All Wiring Diagrams for BMW 740i 1993 – Wiring diagrams for cars

AIR CONDITIONING

A/C Wiring Diagram (1 of 3) for BMW 740i 1993

List of elements for A/C Wiring Diagram (1 of 3) for BMW 740i 1993:

(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 1993

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List of elements for A/C Wiring Diagram (2 of 3) for BMW 740i 1993:

(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 1993

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List of elements for A/C Wiring Diagram (3 of 3) for BMW 740i 1993:

(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 1993

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List of elements for Auxiliary Cooling Fan Wiring Diagram for BMW 740i 1993:

(behind right front shock tower)
86b
Automatic heating/ a/c control module
Auxiliary fan motor
Auxiliary relay box (left side of engine compartment)
Compressor control relay
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 1993

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List of elements for Park Ventilation Wiring Diagram for BMW 740i 1993:

(below left
(below right side of rear seat)
(not
A/c circuit
Acc
Automatic heating and air conditioning switch
Automatic heating/ a/c control module (front of plenum)
Blower motor
Blower relay (in front power distribution box)
C 1995 vftc
Dash)
Final stage unit (in front of plenum)
Front power distri- bution box
Fuse 30a
Fuse 7.5a
G202
G202 (behind right side of dash)
G303
Hot at all times
Ignition switch
Off
On-board computer
On-board computer temperature sensor (right side of front bumper)
Park ventilation relay box (above glove box)
Power distribution (battery positive terminal)
Red
Run
Side of
Solid state
Start
Used)
X612
X682

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams, with Traction Control (1 of 2) for BMW 740i 1993

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List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (1 of 2) for BMW 740i 1993:

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 1993

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List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 2) for BMW 740i 1993:

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 1993

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List of elements for Anti-lock Brake Wiring Diagrams, without Traction Control for BMW 740i 1993:

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 1993

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List of elements for Anti-theft Wiring Diagram for BMW 740i 1993:

(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 1993

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List of elements for Body Computer Wiring Diagrams for BMW 740i 1993:

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 1993

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List of elements for Computer Data Lines for BMW 740i 1993:

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 1993

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List of elements for Auxiliary Cooling Fan Wiring Diagram for BMW 740i 1993:

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 1993

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List of elements for Electrical Box Fan Wiring Diagram for BMW 740i 1993:

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 1993

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List of elements for Cruise Control Wiring Diagram for BMW 740i 1993:

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 1993

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List of elements for Defogger Wiring Diagram for BMW 740i 1993:

(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 POWER STEERING

Electronic Power Steering Wiring Diagram for BMW 740i 1993

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List of elements for Electronic Power Steering Wiring Diagram for BMW 740i 1993:

Electrohydraulic converter solenoid valve (behind left front wheel, bottom of steering rack assembly)
Front power distribution box (left rear of engine compartment)
Fuse f28 15a
G202 (left side of dash)
Hot in run or start
Instrument cluster
Servotronic control module (top of left kick panel)
Speed output
X120
X502
X83
X84

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram for BMW 740i 1993

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List of elements for Electronic Suspension Wiring Diagram for BMW 740i 1993:

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 1993

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List of elements for 4.0L, Electronic Throttle Control Wiring Diagram for BMW 740i 1993:

(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 1993

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List of elements for 4.0L, Engine Performance Wiring Diagrams (1 of 3) for BMW 740i 1993:

"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 1993

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List of elements for 4.0L, Engine Performance Wiring Diagrams (2 of 3) for BMW 740i 1993:

(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 1993

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List of elements for 4.0L, Engine Performance Wiring Diagrams (3 of 3) for BMW 740i 1993:

(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 1993

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List of elements for Exterior Light Wiring Diagram, Canada (1 of 3) for BMW 740i 1993:

(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 1993

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List of elements for Exterior Light Wiring Diagram, Canada (2 of 3) for BMW 740i 1993:

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 1993

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List of elements for Exterior Light Wiring Diagram, Canada (3 of 3) for BMW 740i 1993:

(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 1993

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List of elements for Exterior Light Wiring Diagram, USA (1 of 3) for BMW 740i 1993:

(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 1993

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List of elements for Exterior Light Wiring Diagram, USA (2 of 3) for BMW 740i 1993:

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 1993

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List of elements for Exterior Light Wiring Diagram, USA (3 of 3) for BMW 740i 1993:

(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 1993

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List of elements for Ground Distribution Wiring Diagram (1 of 7) for BMW 740i 1993:

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 1993

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List of elements for Ground Distribution Wiring Diagram (2 of 7) for BMW 740i 1993:

(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 1993

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List of elements for Ground Distribution Wiring Diagram (3 of 7) for BMW 740i 1993:

(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 1993

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List of elements for Ground Distribution Wiring Diagram (4 of 7) for BMW 740i 1993:

(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 1993

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List of elements for Ground Distribution Wiring Diagram (5 of 7) for BMW 740i 1993:

(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 1993

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List of elements for Ground Distribution Wiring Diagram (6 of 7) for BMW 740i 1993:

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 1993

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List of elements for Ground Distribution Wiring Diagram (7 of 7) for BMW 740i 1993:

(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 1993

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List of elements for Headlight Wiring Diagram, with DRL (1 of 2) for BMW 740i 1993:

(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 1993

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List of elements for Headlight Wiring Diagram, with DRL (2 of 2) for BMW 740i 1993:

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 1993

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List of elements for Headlight Wiring Diagram, without DRL (1 of 2) for BMW 740i 1993:

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 1993

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List of elements for Headlight Wiring Diagram, without DRL (2 of 2) for BMW 740i 1993:

(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 1993

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List of elements for Horn Wiring Diagram for BMW 740i 1993:

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 1993

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List of elements for Instrument Cluster Wiring Diagram (1 of 2) for BMW 740i 1993:

(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 1993

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List of elements for Instrument Cluster Wiring Diagram (2 of 2) for BMW 740i 1993:

(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 1993

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List of elements for Interior Light Wiring Diagram (1 of 2) for BMW 740i 1993:

(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 1993

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List of elements for Interior Light Wiring Diagram (2 of 2) for BMW 740i 1993:

(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, Early Production for BMW 740i 1993

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List of elements for Memory Mirrors Wiring Diagram, Early Production for BMW 740i 1993:

(memory seats)
(steering column adjust switch)
Adjust sw
Anti-theft system
Automatic transmission range switch (front of gearshift selector)
Back back
Back fwd
Column adj
Computer data lines system
Cushion
Data
Down
Driver's
Driver's door jamb switch
Driver's side memory mirror
Front power distribution box (left rear corner of engine compt)
Funct light
Fuse f12 15a
Fuse f16 30a
Fuse f17 7.5a
Fuse f18 15a
Fuse f42 30a
Fuse f44 30a
G202 (below left side of dash)
G303 (ahead of right rear seat)
G303 (below right side of rear seat)
General module (in rear power distribution box)
Ground
Head dn
Head up
Headrest
Height dn
Height up
Horiz m
Hot at all times
Hot in acc, run or start
Hot in run or start
Illumination
Left
Left motor
Left pot
Lf door
Mem switch
Mem1
Mem2
Mem3
Memory mirrors control switch
Memory seat/ mirrors switch
Memory systems
Memory systems (driver's memory seat adjustment switch)
Mtr control
Nca
Passenger's
Passenger's side memory mirror
Power
Program
Pwr/gnd
Rear power distribution box (below left side of rear seat)
Reverse
Right
Right motor
Right pot
Seat
Seat back
Seat fwd
Seat height
Seat/mirror/steering column memory control module (under driver's seat)
Seatback
Steering col
Tilt dn
Tilt up
Vert m
X18098
X601
X602
X648
X649
X653
X654
X655
X656
X657

Memory Mirrors Wiring Diagram, Late Production for BMW 740i 1993

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List of elements for Memory Mirrors Wiring Diagram, Late Production for BMW 740i 1993:

(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 acc, run or start
Hot in run or 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 (under driver's seat)
Seatback
Tilt, dn
Tilt, up
Vert adj
Vert motor
X18319
X18320
X18321
X18322
X18323
X626

Memory Seat Wiring Diagram, Early Production for BMW 740i 1993

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List of elements for Memory Seat Wiring Diagram, Early Production for BMW 740i 1993:

Anti-theft system
Automatic transmission range switch (front of gearshift selector)
Back
Back back
Back fwd
Computer data lines system
Cushion
Cushion tilt
Data
Down
Driver's door jamb switch
Driver's headrest motor
Driver's memory seat adjustment switch
Driver's seat cushion tilt motor
Driver's seat height motor
Driver's seat move- ment motor
Driver's seatback recliner motor
Front
Front power distribution box (left rear corner of engine compt)
Funct light
Fuse f12 15a
Fuse f16 30a
Fuse f17 7.5a
Fuse f18 15a
Fuse f42 30a
Fuse f44 30a
G202 (below left side of dash)
G303 (below right side of rear seat)
General module (in rear power distribution box)
Ground
Head dn
Head up
Headrest
Headrest potentiometer
Height
Height dn
Height up
Hot at all times
Hot in acc, run or start
Hot in run or start
Illumination
Lf door
Mem switch
Mem1
Mem2
Mem3
Memory seat/ mirrors switch
Memory system (steering column adjust switch)
Position
Power
Program
Pwr/gnd
Rear power distribution box (beolw left side of rear seat)
Red
Reverse
Seat back
Seat cushion movement potentiometer
Seat cushion rear height potentiometer (under driver's seat)
Seat fwd
Seat height
Seat height potentiometer
Seat postn
Seat/mirror/steering column memory control module (under driver's seat)
Seatback
Seatback potentiometer
Tilt dn
Tilt up
X255
X602
X648
X649
X653
X654
X655
X656
X657

Memory Seat Wiring Diagram, Late Production for BMW 740i 1993

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List of elements for Memory Seat Wiring Diagram, Late Production for BMW 740i 1993:

(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
Data link
Down
Driver's door jamb switch
Driver's headrest motor
Driver's memory seat adjustment switch
Driver's seat cushion tilt motor
Driver's seat height motor
Driver's seat movement motor
Driver's seat- back recliner 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, 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
Position
Power
Program
Pwr/gnd
Rear height
Rear power distribution box (below left side of rear seat)
Reverse
Seat cushion
Seat cushion movement potentiometer (under driver's seat)
Seat cushion rear height potentiometer (under driver's seat)
Seat height
Seat height potentiometer (under driver's seat)
Seat, back
Seat, front
Seat/mirror memory control module (under driver's seat)
Seatback
Seatback potentiometer (under driver's seat)
Tilt, dn
Tilt, up
X18319
X18320
X18321
X18322
X18323
X626

Power Steering Column Wiring Diagram for BMW 740i 1993

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List of elements for Power Steering Column Wiring Diagram for BMW 740i 1993:

Back
Column adj
Computer data lines system
Data
Front
Front power distribution box (left rear corner of engine compt)
Functn light
Fuse f16 30a
Fuse f18 15a
Fuse f42 30a
G202 (left side of i/p)
Ground
Hot at all times
Hot in acc, run or start
Hot in run or start
Illumination
Mem switch
Mem1
Mem2
Mem3
Memory seat/ mirrors switch
Mtr control
Nca
Power
Program
Rear power distribution box (below left side of rear seat)
Seat/mirror/ steering column memory control module (under driver's seat)
Steering col
Steering column adjust potentiometer (left side of steering column support)
Steering column adjust switch
Steering column length adjust motor (left side of steering column support)
X18098
X602
X648
X649

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 7) for BMW 740i 1993

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List of elements for Power Distribution Wiring Diagram (1 of 7) for BMW 740i 1993:

(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 1993

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List of elements for Power Distribution Wiring Diagram (2 of 7) for BMW 740i 1993:

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 1993

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List of elements for Power Distribution Wiring Diagram (3 of 7) for BMW 740i 1993:

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 1993

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List of elements for Power Distribution Wiring Diagram (4 of 7) for BMW 740i 1993:

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 1993

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List of elements for Power Distribution Wiring Diagram (5 of 7) for BMW 740i 1993:

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 1993

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List of elements for Power Distribution Wiring Diagram (6 of 7) for BMW 740i 1993:

(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 1993

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List of elements for Power Distribution Wiring Diagram (7 of 7) for BMW 740i 1993:

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 1993

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List of elements for Power Door Lock Wiring Diagram for BMW 740i 1993:

(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 1993

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List of elements for Electrochromic Mirror Wiring Diagram for BMW 740i 1993:

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 1993

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List of elements for Photochromic Mirror Wiring Diagram for BMW 740i 1993:

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 SEATS

Front Seat Heater Wiring Diagram for BMW 740i 1993

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List of elements for Front Seat Heater Wiring Diagram for BMW 740i 1993:

Driver's side seat heater switch
Driver's side seat heater
Driver's side seatback heater
Front power distribution box (left rear of engine compt)
Fuse f16 30a
G202 (below left side of dash)
G303 (below right side of rear seat)
Hot in run or start
Interior lights system
Max
Memory systems (memory control module)
Min
Passenger's side seat heater switch
Passenger's side seat heater
Passenger's side seatback heater
Red
Seats system (driver's lumbar switch)
Seats system (passenger's lumbar switch)

Passenger Power Seat Wiring Diagram for BMW 740i 1993

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List of elements for Passenger Power Seat Wiring Diagram for BMW 740i 1993:

Back
Cushion tilt
Front
Fuse f43 30a
G303 (below right side of rear seat)
Headrest
Height
Hot at all times
Nca
Passenger's side seat control switch
Passenger's side seat cushion tilt motor
Passenger's side seat headrest motor
Passenger's side seat height motor
Passenger's side seat movement motor
Passenger's side seatback recliner motor
Position
Rear power distribution box (below left side of rear seat)
Seatback

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagrams for BMW 740i 1993

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List of elements for Power Top/Sunroof Wiring Diagrams for BMW 740i 1993:

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 1993

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List of elements for Power Window Wiring Diagram (1 of 2) for BMW 740i 1993:

(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 1993

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List of elements for Power Window Wiring Diagram (2 of 2) for BMW 740i 1993:

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 1993

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List of elements for Radio Wiring Diagrams for BMW 740i 1993:

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 1993

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List of elements for Shift Interlock Wiring Diagram for BMW 740i 1993:

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 1993

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List of elements for Charging Wiring Diagram for BMW 740i 1993:

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 1993

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List of elements for Starting Wiring Diagram for BMW 740i 1993:

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)

TRANSMISSION

Transmission Wiring Diagram (1 of 2) for BMW 740i 1993

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List of elements for Transmission Wiring Diagram (1 of 2) for BMW 740i 1993:

(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)