AIR CONDITIONING – Lexus GX 470 2009 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Front A/C Wiring Diagram, with Navigation (1 of 4) for Lexus GX 470 2009

List of elements for Front A/C Wiring Diagram, with Navigation (1 of 4) for Lexus GX 470 2009:

• (right side of dash) junction connector 16
• A/c ecu (behind right side of dash)
• A13
• A14
• A15
• A18
• Acan
• Acld
• Aif
• Air
• Amcd
• Amcp
• Amhd
• Amhp
• Blc
• Def
• Defogger system
• Driver side j/b (behind lower left end of dash)
• Eb (on left front inner fender)
• Ecu-b fuse 10a
• Engine room r/b (on left side of engine compt)
• Face
• Frhr
• Front blower motor (behind lower right side of dash, on hvac assembly)
• Frte
• Gnd
• Heater 2 fuse 7.5a
• Heater control switch
• Heater fuse 50a
• Heater relay
• Hot at all times
• Ill+
• Ill-
• Interior lights system
• J/b 3 (behind right side of dash)
• Junction connector 14 (left side of dash)
• Junction connector 2 & 3 (left side of engine compt)
• L-auto
• L-fdef
• L-frs
• L-rdef
• L-rec
• Lights system interior
• Lock
• Mgc
• Mpx+
• Mpx-
• Pnk
• Psw
• Red
• Rrdef
• S-auto
• S-f/r
• S-fdef
• S-off
• S-r/f
• S-rdef
• S-tempd+
• S-tempd-
• S-tempp+
• S-tempp-
• Spd
• Tacc
• Tamin
• The
• Tpd
• Tpi
• Tpm
• Tpp
• Tsd
• Tsp
• Twi
• Ver 1

Front A/C Wiring Diagram, with Navigation (2 of 4) for Lexus GX 470 2009

List of elements for Front A/C Wiring Diagram, with Navigation (2 of 4) for Lexus GX 470 2009:

• (behind left end of dash) body ecu
• (behind right side of dash) j/b 3
• (on right front
• (on upper left side of dash) a/c solar sensor
• (right side of dash) junction connector 19
• A/c ambient temperature sensor (behind center of front grille)
• A13
• Acan
• Accessory meter
• Blower motor linear controller (behind lower right center of dash)
• Cltb
• Clte
• Data
• Driver side j/b (behind lower left end of dash)
• E20
• Gateway ecu (behind center of dash)
• Gnd
• Gtx+
• Gtx-
• Hot in on
• Ig1 2 fuse 10a
• Ig1 fuse 10a
• J/b 1 (behind center of dash)
• J/b 2 (behind center of dash)
• Junction connector 1 (left side of engine compt)
• Junction connector 19 (right side of dash)
• Junction connector 23 (lower right side of dash)
• Junction connector 9 (left end of dash)
• Mpd1
• Mpd2
• Multi-display
• Of engine compt)
• Or start
• Pnk
• Pressure
• Red
• Switch
• Th+
• Tsl
• Tsr
• Tx1+
• Tx1-

Front A/C Wiring Diagram, with Navigation (3 of 4) for Lexus GX 470 2009

List of elements for Front A/C Wiring Diagram, with Navigation (3 of 4) for Lexus GX 470 2009:

• (behind center of dash) j/b 2
• (on right front of engine compt) pressure switch
• A/c room temperature sensor (behind lower left center of dash)
• A/c thermistor (behind right center of dash)
• A15
• Air inlet control servo motor (behind upper right end of dash, on hvac assembly)
• Air vent mode control servo motor (behind right side of dash, on hvac assembly)
• Def
• Dual
• Face
• Gnd
• Left air mix control servo motor (behind left center of dash, on hvac assembly)
• Max cool
• Max hot
• Mfrs
• Mrec
• Pnk
• Right air mix control servo motor (behind right side of dash, on hvac assembly)
• Single
• Tpi

Front A/C Wiring Diagram, with Navigation (4 of 4) for Lexus GX 470 2009

List of elements for Front A/C Wiring Diagram, with Navigation (4 of 4) for Lexus GX 470 2009:

• (on right front inner fender)
• (right side of dash) junction connector 20
• A/c condenser fan motor (right front of engine compt)
• A/c lock sensor & magnetic clutch (a/c lock sensor: on a/c compressor assembly) (a/c magnetic clutch: left front of engine, on a/c compressor)
• Ac1
• Act
• All times
• C11
• Cds fan fuse 20a
• Cds fan relay
• Combination meter
• Crankshaft position sensor (on lower front of engine)
• Dome fuse 10a
• Driver side j/b (behind lower left end of dash)
• Eg (on rear of left cylinder head)
• Engine control module (behind right side of dash)
• Engine controls system
• Engine coolant temperature sensor (on right front of engine)
• Engine room r/b (on left side of engine compt)
• Gauge fuse 7.5a
• Hot at
• Hot in
• J/b 2 (behind center of dash)
• J/b 3 (behind right side of dash)
• Junction connector (behind center of dash)
• Junction connector (right side of dash)
• K11
• Mg clt relay
• Nca
• Ne+
• Ne-
• Noise filter (condenser fan) (at right front of engine compt)
• On or start
• Red
• Speedometer
• Tach
• Tachometer
• Thw
• Thwo

Front A/C Wiring Diagram, without Navigation (1 of 4) for Lexus GX 470 2009

List of elements for Front A/C Wiring Diagram, without Navigation (1 of 4) for Lexus GX 470 2009:

• (right side of dash) junction connector 16
• A/c control assembly (behind right side of dash)
• A13
• A14
• A15
• Acld
• Aif
• Air
• Amcd
• Amcp
• Amhd
• Amhp
• Blc
• Def
• Defogger system
• Driver side j/b (behind lower left end of dash)
• Eb (on left front inner fender)
• Ecu-b fuse 10a
• Engine room r/b (on left side of engine compt)
• Face
• Frhr
• Front blower motor (behind lower right side of dash, on hvac assembly)
• Frte
• Gnd
• Heater 2 fuse 7.5a
• Heater fuse 50a
• Heater relay
• Hot at all times
• J/b 3 (behind right side of dash)
• Junction connector 14 (left side of dash)
• Junction connector 2 & 3 (left side of engine compt)
• Lock
• Mgc
• Mpx-
• Pnk
• Psw
• Rear cooler switch
• Red
• Rrdef
• Spd
• Tacc
• Tamin
• The
• Tpd
• Tpi
• Tpm
• Tpp
• Tsd
• Tsp
• Twi
• Ver 1

Front A/C Wiring Diagram, without Navigation (2 of 4) for Lexus GX 470 2009

List of elements for Front A/C Wiring Diagram, without Navigation (2 of 4) for Lexus GX 470 2009:

• (on right front
• A/c ambient temperature sensor (behind center of front grille)
• A/c solar sensor (on upper left side of dash)
• A13
• Accessory meter
• Blower motor linear controller (behind lower right center of dash)
• Body ecu (behind left end of dash)
• Cltb
• Clte
• Data
• Driver side j/b (behind lower left end of dash)
• E20
• Gnd
• Hot in on
• Ig1 2 fuse 10a
• Ig1 fuse 10a
• J/b 1 (behind center of dash)
• J/b 2 (behind center of dash)
• Junction connector 1 (left side of engine compt)
• Junction connector 19 (right side of dash)
• Junction connector 23 (lower right side of dash)
• Junction connector 9 (left end of dash)
• Of engine compt)
• Or start
• Pnk
• Pressure
• Red
• Switch
• Th+
• Tsl
• Tsr

Front A/C Wiring Diagram, without Navigation (3 of 4) for Lexus GX 470 2009

List of elements for Front A/C Wiring Diagram, without Navigation (3 of 4) for Lexus GX 470 2009:

• (behind center of dash) j/b 2
• (on right front of engine compt) pressure switch
• A/c room temperature sensor (behind lower left center of dash)
• A/c thermistor (behind right center of dash)
• A15
• Air inlet control servo motor (behind upper right end of dash, on hvac assembly)
• Air vent mode control servo motor (behind right side of dash, on hvac assembly)
• Def
• Dual
• Face
• Gnd
• Left air mix control servo motor (behind left center of dash, on hvac assembly)
• Max cool
• Max hot
• Mfrs
• Mrec
• Pnk
• Right air mix control servo motor (behind right side of dash, on hvac assembly)
• Single
• Tpi

Front A/C Wiring Diagram, without Navigation (4 of 4) for Lexus GX 470 2009

List of elements for Front A/C Wiring Diagram, without Navigation (4 of 4) for Lexus GX 470 2009:

• (at right front
• (behind right side of dash)
• (on right front inner fender)
• (right side of dash) junction connector 20
• A/c condenser fan motor (right front of engine compt)
• A/c lock sensor & magnetic clutch (a/c lock sensor: on a/c compressor assembly) (a/c magnetic clutch: left front of engine, on a/c compressor)
• Ac1
• Act
• All times
• C11
• Cds fan fuse 20a
• Cds fan relay
• Combination meter
• Crankshaft position sensor (on lower front of engine)
• Dome fuse 10a
• Driver side j/b (behind lower left end of dash)
• Eg (on rear of left cylinder head)
• Engine control module
• Engine controls system
• Engine coolant temperature sensor (on right front of engine)
• Engine room r/b (on left side of engine compt)
• Gauge fuse 7.5a
• Hot at
• Hot in
• J/b 1 (behind center of dash)
• J/b 2 (behind center of dash)
• J/b 3 (behind right side of dash)
• Junction connector (behind center of dash)
• Junction connector (right side of dash)
• K11
• Mg clt relay
• Nca
• Ne+
• Ne-
• Noise filter (condenser fan)
• Of engine compt)
• On or start
• Red
• Speedometer
• Tach
• Tachometer
• Thw
• Thwo

Rear A/C Wiring Diagram for Lexus GX 470 2009

List of elements for Rear A/C Wiring Diagram for Lexus GX 470 2009:

• (behind center of dash) j/b 2
• (behind lower left end of dash) driver side j/b
• A/c ecu (w/ navigation) a/c control assembly (w/o navigation) (behind right side of dash)
• A13
• A14
• A15
• Br (at right rear of vehicle, below taillight)
• Driver side j/b (behind lower left end of dash)
• Ecu-b fuse 10a
• Engine room r/b (on left side of engine compt)
• Gnd
• Hot at all times
• Hot in on
• Ig+
• Ig1 2 fuse 10a
• J/b 1 (behind center of dash)
• J/b 3 (behind right side of dash)
• Junction connector (right side of dash)
• Junction connector 14 (left side of dash)
• Junction connector 25 (center of dash)
• Mpx-
• Or start
• Rear cooler blower motor (at right rear of vehicle)
• Rear cooler magnetic valve (at right rear of vehicle)
• Rear cooler power transistor (at right ``d" pillar)
• Rear cooler relay (at base of right ``d" pillar)
• Rear cooler switch
• Rear cooler thermistor (at right ``d" pillar)
• Rr a/c fuse 30a
• Rrblw
• Rrhr
• Rrmgv
• Rrte
• Rrvm
• Ver 1