AIR CONDITIONING — Lexus LX 570 2008 — SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 4) for Lexus LX 570 2008

List of elements for Automatic A/C Wiring Diagram (1 of 4) for Lexus LX 570 2008:

85

• (behind right side of dash) e3
• (center front of engine compt)
• +b1
• +b2
• A/c amplifier assembly (under center of dash)
• A/c fuse 7.5a
• A/c ig fuse 10a
• A/c pressure sensor (left front of engine compt)
• A3 (right rear of engine compt)
• A4 (right rear of engine compt)
• Ac1
• Act
• Alt
• Ambient temperature sensor
• Blw
• Blwh
• C16
• Canh
• Canl
• Cfn+
• Computer data lines system
• Cool
• Cooler compressor assembly (left front of engine)
• D58
• D59
• Defogger system
• Dgs
• Dgs1
• E3 (behind right side of dash)
• E35
• E36
• Ecu-ig 2 fuse 10a
• Engine room j/b (left side of engine compt)
• Engine room r/b (left side of engine compt)
• Exhaust gas sensor (front center of engine compt, forward of radiator)
• Fdef
• Front blower w/ fan motor sub- gnd assembly (under right side of dash)
• Front room temperature sensor (behind left center of dash)
• Gnd
• Hot at all times
• Hot w/ ig1 2 relay energized
• Hot w/ ig1 3 relay energized
• Htr fuse 50a
• Ig+
• Junction connector e60 (behind right side of dash)
• Left cooler thermistor (behind left quarterpanel)
• Left cowl side j/b (behind left end of dash)
• Lin2
• Lock
• Lock sensor
• Magnetic clutch
• Mg clt relay
• Mgc
• Pnk
• Pre
• Ptc1
• Ptc2
• Ptc3
• Rbbu
• Rbug
• Rbus
• Rdef
• Red
• Right cooler thermistor (behind right quarterpanel)
• Rlin
• Rmgv
• Rr auto a/c fuse 50a
• S5-1
• Seats system
• Sg-1
• Sg-2
• Sg-3
• Sg-4
• Sg-5
• Sg-6
• Sg-9
• Sgnd
• Starting/charging system
• Tam
• Tec
• Tr3
• Tr4
• Tr7
• Tsd
• Tsp

Automatic A/C Wiring Diagram (2 of 4) for Lexus LX 570 2008

List of elements for Automatic A/C Wiring Diagram (2 of 4) for Lexus LX 570 2008:

30

• (w/ ptc heater) quick heater assembly
• A3 (right rear of engine compt)
• Automatic light control sensor (under top center of dash)
• Cltb
• Clte
• Clts
• E3 (behind right side of dash)
• E33
• E34
• Engine room r/b (left side of engine compt)
• Hot at all times
• Joint connector a34 (right rear of engine compt)
• Junction connector e58 (behind left side of dash)
• K2 (at left "d" pillar)
• Left rear cooler thermistor 1 (behind left quarterpanel)
• Main body ecu (behind left end of dash)
• Pnk
• Ptc htr 1 relay (if equipped)
• Ptc htr 2 relay (if equipped)
• Ptc htr 3 relay (if equipped)
• Ptc-1 fuse 50a
• Ptc-2 fuse 50a
• Ptc-3 fuse 50a
• Rear blower motor control
• Rear blower w/ fan motor sub- assembly (behind left rear quarterpanel)
• Rear cooling unit expansion valve (behind left rear quarterpanel)
• Red
• Right rear cooler thermistor 1 (behind right quarterpanel)
• Tsl
• Tsr

Automatic A/C Wiring Diagram (3 of 4) for Lexus LX 570 2008

List of elements for Automatic A/C Wiring Diagram (3 of 4) for Lexus LX 570 2008:

34

• A/c control assembly 2
• A2 (left side of engine compt)
• Air conditioning amplifier
• B13
• Cds fan fuse 25a
• Cds fan relay
• Com
• Condenser blower motor assembly (center front of engine compt)
• Cooler blower fan
• Cooler control switch
• Cooler magnet valve
• Cooler thermistor
• Cooling box assembly
• D14
• Diode
• E1 (behind left side of dash)
• E2 (behind center of dash)
• Ecu-b1 fuse 5a
• Engine room r/b (left side of engine compt)
• Hot at all times
• Ill+
• Ill-
• Interior lights system
• Junction connector e58 (behind left end of dash)
• Junction connector e59 (behind left end of dash)
• Junction connector e62 (behind left side of dash)
• Junction connector e66 (behind center of dash)
• Left cowl side j/b (behind left end of dash)
• Noise filter
• Pnk
• Red
• Rlin
• Rly
• Seats system

Automatic A/C Wiring Diagram (4 of 4) for Lexus LX 570 2008

List of elements for Automatic A/C Wiring Diagram (4 of 4) for Lexus LX 570 2008:

48

• (air inlet)
• (left front air mix) damper servo motor
• (rear mode control) damper servo motor
• A/c amplifier assembly (under center of dash)
• A/c evaporator temperature sensor
• A38
• Ac1
• Act
• B bus
• Bus
• Bus g
• C53
• Canh
• Canl
• Computer data lines system
• Connector housing color (brown)
• Connector housing color (gray)
• Connector housing color (natural)
• Connector housing color (red)
• Crankshaft position sensor (left front of engine)
• Damper servo motor
• Damper servo motor (cool air)
• Damper servo motor (left air mix)
• Damper servo motor (left mode control)
• Damper servo motor (left rear air mix)
• Damper servo motor (mode control)
• Damper servo motor (right air mix)
• Damper servo motor (right front air mix)
• Damper servo motor (right mode control)
• Damper servo motor (right rear air mix)
• Ecm (engine control module) (right rear of engine compt)
• Efi engine coolant temperature sensor (left front of engine)
• Engine controls system
• Etha
• Front a/c blower assembly (under center of dash)
• Housing color (black) connector
• Housing color (brown) connector
• Ne+
• Ne-
• Pnk
• Rear a/c blower assembly (behind left quarterpanel)
• Red
• Sga
• Tea
• Thermistor
• Thw
• Vcv2
• Z45