AIR CONDITIONING – Lexus GS 300 2005 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Lexus GS 300 2005

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Lexus GS 300 2005:

• (at middle of left inner fender panel) eb
• (behind left side of dash) gateway ecu
• (behind left side of dash) tilt & telescopic ecu
• (behind right side of dash) air inlet control servo motor
• (gs 300)
• (gs 430) ethw
• (gs 430) steering pad sw (combination switch)
• (in dash harness, behind instrument cluster) i1
• (in dash harness, under center air vents)
• (in engine harness, inside of ecu box) e4
• A/c control assembly (behind center of dash)
• A/c dual pressure switch
• A/c room temperature sensor (behind center of dash)
• A/c solar sensor (at upper right side of dash)
• A/c thermistor (behind center of dash)
• A13
• A14
• Acc
• Acmg
• Aif
• Air
• Air mix control servo motor (driver) (behind center of dash)
• Air vent mode control servo motor (behind right side of dash)
• Amcdr
• Amcpa
• Amhdr
• Amhpa
• Aod
• Aof
• Blw
• Dgs
• Driver side j/b (behind left kick panel)
• E2 (gs 300)
• E2 (in engine harness, at left rear top of engine)
• Ecu-b2 fuse 10a
• Engine control module (at left side of engine compt, in ecu box)
• Engine coolant temperature sensor (3.0l: on top left front of engine) (4.3l: on top right side of engine)
• Etam
• F13
• Gnd
• Gs 300
• Gs 430
• Hot at all times
• Hot in acc or on
• I2 (in dash harn, under center air vents)
• Ii (at right side of dash)
• Ill
• Instrument panel j/b (behind upper center of dash)
• Interior lights system
• Junction connector 17 (behind upper right side of dash)
• Junction connector 18 (behind right kick panel)
• Lcki
• Mfrs
• Mpd1
• Mpd2
• Mpx+
• Mpx-
• Mpx1
• Mpx2
• Mrec
• Passenger side j/b (behind right kick panel)
• Pre
• Radio fuse 15a
• Red
• S5-2
• S5-3
• S5-4
• Sg-1
• Sg-3
• Sg-4
• Sg-5
• Tam
• Tel in
• Telephone transceiver & speaker relay (at right side of luggage compartment)
• Teli
• Thw
• Tpdr
• Tpi
• Tpo
• Tppa
• Tsdr
• Tspa

Automatic A/C Wiring Diagram (2 of 2) for Lexus GS 300 2005

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Lexus GS 300 2005:

• (at middle of left inner fender panel) eb
• (at right side of dash) ii
• (in engine harness, inside of ecu box) e4
• A/c ambient temperature sensor (near top left side of radiator support)
• A/c comp relay
• A/c condenser fan motor (on front left side of radiator)
• A/c magnetic clutch & lock sensor (on a/c compressor)
• A/c single pressure switch
• Air mix control servo motor (passenger) (behind right side of dash)
• Blower motor (behind lower right side of dash)
• Blower motor controller (behind right side of dash)
• Body ecu 1
• Cds fan fuse 30a
• Driver side j/b (behind left kick panel)
• E1 (in engine harness, at front of engine)
• Ed (at rear of intake manifold)
• Ed (on left cylinder head)
• Engine room r/b 1 (on right side of engine compartment, behind strut tower)
• Engine room r/b 3 (on left side of engine compartment, front of strut tower)
• Exhaust gas sensor (at left front of engine compartment)
• F12
• Fan 1 relay
• Fan 2 relay
• Fan 3 relay
• Gas
• Gnd
• Gs 300
• Gs 430
• Heater fuse 10a
• Heater fuse 50a
• Hot at all times
• Hot in on or start
• Htr relay
• I1 (in dash harness, behind instrument cluster)
• I6 (in dash harness, behind right side of glove box)
• Ig (at left side of dash)
• Ign fuse 5a
• Junction connector (behind left side of dash)
• Junction connector (behind upper right side of dash)
• Junction connector 2 (in ecu box)
• Junction connector 26 (in ecu box)
• Passenger side j/b (behind right kick panel)
• Passenger side r/b (behind right kick panel)
• Radiator fan motor (at left front of engine compt)
• Rdi fan fuse 30a
• Red
• Water temperature switch (at front of engine compartment, behind left side of grille)