GROUND DISTRIBUTION – Lexus RX 450h 2012 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Lexus RX 450h 2012

List of elements for Ground Distribution Wiring Diagram (1 of 5) for Lexus RX 450h 2012:

75

• (left rear of engine compt) engine room r/b 2
• (left side of engine compt) engine room j/b assembly
• (left side of engine compt) engine room r/b 3
• (w/o power back door) back door lock assembly
• A1 (left front of engine compt)
• A10 (right front of engine compt)
• A17
• A18
• A19
• A2 (left front of engine compt)
• A20
• A22
• A23
• A4 (left front of engine compt)
• A5 (right front of engine compt)
• A6 (left end of dash)
• A66
• A7 (left end of dash)
• A79
• A83
• A84
• A86
• A89
• A9 (right front of engine compt)
• A90
• Ab1
• Air sus relay
• Bk/up lp relay
• Brake actuator assembly
• C17
• Diode
• Efi main relay
• Engine hood courtesy switch
• Engine room j/b assembly (left side of engine compt)
• Engine room r/b assembly (on left side of engine compt)
• Front wiper deicer (windshield glass)
• Halogen type
• Heater water pump assembly
• Height control valve harness assembly
• Height control valve sub assembly 1
• Hid & halogen type
• Hid type
• Ig1 relay
• Ig2 relay
• Igct main relay
• Inverter assembly w/ converter
• Inverter water pump motor assembly
• J/c a58
• J/c a63
• Led type
• Left fog light assembly
• Left headlight assembly
• Oil motor pump assembly
• Oil pump relay
• P24
• P4 (left rear of luggage compt)
• P5 (right rear of luggage compt)
• Pnk
• Power back door unit assembly
• Rdi fan relay 1
• Rdi fan relay 2
• Right headlight assembly
• Rr def relay
• Skid control ecu assembly
• Smog ventilation sensor
• Stop light control relay assembly
• Towing converter
• Trailer hitch
• Windshield wiper motor assembly
• Wireless door lock buzzer
• Wp1
• Y2 (center front of luggage compt)
• Yp1
• Yp3
• Yy1

Ground Distribution Wiring Diagram (2 of 5) for Lexus RX 450h 2012

List of elements for Ground Distribution Wiring Diagram (2 of 5) for Lexus RX 450h 2012:

80

• (left side of dash) instrument panel j/b
• (left side of engine compt) j/c a57 & d41
• A11 (right front of engine compt)
• A24
• A25
• A26
• A27
• A28
• A30
• A31
• A57
• A65
• A68
• A70
• A71
• A8 (left front of engine compt)
• A85
• A91
• A92
• Acc1 relay
• Acc2 relay
• Af3
• Af8
• Air bag sensor assembly
• Bk/dr lock relay
• Blower w/ fan motor sub-assembly
• Brake fluid level warning switch
• Canister pump module
• Cooling fan ecu 1
• Cooling fan ecu 2
• D dr unlock relay
• D1 (left rear of engine)
• D3 (top of engine)
• D41
• Da2
• Dlc3
• Door lock relay
• Dr unlock relay
• Ecm
• F10
• F2 (left end of dash)
• F29
• F5 (right kick panel)
• F57
• Front power window regulator switch assembly
• Gf3
• Halogen type
• Headlight cleaner control relay
• Headlight swivel ecu assembly
• Hid & halogen type
• Hid type
• I1 (right "b" pillar)
• If2
• Ig1 relay 1
• Ig1 relay 2
• Ig1 relay 3
• Ig1 relay 4
• Ignition coil assembly
• Im1
• J/c a67
• Led type
• Left headlight assembly
• Level warning switch assembly
• Multiplex tilt & telescopic ecu
• Power steering converter assembly
• Power steering ecu assembly
• Right electrical key antenna
• Right fog light assembly
• Right front door w/ motor lock assembly
• Right front power window regulator motor assembly
• Right headlight assembly
• Right outer mirror control ecu assembly
• Seat belt control ecu
• Short connector
• Skid control ecu assembly
• Sliding roof control ecu
• Suspension control ecu
• Tg2
• W/ motor compressor assembly
• G1 (under center floor console)

Ground Distribution Wiring Diagram (3 of 5) for Lexus RX 450h 2012

List of elements for Ground Distribution Wiring Diagram (3 of 5) for Lexus RX 450h 2012:

77

• (right "b" pillar)
• (w/ memory) left front position control ecu & switch assembly
• (w/o memory) left front power seat switch
• Battery cooling blower assembly center
• Battery voltage sensor
• Door control receiver
• Fuel lid courtesy switch
• Fuel pump & fuel sender gauge assembly
• G16
• Height control valve harness assembly
• Height control valve sub- assembly 2
• Hv battery junction block assembly
• Inter lock switch
• Inverter relay
• J/c a19 (under driver's seat)
• J/c g22 (center of dash)
• J/c o30 (right "d" pillar)
• J/c o31 (right "d" pillar)
• J/c p38 (left "d" pillar)
• J/c p65 (left "d" pillar)
• J/c z23 (under front passenger's seat)
• Junction connector
• Ko1
• Left battery cooling blower assembly
• Left front power seat switch assembly
• Left front seat inner belt assembly
• Left rear combination light assembly
• Left rear door w/ motor lock assembly
• Left rear power window regulator motor assembly
• Left rear power window regulator switch assembly
• Left rear side marker light assembly
• Left seat back climate control blower
• Left seat cushion climate control blower assembly
• Left seat heater control sub- assembly
• Left seat variable cushion switch
• Lp1
• Multi-display controller sub-assembly
• O18
• O2 (right "c" pillar)
• Occupant detection ecu
• Og1
• Oz1
• Oz2
• Oz7
• P2 (left "b" pillar)
• P20
• P21
• P25
• P26
• P3 (left "c" pillar)
• P56
• Pneumatic w/ tube tank assembly
• Pz1
• Pa1
• Qo1
• Rear power point socket assembly
• Right battery cooling blower assembly
• Right front power seat switch
• Right front power seat switch assembly
• Right front seat inner belt assembly
• Right rear combination light assembly
• Right rear door w/ motor lock assembly
• Right rear power window regulator motor assembly
• Right rear power window regulator switch assembly
• Right rear side marker light assembly
• Right seat back climate control blower
• Right seat cushion climate control blower assembly
• Right seat heater control sub-assembly
• Right seat variable cushion switch
• Stereo component amplifier assembly
• Suspension control switch 2
• Vo1
• Voltage inverter assembly
• Wp1
• Z30
• Z34
• Jp1

Ground Distribution Wiring Diagram (4 of 5) for Lexus RX 450h 2012

List of elements for Ground Distribution Wiring Diagram (4 of 5) for Lexus RX 450h 2012:

66

• (w/ dynamic radar cruise control) driving support ecu assembly
• (w/ dynamic radar cruise control) millimeter wave radar sensor assembly
• (w/ navigation system) multi-display assembly
• (w/ navigation system) navigation receiver assembly
• (w/ navigation system) radio receiver assembly
• (w/ power back door) back door lock assembly
• (w/o navigation system) radio receiver assembly
• A47
• Ab1
• Ac1
• Af2
• Air bag sensor assembly
• Back door control switch
• Back door opener switch assembly
• Center stop light assembly
• Combination meter assembly
• Cruise control main switch assembly
• F1 (left kick panel)
• F16
• F29
• F3 (under center floor console)
• F40
• F97
• F98
• Front power point socket assembly 1
• Front power point socket assembly 2
• G1 (under center floor console)
• Id code box
• Instrument panel j/b (left side of dash)
• J/c f92
• J/c f93 (left side of dash)
• J/c y21 (right side of back door)
• J/c y23
• J1 (left "b" pillar)
• Jn1
• Left electrical key antenna
• Left front door w/ motor lock assembly
• Left front power window regulator motor assembly
• Left license plate light assembly
• Left outer mirror control ecu assembly
• Left rear light assembly
• Main body ecu
• Multiplex network master switch assembly
• Nca
• Option connector (check connector)
• Option connector (glass breakage sensor ecu assembly)
• Power management control ecu
• Power switch
• Rear window defogger
• Rear wiper motor & bracket assembly
• Right rear light assembly
• Seat heater switch
• Spiral cable (in steering column)
• Steering pad switch assembly
• Tire pressure warning ecu
• To j/c f65 & f66 (diagram 5 of 5)
• To j/c f94 (diagram 5 of 5)
• Transmission control switch
• Turn signal flasher assembly
• Windshield wiper switch assembly
• Y1 (center front of luggage compt)
• Y16
• Y19
• Y20
• Yaw rate sensor assembly
• Yh1

Ground Distribution Wiring Diagram (5 of 5) for Lexus RX 450h 2012

List of elements for Ground Distribution Wiring Diagram (5 of 5) for Lexus RX 450h 2012:

66

• A/c amplifier assembly
• Air fuel ratio sensor (bank 1 sensor 1) shield
• Air fuel ratio sensor (bank 2 sensor 1) shield
• Certification ecu assembly
• Clearance warning ecu assembly
• Combination meter assembly
• Crank position sensor shield
• D2 (top rear of engine)
• D4 (left front of engine compt)
• Dcm (telematics transceiver)
• Dlc3
• Door control switch assembly
• F14
• F15
• F38
• F50
• F54
• F58
• F65
• F66
• From j/c f92 (diagram 4 of 5)
• From j/c f93 (diagram 4 of 5)
• Fs2
• Fuel lid opener switch
• G13
• G20
• G21
• Gf3
• Glove box light assembly
• Gi1
• Hazard warning signal switch assembly
• Headlight dimmer switch assembly
• Heater control panel (radio receiver assembly)
• Height control off switch
• Hf2 f66
• Intake mass air flow meter sub-assembly shield
• J/c f65 & f66 (top center of dash)
• J/c f94 (right side of dash)
• J/c g20 & g21 (center of dash)
• J/c g22 (center of dash)
• Knock control sensor bank 1 & 2 shield
• Left visor assembly
• Light control rheostat
• Main body ecu
• Meter mirror sub- assembly
• Multi information display assembly
• Nca
• Option connector (remote engine starter)
• Overhead module
• Oxygen sensor (bank 1 sensor 2) shield
• Oxygen sensor (bank 2 sensor 2) shield
• Parking assist ecu
• Power back door main switch
• Power tilt motor
• Remote operation switch
• Right visor assembly
• Satellite switch set
• Shift lock control ecu sub-assembly
• Steering lock actuator assembly
• Steering sensor
• Suspension control switch
• Tg2
• Throttle w/ motor body assembly shield
• Tire pressure warning reset switch
• Vsc off switch
• Water temperature switch