All Wiring Diagrams for BMW 735i 1991

COOLING FAN

Auxiliary Cooling Fan Wiring Diagram for BMW 735i 1991

List of elements for Auxiliary Cooling Fan Wiring Diagram for BMW 735i 1991:

• Air conditioning system
• Automatic heating & a/c control unit
• Auxiliary fan motor (center front of engine compt)
• Auxiliary relay box 1 (left side of engine compt)
• Front power distribution box (left rear 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 (front right side of engine compt)
• Temperature switch (top right of radiator)

Electrical Box Fan Wiring Diagram for BMW 735i 1991

List of elements for Electrical Box Fan Wiring Diagram for BMW 735i 1991:

• 735i/l
• 750il
• B+ junction point (front of right front shock tower)
• Diagnostic connector (rear of engine compt)
• E-box fan (right rear of engine compt)
• Engine controls system
• Front power distribution box (left rear of engine compt)
• Fuel pump relay i (front of right front shock tower)
• Fuse f17 7.5a
• Fuse f28 15a
• G110 (left front of engine compt)
• G117 (right rear of engine compt)
• Hot at all times
• Hot in start or run
• Instrument cluster
• Nca
• Oil pressure switch (left side of engine)
• Oil pressure switch (top right rear of engine)
• Oil warning ind
• Red
• Temperature switch (behind right front shock tower)

DEFOGGERS

Defogger Wiring Diagram for BMW 735i 1991

List of elements for Defogger Wiring Diagram for BMW 735i 1991:

• (1990 only)
• (not used)
• Air conditioning system
• Antenna amplifier (left "c" pillar)
• Automatic heating & air conditioning control unit (ahead of ihka plenum)
• Automatic heating & air conditioning switch
• Defogger coupler (upper right "c" pillar)
• Front power distribution box (left rear of engine compartment)
• 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
• Unloader relay (front power distribution box)
• X610
• X613
• X614

HORN

Horn Wiring Diagram for BMW 735i 1991

List of elements for Horn Wiring Diagram for BMW 735i 1991:

• Acc
• Front power distribution box (left rear side of engine compt)
• Fuse f9 15a
• G119 (right front of engine compt)
• G202 (behind left side of i/p)
• Horn relay (front power distribution box)
• Horn switch
• Hot at all times
• Ignition switch
• Left horn
• Off
• Phone alert relay (front power distribution box)
• Phone transceiver
• Power distribution
• Red
• Right horn
• Run
• Start
• Unloader relay (front power distribution box)

MEMORY SYSTEMS

Memory Mirrors Wiring Diagram for BMW 735i 1991

List of elements for Memory Mirrors Wiring Diagram for BMW 735i 1991:

• (memory seats)
• (steering column adjustment switch)
• Adjust sw
• Anti-theft system
• 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
• Exterior lights system
• Front power distribution box (left rear corner of engine compt)
• Funct light
• Fuse f12 15a
• Fuse f16 30a
• Fuse f18 15a
• Fuse f30 7.5a
• Fuse f42 30a
• Fuse f44 30a
• G202 (left side of i/p)
• G303 (ahead of right rear seat)
• G303 (below right side of rear seat)
• G304 (below left 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
• Interior lights system
• 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)
• Relay module (rear power distribution box)
• 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
• X253
• X255
• X601
• X602
• X648
• X649
• X653
• X654
• X655
• X656
• X657

Memory Seat Wiring Diagram for BMW 735i 1991

List of elements for Memory Seat Wiring Diagram for BMW 735i 1991:

• Automatic transmission range switch
• Back
• Back back
• Back fwd
• Computer data lines system
• Cushion
• Cushion tilt
• Data
• Down
• 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 f18 15a
• Fuse f30 7.5a
• Fuse f42 30a
• G202 (below left side of dash)
• G303 (below right side of rear seat)
• G304 (below left 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
• Interior lights system
• Lf door
• Mem switch
• Mem1
• Mem2
• Mem3
• Memory seat/ mirrors switch
• Memory system (steering column adjustment switch)
• Position
• Power
• Program
• Pwr/gnd
• Rear power distribution box (below left side of rear seat)
• Red
• Relay module (in rear power distribution box)
• 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
• X253
• X602
• X648
• X649
• X653
• X654
• X655
• X656
• X657

Power Steering Column Wiring Diagram for BMW 735i 1991

List of elements for Power Steering Column Wiring Diagram for BMW 735i 1991:

• 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)
• G303 (below right side of rear seat)
• 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
• 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- ment potentiometer (left of steering column support)
• Steering column adjustment motor (left of steering column support)
• Steering column adjustment switch
• X18098
• X602
• X648
• X649

POWER DOOR LOCKS

Power Door Lock Wiring Diagram (1 of 2) for BMW 735i 1991

List of elements for Power Door Lock Wiring Diagram (1 of 2) for BMW 735i 1991:

• (750il only)
• (not used)
• Anti-theft module (dwa) (below left side of i/p)
• Arrest
• Arrest central
• Central
• Central arrest
• Driver's door lock motor
• Driver's door lock switch
• Front power distribution box (left rear corner of engine comp)
• Fuse f20 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)
• Left rear door lock motor
• Lock
• Nca
• Off
• Passenger's door lock motor
• Passenger's door lock switch
• Power window system
• Red/
• Relay module (rear power distribution box)
• Right rear door lock motor
• Trunk lock motor
• Unlock
• Unlock off
• Unlock off lock
• X252
• X253
• X254
• X255
• X258
• X259
• X332
• X684
• X685
• X742
• X747

Power Door Lock Wiring Diagram (2 of 2) for BMW 735i 1991

List of elements for Power Door Lock Wiring Diagram (2 of 2) for BMW 735i 1991:

• (750il only)
• Computer data lines system
• Data transmit
• Driver's door handle switch (750il only)
• Front power distribution box (left rear corner of engine comp)
• Fuse f17 7.5a
• Fuse f30 7.5a
• Fuse f31 7.5a
• Fuse f44 30a
• Fuse f51 7.5a
• G303 (ahead of right side of rear seat)
• Ground
• Hot at all times
• Hot in acc run or start
• Hot in acc, run or start
• Hot in run or start
• Infrared locking control unit (750il only) (rear power distribution box)
• Infrared receiver (750il only) (top of i/p)
• Ir/dwa led (750il only) (center of i/p)
• Rear power distribution box (below left side of rear seat)
• X262

POWER MIRRORS

Electrochromic Mirror Wiring Diagram for BMW 735i 1991

List of elements for Electrochromic Mirror Wiring Diagram for BMW 735i 1991:

• Automatic transmission range switch (base of gear selector)
• Back up switch (base of gear selector)
• Egs
• Electrochromic mirror
• Exterior lights system
• Front power distribution box (left rear of engine compartment)
• Fuse f12 15a
• Fuse f17 7.5a
• G303 (below right rear seat)
• Hot in run or start
• W/m/t

POWER SEATS

Front Seat Heater Wiring Diagram for BMW 735i 1991

List of elements for Front Seat Heater Wiring Diagram for BMW 735i 1991:

• 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
• Memory systems (memory control module)
• Passenger's side seat heater switch
• Passenger's side seat heater
• Passenger's side seatback heater
• Red
• Seats system (driver's side lumbar switch)
• Seats system (passenger's side lumbar switch)

Passenger Power Seat Wiring Diagram for BMW 735i 1991

List of elements for Passenger Power Seat Wiring Diagram for BMW 735i 1991:

• 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 WINDOWS

Power Window Wiring Diagram (1 of 2) for BMW 735i 1991

List of elements for Power Window Wiring Diagram (1 of 2) for BMW 735i 1991:

• (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 735i 1991

List of elements for Power Window Wiring Diagram (2 of 2) for BMW 735i 1991:

• 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 735i 1991

List of elements for Radio Wiring Diagrams for BMW 735i 1991:

• Antenna amplifier
• Body computer system
• Cd changer
• Cellular telephone
• Coax cable
• Front power distribution box (left rear of engine compt)
• Fuse 10a
• Fuse 6.3a
• Fuse f18 15a
• Fuse f41 30a
• Fuse fd 3a
• G304 (below left side of rear seat)
• Hifi amplifier
• Hot at all times
• Hot in acc, run or start
• 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
• X18126
• X605
• X606
• X8074
• X8075

STARTING/CHARGING

Charging Wiring Diagram for BMW 735i 1991

List of elements for Charging Wiring Diagram for BMW 735i 1991:

• Abs
• Abs electronic control unit (behind right front shock tower)
• Abs/asc control unit (behind right front shock tower)
• Alternator
• Anti-theft module (dwa) (below left side of rear seat)
• Asc
• Battery
• Charge ind
• Diagnostic 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)
• G303 (ahead of right side of rear seat)
• Hot in run or start
• Instrument cluster
• Power distribution
• Rear defogger relay
• Rear power distribution box
• Starter
• Unloader relay kl61 (front power distribution box)
• X910 junction post
• X960 junction post

Starting Wiring Diagram for BMW 735i 1991

List of elements for Starting Wiring Diagram for BMW 735i 1991:

• Acc
• Alternator
• Automatic heating & a/c control unit (ahead of ihka plenum)
• Automatic transmission range switch (below center
• Battery
• Console)
• Cruise control module (tempomat) (w/o eml) (behind right front shock tower)
• Diagnostic connector (left rear of engine compt)
• Diagnostic module (srs) (below left side of i/p)
• Eml electronic control unit (w/ eml) (behind right front shock tower)
• 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 (rear power distribution box)
• Hot at all times
• Hot in run or start
• Ignition switch
• Motronic control unit (dme) (behind right front shock tower)
• Off
• On-board computer (center of i/p)
• Power distribution
• Red
• Run
• Start
• Starter
• Starter relay (egs) jumper plug (m/t)
• X910 junction post
• X960 junction post

TRUNK, TAILGATE, FUEL DOOR

Trunk & Fuel Door Release Wiring Diagram for BMW 735i 1991

List of elements for Trunk & Fuel Door Release Wiring Diagram for BMW 735i 1991:

• (1990 only)
• (not used)
• 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
• X360

WIPER/WASHER

Headlamp/Foglamp Washer Wiring Diagram for BMW 735i 1991

List of elements for Headlamp/Foglamp Washer Wiring Diagram for BMW 735i 1991:

• (canada only)
• (usa only)
• 6 or 4
• 8 or 11
• Canada
• Exterior lights system
• Foglight relay (left side of i/p) (canada)
• Foglight switch
• From fuse f23 a (diagram 1 of 1)
• Front power distribution box (left rear corner of engine compt)
• Fuse f2 7.5a (canada)
• Fuse f23 30a
• Fuse f3 7.5a
• Fuse f5 10a (usa)
• G110 (left front of engine compt)
• G202 (below left side of i/p)
• General module (rear power distribution box)
• Head
• Headlight/ foglight washer pump (washer fluid resevoir)
• Headlight/ front foglight washer module (auxiliary relay box 1)
• Hot at all times
• Hot in run or start
• Intensive wash
• Interior lights system
• Light switch
• Off
• Park
• To headlight/front foglight washer module (diagram 1 of 1)
• Usa
• Wash
• Washer pump relay (front power distribution box)
• Wiper/ washer system
• Wiper/washer switch
• Wiper/washer system
• X253
• X255

Jet Heater Wiring Diagram, Early Production for BMW 735i 1991

List of elements for Jet Heater Wiring Diagram, Early Production for BMW 735i 1991:

• 87a
• Front power distribution box (left rear corner of engine compt)
• Fuse f28 15a
• G110 (left front of engine compartment)
• G202 (below left side of i/p)
• 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)
• Starting/ charging system
• Unloader relay

Jet Heater Wiring Diagram, Late Production for BMW 735i 1991

List of elements for Jet Heater Wiring Diagram, Late Production for BMW 735i 1991:

• (not in usa)
• 85b
• 87b
• Automatic heating & air conditioning control module (ahead of ihka plenum)
• Front defogger water pump relay
• Front power distribution box (left rear corner of engine compt)
• Fuse f29 7.5a
• Fuse f9 15a
• G110 (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)
• X162

Wiper/Washer Wiring Diagram for BMW 735i 1991

List of elements for Wiper/Washer Wiring Diagram for BMW 735i 1991:

• (not used)
• 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)
• G304 (below left side of rear seat)
• General module (rear power distribution box)
• Hot at all times
• Hot in acc, run & start
• Instrument cluster
• Intensive wash
• Intensive wash pump (washer fluid reservoir)
• Nca
• Off
• Park
• Pause
• Power distribution
• Rear power distribution box (below left side of rear seat)
• Red
• Relay module (rear power distribution box)
• Run
• Single
• Slow
• Vehicle speed signal
• Wash
• Washer pump (washer fluid reservoir)
• Washer pump relay (front power distribution box)
• Wiper motor (behind left side of fresh air cowl)
• Wiper relay (rear power distribution box)
• Wiper/washer switch
• X253
• X254
• X255
• X258
• X259
• X295
• X502