AIR CONDITIONING – Lexus RX 300 2003 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Lexus RX 300 2003

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Lexus RX 300 2003:

• (behind upper center of dash) j/b 3
• (in dash harness, behind right side of dash)
• A/c ambient temperature sensor (behind left front grille)
• A/c evaporator temperature sensor (behind right side of dash)
• A/c room temperature sensor (behind left center of dash)
• A/c solar sensor (behind upper left side of dash)
• A10
• A13
• Abs ind
• Acc
• Aif
• Air
• Air inlet control servo motor (behind right side of dash)
• Air mix control servo motor (behind right side of dash)
• Air vent mode control servo motor (behind right side of dash)
• Amc
• Amh
• Anti-lock brakes system
• Aod
• Aof
• B1+
• B12
• Blw
• Brake ind
• C12
• C13
• C14
• Cds fuse 40a
• Cellular phones system instrument cluster system
• Comb mtr input
• Combination meter ecu (behind combination meter)
• Computer data lines system exterior lights system
• Cruise control system
• Cruise ind
• E10
• Engine controls system
• Exterior lights system
• Fusible link block (in engine room j/b)
• Gauge fuse 7.5a
• Gnd
• Gnd1
• Headlights system
• Heater fuse 15a
• Heater fuse 50a
• High beam
• High beam ind
• Hot at all times
• Hot in on or acc
• Hot in on or start
• I10
• I11
• I16
• I18
• Ig+
• Ih (at right dash brace)
• Instrument cluster system
• Instrument control panel
• Instrument panel j/b (behind left side of dash)
• Interior lights system
• J/b 3 (behind upper center of dash)
• J/b 5 (behind upper left side of dash)
• K10
• K13
• Mal ind
• Mpx+
• Mpx-
• Multi display
• O/d off ind
• Pnk
• Radio 2 fuse 7.5a
• Rdi fuse 40a
• Red
• S5-1
• S5-2
• S5-3
• Sg-1
• Sg-2
• Sg-3
• Sg-5
• Slip ind
• Srs ind
• Tam
• Tel1
• Tpi
• Tpo
• Trac off ind
• Turn left sig
• Turn right sig
• Tx+
• Tx-
• W/ nav
• W/o nav
• W/o nav red

Automatic A/C Wiring Diagram (2 of 2) for Lexus RX 300 2003

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Lexus RX 300 2003:

• (at rear of surge tank) ec
• A/c condenser fan motor (in right front of engine compt)
• A/c magnetic clutch & lock sensor (on a/c compressor assembly)
• A/c triple pressure switch
• Acmg
• Blower motor (behind right side of dash)
• Blower motor control relay (near blower motor)
• Body ecu (behind left side of dash)
• Computer data lines system
• Diode (a/c) (behind upper left side of dash)
• Dome fuse 10a
• Dual
• E10 (in engine harness, at left front of engine compt)
• E9 (near battery)
• Ea (at right side of engine compt)
• Ecu-b fuse 7.5a
• Ed (at left side of radiator support)
• Engine control module (behind right side of dash)
• Engine room j/b (on left side of engine compt)
• Fan 1 relay
• Fan 2 relay
• Fan 3 relay
• G10
• Gnd
• Heater relay (beside instrument panel j/b)
• Hot at all times
• Ig (behind right kick panel)
• Instrument panel j/b (behind left side of dash)
• J/b 5 (behind upper left side of dash)
• Junction connector 1 (in engine compt, on right front fender)
• Junction connector 10 (behind right side of dash)
• Junction connector 2 (in left front of engine compt, behind headlight)
• Junction connector 4 (behind left kick panel)
• Junction connector 9 (behind right kick panel)
• Lcki
• Mg clt relay
• Mpx1
• Mpx2
• Pre
• R/b 2 (in engine room j/b)
• Radiator fan motor (in left front of engine compt)
• Red
• Red c
• Single
• Water temperature switch 1 (in right front of engine compt)
• Water temperature switch 2 (on top rear of engine)