AIR CONDITIONING – Toyota Highlander Hybrid Limited 2012 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

A/C Wiring Diagram, Except Hybrid (1 of 2) for Toyota Highlander Hybrid Limited 2012

List of elements for A/C Wiring Diagram, Except Hybrid (1 of 2) for Toyota Highlander Hybrid Limited 2012:

• (3.5l) mg/clt relay
• (behind right side of dash) j/c d53 & e24
• (if equipped) steering pad switch assembly
• (left front of engine) (3.5l) magnetic clutch compressor assembly
• (or red)
• 2.7l
• 3.5l
• A/c 1 fuse 10a
• A/c 2 fuse 10a
• A/c amplifier (behind right side of dash)
• A/c blower (under right side of dash)
• A/c control assembly
• A/c evaporator temperature sensor
• A/c pressure sensor (right front engine compt)
• Ad13
• Ad2
• Ad4
• Adi1
• Alt
• Ambient temperature sensor (behind center of front bumper)
• Auto
• B bus
• Ba1
• Bd1
• Bd3
• Blw
• Bus
• Bus g
• Canh
• Canl
• Computer data lines system
• Connector housing color (black)
• Connector housing color (green)
• Connector housing color (red)
• Cooler compressor (3.5l) (left front of engine)
• D12
• D16
• D2 (behind center of dash)
• D3 (behind right side of dash)
• D3 (behind right side of rear bumper)
• D37
• D53
• 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)
• Defogger system
• E1 (behind left side of dash)
• E24
• Ed1
• Ed5
• Efi main fuse 25a
• Engine room r/b (left side of engine compt)
• F14
• F16
• Fdef
• Floq
• Front blower w/ fan motor (under right side of dash)
• Gauge fuse 10a
• Gnd
• Hot at all times
• Hot w/ ig1 relay energized
• Htr fuse 50a
• Ig+
• Ill+
• Ill-
• Instrument panel j/b (behind left end of dash)
• Interior lights system
• J/c d52 (behind right side of dash)
• J/c d53 (behind right side of dash)
• J/c d56 (behind right side of dash)
• Lin1
• Lock
• Lock sensor
• M17
• Magnetic clutch
• Mgc
• Mhtr
• Off
• Pnk
• Pre
• Ptc 1 fuse 50a
• Ptc 2 fuse 30a
• Ptc 3 fuse 30a
• Ptc1
• Ptc2
• Ptc3
• Qufl
• Rdef
• Rear window defogger switch
• Red
• S5-1
• S5-3
• Seats system
• Sg-2
• Sg-4
• Sga
• Sgfl
• Shd+
• Shp+
• Sol+
• Sol-
• Spiral cable assembly (in steering column)
• Ssfl
• Starting/ charging system
• Swi
• Tam
• Tea
• Temp+
• Temp-
• Tsd
• Tsp
• W/ pulley compressor assembly
• W/ rear a/c
• Z17

A/C Wiring Diagram, Except Hybrid (2 of 2) for Toyota Highlander Hybrid Limited 2012

List of elements for A/C Wiring Diagram, Except Hybrid (2 of 2) for Toyota Highlander Hybrid Limited 2012:

• (3.5l) efi relay
• (behind center of dash)
• (behind center of dash) (w/ ptc heater) quick heater assembly
• (behind left front headlight) a8
• (behind radiator)
• (behind right quarterpanel) (w/ rear a/c) rear blower w/ fan motor
• (if equipped) ptc htr1 relay
• (if equipped) ptc htr2 relay
• (if equipped) ptc htr3 relay
• (left side of engine compt) engine room j/b
• (right side of engine compt) engine room r/b 2
• +b1
• +b2
• 2.7l
• 3.5l
• A/c amplifier (behind right side of dash)
• A/c control assembly 2 (w/ rear a/c)
• A/c evaporator temperature sensor
• A/c solar sensor
• A3 (behind left front headlight)
• A7 (behind left headlight assembly)
• Ad10
• Ad2
• Ad9
• Automatic light control sensor (automatic a/c) (under top center of dash)
• B49
• B50
• B51
• Blower motor control (w/ rear a/c)
• Blwh
• Canh
• Canl
• Computer
• Connector housing color (brown)
• Connector housing color (gray)
• Cooling fan ecu (front of engine compt)
• Cooling fan motor
• Cooling fan motor 2
• D3 (behind right side of dash)
• D38
• D44
• D45
• D6 (behind center of dash)
• D60
• D61
• Damper servo motor (air mix)
• Damper servo motor (air vent mode)
• Data lines
• Defogger system
• Dn1
• Dn3
• E10
• E11
• E12
• Ecm (behind right side of dash)
• Ed5
• Efi engine coolant temperature sensor (rear of engine)
• Engine room r/b (left side of engine compt)
• Ethw
• Fan main fuse 50a
• Fan main relay
• Fdfi
• Fe1
• Front room temperature sensor (automatic a/c) (behind left side of dash)
• Gnd
• Gnd2
• Hot at all times
• Ig+
• Ill+
• Ill-
• Interior lights system
• J/c d52 (behind right side of dash)
• J/c d64 (left side of dash)
• M+(m)
• M+(s)
• M-(m)
• M-(s)
• Main fan motor
• Mpx-
• Mrel
• N2 (in right "d" pillar)
• Pnk
• Rbbu
• Rbug
• Rbus
• Rd1
• Rear cooling unit (w/ rear a/c) (at right "d" pillar)
• Rear evaporator sub assembly (w/ rear automatic a/c) (behind right quarterpanel)
• Red
• Rfc
• Rlin
• Rr clr fuse 40a
• Seats system
• Sg-6
• Sgnd
• Shdt
• Shpt
• Sub fan motor
• System
• Tec
• Thw
• Tsl
• Tsr
• W/ rear a/c
• Z11
• Z12

A/C Wiring Diagram, Hybrid (1 of 3) for Toyota Highlander Hybrid Limited 2012

List of elements for A/C Wiring Diagram, Hybrid (1 of 3) for Toyota Highlander Hybrid Limited 2012:

• (center of dash) j/c d53 & e24
• +bwp
• A/c 2 fuse 10a
• A/c amplifier assembly (right side of dash)
• A/c blower assembly
• A/c control assembly
• A/c evaporator temperature sensor
• A74
• Ad10
• Ad12
• Ad4
• Adi1
• Auto
• B bus
• Ba2
• Blw
• Bus
• Bus g
• Canh
• Canl
• Computer data lines system
• Connector housing color (black)
• Connector housing color (green)
• Connector housing color (red)
• D12
• D16
• D17
• D3 (right center of dash)
• D37
• D53
• 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)
• Defogger system
• E1 (left side of dash)
• E24
• Ed1
• Ed5
• Engine room r/b (left side of engine compt)
• F14
• F16
• Fdef
• Fr wip fuse 30a
• Gauge 1 fuse 10a
• Gnd
• Hot at all times
• Hot w/ ig1 relay energized
• Hv r/b 1 fuse 30a
• Ig+
• Ill+
• Ill-
• Instrument panel j/b (left side of dash)
• Interior lights system
• Inverter water pump (left front of engine compt)
• J/c a74 & d77 (right side of dash) d77
• J/c a75 (left front of engine compt)
• J/c d53 (right side of dash)
• J/c d56 (right side of dash)
• Lin1
• Mhtr
• Nwp
• Off
• Pnk
• Pre
• Rdfg
• Rear window defogger switch
• Red
• S5-3
• S5-4
• Seats system
• Sg-2
• Sg-4
• Sga
• Shd+
• Shp+
• Spiral cable assembly (steering column assembly)
• Steering pad switch assembly
• Sw1
• Swp
• Tam
• Tea
• Temp+
• Temp-
• Tsd
• Tsp
• W/ steering a/c switch
• Windshield wiper motor (left rear of engine compt)
• Wip
• Wip-s fuse 10a
• Z17

A/C Wiring Diagram, Hybrid (2 of 3) for Toyota Highlander Hybrid Limited 2012

List of elements for A/C Wiring Diagram, Hybrid (2 of 3) for Toyota Highlander Hybrid Limited 2012:

• (left side of engine compt) heater water pump
• +b2
• A/c pressure sensor (right side engine compt)
• A/c solar sensor
• A/c w/p relay
• A/c w/pmp fuse 7.5a
• A11 (left front of engine compt)
• A3 (left front of engine compt)
• A41
• A65
• A66
• Acpb
• Acpe
• Ad10
• Ad2
• Ad4
• Ambient temperature sensor (front center of grill)
• Automatic a/c
• Automatic light control sensor (automatic a/c) (center of dash)
• B48
• B5 (top center of engine)
• Ba3
• Ca1h
• Ca1l
• Canh
• Canl
• Clk
• Cltb
• Clte
• Compressor motor assembly (left front of engine)
• Computer data lines system
• Cooling fan ecu 2 (behind center of radiator)
• Cooling fan motor 2 (behind right side of radiator)
• D2 (left center of dash)
• D73
• Din
• Dn1
• Dout
• Ecu-b fuse 7.5a
• Ed4
• Ed5
• Engine room r/b (left side of engine compt)
• Engine room relay box 2
• Eti
• Fe1
• Front blower w/ fan motor (right side dash)
• Front room temperature sensor (left center of dash)
• Gnd
• Hot at all times
• Htr fuse 50a
• Hybrid vehicle control ecu (right side of dash)
• Ig1
• Igct main relay
• Instrument panel j/b (left side of dash)
• Inv w/p fuse 10a
• Inverter/converter assembly (left front of engine compt)
• Ite
• Iwp
• J/c a40 (left end of dash)
• M+(s)
• M-(s)
• M18
• Main body ecu (left side of dash)
• Manual a/c
• Mrel
• Nca
• Niwp
• Pnk
• Red
• Rr clr fuse 40a
• Si2
• Stb
• Stbi
• Sub fan motor
• Tsl
• Tsr
• Z12

A/C Wiring Diagram, Hybrid (3 of 3) for Toyota Highlander Hybrid Limited 2012

List of elements for A/C Wiring Diagram, Hybrid (3 of 3) for Toyota Highlander Hybrid Limited 2012:

• (right "d" pillar) n1
• (right "d" pillar) n2
• +b1
• +b2
• A/c amplifier assembly (right side of dash)
• A/c control assembly 2
• A/c evaporator temperature sensor
• A11
• A11 (left front of engine compt)
• A3 (left front of engine compt)
• A67
• B57
• Blower motor control (right quarterpanel)
• Blwh
• Canh
• Canl
• Computer data lines system
• Connector housing color (brown)
• Connector housing color (gray)
• Cooling fan ecu (behind center of radiator)
• Cooling fan motor (behind left side of radiator)
• D3 (right center of dash)
• D38
• Damper servo motor (air mix)
• Damper servo motor (air vent mode)
• Defogger system
• Dn3
• Ecm (right front of engine compt)
• Efi engine coolant temperature sensor (top rear of engine)
• Engine room j/b (left side of engine compt)
• Engine room r/b (left side of engine compt)
• Engine room r/b 3 (left side of engine compt)
• Ethw
• Fan fuse 50a
• Fdfi
• Gnd
• Gnd2
• Hot at all times
• Ig+
• Ill+
• Ill-
• Interior lights system
• J/c a40 (left end of dash)
• J/c d52 (right side of dash)
• J/c d79 (center of dash)
• M+(m)
• M-(m)
• Main fan motor
• Mpx-
• N22
• N23
• Noise filter (rear a/c) (w/ rear automatic a/c) (left front corner of engine compt)
• Rbbu
• Rbug
• Rbus
• Rd1
• Rdi fan relay 1
• Rdi fan relay 2
• Rear blower w/ fan motor (right quarterpanel)
• Rear cooling unit assembly (base of right "d" pillar)
• Rear evaporator (w/ rear automatic a/c) (right rear quarterpanel)
• Red
• Rfc
• Rlin
• Seats system
• Sg-6
• Sgnd
• Shdt
• Shpt
• Ssr+
• Ssr-
• Ssrg
• Tec
• Thw
• Z11