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Engine Room Relay Block Assembly And Engine Room Junction Block Assembly: Front Fender Apron LH: Overview

For additional information, refer to Figure.

Fig 1: Engine Room R/B And J/B Assembly Fuse & Relay Identification
G00406158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ENGINE ROOM R/B AND J/B RELAY IDENTIFICATION

RELAY NUMBER RELAY DESCRIPTION
*1 Towing Tail Relay
*2 Air SUS Relay
*3 SUS BATT Relay
*22 Washer RR Relay
*23 S-Horn Relay
*24 A/C COMP Relay
*25 AI-VSV Relay
*26 ST Relay
*27 BKUP LP No. 2 Relay
*28 H-LP LO Relay
*29 Fuel PMP Relay
*30 DEF Relay
*31 CDS Fan Relay
*32 INV Relay
*33 DOME Relay
*34 AIR PMP HTR Relay
*35 C/OPN Relay
*37 H-LP HI Relay
ENGINE ROOM R/B AND J/B FUSE IDENTIFICATION LEGEND

Fuse System
7.5A AIR SUS NO. 2 Electronic Modulated Air Suspension
7.5A ALT-S Charging
7.5A AM2 Engine Immobiliser System, Smart Access System with Push-Button Start, Starting, Steering Lock and Wireless Door Lock Control
7.5A MAYDAY LEXUS ENFORM or Safety Connect
7.5A SMART Engine Immobiliser System, Smart Access System with Push-Button Start, Starting, Steering Lock and Wireless Door Lock Control
7.5A WIP FR NO. 2 Dynamic Radar Cruise Control and Lane Departure Alert
7.5A WSH FR NO. 2 Dynamic Radar Cruise Control and Lane Departure Alert
10A A/C COMP Air Conditioning
10A DOME Engine Immobiliser System, Smart Access System with Push-Button Start, Starting, Steering Lock and Wireless Door Lock Control
Interior Light
10A DRL Headlight
10A ECU-B ABS, A-TRAC, Brake Assist, Crawl, Downhill Assist Control, EBD, Hill-Start Assist Control, Multi-Terrain Select and VSC
Adaptive Front-Lighting System
Air Conditioning
Audio System (17 Speaker w/LEXUS Navigation System), LEXUS Navigation System (17 Speaker), Multi-Terrain Monitor (17 Speaker w/LEXUS Navigation System) and Parking Assist (Rear View Monitor and Wide-View Front & Side Monitor) (17 Speaker w/LEXUS Navigation System)
Audio System (9 Speaker w/LEXUS Navigation System), LEXUS Navigation System (9 Speaker), Multi-Terrain Monitor (9 Speaker w/LEXUS Navigation System) and Parking Assist (Rear View Monitor and Wide-View Front & Side Monitor) (9 Speaker w/LEXUS Navigation System)
Audio System (w/o LEXUS Navigation System)
Automatic Light Control and Light Auto Turn Off System
Center Differential Lock
Charging
Combination Meter
Cool Box
Cruise Control, Electronically Controlled Transmission and A/T Indicator and Engine Control
Door Lock Control
Dynamic Radar Cruise Control and Lane Departure Alert
Electronic Modulated Air Suspension
Engine Immobiliser System, Smart Access System with Push-Button Start, Starting, Steering Lock and Wireless Door Lock Control
Front Fog Light
Front Wiper and Washer
Garage Door Opener
Glass Hatch Opener
Headlight
Headlight Cleaner
Illumination and Taillight
Interior Light
Kinetic Dynamic Suspension System
LEXUS ENFORM or Safety Connect
Mirror Heater and Rear Window Defogger
Multi Information Display, Multi-Terrain Monitor (w/o LEXUS Navigation System) and Parking Assist (Rear View Monitor and Wide-View Front & Side Monitor) (w/o LEXUS Navigation System)
Parking Assist (Intuitive Parking Assist)
Power Rear No. 2 Seat with Stowing Function
Power Seat (Driver's Seat)
Power Tilt and Power Telescopic
Power Window
Pre-Collision System
Rear Wiper and Washer
Remote Control Mirror
Seat Belt Warning
Sliding Roof
SRS
Theft Deterrent
Tire Pressure Warning System
10A EFI NO. 2 Cruise Control, Electronically Controlled Transmission and A/T Indicator and Engine Control
10A ETCS Cruise Control, Electronically Controlled Transmission and A/T Indicator and Engine Control
Dynamic Radar Cruise Control and Lane Departure Alert
10A FUEL OPN Fuel Lid Opener
10A HORN Horn
10A INJ Cruise Control, Electronically Controlled Transmission and A/T Indicator and Engine Control
Ignition
10A SECURITY Theft Deterrent
10A STOP ABS, A-TRAC, Brake Assist, Crawl, Downhill Assist Control, EBD, Hill-Start Assist Control, Multi-Terrain Select and VSC
Cruise Control, Electronically Controlled Transmission and A/T Indicator and Engine Control
Dynamic Radar Cruise Control and Lane Departure Alert
Electronic Modulated Air Suspension
Engine Immobiliser System, Smart Access System with Push-Button Start, Starting, Steering Lock and Wireless Door Lock Control
Pre-Collision System
Shift Lock
Stop Light
Trailer Towing
10A STRG HTR Heated Steering Wheel System
15A FUEL PMP Cruise Control, Electronically Controlled Transmission and A/T Indicator and Engine Control
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 INV Power Outlet (120V-100W)
15A RAD NO. 1 Audio System (17 Speaker w/LEXUS Navigation System), LEXUS Navigation System (17 Speaker), Multi-Terrain Monitor (17 Speaker w/LEXUS Navigation System) and Parking Assist (Rear View Monitor and Wide-View Front & Side Monitor) (17 Speaker w/LEXUS Navigation System)
Audio System (9 Speaker w/LEXUS Navigation System), LEXUS Navigation System (9 Speaker), Multi-Terrain Monitor (9 Speaker w/LEXUS Navigation System) and Parking Assist (Rear View Monitor and Wide-View Front & Side Monitor) (9 Speaker w/LEXUS Navigation System)
Audio System (w/o LEXUS Navigation System)
15A TURN&HAZ Turn Signal and Hazard Warning Light
15A WIP RR Rear Wiper and Washer
15A WSH RR Rear Wiper and Washer
20A A/F Cruise Control, Electronically Controlled Transmission and A/T Indicator and Engine Control
20A CDS FAN Condenser Fan
20A DEICER Front Window Deicer
20A IG2 Engine Immobiliser System, Smart Access System with Push-Button Start, Starting, Steering Lock and Wireless Door Lock Control
20A S/HTR RR Seat Heater (Rear)
20A STRG LOCK Engine Immobiliser System, Smart Access System with Push-Button Start, Starting, Steering Lock and Wireless Door Lock Control
25A D/L NO. 1 Door Lock Control
Engine Immobiliser System, Smart Access System with Push-Button Start, Starting, Steering Lock and Wireless Door Lock Control
Glass Hatch Opener
25A EFI Cruise Control, Electronically Controlled Transmission and A/T Indicator and Engine Control
Dynamic Radar Cruise Control and Lane Departure Alert
25A H-LP HI Automatic Light Control and Light Auto Turn Off System
Headlight
30A ABS NO. 2 ABS, A-TRAC, Brake Assist, Crawl, Downhill Assist Control, EBD, Hill-Start Assist Control, Multi-Terrain Select and VSC
Dynamic Radar Cruise Control and Lane Departure Alert
30A AMP Audio System (17 Speaker w/LEXUS Navigation System), LEXUS Navigation System (17 Speaker), Multi-Terrain Monitor (17 Speaker w/LEXUS Navigation System) and Parking Assist (Rear View Monitor and Wide-View Front & Side Monitor) (17 Speaker w/LEXUS Navigation System)
Audio System (9 Speaker w/LEXUS Navigation System), LEXUS Navigation System (9 Speaker), Multi-Terrain Monitor (9 Speaker w/LEXUS Navigation System) and Parking Assist (Rear View Monitor and Wide-View Front & Side Monitor) (9 Speaker w/LEXUS Navigation System)
Audio System (w/o LEXUS Navigation System)
30A DEF Mirror Heater and Rear Window Defogger
30A FOLD SEAT LH Power Rear No. 2 Seat with Stowing Function
30A FOLD SEAT RH Power Rear No. 2 Seat with Stowing Function
30A H-LP CLN Headlight Cleaner
30A RAD NO. 2 Audio System (17 Speaker w/LEXUS Navigation System), LEXUS Navigation System (17 Speaker), Multi-Terrain Monitor (17 Speaker w/LEXUS Navigation System) and Parking Assist (Rear View Monitor and Wide-View Front & Side Monitor) (17 Speaker w/LEXUS Navigation System)
Audio System (9 Speaker w/LEXUS Navigation System), LEXUS Navigation System (9 Speaker), Multi-Terrain Monitor (9 Speaker w/LEXUS Navigation System) and Parking Assist (Rear View Monitor and Wide-View Front & Side Monitor) (9 Speaker w/LEXUS Navigation System)
30A ST Engine Immobiliser System, Smart Access System with Push-Button Start, Starting, Steering Lock and Wireless Door Lock Control
30A SUB BATT Trailer Towing
30A TOWING Trailer Towing
30A TOWING BRK Trailer Towing
30A TOWING TAIL Trailer Towing
30A WIP WSH RR Rear Wiper and Washer
40A A/C RR Air Conditioning
50A ABS NO. 1 ABS, A-TRAC, Brake Assist, Crawl, Downhill Assist Control, EBD, Hill-Start Assist Control, Multi-Terrain Select and VSC
Dynamic Radar Cruise Control and Lane Departure Alert
50A AIR PMP Cruise Control, Electronically Controlled Transmission and A/T Indicator and Engine Control
50A AIR SUS Electronic Modulated Air Suspension
50A HTR Air Conditioning
140A ALT Automatic Light Control and Light Auto Turn Off System
Back-Up Light
Charging
Front Fog Light
Illumination and Taillight
Trailer Towing
Fig 2: DRL Relays
G09114412Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ENGINE ROOM R/B (UNIT A) RELAY IDENTIFICATION

RELAY DESCRIPTION
DRL Relay(Canada)
DRL Relay(USA)