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Home >> Lexus >> 2011 >> RX 450h 3.5 B >> Repair and Diagnosis >> Electrical >> Fuses & Circuit Breakers >> OEM Junction Block, Ecu & Fuse/Relay Locations >> Relay Block Identification >> Engine Room Relay Block Assembly And Engine Room Junction Block Assembly
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Engine Room Relay Block Assembly And Engine Room Junction Block Assembly

Front Fender Apron LH  (See Figure)

Fig 1: Engine Room R/B And J/B Assembly Fuse & Relay Identification
G07605236Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ENGINE ROOM R/B AND J/B RELAY IDENTIFICATION

RELAY DESCRIPTION
Air SUS Relay
Deicer Relay
IG1 Relay
EMI Main Relay
C/OPN Relay
IG2 Relay
F/PMP Relay
RR DEF Relay
RDI Fan No. 1 Relay
ENGINE ROOM R/B AND J/B FUSE IDENTIFICATION LEGEND

Fuse System
7.5A AFS Adaptive Front-Lighting System or Headlight Beam Level Control
7.5A AM2 Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
7.5A BK/UP LP Back-Up Light
Parking Assist (Rear View Monitor w/o LEXUS Navigation System)
7.5A ECU-B NO. 2 Air Conditioning
Audio System (w/ LEXUS Navigation System), LEXUS Navigation System and Parking Assist (Rear View Monitor w/ LEXUS Navigation System)
Audio System (w/o LEXUS Navigation System)
Door Lock Control
EPS
Power Window
Remote Control Mirror
Seat Belt Warning
SRS
Theft Deterrent
7.5A HEATER NO. 2 Air Conditioning
Front Window Deicer
Rear Window Defogger and Mirror Heater
7.5A IMMOBI Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
7.5A MAYDAY/TEL LEXUS ENFORM or Safety Connect
7.5A S-HORN Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
Theft Deterrent
7.5A STOP Air Suspension
Hybrid System
Pre-Collision System
Shift Lock
Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
Stop Light
Trailer Towing
Vehicle Dynamics Integrated Management (for Hybrid Vehicle)
7.5A WIP-S Hybrid System
10A BIXENON Headlight
10A DOME Interior Light
Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
Theft Deterrent
10A ECU IG1 Adaptive Front-Lighting System or Headlight Beam Level Control
Air Suspension
Cooling Fan
Headlight Cleaner
Hybrid System
Pre-Collision System
10A ECU-B NO. 1 Adaptive Front-Lighting System or Headlight Beam Level Control
Air Conditioning
Air Suspension
Audio System (w/ LEXUS Navigation System), LEXUS Navigation System and Parking Assist (Rear View Monitor w/ LEXUS Navigation System)
Audio System (w/o LEXUS Navigation System)
Automatic Light Control and Light Auto Turn Off System
Combination Meter
Door Lock Control
EPS
Front Fog Light
Front Wiper and Washer (w/ Auto Wiper System)
Fuel Lid Opener
Garage Door Opener
Headlight
Headlight Cleaner
Hybrid System
Illumination
Interior Light
LEXUS ENFORM or Safety Connect
Parking Assist (Intuitive Parking Assist w/o Side Monitor)
Power Back Door
Power Seat (Driver's Seat w/ Seat Position Memory)
Power Tilt and Power Telescopic
Power Window
Pre-Collision System
Rear Window Defogger and Mirror Heater
Remote Control Mirror
Seat Belt Warning
Sliding Roof
Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
SRS
Taillight
Theft Deterrent
Tire Pressure Warning System
Turn Signal and Hazard Warning Light
Vehicle Dynamics Integrated Management (for Hybrid Vehicle)
10A EFI NO. 1 Hybrid System
10A EFI NO. 2 Hybrid System
10A ETCS Hybrid System
10A HORN Horn
Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
Theft Deterrent
10A IGN Combination Meter
Hybrid System
Ignition
10A RAD NO. 1 Audio System (w/ LEXUS Navigation System), LEXUS Navigation System and Parking Assist (Rear View Monitor w/ LEXUS Navigation System)
Parking Assist (Back Guide Monitor/Rear View Monitor, Side Monitor and Intuitive Parking Assist)
15A Electronically Controlled Brake System MAIN NO. 3 Vehicle Dynamics Integrated Management (for Hybrid Vehicle)
15A F/PMP Hybrid System
15A HAZ Trailer Towing
Turn Signal and Hazard Warning Light
15A H-LP LH HI Headlight
15A H-LP LH LO Headlight
15A H-LP RH HI Headlight
15A H-LP RH LO Headlight
15A RAD NO. 3 Audio System (w/ LEXUS Navigation System), LEXUS Navigation System and Parking Assist (Rear View Monitor w/ LEXUS Navigation System)
Audio System (w/o LEXUS Navigation System)
Parking Assist (Back Guide Monitor/Rear View Monitor, Side Monitor and Intuitive Parking Assist)
20A A/F Hybrid System
20A STR LOCK Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
25A DEICER Front Window Deicer
25A IP J/B Door Lock Control
Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
30A AMP1 Audio System (w/ LEXUS Navigation System), LEXUS Navigation System and Parking Assist (Rear View Monitor w/ LEXUS Navigation System)
Audio System (w/o LEXUS Navigation System)
30A AMP2 Audio System (w/ LEXUS Navigation System), LEXUS Navigation System and Parking Assist (Rear View Monitor w/ LEXUS Navigation System)
30A EFI MAIN Hybrid System
30A H-LP CLN Headlight Cleaner
30A HV R/B NO. 1 Air Conditioning
Audio System (w/ LEXUS Navigation System), LEXUS Navigation System and Parking Assist (Rear View Monitor w/ LEXUS Navigation System)
Back-Up Light
Door Lock Control
Hybrid System
Parking Assist (Back Guide Monitor/Rear View Monitor, Side Monitor and Intuitive Parking Assist)
Parking Assist (Intuitive Parking Assist w/o Side Monitor)
Parking Assist (Rear View Monitor w/o LEXUS Navigation System)
Power Back Door
Power Seat (Driver's Seat w/ Seat Position Memory)
Power Tilt and Power Telescopic
Remote Control Mirror
Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
30A PBD Interior Light
Power Back Door
Theft Deterrent
30A TOWING Trailer Towing
40A RDI FAN NO. 1 Cooling Fan
40A RDI FAN NO. 2 Cooling Fan
50A AIR SUS Air Suspension
50A Electronically Controlled Brake System NO. 1 Vehicle Dynamics Integrated Management (for Hybrid Vehicle)
50A Electronically Controlled Brake System NO. 2 Vehicle Dynamics Integrated Management (for Hybrid Vehicle)
50A HEATER Air Conditioning
50A PD Automatic Light Control and Light Auto Turn Off System
Headlight
Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
Theft Deterrent
50A RR DEF Rear Window Defogger and Mirror Heater
150A DCDC Automatic Light Control and Light Auto Turn Off System
Front Fog Light
Hybrid System
Illumination
Smart Access System with Push-Button Start and Back Door Opener (w/o Power Back Door)
Taillight
Theft Deterrent
Trailer Towing
Fig 2: Engine Room R/B And J/B Assembly Fuse/Relay Locations (Unit A)
G07605237Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002