Engine Room Relay Block Assembly And Engine Room Junction Block Assembly

Engine Compartment Left (See Figure)

Fig 1: Engine Room R/B Assembly And J/B Assembly - Engine Compartment Left Fuse & Relay Locations

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

ENGINE ROOM R/B AND J/B (ENGINE COMPARTMENT LEFT) RELAY IDENTIFICATION

RELAY NUMBER	RELAY DESCRIPTION
*1	Defog Relay
*2	SUB BATT Relay
*3	TOW Tail Relay
*4	IG1 No.5 Relay
*5	EFI No.2 Relay
*6	DRL No.3 or RR A/C Relay
*7	ST Relay
*8	C/OPN Relay
*9	Security Horn Relay
*10	FR Fog Relay
*11	PTC HTR1 Relay
*12	ST CUT Relay
*13	CDS Fan Relay
*14	PTC HTR2 Relay
*15	BRK LP Relay
*16	MG CLT Relay
*17	Deicer Relay
*18	PTC HTR3 Relay
*19	DRL No.4 Relay
*20	Head Hi Relay
*21	Head LO Relay

ENGINE ROOM R/B ASSEMBLY AND J/B ASSEMBLY FUSE IDENTIFICATION LEGEND

Fuse		System
5A	ALT-S	Charging
5A	AM2	Automatic Light Control and Light Auto Turn Off System
		Door Lock Control
		Front Fog Light
		Headlight
		Interior Light
		Multiplex Communication System (CAN)
		Power Window
		Remote Control Mirror
		Sliding Roof
		Smart Key System, Theft Deterrent and Back Door Opener
		Taillight and Illumination
5A	DEF No.2	Rear Window Defogger and Mirror Heater
5A	DOME1	Clock (w/o Multi-Display)
5A	DOME1	Interior Light
5A	ECU-B1	ABS, Brake Assist, Crawl, EBD, Hill-Start Assist Control, A-TRAC and VSC
		Combination Meter
		Cool Box
		Door Lock Control
		Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
		Front Fog Light
		Garage Door Opener
		Headlight
		Multi Mode 4WD
		Multiplex Communication System (CAN)
		Parking Assist (Intuitive Parking Assist)
		Power Tilt and Power Telescopic
		Pre-Collision System
		Seat Belt Warning
		Sliding Roof
		Smart Key System, Theft Deterrent and Back Door Opener
		SRS
		Taillight and Illumination
		Tire Pressure Warning System
5A	ECU-B2	Power Seat (Driver's Seat)
5A	MET	ABS, Brake Assist, Crawl, EBD, Hill-Start Assist Control, A-TRAC and VSC
		Charging
		Combination Meter
		Door Lock Control
		Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
		Front Fog Light
		Headlight
		Multi Mode 4WD
		Parking Assist (Intuitive Parking Assist)
		Pre-Collision System
		Seat Belt Warning
		Sliding Roof
		Smart Key System, Theft Deterrent and Back Door Opener
		SRS
		Taillight and Illumination
		Tire Pressure Warning System
5A	SECURITY	Smart Key System, Theft Deterrent and Back Door Opener
7.5A	DOME2	Interior Light
7.5A	DOME2	Smart Key System, Theft Deterrent and Back Door Opener
7.5A	IMB	Smart Key System, Theft Deterrent and Back Door Opener
7.5A	RSE	Audio System, Multi-Display, Navigation System and Parking Assist (Rear View Monitor)
10A	ETCS	Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
10A	HORN	Horn
10A	HORN	Smart Key System, Theft Deterrent and Back Door Opener
10A	IGN	ABS, Brake Assist, Crawl, EBD, Hill-Start Assist Control, A-TRAC and VSC
		Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
		Multiplex Communication System (CAN)
		Seat Belt Warning
		Smart Key System, Theft Deterrent and Back Door Opener
		SRS
10A	INJ	Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
10A	INJ	Ignition
10A	RAD NO.1	Audio System, Multi-Display, Navigation System and Parking Assist (Rear View Monitor)
15A	A/F	Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
15A	FR FOG	Front Fog Light
15A	HEAD LH	Headlight
15A	HEAD LL	Headlight
15A	HEAD RH	Headlight
15A	HEAD RL	Headlight
15A	STOP	ABS, Brake Assist, Crawl, EBD, Hill-Start Assist Control, A-TRAC and VSC
		Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
		Multi Mode 4WD
		Pre-Collision System
		Shift Lock
		Smart Key System, Theft Deterrent and Back Door Opener
		Stop Light
		Trailer Towing
15A	TURN-HAZ	Turn Signal and Hazard Warning Light
20A	DEICER	Front Window Deicer
20A	EFI MAIN 2	Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
20A	RR S/HTR	Seat Heater (Rear)
20A	STR LOCK	Smart Key System, Theft Deterrent and Back Door Opener
25A	CDS FAN	Condenser Fan
25A	DOOR NO.2	Automatic Light Control and Light Auto Turn Off System
		Door Lock Control
		Front Fog Light
		Headlight
		Interior Light
		Multiplex Communication System (CAN)
		Power Window
		Remote Control Mirror
		Sliding Roof
		Taillight and Illumination
25A	EFI MAIN	Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
30A	ABS2	ABS, Brake Assist, Crawl, EBD, Hill-Start Assist Control, A-TRAC and VSC
30A	AMP	Audio System, Multi-Display, Navigation System and Parking Assist (Rear View Monitor)
30A	DEFOG	Rear Window Defogger and Mirror Heater
30A	H-LP CLN	Headlight Cleaner
30A	ST	Smart Key System, Theft Deterrent and Back Door Opener
30A	TOW BRK	Trailer Towing
30A	TOW TAIL	Trailer Towing
30A	TOWING	Trailer Towing
40A	MAIN	Automatic Light Control and Light Auto Turn Off System
40A	MAIN	Headlight
40A	MAIN	Smart Key System, Theft Deterrent and Back Door Opener
40A	SUB BATT	Trailer Towing
50A	A/PUMP NO.1	Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
50A	A/PUMP NO.2	Engine Control, Cruise Control, Electronically Controlled Transmission and A/T Indicator
50A	ABS1	ABS, Brake Assist, Crawl, EBD, Hill-Start Assist Control, A-TRAC and VSC
50A	HTR	Air Conditioning
50A	PTC-1	Air Conditioning
50A	PTC-2	Air Conditioning
50A	PTC-3	Air Conditioning
50A	RR AUTO A/C	Air Conditioning
150A	LH-J/B	Automatic Light Control and Light Auto Turn Off System
		Front Fog Light
		Smart Key System, Theft Deterrent and Back Door Opener
		Taillight and Illumination
		Trailer Towing
180A	ALT	Charging