenger's lumbar support switch Passenger's seat belt buckle contact Passenger's seat heating module Passenger's side seat adjustment switch cluster Rear passenger's side courtesy lighting Rear passenger's side door pocket lighting Rear passenger's side entry light Rear passenger's side inner door handle lighting Rear passenger's side power window switch Rear passenger's side system lock Rear window defogger X12 1b X14 1b X14 2b X5 1b X513 1b X514 1b X9 1b Z10 10b Z10 24b Z10 26b Z10 28b Z10 30b Z10 6b Z10 9b Ground Distribution Wiring Diagram (3 of 4) for BMW X3 28i 2012 List of elements for Ground Distribution Wiring Diagram (3 of 4) for BMW X3 28i 2012: 52 (early production) high range horn (early production) siren w/ tilt alaram sensor (late production) high range horn (late production) siren w/ tilt alaram sensor 12v connection A36 1b All-round vision camera Base plate Central information display Combox Dc/dc converter Dvd charger Electric fan Electro- chemical power steering Fully automatic towing hitch Head unit Heater Hifi amplifier Left fog light Left front direction indicator light repeater Left headlight Left washer nozzle Low range horn Nca Parking brake control unit Power distribution box Rear washer pump Right fog light Right front direction indicator light repeater Right headlight Right washer nozzle Tailer socket switch Top-hifi amplifier Trailer module Trailer socket Tyre pressure control Vertical dynamics management Video module Washer pump Washer pump for headlight washer system Windscreen X252 1b X268 1b X269 1b X29 1b X401 3b Z10 11b Z10 14b Z10 1b Z10 20b Z10 22b Z10 2b Ground Distribution Wiring Diagram (4 of 4) for BMW X3 28i 2012 List of elements for Ground Distribution Wiring Diagram (4 of 4) for BMW X3 28i 2012: 50 (3.0l twin turbo) 3.0l 3.0l twin turbo A/c compressor Auc sensor Automatic luggage compartment lid actuation Basic variant roof functions module Bonnet contact switch Brake fluid level switch Brake light switch Camera based driver assistance systems Car access system Central gateway module Clutch module Controller Coolant level switch Diagnosis socket Digital motor electronics Electronic coolant pump Electronic transmission control Footwell module Front electric auxiliary heater High variant roof functions module Ignition coil cylinder 1 Ignition coil cylinder 2 Ignition coil cylinder 3 Ignition coil cylinder 4 Ignition coil cylinder 5 Ignition coil cylinder 6 Junction box Left headlight Left rear switch seat heating Reverse gear switch Right headlight Right rear switch seat heating Transfer box Washer fluid level switch X04000 X13 2b X13 4b X60005 X6176 X6177 X6454 (3.0l) z6000 1b (3.0l twin turbo) X6455 (3.0l) z6000 4b (3.0l twin turbo) Z10 7b Z10 8b Z20 ib Z21 1b (3.0l twin turbo) Z22 1b (3.0l twin turbo)
HEADLIGHTS Headlights Wiring Diagram (1 of 2) for BMW X3 28i 2012 List of elements for Headlights Wiring Diagram (1 of 2) for BMW X3 28i 2012: 44 (w/ led) daytime driving/ side light A34 3b Bi-xenon shutter Computer data lines system Daytime driving/ side light (w/o led) Electrochromic interior rearview mirror Electronics junction box Fog lt Footwell module Fuse 10a Fuse 30a Fuse 40a Fuse 5a Gnd Headlight beam height control drive unit Headlight driver module Hi beam head light Hi beam sw High beam High beam assistant sensor & control Hot w/ bi-stable relay energized Hot w/ terminal 15n relay energized Junction box (right side of dash) K-can bus sig Left fog light Left headlight Lin bus sig Low beam Low beam lt Red Right fog light Shutter bi-xenon Side lights Steering column switch cluster Swivel module Turn W/ xenon W/o xenon X252 1b Xenon control module Xenon lamp Z1 3b Z10 1b Z10 7b Headlights Wiring Diagram (2 of 2) for BMW X3 28i 2012 List of elements for Headlights Wiring Diagram (2 of 2) for BMW X3 28i 2012: 27 (w/ led) daytime driving/ side lights Basic variant roof functions module Driving/side lights daytime (w/o led) Fuse 40a Fuse 7.5a Head light range control drive unit Headlight driver module High variant roof functions module Hot w/ bistable relay energized Hot w/ terminal 30b relay energized Junction box (right side of dash) Light switch unit Low beam Rain/driving lights/ condensation/ solar sensor (rain sensor: center of windshield) (solar sensor: top center of dash) Rear fuse holder (rear compt floor board) Right headlight Shutter bi-xenon Swivel module Turn W/ basic variant W/ high variant W/ xenon W/o xenon Xenon control module Xenon lamp high beam Z10 2b Z10 8b
HORN Horn Wiring Diagram for BMW X3 28i 2012 List of elements for Horn Wiring Diagram for BMW X3 28i 2012: 17 13b Computer data lines system Fuse 15a Fuse 250a Fuse box (right rear compt floor board) High range horn Horn button Horn relay Hot at all times Junction box (right side of dash) Junction box electronics Low range horn Red Steering column switch cluster Terminal 30b relay Z10 1b Z10 2b
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for BMW X3 28i 2012 List of elements for Instrument Cluster Wiring Diagram for BMW X3 28i 2012: 20 Anti-theft system Computer data lines system Coolant level switch (lant recovery tank) Electronics junction box Fuel level sensor 1 Fuel level sensor 2 Fuse 5a Head-up display Hot at all times Hot w/ terminal 30b relay energized Instrument cluster control unit Junction box (right side of dash) Nca Outside temperature sensor (left front wheelwell) Red Sound systems X253 1b X94 1b Z10 6b Z10 7b
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram (1 of 2) for BMW X3 28i 2012 List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for BMW X3 28i 2012: 40 Ambient light Boot lid/ tailgate lock (tailgate latch) Computer data lines system Early production Electronics junction box Fuse 10a Fuse 5a Fuse 7.5a Glove compartment light High variant roof functions module (w/ high variant) basic variant roof functions module (w/ basic variant) (w/ high variant: overhead console) Hot at all times Hot w/ terminal 30b relay energized Interior light Junction box (right side of dash) Late production Left front vanity mirror light Left front vanity mirror switch Left map reading light Left rear interior light Light ambient Light interior Luggage compartment light Luggage compartment light 2 Noise suppressor filter Reading light Rear fuse holder (rear compartment floor board) Right front vanity mirror light Right front vanity mirror switch Right map reading light Right rear interior light W/ automatic soft close system W/ basic variant W/ high variant W/ reading light W/o automatic soft close system W/o reading light X483 1b Z10 12b Z10 6b Z10 8b Courtesy Lamps Wiring Diagram (2 of 2) for BMW X3 28i 2012 List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for BMW X3 28i 2012: 28 Computer data lines system Courtesy lighting Driver's door entrance light Entrance lt Footwell lt Footwell module Interior lt K-can bus sig Left front footwell light Left rear footwell light Nca Passenger's door entrance light Rear driver's side courtesy lighting Rear driver's side entry light Rear passenger's side courtesy lighting Rear passenger's side entry light Right front footwell light Right rear footwell light Signal, switch X28 1b X483 1b X5 1b X8 1b X9 1b Z10 12b Z10 13b Z10 5b Z10 6b Instrument Illumination Wiring Diagram (1 of 2) for BMW X3 28i 2012 List of elements for Instrument Illumination Wiring Diagram (1 of 2) for BMW X3 28i 2012: 42 Ambient light Ambient lt Center console control panel Center front ventilation grille Central locking button hazard warning switch operating unit Computer data lines system Courtesy lamps circuit Dvd changer Dvd changer (early production) Electronics junction box Footwell module Front center armrest light Front cigarette lighter 12v connection Fuse 40a Gnd Head unit Head unit (early production) Heating/air conditioning system (center of dash) High variant roof functions module (w/ high variant) basic variant roof functions module (w/ basic variant) (w/ high variant: overhead console) Hot w/ bistable relay energized Integrated chassis management (center console) Junction box (right side of dash) K-can bus sig Late production Left front ventilation grille Left rear interior light Parking brake button Pwr sply Rear fuse holder (rear compartment floor board) Right front ventilation grille Right rear interior light W/ basic variant W/ dvd W/ high variant W/o dvd X382 1b X401 3b X483 1b Z10 26b Z10 5b Z10 6b Z10 8b Instrument Illumination Wiring Diagram (2 of 2) for BMW X3 28i 2012 List of elements for Instrument Illumination Wiring Diagram (2 of 2) for BMW X3 28i 2012: 19 Driver's door inner door handle lighting Driver's door pocket lighting Front 2 center armrest light Interior rear lid button Passenger's door inner door handle lighting Passenger's door pocket lighting Passenger's door power window switch Rear driver's side door pocket lighting Rear driver's side inner door handle lighting Rear driver's side power window switch Rear passenger's side door pocket lighting Rear passenger's side inner door handle lighting Rear passenger's side power window switch X28 1b X5 1b X8 1b X9 1b Z10 5b Z10 6b
MEMORY SYSTEMS Driver"s Memory Seat Wiring Diagram (1 of 2) for BMW X3 28i 2012 List of elements for Driver"s Memory Seat Wiring Diagram (1 of 2) for BMW X3 28i 2012: 25 Actuator motor Computer data lines system Driver's seat backrest heating Driver's seat cushion heating Driver's seat forward/ backward adjustment drive unit (driver's seat) Driver's seat height adjustment drive unit (driver's seat) Driver's seat module (under driver's seat) Drv angle adj Drv height adj Footwell module Fuse 30a Fwd/bwd adj Gnd Gnd hall sens Hall sens sig Hall sensor Hot w/ terminal 30b relay energized Junction box (right side of dash) K-can bus sig Pwr sply Seat backrest Seat cushion Sig temp sens X14 1b Z10 9b Driver"s Memory Seat Wiring Diagram (2 of 2) for BMW X3 28i 2012 List of elements for Driver"s Memory Seat Wiring Diagram (2 of 2) for BMW X3 28i 2012: 12 Actuator motor Backrest angle Driver's seat angle adjustment drive unit (driver's seat) Driver's seat backrest angle adjustment drive Driver's seat module (under driver's seat) Driver's side seat adjustment switch cluster Drv adj sw Gnd hall sens Hall sens sig Hall sensor Led activation Switch signal Power Mirrors Wiring Diagram, with Basic Version for BMW X3 28i 2012 List of elements for Power Mirrors Wiring Diagram, with Basic Version for BMW X3 28i 2012: 23 (right side of dash) junction box 2b nca Adjustment drive Camera Computer data lines system Driver's door switch block Driver's exterior mirror Footwell module Front passenger's exterior mirror Fuse 7.5a Heating Hot w/ terminal 30b relay energized Junction box electronics K-can bus high K-can bus low Lin bus sig Navigation system Nca X28 1b X5 1b X521 1b Z10 5b Z10 6b Power Mirrors Wiring Diagram, with High Version for BMW X3 28i 2012 List of elements for Power Mirrors Wiring Diagram, with High Version for BMW X3 28i 2012: 19 Camera Computer data lines system Driver's door switch block Driver's exterior mirror Footwell module Front passenger's exterior mirror Fuse 7.5a Hot w/ terminal 30b relay energized Junction box (right side of dash) K-can bus high K-can bus low Lin bus sig Navigation system Nca X28 1b X5 1b X521 1b Z10 5b Z10 6b
NAVIGATION Lane Departure Warning Wiring Diagram for BMW X3 28i 2012 List of elements for Lane Departure Warning Wiring Diagram for BMW X3 28i 2012: 15 Camera based driver support systems camera heating Camera-based driver assistance systems Computer data lines system Driver assistance control panel Electronics junction box Footwell module Fuse 5a Hot w/ bi-stable relay energized Hot w/ terminal 15n relay energized Junction box (right side of dash) Lane departure warning camera (behind inside rearview mirror) Nca Power distribution system Red Z10 7b Navigation Wiring Diagram, with HIFI Radio (1 of 4) for BMW X3 28i 2012 List of elements for Navigation Wiring Diagram, with HIFI Radio (1 of 4) for BMW X3 28i 2012: 62 & car information computer basic version & navigation system (or red) (w/ head unit basic & w/ car information computer & w/o optional equipment connection mobile devices) glove compartment usb connection 10b 12b 15a (or 20a) Aerial amplifier Aerial diversity Aerial sig Aerial signal Ambient lt Can bus sig Central gateway module (w/ radio bmw professional & navigation system) Computer data lines system Data cable Dvd changer (left rear cargo area) Electrochromic interior rear view mirror Ethernet data Fbas sig Fuse Fuse 5a Gnd Gps aerial sig Head unit (right side of dash) High Hot w/ terminal 30b relay energized Interior lights system Late Late production early production Low freq sig Microphone sig Most bus sig Most data bus circuit Nca Noise suppress0r filter Production Production early Radio sig on Rear fuse holder Rear window aerial Red Roof aerial Sdars aerial Shield Sig microphone Terminal 30b Usb data Usb ground Usb voltage Vics aerial sig Video module (left rear cargo area) W/ head unit high W/ radio bmw business W/ radio bmw professional W/o head unit W/o head unit high W/o navigation system professional W/o video module & w/o dvd changer X382 1b X401 3b Z10 11b Navigation Wiring Diagram, with HIFI Radio (2 of 4) for BMW X3 28i 2012 List of elements for Navigation Wiring Diagram, with HIFI Radio (2 of 4) for BMW X3 28i 2012: 33 (or red) All-round vision camera Base plate Computer data lines system Controller Front center mid- range speaker Front center tweeter Fuse 5a Hot w/ terminal 30b relay energized Left front mid- range speaker 2b Left front tweeter Left rear mid- range speaker 2b Left rear tweeter Nca Rear fuse holder Red Red/ Right front woofer Touch box W/ head unit high W/ head unit high & w/o car information W/ navigation system professional & car information computer high version W/ video module & w/o aii round vision camera W/ video module & w/o dvd changer W/o navigation system professional & car information computer basic version W/o omnidirectional camera & w/ video module & dvd changer W/o video module X28 1b X382 1b X401 3b X8 1b Z10 11b Z10 7b Navigation Wiring Diagram, with HIFI Radio (3 of 4) for BMW X3 28i 2012 List of elements for Navigation Wiring Diagram, with HIFI Radio (3 of 4) for BMW X3 28i 2012: 40 (early production) (late production) (or red) (w/ optional equipment connecting mobile devices) aux-in connection 10b Aux-in connection Connecting mobile devices Early production Fuse 30a Fuse 5a Gnd Head unit basis & Head unit basis & w/o car information Hifi amplifier (left side of cargo area) Hot at all times Hot w/ terminal 30b relay energized Junction box (behind right side of dash) Late production Left front woofer Low frequency Nca Radio sigl on Rear fuse holder Red Red) (or Right front mid- range speaker 2b Right front tweeter Right rear mid- range speaker Right rear tweeter Terminal 30b W/ car information W/ head unit high W/ optional equipment connecting mobile devices W/o head unit high W/o optional equipment X19 1b X382 1b X5 1b X9 1b Z10 11b Navigation Wiring Diagram, with HIFI Radio (4 of 4) for BMW X3 28i 2012 List of elements for Navigation Wiring Diagram, with HIFI Radio (4 of 4) for BMW X3 28i 2012: 35 (w/o optional equipment connecting mobile devices & w/ head unit high & w/o car information) 12b 13b 14b 15b 17b 18b 19b 20b Aerial sig Apix data Can bus sig Central information display Computer data lines system Glove compartment usb connection Ground Head unit Microphone Nca Red Shield Telematics Telematics communication box Usb data Usb gnd Usb voltage Voltage sply W/ head unit basis & w/ car information computer W/ head unit high W/ head unit high & w/o car information computer Wcan aerial X16 1b X382 1b X401 3b Z10 11b Navigation Wiring Diagram, without HIFI Radio (1 of 4) for BMW X3 28i 2012 List of elements for Navigation Wiring Diagram, without HIFI Radio (1 of 4) for BMW X3 28i 2012: 54 (or red) (w/ head unit basis & car information) (w/o optional equippment connection mobile devices) glove compartment usb connection 10b 12b 15a (or 20a) 16b Aerial amplifier Aerial diversity Aerial sig Aerial signal Ambient light Can bus sig Central gateway module (w/ radio bmw professional & navigation system) (left side of dash) Computer data lines system Data cable Early production Early production) Electrochromic interior rear view mirror Ethernet data Fbas sig Fuse Fuse 5a Gnd Gps aerial sig Head unit Hot w/ terminal 30b relay energized Interior lights system Late production Low freq sig Microphone sig Most bus sig Most data bus circuit Nca Noise suppressor filter Professional & navigation system Radio sig on Rear fuse holder (rear compt floor board) Rear window aerial Red Roof aerial Sdars aerial Shield Sig microphone Terminal 30b Usb data Usb ground Usb voltage Vics aerial sig W/ radio bmw W/ radio bmw business W/o carinformation & high X382 1b X401 3b Z10 11b Navigation Wiring Diagram, without HIFI Radio (2 of 4) for BMW X3 28i 2012 List of elements for Navigation Wiring Diagram, without HIFI Radio (2 of 4) for BMW X3 28i 2012: 22 (or red) 17b All-round vision camera Car information computer high version Dvd changer Head unit Interior lights system Most data bus circuit Nca Red Video module (left side of rear compt) W/ head unit high W/ head unit high & w/o car information W/ navigation system professional & W/ navigation system professional & car information computer high version W/ video module W/ video moduule & w/o dvd changer W/o all round vision camera & w/ video module, dvd changer W/o head unit high W/o navigation system professional & car information computer basic version W/o video module Z10 11b Navigation Wiring Diagram, without HIFI Radio (3 of 4) for BMW X3 28i 2012 List of elements for Navigation Wiring Diagram, without HIFI Radio (3 of 4) for BMW X3 28i 2012: 33 (or red) Base plate Computer data lines system Controller Fuse 5a Hot at all times Hot w/ trminal 30b relay energized Junction box (right side of dash) Left front mid-range speaker Left front woofer Left rear mid-range speaker Microphone (overhead console) Nca Radio bmw business Radio bmw professional & navigation system Rear fuse holder (rear compt floor board) Red Right front mid-range speaker Right front woofer Right rear mid-range speaker Touchbox W/ head unit high W/ video module & w/o all round vision camera W/ video module & w/o dvd changer W/o video module X16 1b X28 1b X382 1b X5 1b X8 1b X9 1b Z10 11b Z10 7b Navigation Wiring Diagram, without HIFI Radio (4 of 4) for BMW X3 28i 2012 List of elements for Navigation Wiring Diagram, without HIFI Radio (4 of 4) for BMW X3 28i 2012: 37 (or red) 12b 13b 14b 15b 18b 19b 20b Aerial sig Apix data Aux-in connection Can bus sig Central information display Computer data lines system Connecting mobile devices Glove compartment usb connection (w/ head unit high & w/o carinformation w/o optional equippment connection mobile devices) Ground Head unit Head unit basis & w/ car information Head unit high & w/o car information Nca Red Shield Telematics communication box Usb data Usb gnd Usb voltage Voltage sply W/ head unit basis & car information W/ head unit high W/ head unit high & w/o car information W/ optional equipment connecting mobile devices W/o head unit high W/o optional equippment Wlan aerial X401 3b Z10 11b Parking Assistant Wiring Diagram for BMW X3 28i 2012 List of elements for Parking Assistant Wiring Diagram for BMW X3 28i 2012: 25 13b Center console control panel Computer data lines system Controller Footwell module Fuse 250a Fuse 5a Fuse box (right rear compt floor board) Hot at all times Hot w/ terminal 30b relay energized Integrated chassis management (center console) Junction box (right side of dash) Left front center ultrasonic sensor (front bumper cover) Left front outer ultrasonic sensor (front bumper cover) Left rear center ultrasonic sensor (rear bumper) Left rear outer ultrasonic sensor (rear bumper) Red Right front center ultrasonic sensor (front bumper cover) Right front outer ultrasonic sensor (front bumper cover) Right rear center ultrasonic sensor (rear bumper) Right rear outer ultrasonic sensor (rear bumper) X253 1b X258 1b Z10 6b Z10 7b Rear Camera Wiring Diagram for BMW X3 28i 2012 List of elements for Rear Camera Wiring Diagram for BMW X3 28i 2012: 17 All-round vision camera Basic Computer data lines system Exterior mirror camera Fuse 5a Head unit High Hot w/ terminal 15n relay energized Junction box (right side of dash) Left exterior mirror Nca Reversing camera Right exterior mirror X198 1b X199 1b X382 1b Z10 11b
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 7) for BMW X3 28i 2012 List of elements for Power Distribution Wiring Diagram (1 of 7) for BMW X3 28i 2012: 43 2b jump start terminal point 1b 3.0l 3.0l twin turbo Alternator Battery Car access system Digital motor electronics Dme main relay Dynamic stability control (dsc) Electric coolant pump Electric fan cut-out relay Electro mechanical power steering Engine controls system Exhaust flap electric changeover (3.0l twin turbo) Fan more than 600w Fan upto 600w Front electric auxiliary heater Front power distribution box Fuse 100a Fuse 125a Fuse 15a Fuse 20a Fuse 50a Fuse box (right rear compt floor board) Fuse n/a Ignition & fuel injection relay Intelligent battery sensor Nca Power distribution box (left rear of engine compt) Red Safety battery terminal generator Starter To fuse 511 (diagram 2 of 7) To junction box (diagram 2 of 7) Transfer terminal point Valvetronic relay X6005 X60181 X60183 X60189 X60572 X671 1b Z10 1b Power Distribution Wiring Diagram (2 of 7) for BMW X3 28i 2012 List of elements for Power Distribution Wiring Diagram (2 of 7) for BMW X3 28i 2012: 45 (diagram 6 of 7) (rear compt floor board) rear fuse holder (right side of dash) junction box 11b 12b 13b Automatic luggage compartment lid actuation Base plate Bistable relay Central gateway module Diagnosis socket Driver electronic outer door handle module Electronics junction box Footwell module From a fuse 500 (diagram 1 of 7) From intelligent battery sensor (diagram 1 of 7) From terminal 30b relay f Fuse 100a Fuse 10a Fuse 20a Fuse 250a Fuse 30a Fuse 40a Fuse 5a Fuse box (right rear compt floor board) Instrument cluster control unit Natural vacuum leak detection Nca Noise suppressor filter Parking brake control unit Passenger's electronic outer door handle module Rear window defogger relay Red To dc/dc converter 2 (diagram 5 of 7) To fuse 14 (diagram 3 of 7) To fuse 23 (diagram 3 of 7) To terminal 30b relay (diagram 6 of 7) Top-hifi amplifier Trailer module Vertical dynamics management X28 1b X29 1b X401 3b X5 1b Z10 12b Power Distribution Wiring Diagram (3 of 7) for BMW X3 28i 2012 List of elements for Power Distribution Wiring Diagram (3 of 7) for BMW X3 28i 2012: 55 (diagram 2 of 7) (diagram 5 of 7) (right side of dash) junction box 10b Basic variant roof functions module Blower motor Car access system Car access system unit Combox Dynamic stability control (dsc) Electric fan cut-out relay Electronics junction box Footwell module From fuse 2 d (diagram 2 of 7) From fuse 27 c From h fuse 61 (diagram 3 of 7) From terminal 15n relay k Fuse 10a Fuse 15a Fuse 20a Fuse 30a Fuse 40a Fuse 5a Fuse 7.5a Glove compartment light Head-up display Heating/air conditioning system High variant roof function module High variant roof functions module Instrument cluster control Junction box (right side of dash) Light switch unit Parking brake button Preparation for trailer socket Rear wiper relay Red Siren w/ tilt alarm sensor Steering column switch cluster Tank vent shutoff valve Tank vent valve Terminal 30b relay To fuse 32 (diagram 4 of 7) To terminal 30b relay (diagram 3 of 7) To washer pump relay (diagram 4 of 7) Trailer module Transfer box W/ basic variant roof functions module W/ high variant roof functions module W/ trailer socket W/o trailer socket X13 1b X401 3b X430 1b X664 1b Z10 6b Power Distribution Wiring Diagram (4 of 7) for BMW X3 28i 2012 List of elements for Power Distribution Wiring Diagram (4 of 7) for BMW X3 28i 2012: 54 (diagram 3 of 7) (right side of dash) junction box 12 v connection Basic variant roof functions module Driver's door switch block 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 seat module Dynamic stability control (dsc) (w/o engine start/stop function) Electronic transmission control From fuse 33 l From j rear wiper relay (diagram 3 of 7) From m fuse (diagram 4 of 7) Front cigarette lighter 12 v connection Front passenger exterior mirror Front passenger's seat backrest width adjustment switch Front passenger's seat backrest width adjustment valve block Fuse 10a Fuse 15a Fuse 20a Fuse 30a Fuse 5a Fuse 7.5a Gear selector switch High variant roof functions module Horn relay Integrated chassis management Interior lights system Junction box (right side of dash) Nca Passenger's lumbar support switch Passenger's lumbar support valve block Passenger's side seat adjustment switch cluster Red To fuse 35 (diagram 5 of 7) To fuse 63 (diagram 4 of 7) To terminal 15n relay (diagram 5 of 7) Transfer box W/ basic variant roof functions module W/ high variant roof functions module Washer pump relay Wiper module X12 1b X13 1b X13 2b X14 1b X28 1b X5 1b X513 1b X514 1b X521 1b Z10 6b Power Distribution Wiring Diagram (5 of 7) for BMW X3 28i 2012 List of elements for Power Distribution Wiring Diagram (5 of 7) for BMW X3 28i 2012: 41 (right side of dash) junction box 3.0l 3.0l twin turbo All-round vision camera Auc sensor Camera based driver assistance system Car access system Controller Coolant shutoff valve expansion tank Dc/dc converter Dc/dc converter 2 Digital motor electronics Electro mechanical power steering Electrochromic interior rear view mirror Electronics junction box Engine breather heater From horn n relay (diagram 4 of 7) From o fuse 67 (diagram 4 of 7) From p fuse 43 (diagram 5 of 7) From rear fuse holder (diagram 2 of 7) From rear fuse holder (diagram 6 of 7) From rear fuse holder (diagram 7 of 7) Fuse 10a Fuse 15a Fuse 5a Instrument cluster control unit Junction box (right side of dash) Left rear seat heating switch Nca Red Right rear seat heating switch Start-stop button Steering column switch cluster Terminal 15n relay To fuse 44 (diagram 5 of 7) To rear fuse holder (diagram 7 of 7) To terminal 30b relay (diagram 3 of 7) Vertical dynamics management X289 1b X382 1b Z10 14b Power Distribution Wiring Diagram (6 of 7) for BMW X3 28i 2012 List of elements for Power Distribution Wiring Diagram (6 of 7) for BMW X3 28i 2012: 35 (rear compt floor board) rear fuse holder 10b 12 v connection 2 12 v connection 5 12b Car access system Central information display Combox Dvd charger Dynamic stability control (dsc) (w/ start/stop function & dc/dc converter 2) Dynamic stability control (dsc) (w/ start/stop function & dc/dc converter) Early production From e fuse 201 (diagram 2 of 7) From v fuse 115 (diagram 6 of 7) Fuel tank leakage diagnostic module Fuse 15a Fuse 15a (early production) Fuse 30a Fuse 5a Head unit (radio bmw professional & navigation system) Hifi amplifier Late production Rear fuse holder (rear compt floor board) Terminal 30b relay Tire pressure control To bistable relay (diagram 2 of 7) To dc/dc converter (diagram 5 of 7) To fuse (diagram 6 of 7) To fuse (diagram 7 of 7) Top-hifi amplifier W/ engine start-stop function W/o engine start-stop function X19 1b X401 3b Z10 14b Power Distribution Wiring Diagram (7 of 7) for BMW X3 28i 2012 List of elements for Power Distribution Wiring Diagram (7 of 7) for BMW X3 28i 2012: 40 (rear compt floor board) rear fuse holder 12b Automatic luggage compt lid actuation Base plate Boot lid/ tailgate lock Digital motor electronics Driver's seat heating module Early production From dc/dc converter (diagram 5 of 7) From dc/dc converter 2 (diagram 5 of 7) From w fuse 144 (diagram 6 of 7) From x fuse 153 (diagram 7 of 7) Fuel pump control (ekps) Fully automatic towing hitch Fuse 15a Fuse 20a Fuse 30a Fuse 5a Head unit (radio bmw business) Late production Left head unit Luggage compartment light Luggage compartment light 2 Nca Noise suppressor filter Passenger's seat heating module Rear driver's side seat heating module Rear fuse holder (rear compt floor board) Rear passenger's side seat heating module Red Right head unit To dc/dc converter (diagram 5 of 7) To dc/dc converter 2 (diagram 5 of 7) To fuse (diagram 7 of 7) Trailer socket Video module X12 1b X14 1b X268 1b X529 1b
POWER DOOR LOCKS Power Door Locks Wiring Diagram for BMW X3 28i 2012 List of elements for Power Door Locks Wiring Diagram for BMW X3 28i 2012: 45 (fuel filler flap door) fuel filler flap central locking drive (late production) (overhead console) high variant roof functions module (tailgate lock: tailgate latch) boot lid/ tailgate lock Aerial diversity Anti theft alaram led Bonnet contact switch Car access system (left side of dash) Central locking button & hazard warning switch operating unit Computer data lines system Door contact signal Driver's door system lock (driver's door) Electrochromic interior rear view mirror Electronics junction box Footwell module Fuse 15a Fuse 20a Fuse 40a Fuse 5a Gnd Ground Hall sensor signal Hot at all times Hot w/ bistable relay energized Junction box (right side of dash) K-can bus sig Passenger's door system lock (front passenger's door) Rear driver's side system lock Rear passenger's side system lock Siren w/ tilt alarm sensor Soft close drive Term 30f W/ automatic soft close drive W/o automatic X28 1b X382 1b X5 1b X8 1b X9 1b Z10 12b Z10 1b Z10 2b (early production) Z10 5b Z10 6b Z10 7b
POWER MIRRORS Power Mirrors Wiring Diagram for BMW X3 28i 2012 List of elements for Power Mirrors Wiring Diagram for BMW X3 28i 2012: 18 12b Anti-theft alarm system Basic variant roof functions module Computer data lines system Electrochromic interior rearview mirror Fuse 5a Head unit High beam assistant sensor & control High variant roof functions module Hot w/ terminal 15n relay energized Junction box (right side of dash) Junction box electronics Lin bus sig Nca Ter 15 sply W/ basic variant roof functions module W/ high variant roof functions module X382 1b
POWER SEATS Driver"s Lumbar Wiring Diagram for BMW X3 28i 2012 List of elements for Driver"s Lumbar Wiring Diagram for BMW X3 28i 2012: 13 Driver's lumbar support switch Driver's lumbar support valve block (driver's seat) Driver's seat backrest width adjustment valve block Driver's seat penumatic pump Fuse 10a Hot w/ terminal 30b relay energized Junction box (right side of dash) Valve 1 Valve 2 Valve 3 Valve 4 X513 1b Z10 9b Front Heated Seats Wiring Diagram for BMW X3 28i 2012 List of elements for Front Heated Seats Wiring Diagram for BMW X3 28i 2012: 36 Bus sig Can bus h Can bus l Can2 bus h Can2 bus l Central gateway module (left side of dash) Computer data lines system Dr seat backrest Dr seat cushion Driver's seat backrest heating Driver's seat cushion heating Driver's seat heating module Driver's seat module Fuse 20a Fuse 30a Fuse 7.5a Gnd Heating/air conditioning system Hot w/ bistable relay energized Hot w/ terminal 30b relay energized Junction box (right side of dash) Junction box electronics K lin 6 Pass seat backrest Pass seat cushion Passenger's seat backrest heating Passenger's seat cushion heating Passenger's seat heating module Pwr sply Rear fuse holders (rear compt floor board) Sig temp sens Volt sply X12 1b X14 1b Z10 10b Z10 9b Heated Steering Wheel Wiring Diagram for BMW X3 28i 2012 List of elements for Heated Steering Wheel Wiring Diagram for BMW X3 28i 2012: 13 Computer data lines system Electronic steering wheel module Electronics junction box Fuse 10a Gnd Hot w/ terminal 15n relay energized Junction box (right side of dash) Nca Sply Steering column switch cluster Steering wheel heater Steering wheel heating switch Vibration motor Orthopedic Seats Wiring Diagram for BMW X3 28i 2012 List of elements for Orthopedic Seats Wiring Diagram for BMW X3 28i 2012: 17 Driver's lumbar support switch Driver's lumbar support valve block (driver's seat) Driver's seat backrest width adjustment switch Driver's seat backrest width adjustment valve block Driver's seat pneumatic pump Front passenger's seat backrest width adjustment switch Front passenger's seat backrest width adjustment valve block Front passenger's seat pneumatic pump Fuse 10a Hot w/ terminal 30b relay energized Junction box (right side of dash) Passenger lumbar support switch Passenger lumbar support switch block X513 1b X514 1b Z10 10b Z10 9b Passenger Power Seat Wiring Diagram for BMW X3 28i 2012 List of elements for Passenger Power Seat Wiring Diagram for BMW X3 28i 2012: 10 Fuse 30a Hot w/ terminal 30b relay energized Junction box (right side of dash) Passenger's seat backrest angle adjustment drive (front passenger's seat) Passenger's seat forward/ backward adjustment drive (front passenger's seat) Passenger's seat height adjustment drive (front passenger's seat) Passenger's seat tilt adjustment drive Passenger's side seat adjustment switch cluster X12 1b Z10 10b Passenger"s Lumbar Wiring Diagram for BMW X3 28i 2012 List of elements for Passenger"s Lumbar Wiring Diagram for BMW X3 28i 2012: 13 Front passenger's seat backrest width adjustment valve block Front passenger's seat pneumatic pump Fuse 10a Hot w/ terminal 30b relay energized Junction box (right side of dash) Passenger's lumbar support switch Passenger's lumbar support valve block Valve 1 Valve 2 Valve 3 Valve 4 X514 1b Z10 10b Rear Heated Seats Wiring Diagram for BMW X3 28i 2012 List of elements for Rear Heated Seats Wiring Diagram for BMW X3 28i 2012: 18 Auc sensor Computer data lines system Fuse 20a Fuse 5a Hot w/ terminal 30b relay energized Junction box (right side of dash) Junction box electronics Left rear seat heating switch Rear driver's side seat backrest heating Rear driver's side seat cushion heating Rear driver's side seat heating module Rear fuse holder (rear compt floor board) Rear passenger's side seat backrest heating Rear passenger's side seat cushion heating Rear passenger's side seat heating module Right rear seat heating switch Z10 12b Z10 8b
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for BMW X3 28i 2012 List of elements for Power Top/Sunroof Wiring Diagram for BMW X3 28i 2012: 21 Avn slide Avn snf sd dv Computer data lines system Fuse 20a Fuse 5a Fuse 7.5a Gnd Hall senr sig High variant roof function module Hot at all times Hot w/ terminal 30b relay energized Junction box (right side of dash) K-can bus sig Power distribution system Red Senr gnd Slide/tilt sunroof drive unit Sunroof shade drive Term 30 Z10 6b Z10 8b
POWER WINDOWS Power Windows Wiring Diagram for BMW X3 28i 2012 List of elements for Power Windows Wiring Diagram for BMW X3 28i 2012: 32 30f pwr sply Computer data lines system Driver drive power window Driver's door switch block Driver's side rear power window drive Driver's side rear power window switch Drv actv Electronics junction box Footwell module Fuse 30a Fuse 7.5a Hall sens sig Hot at all times Hot w/ bi-stable relay energized Interior lights system Junction box (right side of dash) K-can2 h K-can2 l K-lin1 Nca Passenger drive power window Passenger's door power window switch Passenger's side rear power window drive Passenger's side rear power window switch Red X28 1b X5 1b X521 1b X8 1b X9 1b Z10 5b Z10 6b
RADIO Base Radio Wiring Diagram (1 of 4) for BMW X3 28i 2012 List of elements for Base Radio Wiring Diagram (1 of 4) for BMW X3 28i 2012: 54 (or red) (w/ head unit basis & car information) (w/o optional equippment connection mobile devices) glove compartment usb connection 10b 12b 15a (or 20a) 16b Aerial amplifier Aerial diversity Aerial sig Aerial signal Ambient light Can bus sig Central gateway module (w/ radio bmw professional & navigation system) (left side of dash) Computer data lines system Data cable Early production Early production) Electrochromic interior rear view mirror Ethernet data Fbas sig Fuse Fuse 5a Gnd Gps aerial sig Head unit Hot w/ terminal 30b relay energized Interior lights system Late production Low freq sig Microphone sig Most bus sig Most data bus circuit Nca Noise suppressor filter Professional & navigation system Radio sig on Rear fuse holder (rear compt floor board) Rear window aerial Red Roof aerial Sdars aerial Shield Sig microphone Terminal 30b Usb data Usb ground Usb voltage Vics aerial sig W/ radio bmw W/ radio bmw business W/o carinformation & high X382 1b X401 3b Z10 11b Base Radio Wiring Diagram (2 of 4) for BMW X3 28i 2012 List of elements for Base Radio Wiring Diagram (2 of 4) for BMW X3 28i 2012: 22 (or red) 17b All-round vision camera Car information computer high version Dvd changer Head unit Interior lights system Most data bus circuit Nca Red Video module (left side of rear compt) W/ head unit high W/ head unit high & w/o car information W/ navigation system professional & W/ navigation system professional & car information computer high version W/ video module W/ video moduule & w/o dvd changer W/o all round vision camera & w/ video module, dvd changer W/o head unit high W/o navigation system professional & car information computer basic version W/o video module Z10 11b Base Radio Wiring Diagram (3 of 4) for BMW X3 28i 2012 List of elements for Base Radio Wiring Diagram (3 of 4) for BMW X3 28i 2012: 33 (or red) Base plate Computer data lines system Controller Fuse 5a Hot at all times Hot w/ trminal 30b relay energized Junction box (right side of dash) Left front mid-range speaker Left front woofer Left rear mid-range speaker Microphone (overhead console) Nca Radio bmw business Radio bmw professional & navigation system Rear fuse holder (rear compt floor board) Red Right front mid-range speaker Right front woofer Right rear mid-range speaker Touchbox W/ head unit high W/ video module & w/o all round vision camera W/ video module & w/o dvd changer W/o video module X16 1b X28 1b X382 1b X5 1b X8 1b X9 1b Z10 11b Z10 7b Base Radio Wiring Diagram (4 of 4) for BMW X3 28i 2012 List of elements for Base Radio Wiring Diagram (4 of 4) for BMW X3 28i 2012: 37 (or red) 12b 13b 14b 15b 18b 19b 20b Aerial sig Apix data Aux-in connection Can bus sig Central information display Computer data lines system Connecting mobile devices Glove compartment usb connection (w/ head unit high & w/o carinformation w/o optional equippment connection mobile devices) Ground Head unit Head unit basis & w/ car information Head unit high & w/o car information Nca Red Shield Telematics communication box Usb data Usb gnd Usb voltage Voltage sply W/ head unit basis & car information W/ head unit high W/ head unit high & w/o car information W/ optional equipment connecting mobile devices W/o head unit high W/o optional equippment Wlan aerial X401 3b Z10 11b Hifi Radio Wiring Diagram (1 of 4) for BMW X3 28i 2012 List of elements for Hifi Radio Wiring Diagram (1 of 4) for BMW X3 28i 2012: 62 & car information computer basic version & navigation system (or red) (w/ head unit basic & w/ car information computer & w/o optional equipment connection mobile devices) glove compartment usb connection 10b 12b 15a (or 20a) Aerial amplifier Aerial diversity Aerial sig Aerial signal Ambient lt Can bus sig Central gateway module (w/ radio bmw professional & navigation system) Computer data lines system Data cable Dvd changer (left rear cargo area) Electrochromic interior rear view mirror Ethernet data Fbas sig Fuse Fuse 5a Gnd Gps aerial sig Head unit (right side of dash) High Hot w/ terminal 30b relay energized Interior lights system Late Late production early production Low freq sig Microphone sig Most bus sig Most data bus circuit Nca Noise suppress0r filter Production Production early Radio sig on Rear fuse holder Rear window aerial Red Roof aerial Sdars aerial Shield Sig microphone Terminal 30b Usb data Usb ground Usb voltage Vics aerial sig Video module (left rear cargo area) W/ head unit high W/ radio bmw business W/ radio bmw professional W/o head unit W/o head unit high W/o navigation system professional W/o video module & w/o dvd changer X382 1b X401 3b Z10 11b Hifi Radio Wiring Diagram (2 of 4) for BMW X3 28i 2012 List of elements for Hifi Radio Wiring Diagram (2 of 4) for BMW X3 28i 2012: 33 (or red) All-round vision camera Base plate Computer data lines system Controller Front center mid- range speaker Front center tweeter Fuse 5a Hot w/ terminal 30b relay energized Left front mid- range speaker 2b Left front tweeter Left rear mid- range speaker 2b Left rear tweeter Nca Rear fuse holder Red Red/ Right front woofer Touch box W/ head unit high W/ head unit high & w/o car information W/ navigation system professional & car information computer high version W/ video module & w/o aii round vision camera W/ video module & w/o dvd changer W/o navigation system professional & car information computer basic version W/o omnidirectional camera & w/ video module & dvd changer W/o video module X28 1b X382 1b X401 3b X8 1b Z10 11b Z10 7b Hifi Radio Wiring Diagram (3 of 4) for BMW X3 28i 2012 List of elements for Hifi Radio Wiring Diagram (3 of 4) for BMW X3 28i 2012: 40 (early production) (late production) (or red) (w/ optional equipment connecting mobile devices) aux-in connection 10b Aux-in connection Connecting mobile devices Early production Fuse 30a Fuse 5a Gnd Head unit basis & Head unit basis & w/o car information Hifi amplifier (left side of cargo area) Hot at all times Hot w/ terminal 30b relay energized Junction box (behind right side of dash) Late production Left front woofer Low frequency Nca Radio sigl on Rear fuse holder Red Red) (or Right front mid- range speaker 2b Right front tweeter Right rear mid- range speaker Right rear tweeter Terminal 30b W/ car information W/ head unit high W/ optional equipment connecting mobile devices W/o head unit high W/o optional equipment X19 1b X382 1b X5 1b X9 1b Z10 11b Hifi Radio Wiring Diagram (4 of 4) for BMW X3 28i 2012 List of elements for Hifi Radio Wiring Diagram (4 of 4) for BMW X3 28i 2012: 35 (w/o optional equipment connecting mobile devices & w/ head unit high & w/o car information) 12b 13b 14b 15b 17b 18b 19b 20b Aerial sig Apix data Can bus sig Central information display Computer data lines system Glove compartment usb connection Ground Head unit Microphone Nca Red Shield Telematics Telematics communication box Usb data Usb gnd Usb voltage Voltage sply W/ head unit basis & w/ car information computer W/ head unit high W/ head unit high & w/o car information computer Wcan aerial X16 1b X382 1b X401 3b Z10 11b MOST Data Bus Wiring Diagram for BMW X3 28i 2012 List of elements for MOST Data Bus Wiring Diagram for BMW X3 28i 2012: 9 Central gateway module (left side of dash) Com-box Dvd changer Head unit Instrument cluster control unit Optical-fiber cable connector Top hifi amplifier Video module (left side of rear compt) X401 2b Top Hifi Radio Wiring Diagram for BMW X3 28i 2012 List of elements for Top Hifi Radio Wiring Diagram for BMW X3 28i 2012: 31 Front center mid- range speaker Front center tweeter Fuse 40a Fuse 5a Fuse box (right rear compt floor board) Hot at all times Hot w/ terminal 30b relay energized Left front mid- range speaker Left front tweeter Left front woofer Left rear mid- range speaker Left rear mid- range speaker 2 Left rear tweeter Left rear tweeter 2 Most data bus circuit Rear fuse holder (rear compt floor board) Right front mid- range speaker Right front tweeter Right front woofer Right rear mid- range speaker Right rear mid- range speaker 2 Right rear tweeter Right rear tweeter 2 Top-hifi amplifier X28 1b X382 1b X410 3b X5 1b X8 1b X9 1b Z10 11b Video System Wiring Diagram for BMW X3 28i 2012 List of elements for Video System Wiring Diagram for BMW X3 28i 2012: 17 Aerial amplifier Aerial amplifier 2 Dvd changer Fuse 5a Head unit Hot w/ terminal 30b relay energized Left side window aerial Most data bus circuit Nca Rear fuse holder (rear compt floor board) Red Right side window aerial Video module (left side of rear compt) W/ all round vision camera & W/ all round vision camera & w/o dvd changer W/o omnidirectional camera Z10 11b
SHIFT INTERLOCK Shift Interlock Wiring Diagram for BMW X3 28i 2012 List of elements for Shift Interlock Wiring Diagram for BMW X3 28i 2012: 25 11b Can bus sig Computer data lines system Dynamic stability control (dsc) (left side of vehicle chassis) Fuse 30a Fuse 5a Gnd Hot at all times Interior lights system Junction box (right side of dash) Left drive parking brake (left drive wheel hub assembly) Lh prk brk Parking brake button (base of parking brake lever) Parking brake control unit (center rear cargo area) Prk brk sig Rear fuse holder (rear compartment floor board) Red Rh prk brk Right drive parking brake (right drive wheel hub assembly) Speed sig Temp sens Terminal 30 Wake-up sig Z10 14b Z10 6b
STARTING/CHARGING Charging Wiring Diagram for BMW X3 28i 2012 List of elements for Charging Wiring Diagram for BMW X3 28i 2012: 19 3.0l 3.0l twin turbo Alternator Battery Digital motor electronics control module (left rear engine compt) Front power distribution box (left rear of engine compt) Fuse box Fuse n/a Intelligent battery sensor Jump start terminal point Junction box (right side of dash) Junction box electronic Nca Power distribution system Red Safety battery terminal generator Starter Transfer terminal point X60002 Starting Wiring Diagram for BMW X3 28i 2012 List of elements for Starting Wiring Diagram for BMW X3 28i 2012: 23 3.0l 3.0l twin turbo Battery Car access system (left side of dash) Charging circuit Computer data lines system Digital motor electronics control module (left rear engine compt) Electronic transmission control Front power distribution box (left rear of engine compt) Fuse 40a Hot at all times Jump start terminal point Junction box (right side of dash) Nca Power distribution system Red Safety battery terminal generator Start-stop button Starter Transfer terminal point X13 1b X671 1b Z10 5b
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 3) for BMW X3 28i 2012 List of elements for Supplemental Restraints Wiring Diagram (1 of 3) for BMW X3 28i 2012: 32 (left side of dash) car access system (usa) left front air bag sensor (usa) left front door air bag sensor (usa) right front air bag sensor (usa) right front door air bag sensor Air bag act pos con Air bag indicator lamp Air bag sen pos con Air bag sensor Belt ten act pos con Computer data lines system Crash safety module (center console assembly) Driver side air bag inflator assembly (steering wheel) Fuse 40a Fuse 7.5a Ground Hall senser sig High variant roof function module (overhead console) Hot at all times Hot w/ terminal 30b relay energized Junction box (right side of dash) Lin bus sig Pass air bag deact Pass seat occ det Passenger front seat occupancy detection Passenger side air bag inflator assembly (top right side of dash) Power distribution system Pt-can bus sig Red Right head airbag inflator assembly (top right of rear compartment) Sig seat belt buck con Z10 26b Supplemental Restraints Wiring Diagram (2 of 3) for BMW X3 28i 2012 List of elements for Supplemental Restraints Wiring Diagram (2 of 3) for BMW X3 28i 2012: 13 (center console) (usa or w/ vertical dynamics management) integrated chassis management (driver seat safety belt buckle assembly) driver seat belt buckle contact (passenger seat safety belt buckle assembly) passenger's seat belt buckle contact (usa w/o memory) driver seat position sensor Driver retractor tensioner Driver seat generator active head restraint Front passenger retractor tensioner Left b-pillar air bag sensor Left head air bag inflator assembly (top left of rear compartment) Passenger's seat active generator head restraint Red Right b-pillar air bag sensor Z10 26b Supplemental Restraints Wiring Diagram (3 of 3) for BMW X3 28i 2012 List of elements for Supplemental Restraints Wiring Diagram (3 of 3) for BMW X3 28i 2012: 14 Air bag act pos Combox (left rear cargo area) Computer data lines system Crash safety module (center console assembly) Driver's air bag inflator assembly (steering wheel) Driver's knee air bag inflator assembly Eme call sig Nca Passenger's air bag inflator assembly (top right side of dash) Pt-can bus sig Steering column switch cluster Terminal generator safety battery Trg act pos W-up ter 15
TRANSMISSION A/T Wiring Diagram for BMW X3 28i 2012 List of elements for A/T Wiring Diagram for BMW X3 28i 2012: 21 (center console) Can bus sig Computer data lines system Electronic transmission control Fuse 10a Fuse 7.5a Gear selector switch Gnd Hot w/ terminal 30b relay energized Junction box (right side of dash) Junction box electronics Left shift paddle Pnk Red Right shift paddle Shift paddle Steering column switch cluster Wake up sig X13 2b X6454 (3.0l) z6000 1b (3.0l twin turbo) Z10 5b AWD Wiring Diagram for BMW X3 28i 2012 List of elements for AWD Wiring Diagram for BMW X3 28i 2012: 12 (3.0l) x6454 z6000 1b (3.0l twin turbo) Central gateway module (left side of dash) Computer data lines system Fuse 30a Fuse 7.5a Hot at all times Hot w/ terminal 30b relay energized Junction box (right side of dash) Pnk Red Transfer box module (rear compartment floor board) X13 1b
TRUNK, TAILGATE, FUEL DOOR Trunk & Fuel Door Release Wiring Diagram for BMW X3 28i 2012 List of elements for Trunk & Fuel Door Release Wiring Diagram for BMW X3 28i 2012: 46 11b Acoustic sensor automatic luggage compartment lid actuation Automatic luggage compartment lid actuation (right rear of luggage compt) Bonnet contact switch (left front of engine compt) Boot lid automatic soft-close drive Boot lid/ tailgate lock (tailgate lock: tailgate latch) Car access system (left side of dash) Computer data lines system Early production Exterior boot lid button Fuel filler flap central locking drive (fuel filler flap door) Fuse 15a Fuse 40a Fuse 5a Gnd Hall sens sig Hall sens sply Hot at all times Hot w/ terminal 30b relay energized Interior lights system Interior rear lid button Junction box (right side of dash) Junction box electronics K-can bus sig Late production Left rear lid lift drive Lr lid lift drive Nca Noise suppressor filter Pwr sply term 30 Pwr sply term 30b Rear fuse holder (rear compt floor board) Rear lid button on inside of rear lid Red Right rear lid lift drive Rr lid lift drive Shielding Sw sig W/ automatic soft close system W/o automatic soft close system X511 1b X512 1b Z10 12b Z10 5b Z10 7b Z10 8b
WARNING SYSTEMS Warning Systems Wiring Diagram for BMW X3 28i 2012 List of elements for Warning Systems Wiring Diagram for BMW X3 28i 2012: 7 Computer data lines system Fuse 5a Hot w/ terminal 30b relay energized Power distribution system Rear fuse holder (rear compartment floor board) Tire pressure control (right side of dash) Z10 14b
WIPER/WASHER Wiper/Washer Wiring Diagram for BMW X3 28i 2012 List of elements for Wiper/Washer Wiring Diagram for BMW X3 28i 2012: 42 13b Basic variant roof functions module Central gateway module (left side of dash) Computer data lines system Computer data lines syster Electro-chromic interior rear view mirror Fuse 20a Fuse 250a Fuse 30a Fuse 7.5a Fuse box (right rear compt floor board) Gnd Headlight washer pump (washer fluid reservoir) High variant roof functions module Hot at all times Hot w/ terminal 30b relay energized Instrument cluster control unit Junction box (right side of dash) Junction box electronics K-can sig Left washer nozzle heated (bottom left of windshield) Outside temperature sensor (left front wheelwell) Pt-can sig Pwr suply Rain/driving lights/ condensation/solar sensor Rear washer pump (washer fluid reservoir) Rear wiper (luggage compt door) Rear wiper relay Red Right washer nozzle heated (bottom right of windshield) W/ basic variant W/ high variant Washer fluid level switch (washer fluid reservoir) Washer pump relay Windscreen washer pump (right side of engine compt) Wiper module X217 1b X253 1b Z10 12b Z10 2b Z10 5b Z10 8b
