Most of the power circuits of the Japanese sedan's electrical equipment are protected by fuses. Powerful current consumers are connected via relays. Protective elements are installed in mounting blocks, which are located in the engine compartment and the passenger compartment.
The above diagrams are relevant for Toyota Premium (T260) cars 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 2WD & 4WD with 1NZ-FE (1.5 l), 2ZR-FE (1.8 l) and 3ZR engines -FAE (2.0 l).
In the passenger compartment
Location of components (dashboard). 1 - headlight range control unit, 2 - mounting fuse block under the dashboard, 3 - connectors (CAN), 4 - transponder amplifier, 5 - air ionizer, 6 - EPS electronic control unit, 7 - EntQr & Start system control unit, 8 - Control unit switch lock, 9 - RS electronic control unit, 10 - parking system control unit (models with a rear view camera), 11 - electric drive and steering column lock control unit, 12 - router, 13 - parking system control unit (models with rear system sensors parking).
Under-dash fuse and relay box diagram
Code
Description
A
ACC
Push button start system
Switch lock (models with Entry & Start system)
Steering column lock system
Central locking, Entry & Start system and anti-theft system
Power windows
Power mirrors
Seat Belt Warning and Tension Relief System
The warning system about the left in the ignition switch and the switched off lighting
Audio system, navigation system and parking system
Clock
Headlamps
Automatic headlamps range control
Fog lampsand rear fog lamps
Marker lamps and license plate lamps
Backlamps
Interior lamps
Air conditioning
Multiplex data bus (CAN)
Heated rear window and mirror heaters
Parking system (models with a rear view camera)
7.5
IGN
Start system (models with Entry & Start system)
Push button start system
1NZ-FE engine and CVT control system and immobilizer system
Engine management system 2ZR-FE and CVT and immobilizer system
3ZR-FAE engine and CVT management system, immobilizer system and cruise control system
Security System (SRS)
Steering column lock system
Central locking, Entry & Start system and anti-theft system
Audio, navigation and parking system (models with a rear view camera)
Multiplex data bus (CAN)
7.5
AM1
Start system (models without Entry & Start system)
7.5
METER
Charging system
1NZ-FE engine and CVT control system and immobilizer system
Engine management system 2ZR-FE and CVT and immobilizer system
3ZR-FAE engine and CVT management system, immobilizer system and cruise control system
Anti-lock braking system (ABS) (models without VSC)
Systems for improving vehicle handling (VSC and ABS)
Security System (SRS)
Electric power steering (EPS)
Central locking, Entry & Start system and anti-theft system
Seat Belt Warning and Tension Relief System
The warning system about the left in the ignition switch and the switched off lighting
Instrument cluster
Automatic headlamps range control
Marker lamps and license plate lamps
Reversing lamps
Interior lamps
Parking system (models with a rear view camera)
7.5
PANEL
Radio, navigation and parking system (models with a rear view camera)
Clock
Marker lamps and license plate lamps
Backlight
Air conditioning
Heated rear window and mirror heaters
Left key and headlights not switched off warning system
Instrument cluster
7.5
OBD
1NZ-FE engine and CVT control system and immobilizer system
Engine management system 2ZR-FE and CVT and immobilizer system
3ZR-FAE engine and CVT management system, immobilizer system and cruise control system
7.5
RR FOG
Instrument cluster
Fog lampsand rear fog lamps
7.5
ECU-IG
#1
Fan electric drive
Anti-lock braking system (ABS), control systems (VSC and ABS)
Switch lock
Electric power steering (EPS)
Steering column lock system
Central locking, Entry & Start system and anti-theft system
Power windows
Seat Belt Warning and Tension Relief System
The warning system about the left in the ignition switch and the switched off lighting
Radio, navigation and parking system (models with a rear view camera)
Headlamps
Automatic headlamps range control
Fog lamps and rear fog lamps
Marker lamps and license plate lamps
Backlamps
Interior lamps
Air conditioning
Multiplex data bus (CAN)
Parking system (models with a rear view camera)
10
ECU-IG
No.2
Charging system
Engine and CVT control system, immobilizer system and cruise control system
Seat Belt Warning and Tension Relief System
Instrument cluster
Audio system (models without navigation system)
Radio, navigation and parking system (models with a rear view camera)
Reversing lamps
Direction indicators and hazard warning lamps
Air conditioning
De-icer brushes
Heated rear window and mirror heaters
Parking system (models with a rear view camera)
10
HTR-IG
Air conditioning
Heated rear window and mirror heaters
10
MIR HTR
3ZR-FAE engine and CVT management system, immobilizer system and cruise control system
Heated rear window and mirror heaters
10
STOP
Start system (models with Entry & Start system)
Push button start system
Engine and CVT control system, immobilizer system and cruise control system
Anti-lock braking system (ABS), control systems (VSC and ABS)
Switch lock
Stop lamps
10
TAIL
Engine and CVT control system, immobilizer system and cruise control system
Manual headlamp range control
Fog lamp sand rear fog lamps
Marker lamps and license plate lamps
10
CIG
Cigarette lighter fuse
15
D S-HTR
Heated driver's seat
15
FR FOG
Instrument cluster
Fog lamps and rear fog lamps
15
P S-HTR
Heated passenger seat
15
RR
WIPER
Rear window wiper and washer
15
WASHER
Windshield and rear window wiper and washer
15
FR DOOR
Power windows
20
RL DOOR
RR DOOR
DOOR
Central locking, Entry & Start system and anti-theft system
Headlamps
Automatic headlamps range control
Fog lamps and rear fog lamps
Marker lamps and license plate lamps
Backlight
Air conditioning
25
WIPER
Engine and CVT control system, immobilizer system and cruise control system
Windshield wipers and washers
25
DEF
Heated rear window and mirror heaters
30
POWER
Power windows
30
PWR SEAT
Power driver's seat
30
In the engine compartment
Location of components. 1 - pressure modulator / ABS electronic control unit, 2 - fuse box, 3 - electronic engine control unit.
General view of the block.
Engine compartment fuse and relay box diagram
Code
Decoding
A
AM2 No. 2
- Starting system (models with Entry & Start)
- Push- button start system
- Shift lock (models with Entry & Start)
- Steering column lock
- Central locking, Entry & Start and anti-theft system
- Power windows
- Seat belt warning and tension release system
- Ignition key left warning system and lights not switched off
- headlamps
- Automatic headlamps range control
- Fog lamps and rear fog lamps
- Marker lamps and license plate lamps
- Backlight
- Interior lamps
- Air conditioning
- Multiplex data bus (CAN)
- Parking system (models with reversing camera)
7.5
IG2 # 2
1NZ-FE Engine management system;
2ZR-FE engine and variator and immobilizer system
7.5
DOME
Interior lamps
10
ECU-B
- Charging system
- Engine and CVT control system, immobilizer system and cruise control system
- Anti-lock braking system (ABS) (models without VSC)
- Vehicle control systems (VSC and ABS)
- Security system (SRS)
- Electric power steering ( EPS)
- Central locking, Entry & Start system and anti-theft system
- Power windows
- Seat belt warning system and tension release system
- Warning system for the left in the ignition switch and the lights not switched off
- Instrument cluster
- Radio, navigation system and parking sensors
- Automatic headlight range control
- Marker lamps and license plate lamps
- Reversing lamps
- Interior lamps
- Air conditioning
- Multiplex data bus (CAN)
- Heated rear window and mirror defrosters
10
ECU-B2
- Push-button start system
- Engine and CVT control system, immobilizer system and cruise control system
- Central locking, Entry & Start system and anti-theft system
- Power windows
- Air conditioning
- Heated rear window and mirrors
10
EFI # 1
3ZR-FAE engine and CVT management system, immobilizer system and cruise control system
10
EFI # 2
ETCS
Engine and CVT control system, immobilizer system and cruise control system
10
H-LP LH
HI
Headlamps
10
H-LP LH
LO
Headlamp (models without xenon )
10
H-LP RH
HI
- Instrument cluster
- Headlamps
10
H-LP RH
LO
Headlamps (models without xenon)
10
HORN
- Central locking, Entry & Start system and anti-theft system
- Horn
10
TURN-HAZ
Direction indicators and hazard warning lamps
10
H-LP LH LO
Headlamps (models with xenon)
15
H-LP RH LO
IG2
- 1NZ-FE engine and variator control system and immobilizer system
- 2ZR-FE engine and variator control system and immobilizer system
15
IGT / INJ
3ZR-FAE engine and CVT management system, immobilizer system and cruise control system
15
RAD # 1
Audio system, navigation system and parking system
15
EFI MAIN
Engine and CVT control system, immobilizer system and cruise control system
20
FR DEICER
De-icer brushes
20
STRG LOCK
Steering lock system
20
ABS No. 3
Anti-lock braking system (ABS) (models without VSC)
Vehicle control systems (VSC and ABS)
30
AM2
Launch system
30
HTR
SUB # 1
Air conditioning
30
HTR
SUB # 2
HTR
SUB # 3
P-SYSTEM
Engine and CVT control system, immobilizer system and cruise control system
30
RDI FAN
Fan electric drive
40
ABS No. 1
- Anti-lock braking system (ABS) (models without VSC)
- Vehicle control systems (VSC and ABS)
40
H-LP MAIN
- Headlamps
- Automatic headlamp range control
50
HTR
Air conditioning
50
EPS
Electric power steering (EPS)
60
ALT
Charging system
Start system (models without Entry & Start system)