AIR CONDITIONING – Lexus LS 400 1999 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Lexus LS 400 1999

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Lexus LS 400 1999:

• (a/c sub 1 right wire harness, top right center of dash) i48
• (engine room main wire harness, behind left headlight) e8
• (instrument panel wire harness, top right center of dash) (w/o lexus navigation) i25 (w/lexus navigation) 126
• A/c control assembly (behind center of dash)
• A/c dual pressure switch (at upper left radiator support, integral to a/c triple pressure switch)
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• A19
• A20
• A21
• A22
• A23
• A24
• A25
• A26
• Abol
• Abor
• Absl
• Absr
• Acc
• Acmg
• Aif
• Air
• Air inlet control servo motor (behind right side of dash)
• Air mix control servo motor (driver side) (behind center of dash)
• Air mix control servo motor (passenger side) (behind right side of dash)
• Air vent mode control servo motor (driver side) (behind center of dash)
• Air vent mode control servo motor (passenger side) (behind right side of dash)
• Aml1
• Aml2
• Aml3
• Aml4
• Amr1
• Amr2
• Amr3
• Amr4
• Aol1
• Aol2
• Aol3
• Aol4
• Aor1
• Aor2
• Aor3
• Aor4
• Blw
• Body ecu (behind left side of dash)
• C10
• C11
• C12
• C18
• Cool air bypass servo motor (driver side) (behind center of dash)
• Cool air bypass servo motor (passenger side) (behind right side of dash)
• D10
• D11
• D12
• D13
• D14
• D15
• D16
• D17
• D18
• D19
• D20
• D21
• D22
• Defogger system
• Dgs
• E11
• E13
• E16
• Engine control module (behind right side of dash)
• F11
• F21
• F22
• F23
• F24
• G206 (left dash brace)
• Gnd
• Hot in acc or on
• Ig+
• Ill+
• Instrument cluster system
• Instrument panel j/b (at rear of parking brake release lever)
• Interior lights system
• J/c 12 (behind upper center of dash)
• J/c 16 (behind upper center of dash)
• Lcki
• Mpx+
• Mpx-
• Mpx1
• Mpx2
• Multi display (w/lexus navigation system)
• Pbew
• Pnk
• Pre
• Radio no.2 fuse 15a
• Rdfg
• Rec- irc
• Reost
• Right fender) g101
• Tam
• Tel1
• Telephone transceiver & speaker relay (at right side of luggage compartment)
• Tfal
• Tfar
• Tpbl
• Tpbr
• Tpi
• Tsl
• Tsr
• W/o lexus navigation system
• W/o navigation system
• Wvo
• Wvs

Automatic A/C Wiring Diagram (2 of 2) for Lexus LS 400 1999

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Lexus LS 400 1999:

• (a/c sub 1 left wire harness, top left center of dash)
• (a/c sub 1 right wire harness, top right center of dash) i48
• (at front of engine compartment, near right side of radiator support) engine coolant temperature switch
• (engine room main wire harness, near left headlight)
• (engine room main wire harness, near left headlight) e8
• (front side of right fender) g101
• (on left side of engine compartment, forward of strut tower) engine room j/b
• (right rear side of cylinder head) g117
• A/c ambient temperature sensor (behind right center of bumper)
• A/c evaporator temperature sensor (behind right center of dash)
• A/c fuse 7.5a
• A/c magnetic clutch (on a/c compressor)
• A/c room temperature sensor (behind center of dash)
• A/c single pressure switch (at upper left radiator support, integral to a/c triple pressure switch)
• A/c solar sensor (at upper right side of dash)
• B12
• B13
• Blower controller (behind right side m+ of dash)
• Blower motor (behind lower right side of dash)
• C12
• C21
• Center j/b (behind instrument cluster)
• Combination meter
• D11
• Driver side j/b (behind left kick panel)
• Duct sensor (driver side) (behind left side of dash)
• Duct sensor (passenger side) (behind upper right side of dash)
• E11
• Engine room j/b (on left side of engine compartment, forward of strut tower)
• Exhaust gas sensor (at front of engine compartment, near right center of radiator support)
• Fusible link block (on left side of engine compartment, forward of strut tower)
• G101 (front side of right fender)
• G201 (right side of dash)
• Gas
• Gnd
• Heater fuse 10a
• Heater fuse 50a
• Heater relay
• Hot at all times
• Hot in on or start
• Hot in on or start
• I47
• In line diode
• Instrument panel j/b (at rear of parking brake release lever)
• J/c 10 (behind right side of dash)
• J/c 13 (behind upper center of dash)
• J/c 3 (behind right kick panel)
• J11
• Mg clt relay
• Open
• R/b 6 (under left headlight)
• Radiator fan motor & resistor (at right front of engine compartment)
• Rdi fan 1 relay
• Rdi fan 2 relay
• Rdi fan fuse 30a
• Red
• Shut
• Water valve servo motor (behind center of dash)