AIR CONDITIONING – BMW 740i 1993 – SYSTEM WIRING DIAGRAMS

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

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

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

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

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