AIR CONDITIONING – Lexus IS 250C 2012 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for Lexus IS 250C 2012

List of elements for Automatic A/C Wiring Diagram (1 of 3) for Lexus IS 250C 2012:

75

• (right side of dash) power source control ecu
• A/c amplifier (center of dash)
• A/c fuse 7.5a
• A/c pressure sensor (left side of radiator)
• A/c pressure sensor (suction pipe sub-assembly) (m/t)
• A/c room temperature sensor (coolant thermistor) (left center of dash)
• A11
• A27
• Automatic light control sensor
• B1 (right front of engine compt)
• Ba2
• Ba3
• Bllh
• Blrh
• Blw
• Computer data lines system
• Cut +
• D12
• D13
• D29
• Dgs
• Dgs1
• Ecu-ig lh fuse 10a
• Gnd
• Hot at all times
• Htr1
• Htr2
• Ig+
• Ig1d
• J/c a33 & j80 (right a33 kick panel)
• J/c a7 & a8 (left side of engine compt)
• J/c j70 (right side of dash)
• J1 (left kick panel)
• J58
• J59
• J80
• Ja3
• Ja4
• Jk1
• Left cowl side j/b (left end of dash)
• Lh-ig fuse 10a
• Lh-ig1 relay
• Lh-ig2 relay
• Lout
• Mhtr
• Mpx+
• Mpx-
• Pnk
• Pre
• Psw
• Rdfg
• Red
• Right cowl side j/b (right end of dash)
• Rout
• S5-2
• S5-3
• S5-4
• Seat heater switch (if equipped)
• Seats system
• Sg-1
• Sg-2
• Sg-3
• Sg-4
• Sg-6
• Smog ventilation sensor (3.5l) (front of radiator)
• Sol+
• Solar sensor
• Svs5
• Svsg
• Sw4
• Sw5
• Tsd
• Tsl
• Tsp
• Tsr

Automatic A/C Wiring Diagram (2 of 3) for Lexus IS 250C 2012

List of elements for Automatic A/C Wiring Diagram (2 of 3) for Lexus IS 250C 2012:

42

• (right side of dash)
• 2.5l
• 3.5l
• A4 (right rear of engine compt)
• Acmg
• Ba2
• Can h
• Can l
• Computer data lines system
• Cooler (ambient temperature sensor) thermistor
• Cooling unit motor sub-assembly w/ fan
• Crank position sensor (left front of engine)
• E.f.i. engine coolant temperature sensor (rear of engine)
• E1 (left rear of engine)
• Ea1
• Engine control module (left front of engine compt)
• Engine room j/b 1 & engine room r/b 1 (right rear of engine compt)
• Etam
• Ethw
• Fan
• Fan1 fuse 40a
• Fan2
• Fan2 fuse 40a
• Glw plg1 fuse 50a
• Glw plg2 fuse 50a
• Glw rly 1 relay
• Glw rly 2 relay
• Gnd
• Heater fuse 50a
• Hot at all times
• J/c a8 (left side of engine compt)
• J/c e1 (left side of engine compt)
• Ja4
• Lck1
• Nca
• Ne+
• Ne-
• Pnk
• Red
• Tam
• Thw
• Water by-pass glow plug

Automatic A/C Wiring Diagram (3 of 3) for Lexus IS 250C 2012

List of elements for Automatic A/C Wiring Diagram (3 of 3) for Lexus IS 250C 2012:

40

• (left side of engine compt) j/c a10 & e1
• 2.5l
• 3.5l
• A/c amplifier (center of dash)
• A/c blower assembly
• A/c comp fuse 7.5a
• A/c comp relay
• A/c compressor
• A/c evaporator temperature sensor
• A10
• A2 (left rear of engine compt)
• Ae1
• B bus
• B2 (left front of engine compt)
• Ba1
• Bus
• Bus g
• Connector housing color (black)
• Connector housing color (green)
• Connector housing color (natural)
• Connector housing color (red)
• Cooling fan motor 1 (left front of engine compt)
• Cooling fan motor 2 (right front of engine compt)
• Damper servo motor (air inlet)
• Damper servo motor (air mix driver side)
• Damper servo motor (air mix front passenger side)
• Damper servo motor (air vent mode)
• Damper servo motor (cool air bypass)
• E1 (left rear of engine)
• Engine room r/b 2 (right side of engine compt)
• Fan 1 relay
• Fan 2 relay
• Fan 3 relay
• Flow control valve
• Hot at all times
• J/c a7 & a8 (left side of engine compt)
• J/c a9 (left side of engine compt)
• Lock sensor
• Magnetic clutch
• Red