AIR CONDITIONING A/C Wiring Diagram (1 of 3) for BMW 740i 1994 https://portal-diagnostov.com/license.html
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Automotive Electricians Portal FZCO
Automotive Electricians Portal FZCO List of elements for A/C Wiring Diagram (1 of 3) for BMW 740i 1994: (below left side of dash) A/c compressor (lower right front of engine) A/c switch Auc switch Automatic air recirculation module (behind left footwell speaker grille) Automatic air recirculation sensor Automatic heating and air conditioning switch Auxiliary fan circuit Blower max switch Blower switch C 1995 vftc Compressor control relay (in front power distribution box) Engine control module (dme) (in e-box) Front defog switch Front defog/auxiliary water pump relay (in front power distribution box) Front power distribution box Fuse 15a Fuse 7.5a G202 G202 (below left side of dash) Hot at all times Hot in run or start Interior lights system Interior temp sensor Left auto switch Left bi-level switch Left floor switch Max heat position switch Nca Park ventilation circuit Rear defog switch Recirc switch Red Right auto switch Right bi- level switch Right floor switch Sensor fan Shield Solid state Temp switch left Temp switch right Water pump (on bulkhead) X612 X682 X693
A/C Wiring Diagram (2 of 3) for BMW 740i 1994 List of elements for A/C Wiring Diagram (2 of 3) for BMW 740i 1994: (below left side of dash) g202 (front right side of engine compartment) pressure switch (in front of plenum) (not (park ventilation relay box) park ventilation circuit A/c relay drive Acc Automatic heating/ a/c control module Aux water pump drive Auxiliary fan circuit Battery Blower motor Blower out stage drive Blower relay (in front power distribution box) C 1995 vftc Computer data lines system Defogger system Defroster flap Diagnosis Final stage unit (in front of plenum) Flap motor drive Flap motor drive-rear Fresh air flap Front defogger Front power distribution box Function light drive Fuse 30a Fuse 7.5a Hot at all times Ignition switch Left footwell flap Left mixing flap Left ventilation flap Left water valve drive Nca Off Power distribution (battery positive terminal) Press. switch/comp/relay R.win func light drive Rear defogger relay Red Right water valve drive Run Solid state Start Temperature distribution potentiometer (above radio) Used) Water valve assembly
A/C Wiring Diagram (3 of 3) for BMW 740i 1994 List of elements for A/C Wiring Diagram (3 of 3) for BMW 740i 1994: (below left (in front of plenum) +5v Air circulation flap motor (below left side of dash) Air volume-left Automatic heating/ a/c control module Battery + for flap Box C 1995 vftc Computer data lines system Defroster flap motor (below left side of dash) Defroster switch Diagnosis Distribution Evaporator temp Evaporator temperature sensor (below left side of dash) Flap motor rt foot Fresh air flap motor (below left side of dash) Front power Fuse 7.5a G202 Ground Hot at all times Ignition Inside temp value Instrument cluster Left footwell flap motor (below left side of dash) Left heat exchanger temperature sensor (below left side of dash) Left heater value Left mixing flap motor (behind center of dash) Left ventilation flap motor (below left side of dash) Max air flow-right Outside temp Outside temperature sensor (on right of blower motor) Rear compartment flap motor (below left front of console) Red Right footwell flap motor (below right side of dash) Right heat exchanger temperature sensor (below right side of dash) Right heater value Right mixing flap Right mixing flap motor (behind center of dash) Right vent flap Right ventilation flap motor (below right side of dash) Set mix value Side of dash) Speed-a signal Starter Starter system Sw for air circ. Sw for climate ctrl Sw for rear defog Sw for rear windows Switch for rear area Temp value-left Temp value-right
Auxiliary Cooling Fan Wiring Diagram for BMW 740i 1994 List of elements for Auxiliary Cooling Fan Wiring Diagram for BMW 740i 1994: (behind right front shock tower) 86b Automatic heating/ a/c control module Auxiliary fan motor Auxiliary relay box (left side of engine compartment) Engine control module (dme) Front power distribution box (rear left side of engine compartment) Fuse f25 30a Fuse f29 7.5a G100 (front left side of engine compt) G101 (front right side of engine compt) High speed relay Hot at all times Hot in start and run Normal speed relay Pressure switch (front right side of engine compt) Temperature switch (top right of radiator)
Park Ventilation Wiring Diagram for BMW 740i 1994
ANTI-LOCK BRAKES Anti-lock Brake Wiring Diagrams, with Traction Control (1 of 2) for BMW 740i 1994 List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (1 of 2) for BMW 740i 1994: 740i/l 750il B+ junction point (rear left side of engine compartment) Cyl 7-12 engine control module relay (right front shock tower) (750il) engine control module relay (right rear of engine compartment) (740i/l) Data link connector (left rear of engine compartment) (750il) (right rear of engine compartment) (740i/l) Engine controls system Front power distribution box (rear left side of engine compartment) Fuse f1 15a G100 (left front of engine compartment) Hot at all times Hot in accy, run or start Left front abs speed sensor Left rear abs speed sensor Left rear plunger valve Nca Pressure sensor/ plunger (left center of engine compartment) Recharging valve Red Right front abs speed sensor Right rear abs speed sensor Right rear plunger valve Slip control module (abs/asc) (right rear side of engine compartment) Soild state Starting/charging system Stop light switch (on brake pedal support bracket)
Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 2) for BMW 740i 1994 List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 2) for BMW 740i 1994: Abs hydraulic init (below brake fluid reservoir) Abs ind Asc ind Asc switch (center of console) Front power distribution box (rear left side of engine compartment) Fuse f17 7.5a G100 (front left side of engine compartment) G202 (left side of i/p) Hot in run and start Instrument cluster Interior light system Left front solenoid valve Left rear solenoid valve Location unavailable Nca Park brake switch (on rear of park brake lever) Pump motor Pump relay Red Right front solenoid valve Right rear solenoid valve Transmission control module (behind right kick panel) Valve relay
Anti-lock Brake Wiring Diagrams, without Traction Control for BMW 740i 1994 List of elements for Anti-lock Brake Wiring Diagrams, without Traction Control for BMW 740i 1994: 87a Abs hydraulic unit (left front corner of engine compartment) Abs ind B+ junction point (rear left side of engine compartment) Brake light switch (on brake pedal support bracket) Data link connector (rear right side of engine compartment) Engine control module (dme) (rear right side of engine compartment) Engine control module relay (rear right side of engine compartment) Front power distribution box (rear left side of engine compartment) Fuse f1 15a Fuse f17 7.5a G100 (front left side of engine compartment) G100 (left front of engine compartment) Hot at all times Hot in accy run and start Hot in run and start Instrument cluster Left front abs speed sensor Left front solenoid valve Left rear abs speed sensor Left rear solenoid valve Nca Pump motor Pump relay Red Right front abs speed sensor Right front solenoid valve Right rear abs speed sensor Right rear solenoid valve Slip control module (abs) (behind right front shock tower) Valve relay
ANTI-THEFT Anti-theft Wiring Diagram for BMW 740i 1994 List of elements for Anti-theft Wiring Diagram for BMW 740i 1994: (not used) Anti-theft control module (alpine) (left of steering column) Anti-theft horn (alpine) (below right side of fresh air cowl) Arrest central Central arrest Check control module (front power distribution box) Crash control module (front power distribution box) Door locks system Driver's side door handle switch Driver's side door jamb switch Driver's side door lock switch Engine hood switch Front power distribution box (left rear corner of engine compt) Fuse f18 15a Fuse f20 7.5a Fuse f41 30a Fusible link b 80a G202 (below left side of dash) G303 (below left side of rear seat) G303 (below of right rear seat) G303 (below right side of rear seat) General module (rear power distribution box) Hood/ radio tamper Horn rly Hot at all times Hot in accy, run or start Interior lights system (trunk light) Left rear door jamb switch Lf door Nca Off On-board computer (center of dash) On-board computer horn relay (below left side of rear seat) Passenger's side door jamb switch Power Radio anti-theft switch Rear door Rear power distribution box (below left side of rear seat) Red Rf door Right rear door jamb switch Seat/mirror/ steering column memory control module (underside of left front seat) Trunk lid Unlock X13025 X18 X19 X255 X501 X648
BODY COMPUTER Body Computer Wiring Diagrams for BMW 740i 1994 List of elements for Body Computer Wiring Diagrams for BMW 740i 1994: Anti-theft system Computer data lines system Engine controls system Front power distribution box (left rear corner of engine compt) Fuse 7.5a G202 (left side of dash, left of steering column) Hot at all times Hot in accy, run and start Hot in run and start Instrument cluster system Interior lights system Nca Not used On-board computer (center of dash) On-board computer temperature sensor (right side of front bumper, on top left side of foglight) Park ventilation relay box (behind right side of dash, above glove box) Phone interface box Sound system Starting/ charging system Warning system
COMPUTER DATA LINES Computer Data Lines for BMW 740i 1994 List of elements for Computer Data Lines for BMW 740i 1994: Abs Abs/asc+t Automatic heating/ a/c control module B+ junction point (front of right front shock tower) Cyl 1-8 fuel pump relay (right rear of engine compartment) Data link connector (right rear of engine compartment) (740i/l) Electronic shock absorber control module (right side of luggage compartment) Electronic throttle control module (behind right front shock tower) Engine control module (behind right right front shock tower) Engine control module relay (right rear of engine compartment) Front power distribution box (left rear of engine compartment) Fuse f28 15a G123 (right rear of engine compartment) General module (below left side of rear seat) Generator Hot at all times Hot in run or start Instrument cluster On-board computer (center of i/p) Oxygen sensor relay (right rear of engine compartment) Red Seat/mirror/steering column/memory control module (under left front seat) Slip control module (behind right front shock tower) Srs control module (below left side of i/p) Starter junction point Starter relay (left rear of engine compartment) Transmission control module (behind right front shock tower) Unloader relay kl61 (left rear of engine compartment)
COOLING FAN Auxiliary Cooling Fan Wiring Diagram for BMW 740i 1994 List of elements for Auxiliary Cooling Fan Wiring Diagram for BMW 740i 1994: 740i/l 740i/l 750il 86b Air conditioning system Automatic heating/ a/c control module (ahead of ihka plenum) Auxiliary fan motor (center front of car) Auxiliary relay box (left side of engine compt) Compressor control relay Engine control module (dme) (behind right front shock tower) Front power distribution box (left rear corner of engine compt) Fuse f25 30a Fuse f29 7.5a G110 (left front of engine compt) G119 (right front of engine compt) High speed relay Hot at all times Hot in start or run Normal speed relay Pressure switch (right front corner of engine compt) Temperature switch (top right side of radiator)
Electrical Box Fan Wiring Diagram for BMW 740i 1994 List of elements for Electrical Box Fan Wiring Diagram for BMW 740i 1994: 740i/l 750il B+ junction point (front of right front shock tower) Cyl 1-6 fuel pump relay (front of right front shock tower) (750il) Cyl 1-6 fuel pump relay (right rear of engine compt) (740i/l) E-box fan (right rear of engine compt) Engine controls system Front power distribution box (rear left side of engine compt) Fuse f17 7.5a G110 (left front of engine compt) G117 (right rear of engine compt) Hot at all times Hot in start or run Instrument cluster Oil pressure switch (left front of engine compt) Oil warning ind Red Temperature switch (behind right front shock tower)
CRUISE CONTROL Cruise Control Wiring Diagram for BMW 740i 1994 List of elements for Cruise Control Wiring Diagram for BMW 740i 1994: Automatic transmission range switch (below center console) Brake- light switch (top of brake pedal support) Cruise control actuator (left side of engine comp) Cruise control module (behind left front speaker) Cruise control switch Decelerate/ set Front power distribution box (left rear of engine comp) Fuse f1 15a Fuse f17 7.5a G303 (ahead of Hot in acc, run and start Hot in run and start Instrument cluster Normal Off Resume Right rear seat) Set accelerate/ Vehicle speed sensor X502
DEFOGGERS Defogger Wiring Diagram for BMW 740i 1994 List of elements for Defogger Wiring Diagram for BMW 740i 1994: (not used) (not used) x3212 Antenna amplifier am/fm Automatic heating & air conditioning switch Automatic heating/ a/c control module (ahead of ihka plenum) Front power distribution box (left rear of engine compt) Fuse f21 7.5a Fuse f46 30a G202 (left side of dash) G303 (below right side of rear seat) Ground Hot at all times Hot in run Hot in run or start Nca Power input Rear defogger (+) Rear defogger relay (rear power distribution box) Rear defogger relay drive Rear defogger/ antenna Rear power distribution box (below left side of rear seat) Rear window defogger switch Starting/ charging system Suppression filter (upper right "c" pillar) Unloader relay (front power distribution box) X379 X610 X613 X614
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram for BMW 740i 1994 List of elements for Electronic Suspension Wiring Diagram for BMW 740i 1994: All times Data link connector (right rear of engine compartment) (740i/l) (left rear of engine compartment) (750il) Edc control switch Edc relay (right side of luggage compartment) Electronic shock absorber control module (edc) (right side of luggage compartment) Front power distribution box (left rear of engine compartment) Fuse f12 15a Fuse f45 30a G304 (below left side rear seat) Hot at Instrument cluster Interior lights system (light switch) Left front edc motor (on left front shock) Left rear edc motor (on left rear shock) Longitudinal acceleration sensor (left side of luggage compartment) Nca Rear power distribution box (below left side of rear seat) Red Right front acceleration sensor (right side of engine compartment) Right front edc motor (on right front shock) Right rear acceleration sensor (right side of luggage compartment) Right rear edc motor (on right rear shock) Rxd Speed output Steering angle sender (on steering column) Txd X263 X502 X945
ENGINE PERFORMANCE 4.0L 4.0L, Electronic Throttle Control Wiring Diagram for BMW 740i 1994 List of elements for 4.0L, Electronic Throttle Control Wiring Diagram for BMW 740i 1994: (ads ii) (right kick panel) Asc throttle position sensor Data link connector (partial) (near e-box) Electronic throttle control module Engine control module (dme) (in e-box) Engine control module relay Front power distribution box (left side of engine compt.) Fuse f60 30a Fuse f62 15a G303 (below right side of rear seat) Hot at all times Nca Slip control module (abs/asc+t) (in e-box) Throttle position motor (left front side of engine compt.)
4.0L, Engine Performance Wiring Diagrams (1 of 3) for BMW 740i 1994 List of elements for 4.0L, Engine Performance Wiring Diagrams (1 of 3) for BMW 740i 1994: "check eng" ind "check engine" ind (behind right front shock tower, in electronics box) engine control relay module (behind right front shock tower, in electronics box) transmission control module Air ctrl valv closed Air ctrl valve open Air flow sig B+ junction point (behind right front shock tower, in electronics box) Camshaft sens gnd Camshaft sig Climate compres sig Com- pressor control relay Crankshaft sens gnd Crankshaft sig Cyl #1 ign sig Cyl #2 ign sig Cyl #3 ign sig Cyl #4 ign sig Cyl #5 ign sig Cyl #6 ign sig Cyl #7 ign sig Cyl #8 ign sig Cylinders 1-4 ho2s Cylinders 5-8 ho2s Ecm relay ctrl Ecm relay sig Electronic throttle control circuit Engine control module (behind right front shock tower, in electronics box) Engine rpm sig Engine speed Evap emiss sig Evaporative emission valve (left front of engine compt) Fuel consum Fuel consum sig Fuel inj #1 Fuel inj #2 Fuel inj #3 Fuel inj #4 Fuel inj #5 Fuel inj #6 Fuel inj #7 Fuel inj #8 Fuel injectors Fuel pump relay G103 (right rear of engine compartment, above electronics box) Gnd Ho2s heat sig Hot at all times Ign sig shield gnd Ignition coils (top right side of engine, above respective cylinders) Injection sig Instrument cluster Maf sens gnd Mass air flow sensor (left front of engine) Nca Red Shielded Slip control module & asc switch Spark plug #1 Spark plug #2 Spark plug #3 Spark plug #4 Speed a-sig Speedo output sig Throttle flap sens Wires X16 X502
4.0L, Engine Performance Wiring Diagrams (2 of 3) for BMW 740i 1994 List of elements for 4.0L, Engine Performance Wiring Diagrams (2 of 3) for BMW 740i 1994: (behind right front shock tower, in electronics box) cylinder 1-8 fuel pump relay (below luggage compartment) fuel pump/ fuel level sensor (right front of engine) camshaft position sensor (right rear of engine compartment, above electronics box) (top right side of engine) crankshaft position/ rpm sensor Electronics box fan Engine coolant temperature sensor (right rear of engine) Engine intake air temperature sensor (front of engine compt) Front power distribution box Fuse f23 15a G103 G103 (right rear of engine compartment, above electronics box) G303 (below right side of rear seat, right of battery) Idle speed control valve Ignition coils (top left side of engine, above respective cylinders) Nca Oil pressure indicator Oil pressure switch (left front of engine) Red Resistor (right rear of engine compartment, in harness channel, near electronics box) Shield Shielded Shielded wires Spark plug #5 Spark plug #6 Spark plug #7 Spark plug #8 Temperature switch (in elec- tronics box) Throttle position sensor (front of engine compt) Wires
4.0L, Engine Performance Wiring Diagrams (3 of 3) for BMW 740i 1994 List of elements for 4.0L, Engine Performance Wiring Diagrams (3 of 3) for BMW 740i 1994: (behind right front shock tower, in electronics box) oxygen sensor relay (not used) A/c compres sig Ac ready sig Acc Air conditioning relay Cly 3-4 knock sens Cyl 1-2 knock sens Cyl 5-6 knock sens Cyl 7-8 knock sens Cyl. 1-2 Cyl. 1-4 heated oxygen sensor (in exhaust pipe) Cyl. 3-4 Cyl. 5-6 Cyl. 5-8 heated oxygen sensor (in exhaust pipe) Cyl. 7-8 Data link conn Data sig Datalink connector (partial) (right rear of engine compartment) Diagnosis (rxd) Diagnosis (txd) Drive away protectn Egs shield gnd Elec thrtl ctrl sig Eng cool temp sens Engine coasting sig Enigine control module (behind right front shock tower, in electronics box) Front power distribution box Fuse f2 7.5a Fuse f28 15a G103 right rear of engine compartment, above electronics box) Head Headlamps & fog lamps Headlights on sig Hot at all times Hot in run or start Ignition switch Intake air temp sens Knock sens gnd Knock sensors (top of engine) Light switch Nca Normal speed relay & pressure switch (a/c system) Off On board computer (right side of radio) On-brd comp sig Park Red Run Shield Slip control module (in electronics box) Start Throttle pos sens Traction ctrl reg sig Transmission control module (in electronics box)
EXTERIOR LIGHTS Exterior Light Wiring Diagram, Canada (1 of 3) for BMW 740i 1994 List of elements for Exterior Light Wiring Diagram, Canada (1 of 3) for BMW 740i 1994: (below right rear seat) (left side of dash) (not used) Battery voltage signal Brake signal Brake- light switch (brake pedal support) Check control module (front power distribution box) Control line Daat line Data line Daytime running lights coding diodes (near light switch) Fog light relay signal Front power distribution box (left rear side of engine compt) Fuse f1 15a Fuse f2 7.5a Fuse f4 7.5a Fuse f5 10a G202 G303 Ground Head Headlights system High beam lights signal High level stop lights signal Hot at all times Hot in accy, run or start Hot in run or start Instrument cluster system Interior lights system Lac Lamp control module (front power distribution box) Left brake light signal Left fog light signal Left front park light signal Left low beam signal Left park light relay (left kick panel) Left park light signal Left tail light signal Lft license plate light signal License plate lights signal Light switch Line data Low beam relay signal Off On-board computer (center of dash) line Park Red Right brake light signal Right fog light signal Right front park light signal Right low beam signal Right park light signal Right park light/license plate light relay (left kick panel) Right tail light signal Rt license plate light signal X18 X19 X501
Exterior Light Wiring Diagram, Canada (2 of 3) for BMW 740i 1994 List of elements for Exterior Light Wiring Diagram, Canada (2 of 3) for BMW 740i 1994: G100 (left front of engine compt) G101 (right front of engine compt) G202 (left side of dash) G303 (below right side of rear seat) G304 (below left side of rear seat) High level stop light Instrument cluster Left brake light Left front park/turn assembly Left front side marker light Left front turn light Left license plate light Left park light Left rear light assembly Left rear park light Left rear side marker light Left rear turn light Left turn indicator Nca Right brake light Right front park/turn assembly Right front side marker light Right front turn light Right license plate light Right park light Right rear light assembly Right rear park light Right rear side marker light Right rear turn light Right turn indicator X17 X502
Exterior Light Wiring Diagram, Canada (3 of 3) for BMW 740i 1994 List of elements for Exterior Light Wiring Diagram, Canada (3 of 3) for BMW 740i 1994: (chime module) (control module) (not used- 1993-94) A/t Anti-theft system (1993-94) not used (1992) Automatic transmission range switch (base of gear selector) Back-up light switch (right side of transmission) Combination switch Crash control module (front power distribution box) Crash information Crash signal Front power distribution box (left rear side of engine compt) Fuse f12 15a Fuse f3 7.5a Fuse f6 15a G202 (below left side of dash) G202 (left side of dash) G304 (below left side of rear seat) General module (rear power distribution box) Hazard flasher relay (front power distribution box) Hazard switch Headlights system Hot at all times Hot in run or start Inertia switch (below left side of rear seat) Interior lights system Left Left back up light Left rear light assembly M/t (1993-94) Memory system Mirrors system (electro- chromic) Nca Off Power distribution Right Right back up light Right rear light assembly Turn signal switch Warning systems X253
Exterior Light Wiring Diagram, USA (1 of 3) for BMW 740i 1994 List of elements for Exterior Light Wiring Diagram, USA (1 of 3) for BMW 740i 1994: (not used) Battery voltage signal Brake signal Brake- light switch (brake pedal support) Check control module (front power distribution box) Control line Daat line Data line Foglight relay signal Front power distribution box (left rear side of engine compt) Fuse f1 15a Fuse f4 7.5a Fuse f5 10a G303 (below right rear seat) Ground Head Headlights system High beam lights signal High level stop lights signal Hot at all times Hot in accy, run or start Instrument cluster system Interior lights system Lamp control module (front power distribution box) Left brake light signal Left foglight signal Left front park light signal Left low beam signal Left park light signal Left tail light signal Lft license plate light signal License plate lights signal Light switch Line data Low beam relay signal Off On-board computer (center of dash) Park Red Right brake light signal Right foglight signal Right front park light signal Right low beam signal Right park light signal Right tail light signal Rt license plate light signal X18 X19 X501
Exterior Light Wiring Diagram, USA (2 of 3) for BMW 740i 1994 List of elements for Exterior Light Wiring Diagram, USA (2 of 3) for BMW 740i 1994: G100 (left front of engine compt) G101 (right front of engine compt) G202 (left side of dash) G303 (below right side of rear seat) G304 (below left side of rear seat) High level stop- light Instrument cluster Left brake light Left front park/turn assembly Left front side marker light Left front turn light Left license plate light Left park light Left rear light assembly Left rear park light Left rear side marker light Left rear turn light Left turn indicator Nca Right brake light Right front park/turn assembly Right front side marker light Right front turn light Right license plate light Right park light Right rear light assembly Right rear park light Right rear side marker light Right rear turn light Right turn indicator X17 X502
Exterior Light Wiring Diagram, USA (3 of 3) for BMW 740i 1994 List of elements for Exterior Light Wiring Diagram, USA (3 of 3) for BMW 740i 1994: (chime module) (control module) (not used- 1993-94) A/t Anti-theft system (1993-94) not used (1992) Automatic transmission range switch (base of gear selector) Back-up light switch (right side of transmission) Combination switch Crash control module (front power distribution box) Crash information Crash signal Front power distribution box (left rear side of engine compt.) Fuse f12 15a Fuse f3 7.5a Fuse f6 15a G202 (below left side of dash) G202 (left side of dash G202 (left side of dash) G304 (below left side of rear seat) General module (rear power distribution box) Hazard flasher relay (front power distribution box) Hazard switch Headlights system Hot at all times Hot in run or start Inertia switch (below left side of rear seat) Interior lights system Left Left back up light Left rear light assembly M/t (1993-94) Memory system Mirrors system (electro- chromic) Nca Off Power distribution Right Right back up light Right rear light assembly Turn signal switch Warning systems X253
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 7) for BMW 740i 1994 List of elements for Ground Distribution Wiring Diagram (1 of 7) for BMW 740i 1994: Abs (740i/l only) Asc+t abs Auxiliary relay box 1 Blower relay Brake fluid level switch Brake light switch Canada only Combination switch Crash control module Dimmer Engine coolant level switch (740i) Fog light relay Fog light switch Front power distribution box G100 (left front of engine compartment) G100 (left front of engine compartment) (740i/l) G202 left side of i/p) Hazard flasher relay Headlight/ fog light cleaning system module (sra) Ignition switch Instrument cluster Left fog light Left front park/ turn light assembly Left front side marker light Left front turn light Left high beam headlight Left low beam headlight Left park light Left washer jet heater Left xenon light Light switch Light switch (usa) Lock sensor control module Pressure sensor plunger (740i/l) Pressure switch Right horn Right park light relay Right park/ license light relay Right washer jet heater Servotronic control module Slip control module Starter relay Temperature switch Unloader relay kl15 Unloader relay kl61 Unloader relay klr W/ xenon lights W/o xenon lights Washer fluid level switch (740i) Water pump
Ground Distribution Wiring Diagram (2 of 7) for BMW 740i 1994 List of elements for Ground Distribution Wiring Diagram (2 of 7) for BMW 740i 1994: (750il) Asc switch Auxiliary fan motor Brake fluid level switch Brake pressure differential switch Brake pressure regulating switch Charging socket Chime module Dash light Engine coolant level switch Engine hood switch (dwa) G100 (left front of engine compartment) G101 (right front of engine compartment) G202 (below left side of i/p) G303 (w/o power rear seats) (below right side of rear seat) Hazard switch Left horn Left jet washer heater Left rear seat heater Left rear seat heater switch Left rear seatback heater Oil pressure switch On-board computer On-board computer temperature sensor Power steering fluid level switch Pressure sensor/ plunger Pressure switch Rear power distribution box Rear seat heating relay Right fog light Right front park/ turn light assembly Right front side marker light Right front turn light Right high beam headlight Right jet washer heater Right low beam headlight Right park light Right rear seat heater Right rear seat heater switch Right xenon light Temperature switch Transmission switch light W/ xenon lights W/o xenon lights Washer fluid level switch Wiper/ washer switch
Ground Distribution Wiring Diagram (3 of 7) for BMW 740i 1994 List of elements for Ground Distribution Wiring Diagram (3 of 7) for BMW 740i 1994: (740i/l) Abs hydraulic unit Cyl 1-4 heated oxygen sensor Cyl 5-8 heated oxygen sensor Data link connector From shields a (diagram 4 of 7) G100 (left front of engine compartment) G123 (right rear of engine compartment) G303 (w/ power rear seat) (below right side of rear seat) G303 (w/o power rear seat, w/ rear headrest) (below right side of rear seat) Left rear headrest switch Left rear seat belt contact Left rear seat heater Left rear seat heater switch Left rear seat heating/ position relay Left rear seat/ headrest switch Left rear seatback heater Mass air flow sensor Oil level switch Oil pressure switch Pump motor Rear headrest control module Rear headrest control unit Rear power distribution box Rear seat heating relay Right rear headrest switch Right rear seat belt contact Right rear seat heater Right rear seat heater switch Right rear seat heating/ position relay Right rear seat/ headrest switch Right rear seatback heater Temperature switch Transmission control module (egs)
Ground Distribution Wiring Diagram (4 of 7) for BMW 740i 1994 List of elements for Ground Distribution Wiring Diagram (4 of 7) for BMW 740i 1994: (740il) Anti- theft horn Anti- theft module Automatic air recirculation module Automatic heating/ a/c switch Automatic heating/ a/c control module Camshaft position sensor shield Crankshaft position/ rpm sensor shield Cyl 1-4 heated oxygen sensor shield Cyl 5-8 heated oxygen sensor shield Door lock heater Early production Final stage unit Front cigar lighter Front power distribution box G112 (lower left side of engine) G202 (below left side of i/p) G303 (below left side of rear seat) General module Ignition coils 1-4 shield Ignition coils 5-8 shield Inertia switch Late production Left front make-up mirror switch Left front seat belt switch Left front seat heater Left front seat heater switch Left front seat lumbar switch Left front seatback heater Left front side memory mirror Left license light Left rear door jamb switch Nca Oil level sensor Right front make-up mirror switch Right license light Seat/mirror/ steering column memory control module Steering column adjustment relay Steering column adjustment switch Sunroof position switch Sunroof switch To g123 (diagram 3 of 7) Trunk lid switch Wiper motor Wiper relay
Ground Distribution Wiring Diagram (5 of 7) for BMW 740i 1994 List of elements for Ground Distribution Wiring Diagram (5 of 7) for BMW 740i 1994: (740i, 740il) (750il) Cyl 1 ignition coil Cyl 1-6 engine control module shield Cyl 1-6 heated oxygen sensor Cyl 1-6 heated oxygen sensor shield Cyl 2 ignition coil Cyl 3 ignition coil Cyl 4 ignition coil Cyl 5 ignition coil Cyl 6 ignition coil Cyl 7 ignition coil Cyl 7-12 crankshaft position/rpm sensor shield Cyl 7-12 cylinder identification sensor shield Cyl 7-12 engine control modlue (dme) Cyl 7-12 engine control module (dme) Cyl 7-12 engine control module dme Cyl 7-12 engine control module shield Cyl 7-12 heated oxygen sensor Cyl 7-12 heated oxygen sensor shield Cyl 7-12 ignition coils shield Cyl 7-12 mass air flow sensor Cyl 8 ignition coil Data link connector Edc control switch Edc relay Electronic control module (adsii) Electronic shock absorber control module (edc) Engine control module (dme) G123 (right rear of engine compartment) G303 (below right side of rear seat) G304 (below left side of rear seat) Nca Program switch Program switch (750il) Resistor Soft close trunk lid control module Temperature switch Transmission control module (750il)
Ground Distribution Wiring Diagram (6 of 7) for BMW 740i 1994 List of elements for Ground Distribution Wiring Diagram (6 of 7) for BMW 740i 1994: 740i/l 750il Accessory connector Cd changer Early production Electrochromic mirror Front window defogger Fuel pump Fuel tank G303 (below right side of rear seat) G304 (below left side of rear seat) General module Hifi amplifier High level stop light Late production Left rear light assembly Left rear reading light unit Left rear side marker light Nca Phone interface box Phone transceiver Radio Rear cigar lighter Rear power disrtribution box Rear power distribution box Relay module Right front seat back heater Right front seat belt switch Right front seat control switch Right front seat heater Right front seat heater switch Right front seat lumbar switch Right front side memory mirror Right front window limit switch Right rear light assembly Right rear reading light assembly Right rear reading light unit Right rear side marker light Seat load assembly Seat/mirror/ steering column memory control module Steering column adjust switch Suppression filter To g303 (diagram 7 of 7)
Ground Distribution Wiring Diagram (7 of 7) for BMW 740i 1994 List of elements for Ground Distribution Wiring Diagram (7 of 7) for BMW 740i 1994: (750il) 740i/l 750il Battery Check control module Cruise control actuator Cruise control module Cyl 1-6 crankshaft position/rpm sensor shield Cyl 1-6 cylinder identification sensor shield Cyl 1-6 engine control module (dme) Cyl 1-6 ignintion coils shield Cyl 1-6 mass air flow sensor Data link connector shield Electronic control module shield Electronic throttle control module (eml) Engine control module shield Form rear power b distribution box (diagram 6 of 7) Front console window switch assembly Front power distribution box Fuel level sensor G123 (right rear of engine compartment) G303 (ahead of right rear seat) G303 (below right side of rear seat) Glove box light switch Lamp control module Left front door jamb switch Left rear ashtray light Left rear window limit switch Lrft front door handle switch Lrft front window limit switch Memory mirrors control switch Nca Park ventilation relay box Radio anti- theft switch Rear cigar lighter light Right front door jamb switch Right front door jamb switch Right rear ashtray light Right rear window limit switch Throttle position motor i shield Throttle position motor ii shield Transmission kick- down switch Wheel camber control module
HEADLIGHTS Headlight Wiring Diagram, with DRL (1 of 2) for BMW 740i 1994 List of elements for Headlight Wiring Diagram, with DRL (1 of 2) for BMW 740i 1994: (left side of dash) (not used) Combination switch Exterior lights system Flash Fog light relay signal Fog- light indicator Fog- light relay (left side of dash) Fog- light switch Front power distribution box (left rear of engine compartment) Front power distribution box (left rear of engine compt) Fuse f13 7.5a Fuse f14 7.5a Fuse f2 7.5a Fuse f3 7.5a Fuse f6 15a Fuse f7 15a G100 (left front of engine compartment) G100 (left front of engine compt) G101 (right front of engine compartment) G101 (right front of engine compt) G202 G202 (left side of dash) Head High High beam indicator High beam lights signal High beam switch Hot at all times Hot in run or start Instrument cluster Interior lights system Lamp control module (front power distribution box) Left fog light signal Left fog- light Left high beam light Left low beam signal Light switch Light switch) Low beam relay signal Normal Off Park Power distribution Red Right fog light signal Right fog- light Right high beam light Right low beam signal X16 X17 X502
Headlight Wiring Diagram, with DRL (2 of 2) for BMW 740i 1994 List of elements for Headlight Wiring Diagram, with DRL (2 of 2) for BMW 740i 1994: Anti-theft system (anti-theft control module) Crash control module (front power distribution box) Crash information Exterior lights system Fog lights on input Front power distribution box (left rear of engine compartment) Fuse f10 7.5a Fuse f11 7.5a G100 (left front of engine compt) G101 (right front of engine compt) G202 (left side of dash) G304 (below left side of rear seat) General module (rear power distribution box) Hazard flasher relay (front power distribution box) Hazard switch Inertia switch (below left side of rear seat) Inertia switch input Left low beam light Right low beam light X253 X255
Headlight Wiring Diagram, without DRL (1 of 2) for BMW 740i 1994 List of elements for Headlight Wiring Diagram, without DRL (1 of 2) for BMW 740i 1994: Combination high beam switch Flash Fog light indicator Fog light relay signal Fog light switch Front power distribution box (left rear of engine compartment) Front power distribution box (left rear of engine compt) Fuse f13 7.5a Fuse f14 7.5a Fuse f2 7.5a Fuse f3 7.5a Fuse f6 15a Fuse f7 15a G100 (left front of engine compartment) G100 (left front of engine compt) G101 (right front of engine compartment) G101 (right front of engine compt) G202 (left side of dash) Head High High beam indicator High beam lights signal Hot at all times Hot in run or start Instrument cluster Interior lights system Lamp control module (front power distribution box) Left fog light signal Left fog- light Left high beam light Left low beam signal Light switch Low beam relay signal Normal Off Park Power distribution Red Right fog light signal Right fog- light Right high beam light Right low beam signal Switch W/ xenon lights W/o xenon lights X16 X17 X502
Headlight Wiring Diagram, without DRL (2 of 2) for BMW 740i 1994 List of elements for Headlight Wiring Diagram, without DRL (2 of 2) for BMW 740i 1994: (left front of engine compt) (right front of engine compt) Anti-theft system (anti-theft control module) Crash control module (front power distribution box) Crash information Exterior lights system Foglights on input Front power distribution box (left rear of engine compartment) Fuse f10 15a Fuse f10 7.5a Fuse f11 15a Fuse f11 7.5a Fuse f61 5a Fuse f63 5a G100 G100 (left front of engine compt) G101 G101 (right front of engine compt) G101 (right side of engine compt) G202 (left side of dash) G304 (below left side of rear seat) General module (rear power distribution box) Hazard flasher relay (front power distribution box) Hazard switch Hot at all times Inertia switch (below left side of rear seat) Inertia switch input Left low beam light Left xenon light Right low beam light Right xenon light W/ xenon lights W/o xenon lights X253 X255
HORN Horn Wiring Diagram for BMW 740i 1994 List of elements for Horn Wiring Diagram for BMW 740i 1994: Acc Front power distribution box (left rear side of engine compt) Fuse f9 15a G110 (left front of engine compt) G119 (right front of engine compt) Horn relay (front power distribution box) Horn switch Hot at all times Ignition switch Left horn Off Right horn Run Start
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram (1 of 2) for BMW 740i 1994 List of elements for Instrument Cluster Wiring Diagram (1 of 2) for BMW 740i 1994: (750il) (not used) Abs Air bag Anti-lock brake system Automatic transmission indicator Brake Brake fluid level Brake pad sensor 2 Brake wear Charge Check engine Chime module Cluster programming Computer data lines system Dac-data line Data line Diagnosis Egs program indicator Eml Engine controls system Engine coolant temp Exterior lights system Fog lights Front power distribution box (rear left of engine compt) Fuel economy gauge Fuel gauge Fuel tank immersion tube sending unit Fuse 15a Fuse 7.5a Fuse f17 7.5a G202 (left side of dash) Ground Headlights system Hi beam Hot at all times Hot in accy, run or start Hot in run or start Instrument cluster Interior lights system Left turn Oil pressure Panel light Position pulse input Reserve Right turn Sia-reset Slip control Speedometer Speedometer output a-signal Starting/charging system Tachometer Td signal from dme Temperature gauge Ti signal from dme Transmissions system Warnings system X16 X16/1 X16/10 X16/12 X16/13 X16/15 X16/16 X16/17 X16/18 X16/2 X16/20 X16/21 X16/22 X16/23 X16/24 X16/25 X16/26 X16/3 X16/4 X16/5 X16/6 X16/7 X16/8 X17 X17/1 X17/13 X17/14 X17/15 X17/2 X17/3 X271 X271/10 X271/2 X271/4 X271/7 X271/8 X502 X502/1 X502/11 X502/14 X502/16 X502/17 X502/18 X502/2 X502/23 X502/25 X502/26 X502/3 X502/4 X502/5 X502/6 X502/8 X502/9
Instrument Cluster Wiring Diagram (2 of 2) for BMW 740i 1994 List of elements for Instrument Cluster Wiring Diagram (2 of 2) for BMW 740i 1994: (740) transmission control module (750) electronic throttle control module (750) engine control module (below right side of rear seat) (left front of dash) cruise control module (not used) 750il Automatic heating/ ac control module (ahead of ihka plenum) Automatic transmission range switch (base of gear selector) Brake fluid level switch (brake fluid reservoir) Button reset Check control module (front power distribution box) Control check Cruise control module (left front of dash) Data line E-box fan Electronic shock absorber control module (right side of trunk) Electronic throttle control module Engine control module (e-box) Engine control module nca Engine coolant temperature sensor (front of engine) Fuel gauge Fuel level sensor (right side of trunk) G100 (left front of engine compt) G103 (near right front shock tower) G303 General module (rear power distribution box) Left front brake sensor Line data Lock-sensor control module (left kick panel) Nca Oil pressure switch (left front) of engine) On-board computer (center of dash) Park brake signal Park brake switch (rear of park brake lever) Radio Reserve tank contact Right rear brake sensor Servo- tronic control module (behind left kick panel) Signal Signal speed Slip control module (e-box) Speed signal Speed vehicle Starter relay Transmissions system Vehicle Vehicle speed Vehicle speed sensor (under rear of car) X253 X263 X6010 X6020 X614
INTERIOR LIGHTS Interior Light Wiring Diagram (1 of 2) for BMW 740i 1994 List of elements for Interior Light Wiring Diagram (1 of 2) for BMW 740i 1994: (2) (5) Asc switch Canada Canada only Check control module (front power distribution box) Dash light Daytime running lights coding diode (left side of dash) Dimmer Edc control switch Engine compt. light Exterior lights system (turn/hazard lights) Fog light switch Front cigar lighter light Front power distribution box (left rear side of engine compartment) Fuse f4 7.5a Fuse f5 10a G123 (right rear of engine compartment) G202 (left side of i/p) G303 (below right rear seat) G304 (below left rear seat) General module (rear power distribution box) Hazard switch Head Hot at all times Instrument cluster Lamp control module (front power distribution box) Left front lumbar support switch Left front seat heater switch Left rear ashtray light Left rear seat heater switch (illuminated w/power rear seats only) License plate lights signal Light switch Off On-board computer (center of dash) Park Program switch Radio Rear cigar lighter light Right front lumbar support switch Right front seat heater switch Right park light/license plate light relay (left side of dash) Right rear ashtray light Right rear seat heater switch (illuminated w/power rear seats only) Sunroof switch Transmission switch light Under hood light Under hood light switch Usa X11 X12 X17 X19 X255 X501 X502 X8503
Interior Light Wiring Diagram (2 of 2) for BMW 740i 1994 List of elements for Interior Light Wiring Diagram (2 of 2) for BMW 740i 1994: (not used) Anti- theft system Auto Diode Dome light/ map reading assembly Driver's door handle switch Driver's door jamb switch Driver's makeup mirror light Driver's makeup mirror switch Front power distribution box (left rear of engine compartment) Fuse f15 7.5a Fuse f18 15a Fuse f30 7.5a Fuse f33 15a G303 (ahead of right rear seat) G303 (below left side of rear seat) G303 (below right rear seat) G303 (below right side of rear seat) G304 (below left rear seat) General module (below left rear seat) Glove box light Glove box light switch Hot at all times Hot in accy, run and start Inertia switch (below left rear seat) Left front footwell light Left rear door jamb switch Left rear footwell light Left rear reading light assembly Manual Nca Off Passenger's door jamb switch Passenger's makeup mirror light Passenger's makeup mirror switch Rear power distribution box (below left rear seat) Relay module (below left rear seat) Right front footwell light Right rear door jamb switch Right rear footwell light Right rear reading light assembly Trunk compartment light Trunk lid light Trunk lid switch (left side of trunk lid) X253 X255 X355 X356 X357 X364
MEMORY SYSTEMS Memory Mirrors Wiring Diagram for BMW 740i 1994 List of elements for Memory Mirrors Wiring Diagram for BMW 740i 1994: (not used) A/t Adjust mtr Automatic transmission range switch (front of gearshift selector) Back, back Back, front Back-up light switch (below center console) Computer data lines system Data link Driver's door jamb switch Driver's side memory mirror Front power distribution box (left rear corner of engine compt) Fuse f12 15a Fuse f16 30a Fuse f18 15a Fuse f42 30a G202 (below left side of dash) G202 (left side of dash) G303 (below right side of rear seat) Ground Headrest Headrest, dn Headrest, up Heater Height, dn Height, up Horiz motor Horiz/vert Hot at all times Hot in accy, run and start Hot in run and start Illum. + Illum. - Led + Led - Left pos Lf dr status M/t Mem switch Mem1 Mem2 Mem3 Memory seat/ mirrors switch Memory systems (driver's memory seat adjustment switch) Memory systems (driver's memory seat motors) Memory systems (memory seats potentiometers) Nca Passenger's side memory mirror Potentiomtr Power Program Pwr/gnd Rear height Rear power distribution box (below left side of rear seat) Reverse Right pos Seat cushion Seat height Seat, back Seat, front Seat/mirror memory control module (underside of left front seat) Seatback Tilt, dn Tilt, up Vert adj Vert motor X18319 X18320 X18321 X18322 X18323 X626
Memory Seat Wiring Diagram for BMW 740i 1994 List of elements for Memory Seat Wiring Diagram for BMW 740i 1994: (not used) A/t Automatic transmission range switch (front of gearshift selector) Back Back, back Back, front Back-up light switch (below center console) Computer data lines system Cushion Cushion tilt potentiometer (under driver's seat) Data link Down Driver's door jamb switch Driver's memory seat adjustment switch Driver's seat cushion tilt motor Driver's seat headrest motor Driver's seat height motor Driver's seat movement motor Driver's seat seatback motor Front Front power distribution box (left rear corner of engine compt) Fuse f12 15a Fuse f16 30a Fuse f18 15a Fuse f42 30a G202 (below left side of dash) G303 (below right side of rear seat) Ground Headrest Headrest potentiometer (top right corner of seatback) Headrest, dn Headrest, up Height Height potentiometer (under driver's seat) Height, dn Height, up Hot at all times Hot in accy, run and start Hot in run and start Illum. + Illum. - Led + Led - Lf dr status M/t Mem switch Mem1 Mem2 Mem3 Memory seat/ mirrors switch Movement potentiometer (under driver's seat) Position Power Program Pwr/gnd Rear height Rear power distribution box (below left side of rear seat) Reverse Seat cushion Seat height Seat, back Seat, front Seat/mirror memory control module (underside of left front seat) Seatback Seatback potentiometer (under driver's seat) Tilt, dn Tilt, up X18319 X18320 X18321 X18322 X18323 X626
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 7) for BMW 740i 1994 List of elements for Power Distribution Wiring Diagram (1 of 7) for BMW 740i 1994: (diagram 2 of 7) (diagram 3 of 7) (diagram 4 of 7) 4.0l 5.0l Abs hydraulic unit Acc Ags Automatic heating/a/c switch (ihka) B+ junction point (front of right front shock tower) Battery Blower relay Data link connector Egs Engine control module (dme) Engine control module (dme) (cyl 7-12) Engine control module relay Engine control module relay (cyl 1-6) Engine control module relay (cyl 7-12) Front power distribution box (left rear of engine compartment) Fuel pump relay Fuel pump relay (cyl 1-6) Fuel pump relay (cyl 7-12) Fuel pump relay cyl 1-8 (4.0l) fuel pump relay cyl 1-6 (5.0l) Fuel pump relay cyl 7-12 (5.0l) Fusible link a Generator Horn relay Ignition switch Instrument cluster Off Red Red y Red z Run Slip control module (abs/asc) Srs control module Start Starter Starter junction point Starter relay To auxiliary relay box 1 (fuse f34) To blower relay (diagram 5 of 7) To engine controls (diagram 2 of 7) To fuse f1 (diagram 4 of 7) To fuse f10 To fuse f11 To fuse f17 (diagram 4 of 7) To fuse f2 (diagram 2 of 7) To fuse f20 (diagram 2 of 7) To fuse f22 To fuse f25 To fuse f26 To fuse f27 To fuse f28 (diagram 4 of 7) To fuse f29 (diagram 3 of 7) To fuse f4 To fuse f6 To fuse f60 (diagram 2 of 7) To fuse f9 To fusible link b (diagram 6 of 7) To lamp control module (diagram 5 of 7) To unloader relay kl15 (diagram 5 of 7) To unloader relay klr (diagram 4 of 7) Transmission control module Transmission control module (egs) Unloader relay kl15 Unloader relay klr
Power Distribution Wiring Diagram (2 of 7) for BMW 740i 1994 List of elements for Power Distribution Wiring Diagram (2 of 7) for BMW 740i 1994: 740i/l 750il Automatic heating/a/c control module (ihka) Canada only Check control module Chime module Combination switch Crash control unit Electronic throttle control module (adsii) (740i/l) Engine control module (dme) Engine control module (dme) (cyl 1-6) Engine control module (dme) (cyl 7-12) From front power distribution box (diagram 1 of 7) From ignition switch (diagram 1 of 7) Front power distribution box (left rear of engine compartment) Fuse f10 15a Fuse f11 15a Fuse f2 7.5a Fuse f20 7.5a Fuse f3 7.5a Fuse f4 7.5a Fuse f5 10a Fuse f6 15a Fuse f60 30a Fuse f7 15a Hazard flasher relay Headlights/fog lights Ignition coil (cyl 1-6) Ignition coil (cyl 7-12) Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Ignition coil 5 Ignition coil 6 Ignition coil 7 Ignition coil 8 Instrument cluster Lamp control module Left front door lock motor Left front door lock switch Left park light relay (canada) Left xenon light Light switch On-board computer Park ventilation relay box Red Right park light relay (canada) Right xenon light Usa only
Power Distribution Wiring Diagram (3 of 7) for BMW 740i 1994 List of elements for Power Distribution Wiring Diagram (3 of 7) for BMW 740i 1994: A/c relay Auxiliary relay box 1 Auxiliary water pump relay Compressor control relay From front power distribution box (diagram 1 of 7) From ignition switch (diagram 1 of 7) Front cigar lighter Front power distribution box (left rear of engine compartment) Fuse f22 30a Fuse f25 30a Fuse f26 30a Fuse f27 30a Fuse f29 7.5a Fuse f34 (not used) Fuse f9 15a G202 (left side of i/p) G303 (below right side of rear seat) Headlight/ foglight cleaning system module (sra) High speed relay Horn relay Left rear seat heating/ position relay Lock sensor control module Normal speed relay Rear cigar lighter Rear power distribution box (below left side of rear seat) Rear seat heating relay Red Right rear seat heating/ position relay W/ power rear seats W/o power rear seats Wheel camber control module
Power Distribution Wiring Diagram (4 of 7) for BMW 740i 1994 List of elements for Power Distribution Wiring Diagram (4 of 7) for BMW 740i 1994: Anti-theft module Automatic transmission range switch Brake light switch Check control module Cruise control module Cruise control switch Data link connector Diode E-box fan From b+ junction point (diagram 1 of 7) From b+ junction z point (diagram 1 of 7) From front power o distribution box (diagram 1 of 7) From ignition switch (diagram 1 of 7) Front power distribution box (left rear of engine compartment) Fuel pump Fuel pump (5.0l) Fuel pump relay (cyl 1-8 4.0l) (cyl 1-6 5.0l) Fuel pump relay (cyl 7-12 5.0l only) Fuse f1 15a Fuse f15 7.5a Fuse f17 7.5a Fuse f18 15a Fuse f24 15a Fuse f28 15a General module Glove box light Instrument cluster Lamp control module Left front makeup mirror light Left rear reading light assembly On-board computer Oxygen sensor relay Oxygen sensor relay (5.0l) Phone interface box Phone transceiver Power sun blind switch Rear power distribution box (below left side of rear seat) Red Right front makeup mirror light Right rear reading light assembly Seat/mirror/ steering column memory control module Servotronic control module Unloader relay kl61 Unloader relay klr Wiper relay
Power Distribution Wiring Diagram (5 of 7) for BMW 740i 1994 List of elements for Power Distribution Wiring Diagram (5 of 7) for BMW 740i 1994: Automatic air recirculation control module Automatic heating/ a/c control module Automatic heating/ a/c switch Automatic transmission range switch Auxiliary relay box 1 Back-up light switch Blower motor Blower relay Edc relay Final stage unit From front power distribution box (diagram 1 of 7) Front power distribution box (left rear of engine compartment) Fuse f10 7.5a Fuse f11 7.5a Fuse f12 15a Fuse f13 7.5a Fuse f14 7.5a Fuse f16 30a Fuse f19 30a Fuse f21 7.5a Fuse f35 Lamp control module Left front seat heater switch Left front seat lumbar switch Left front side memory mirror Left high beam light Left low beam light Left xenon light Not used Red Right front seat heater switch Right front seat lumbar switch Right front side memory mirror Right high beam light Right low beam light Right xenon light Seat/mirror steering column memory control module Unloader relay kl15 W/ xenon lights W/o xenon lights
Power Distribution Wiring Diagram (6 of 7) for BMW 740i 1994 List of elements for Power Distribution Wiring Diagram (6 of 7) for BMW 740i 1994: (diagram 7 of 7) Anti-theft module Cd changer Charging socket Dome/map reading light assembly Electric power protection relay Electrochromic mirror From battery q (diagram 1 of 7) Fuse f33 7.5a Fuse f41 30a Fuse f44 30a Fuse f46 30a Fuse f47 30a Fuse f48 15a Fuse f49 10a Fuse f51 7.5a Fusible link b General module Hifi amplifier Left front footwell light Left rear footwell light Left rear reading light assembly Phone transceiver Radio Rear defogger relay Rear power distribution box (below left side of rear seat) Red Relay module Right front footwell light Right rear footwell light Right rear reading light assembly Steering column adjustment relay To fuse 30 To fuse 31 To fuse 32 To fuse 40 To fuse 42 To fuse 43 To fuse 45 Trunk compartment light Trunk lid light Washer pump Wiper relay
Power Distribution Wiring Diagram (7 of 7) for BMW 740i 1994 List of elements for Power Distribution Wiring Diagram (7 of 7) for BMW 740i 1994: Edc relay Electronic shock absorber control module From fusible link b (diagram 6 of 7) Fuse f30 15a Fuse f31 15a Fuse f32 7.5a Fuse f40 30a Fuse f42 30a Fuse f43 30a Fuse f45 30a Rear power distribution box (below left side of rear seat) Rear seat heating relay Red Relay module Right front door lock motor Right front door lock switch Right front seat control switch Right rear seat heating/ position relay Seat/mirror/ steering column memory control module Soft close trunk lid control module Soft close trunk lid motor assembly Sunblind control module Trunk lock motor W/ power rear seats W/o power rear seats
POWER DOOR LOCKS Power Door Lock Wiring Diagram for BMW 740i 1994 List of elements for Power Door Lock Wiring Diagram for BMW 740i 1994: (not used) 740i/l 750il Anti-theft system Arrest Arrest central Central Central arrest Cyl 1-6 engine control module (in e-box) Cyl 7-12 engine control module (in e-box) Drive away protection x501 Driver's door lock motor Driver's door lock switch Engine control module (in e-box) Front power distribution box (left rear corner of engine comp) Fuse f20 7.5a Fuse f30 7.5a Fuse f31 7.5a Fuse f44 30a G304 (below left side of rear seat) Gas filler lock motor General module (rear power distribution box) Hot at all times Hot in acc run or start Inertia switch (below left side of rear seat) Left rear door lock motor Lock Nca Off On-board computer (center of i/p) Passenger's door lock motor Passenger's door lock switch Power window system Rear power distribution box (below left side of rear seat) Red/ Relay module (rear power distribution box) Right rear door lock motor Trunk lock motor Unlock Unlock off Unlock off lock X253 X254 X255 X258 X259 X332 X6000 X6010 X6020 X684 X685 X742 X747
POWER MIRRORS Electrochromic Mirror Wiring Diagram for BMW 740i 1994 List of elements for Electrochromic Mirror Wiring Diagram for BMW 740i 1994: Automatic transmission range switch (base of gear selector) Electrochromic mirror Front power distribution box (left rear of engine compartment) Fuse f12 15a Fuse f51 7.5a G303 (below right rear seat) Hot in accy, run or start Hot in run or start
Photochromic Mirror Wiring Diagram for BMW 740i 1994 List of elements for Photochromic Mirror Wiring Diagram for BMW 740i 1994: Automatic transmission range switch (base of gear selector) Electrochromic mirror Front power distribution box (left rear of engine compartment) Fuse f12 15a Fuse f51 7.5a G303 (below right rear seat) Hot in accy, run or start Hot in run or start
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagrams for BMW 740i 1994 List of elements for Power Top/Sunroof Wiring Diagrams for BMW 740i 1994: 1988-89 Anti- theft system Arrest central Central arrest Close Driver's door lock switch Front power distribution box (left rear of engine compt) Fuse f17 7.5a Fuse f20 7.5a Fuse f30 7.5a Fuse f31 7.5a Fuse f44 30a G304 (below left side of rear seat) General module (rear power distribution box) Hot at all times Hot in acc, run and start Hot in run and start Interior lights system Lift close Lifted open or closed Lifted or fully open Lock Nca Off Passenger's door lock switch Power windows system Rear power distribution box (below left side of rear seat) Relay module (rear power distribution box) Slide open Slide open/ close Slide or fully open Sunroof motor (center of windshield header) Sunroof position switch Sunroof switch Unlock X253 X254 X255 X258 X259 X332
POWER WINDOWS Power Window Wiring Diagram (1 of 2) for BMW 740i 1994 List of elements for Power Window Wiring Diagram (1 of 2) for BMW 740i 1994: (1990 only) (not used) (not used) x360 Close Driver's window limit switch Driver's window motor Front power distribution box (left rear corner of engine compt) Fuse f17 7.5a Fuse f30 7.5a Fuse f44 30a G303 (ahead of right rear seat) G303 (below right rear seat) General module (rear power distribution box) Hot at all times Hot in acc, run or start Hot in run or start Left rear window limit switch Left rear window motor Left rear window switch Nca Off Open Passenger's window limit switch Passenger's window motor Power tops system Rear power distribution box (below left side of rear seat) Right rear window limit switch Right rear window motor Right rear window switch X253 X254 X255 X332
Power Window Wiring Diagram (2 of 2) for BMW 740i 1994 List of elements for Power Window Wiring Diagram (2 of 2) for BMW 740i 1994: Child safety lock off Child safety lock on Close Close off Driver's window switch Front console window switch assembly G303 (below right rear seat) G304 (below left side of rear seat) Left rear window switch Off Open Passenger's window switch Relay module (rear power distribution box) Right rear window switch X258 X259 X316 X317
RADIO Radio Wiring Diagrams for BMW 740i 1994 List of elements for Radio Wiring Diagrams for BMW 740i 1994: Antenna amplifier am/fm Body computer system Cd changer Cellular telephone Coax cable Fuse 10a Fuse 6.3a Fuse f41 30a G304 (below left side of rear seat) Hifi amplifier Hot at all times Instrument cluster system Interior lights system Left front high range speaker Left front low range speaker Left front midrange speaker Left rear high range speaker Left rear low range speaker Nca Power input Radio Rear power distribution box (below left side of rear seat) Right front high range speaker Right front low range speaker Right front midrange speaker Right rear high range speaker Right rear low range speaker X1381 X18126 X18184 X18185 X18186 X18187 X18189 X18190 X18191 X18192 X18193 X18729 X537 X538 X605 X606 X700 X701 X746 X753 X760 X761 X762 X763 X8074 X8075
SHIFT INTERLOCKS Shift Interlock Wiring Diagram for BMW 740i 1994 List of elements for Shift Interlock Wiring Diagram for BMW 740i 1994: Automatic transmission range switch (front of gearshift lever) B+ junction point Brake light Brake light switch (support bracket) Front power distribution box (rear left side of engine compt.) Fuse f1 15a Fuse f17 7.5a G123 (right rear of engine compt.) Gear range signal l1 Gear range signal l2 Gear range signal l3 Gear range signal l4 Ground Hot at all times Hot in accy, run and start Hot in run and start Instrument cluster system Nca Red Shift lock solenoid ground Shift-lock (front of gearshift selector) Transmission control module (e-box) Transmission gear shift unit (in trans- mission)
STARTING/CHARGING Charging Wiring Diagram for BMW 740i 1994 List of elements for Charging Wiring Diagram for BMW 740i 1994: Battery Charge ind Data link connector (right rear of engine compt) Front power distribution box (left rear of engine compartment) Fuse f17 7.5a Fuse f28 15a G202 (below left side of i/p) Generator Hot in run or start Instrument cluster Power distribution Rear defogger relay Rear power distribution box Slip control module (abs/asc +t) (behind right front shock tower) Starter junction point Unloader relay kl61 (front power distribution box)
Starting Wiring Diagram for BMW 740i 1994 List of elements for Starting Wiring Diagram for BMW 740i 1994: Acc Automatic heating/ a/c control module Automatic transmission range switch (below center Battery Console) Cruise control module (rear right side of engine compartment) Data link connector (right rear of engine compartment) Engine controls system Front power distribution box Front power distribution box (left rear corner of engine compt) Fuse f17 7.5a G202 (below left side of i/p) G303 (ahead of right side of rear seat) General module (below left side of rear seat) Generator Hot at all times Hot in run or start Ignition switch Off On-board computer (center of i/p) Power distribution Red Run Start Starter Starter junction point Starter relay Transmission control module (egs) (behind right kickpanel)
SUPPLEMENTAL RESTRAINTS Supplemental Restraint Wiring Diagram for BMW 740i 1994 List of elements for Supplemental Restraint Wiring Diagram for BMW 740i 1994: (driver's seat (front harness, left rear of engine compt) (left side of dash) (not used) (passenger seat harness) (right g203 Acc Air bag Ausf Check control module (left rear of engine compt.) Contact ring Data link connector (near e-box) Driver's airbag gas generator Driver's seat belt switch Fuse f47 10a Harness) Hot at all times Ignition switch Instrument cluster Kick panel) Nca Off Passenger's airbag gas generator Passenger's seat belt switch Rear power distribution box Run Seat load assembly Start Txd X16 X19 X782 X783
TRANSMISSION Transmission Wiring Diagram (1 of 2) for BMW 740i 1994 List of elements for Transmission Wiring Diagram (1 of 2) for BMW 740i 1994: (below right side of rear seat, right of g1 battery) (not used) (right rear of engine compartment, on top left front of e-box) 1995 vftc c Asr-signal Automatic transmission range switch (below center console, at base of gear selector) B+ junction point (behind right front shock tower, in e-box) Back up light switch (right side of transmission) Brake light switch (on brake pedal support) Brake lt Check control module Closed in reverse Clr Exterior lights system (back up lights) Fault display Front power distribution box (left rear of engine compartment) Fuse f1 15a Fuse f12 15a Fuse f17 7.5a G105 G105 (right rear of engine compartment, on top left front of e-box) G202 (below left side of i/p, left of steering column) G303 Gnd Hot at all times Hot in run or start Instrument cluster Instrument cluster system (check control circuit) Interior lights system Kick down Max spd sens Nca Oil tmp gr unit Pnk Posit sw l1 Posit sw l2 Posit sw l3 Posit sw l4 Press reg 1 Press reg 2 Press reg 3 Press reg 4 Program m Program s Program switch Red Shield Shift lock sol Shift lock solenoid (below center of console, near gearshift selector) Sol val 1 Sol val 2 Sol val 3 Spd sns turbine Transmission control module (egs) (behind right front shock tower, in e-box) Turb spd sens X506 (near gearshift selector)
Transmission Wiring Diagram (2 of 2) for BMW 740i 1994 List of elements for Transmission Wiring Diagram (2 of 2) for BMW 740i 1994: (rxd) (txd) 87a Brake test C 1995 vftc Clr Computer data lines system Data link connector (right rear of engine compartment, near e-box) Data signal Diag Egs shield gnd Engine control module (dme) (behind right front shock tower, in e-box) Engine control module relay (right rear of engine compartment in e-box) Engine controls system Kick down switch (underneath accelerator pedal) Max. speed sensor Nca Oil temp. sensor Pls sply dr,mv Pnk Press reg 5 Press. reg. Program e Red Shield Sig (can-h) Sig (can-l) Slip control module (behind right front shock tower, in e-box) Sol. valve Speed sensor turbine Term 15 sply Transmission control module (egs) (behind right front shock tower, in e-box) Transmission gear shift unit (below center of car, in transmission)
TRUNK, TAILGATE, FUEL DOOR Trunk Pull-Down Wiring Diagram for BMW 740i 1994 List of elements for Trunk Pull-Down Wiring Diagram for BMW 740i 1994: Door locks system Fuse f31 7.5a Fuse f32 15a General module (rear power distribution box) Hot at all times Rear power distribution box (below left side of rear seat) Soft close trunk lid control module (right side of trunk) Soft close trunk lid motor assembly (right side of trunk) Trunk lock motor X255
Trunk & Fuel Door Release Wiring Diagram for BMW 740i 1994 List of elements for Trunk & Fuel Door Release Wiring Diagram for BMW 740i 1994: Door locks system Fuse f30 7.5a Fuse f31 7.5a G304 (below left side of rear seat) Gas filler lock motor General module (rear power distribution box) Hot at all times Inertia switch (below left side of rear seat) Power windows system Rear power distribution box (below left side of rear seat) Relay module (rear power distribution box) Trunk lock motor X253 X254 X255 X258 X259 X332
WARNING SYSTEMS Warning System Wiring Diagrams for BMW 740i 1994 List of elements for Warning System Wiring Diagrams for BMW 740i 1994: A/t Automatic transmission range switch (center console near gearshift lever) Back up light switch (right side of trans- mission) Chime module (below left side of dash Chime module x502 Exterior lights system Front power distribution box (rear left of engine compt) Fuse f12 15a Fuse f20 7.5a G202 (below left side of dash) Gong t1 Gong t2 Hot at all times Hot in run or start Instrument cluster M/t On-board computer (center of dash) X1426 X501 X518 X522
WIPER/WASHER Headlamp/Foglamp Washer Wiring Diagram, Canada for BMW 740i 1994 List of elements for Headlamp/Foglamp Washer Wiring Diagram, Canada for BMW 740i 1994: 87a 87b Daytime running lights coding diodes (in front of dash, near light switch) Exterior lights system Fog light relay (below left side of dash) Fog light switch Front power distribution box (left rear corner of engine compt) Fuse f17 7.5a Fuse f2 7.5a Fuse f22 30a Fuse f3 7.5a Fuse f4 7.5a Fuse f44 30a Fuse f5 10a G100 (left front of engine compt) G202 (below left side of i/p) G202 (left side of i/p) General module (rear power distribution box) Head Headlight/ foglight cleaning system (auxiliary relay box 1) Headlight/foglight washer pump (left front of engine compt) Hot at all times Hot in accy, run or start Hot in run and start Interior lights system Light switch Off Park Rear power distribution box (below left side of rear seat) Right park light/license plate light relay (near hood release lever) Wash switch Washer motor (washer fluid reservoir) Wiper/ washer switch X253 X255
Headlamp/Foglamp Washer Wiring Diagram, USA for BMW 740i 1994 List of elements for Headlamp/Foglamp Washer Wiring Diagram, USA for BMW 740i 1994: Fog light switch Front power distribution box (left rear corner of engine compt) Fuse f17 7.5a Fuse f22 30a Fuse f3 7.5a Fuse f44 30a Fuse f5 10a G100 (left front of engine compt) G202 (below left side of i/p) General module (rear power distribution box) Head Headlight/ foglight cleaning system module (auxiliary relay box 1) Headlight/ foglight washer pump (washer fluid reservoir) Headlights system Hot at all times Hot in accy, run or start Hot in run or start Interior lights system Light switch Off park Rear power distribution box (below left side of rear seat) Wash switch Washer pump (washer fluid reservoir) Wiper/ washer switch X253 X255
Jet Heater Wiring Diagram for BMW 740i 1994 List of elements for Jet Heater Wiring Diagram for BMW 740i 1994: 85b 87b Automatic heating/ a/c control module (ahead of ihka plenum) Auxiliary water pump drive Auxiliary water pump relay Defogger system Front defogger Front power distribution box (left rear corner of engine compt) G100 (left front of engine compartment) Hot at all times Hot in run or start Left washer jet heater (left side of hood, under cover) Nca Right washer jet heater (right side of hood, under cover)
Wiper/Washer Wiring Diagram for BMW 740i 1994 List of elements for Wiper/Washer Wiring Diagram for BMW 740i 1994: Data line Fast Front power distribution box (left rear corner of engine compt) Fuse f15 7.5a Fuse f44 30a Fusible link b 80a G202 (below left side of i/p) G303 (below left rear seat) G304 (below left side of rear seat) General module (rear power distribution box) Hot at all times Hot in accy, run and start Instrument cluster Int wiper Mirrors system Nca Off Park Pause Rear power distribution box (below left side of rear seat) Red Relay module (rear power distribution box) Run Single Slow Speed sig Stnd wiper Vehicle speed signal Wash Wash signl Washer pump (washer fluid reservoir) Wiper motor (behind left side of fresh air cowl) Wiper mtr Wiper relay (rear power distribution box) Wiper/washer switch Wipers run X253 X255 X258 X259 X502