Fuses and relays Toyota Ipsum (ACM20; 2001–2009)

Table of Contents

Most electrical circuits in this minivan are protected by fuses. High-load components such as headlights, cooling fan motors, and the fuel pump are connected via relays. Protective fuses and relays are housed in fuse and junction boxes located in the engine compartment and passenger compartment.

Fuse diagrams apply to Toyota Ipsum (chassis codes ACM21, ACM26; MC platform) models produced from 2001 to 2009 equipped with 1AZ-FE and 2AZ-FE gasoline engines.

Passenger Compartment


Component Location. 1 - Auxiliary power relay, 2 - Rearview camera ECU, 3 - Fuel pump relay, 4 - Power inverter relay, 5 - Engine immobilizer ECU (models from 10/2003), 6 - Junction Connector (J/C No. 12), 7 - Automatic headlight leveling ECU (models from 08/2005), 8 - Main junction block No. 2, 9 - Main junction block No. 1, 10 - Parking assist ECU, 11 - Intermittent wiper relay (models from 10/2003), 12 - Rear heater HI-speed relay, 13 - Rear heater relay, 14 - TEMS ECU, 15 - Turn signal flasher relay, 16 - Front fog lamp relay, 17 - ABS ECU, 18 - VSC warning buzzer, 19 - SRS airbag ECU, 20 - Engine ECU (ECM), 21 - Under-dash main fuse box, 22 - Auxiliary fuse box

Main Fuse Box


General view.

Diagram
Fuse Protected Circuit Rating (A)
ECU-ACC
  • Power distribution
  • Power door locks
  • Power windows (models from 10/2003)
  • Audio system (AM/FM/MD/CD changer)
  • Audio system, Multivision system (models up to 10/2003)
  • Audio system, Multivision system, and rear LCD monitor (models up to 10/2003)
  • Audio system (AVX-MD Live Sound) (models from 10/2003)
  • Audio system (AVX-MD Live Sound, DVD, subwoofer), and rear LCD monitor (models from 10/2003)
  • Headlights, headlight leveling system, and automatic light control system
  • Front fog lamps
  • Tail lamps / Interior illumination
  • Auxiliary power socket
  • Rearview camera system
 7.5
ECU-IG
  • Power distribution
  • Engine control system (2AZ-FE engine), automatic transmission control system, and engine immobilizer (models up to 10/2003)
  • Electric cooling fan drive
  • Anti-lock braking system (2WD models)
  • Anti-lock braking system (4WD models) and 4WD engagement system
  • Toyota Electronic Modulated Suspension (TEMS)
  • Power mirrors
  • Audio system, Multivision system (models up to 10/2003)
  • Audio system, Multivision system, and rear LCD monitor (models up to 10/2003)
  • Headlights (discharge/HID models), automatic headlight leveling system, and automatic light control system (models from 08/2005)
  • Auxiliary power socket
  • Rearview camera system
 7.5
PANEL
  • Power distribution
  • Engine control system (2AZ-FE engine), automatic transmission control system, and engine immobilizer (models up to 10/2003)
  • Engine control system (2AZ-FE engine), automatic transmission control system, and cruise control system (models from 10/2003)
  • Key-in-ignition and lights-on warning chime system
  • Instrument cluster
  • Audio system, Multivision system, and rear LCD monitor
  • Clock
  • Front fog lamps
  • Instrument panel switch backlighting
  • Front climate control (automatic A/C), rear heater, and auxiliary heater
 7.5
GAUGE
  • Power distribution
  • Charging system
  • Engine control system (2AZ-FE engine), automatic transmission control system, and engine immobilizer (models up to 10/2003)
  • Engine control system (2AZ-FE engine), automatic transmission control system, and cruise control system (models from 10/2003)
  • Anti-lock braking system (2WD and 4WD models) and 4WD engagement system
  • Power door locks
  • Power windows
  • Key-in-ignition and lights-on warning chime system
  • Seat belt warning system
  • Power sunroof
  • Instrument cluster
  • Audio system, Multivision system, and rear LCD monitor
  • Clock
  • Headlights, headlight leveling system, and automatic light control system
  • Front fog lamps
  • Tail lamps
  • Reverse lamps
  • Turn signals and hazard warning lights
  • Interior lamps
  • Front climate control (automatic A/C), rear heater, and auxiliary heater
  • Heated rear window, side mirror defoggers, and windshield wiper de-icer
  • Parking assist system
  • Rearview camera system
 7.5
TEMS
  • Power distribution
  • Toyota Electronic Modulated Suspension (TEMS)
 10
IGN
  • Power distribution
  • Engine control system (2AZ-FE engine), automatic transmission control system, and engine immobilizer (models up to 10/2003)
  • Engine control system (2AZ-FE engine), automatic transmission control system, and cruise control system (models from 10/2003)
  • Electric cooling fan drive
  • Anti-lock braking system (2WD models)
  • Anti-lock braking system (4WD models without VSC) and 4WD engagement system (models up to 10/2003)
  • Anti-lock braking system (4WD models with VSC) and 4WD engagement system
  • SRS airbags and seat belt pretensioners
  • Engine immobilizer system (models from 10/2003)
  • Front climate control (automatic A/C), rear heater, and auxiliary heater
 10
AIRBAG-IG
  • Power distribution
  • SRS airbags and seat belt pretensioners
 10
TAIL
  • Power distribution
  • Tail lamps
 10
HEATER
  • Power distribution
  • Charging system
  • Engine control system (2AZ-FE engine), automatic transmission control system, and engine immobilizer (models up to 10/2003)
  • Engine control system (2AZ-FE engine), automatic transmission control system, and cruise control system (models from 10/2003)
  • Anti-lock braking system (2WD and 4WD models) and 4WD engagement system
  • Key-in-ignition and lights-on warning chime system
  • Seat belt warning system
  • Instrument cluster
  • Front climate control (automatic A/C), rear heater, and auxiliary heater
  • Heated rear window, side mirror defoggers, and windshield wiper de-icer
  • Parking assist system (models from 10/2003)
 10
MIRROR HEATER Models from 10/2003
  • Power distribution
  • Heated rear window, mirror defoggers, and windshield wiper de-icer
 10
REAR HEATER
  • Power distribution
  • Front climate control (automatic A/C), rear heater, and auxiliary heater
 10
PWR
OUTLET
  • Power distribution
  • Auxiliary power socket
 15
CIG Cigarette lighter fuse 15
STOP
  • Power distribution
  • Engine control system (2AZ-FE engine), automatic transmission control system, and engine immobilizer (models up to 01/2003)
  • Engine control system (2AZ-FE engine), automatic transmission control system, and cruise control system (models from 10/2003)
  • Anti-lock braking system (2WD and 4WD models) and 4WD engagement system
  • Toyota Electronic Modulated Suspension (TEMS)
  • Stop lamps (brake lights)
 15
FR FOG
  • Power distribution
  • Front fog lamps
 15
REAR
DEFOG
  • Power distribution
  • Heated rear window, side mirror defoggers, and windshield wiper de-icer
 20
AM1 Starting system 25
DOOR Power door locks 25
WIPER
  • Windshield wiper and washer
  • Intermittent windshield wiper and washer
  • Rear window wiper and washer
 25
POWER
  • Power windows
  • Power sunroof
 30
POWER
SEAT
  • Power distribution
  • Power driver/passenger seat
  • Auxiliary power socket
 30
FRONT POWER WINDOW
  • Power windows
  • Power sunroof
 30

Auxiliary Fuse Box

Models from 10/2003 onward.

Diagram
MET IGN
  • Power distribution
  • Engine control system (2AZ-FE engine), automatic transmission control system, and cruise control system (models from 10/2003)
  • Anti-lock braking system (2WD models)
  • Anti-lock braking system (4WD models without VSC) and 4WD engagement system (models from 10/2003)
  • Anti-lock braking system (4WD models with VSC) and 4WD engagement system
  • SRS airbags and seat belt pretensioners
  • Headlights (discharge/HID models), automatic headlight leveling system, and automatic light control system (models from 08/2005)
  • Rearview camera system
 7.5

Engine Compartment


Component Location. 

  1. Relay box No. 1,
  2. Relay box No. 2,
  3. Main fuse box,
  4. ABS hydraulic unit / pressure modulator assembly,
  5. ABS fuse box.

Main Fuse Box


General view.

Diagram
Fuse Protected Circuit Rating (A)
ECU-B
  • Power distribution
  • Charging system
  • Engine control system (2AZ-FE engine), automatic transmission control system, and engine immobilizer
  • Anti-lock braking system (2WD and 4WD models) and 4WD engagement system
  • Toyota Electronic Modulated Suspension (TEMS)
  • Power door locks
  • Power windows (models from 10/2003)
  • Key-in-ignition and lights-on warning chime system
  • Seat belt warning system
  • Engine immobilizer system (models from 10/2003)
  • Instrument cluster
  • Audio system (Multivision system) (models up to 10/2003)
  • Audio system (Multivision system) and rear LCD monitor (models up to 10/2003)
  • Clock
  • Headlights (halogen models up to 10/2003; discharge/HID models), headlight leveling system, and automatic light control system
  • Front fog lamps
  • Tail lamps
  • Interior lamps
  • Front climate control (automatic A/C), rear heater, and auxiliary heater
  • Heated rear window, side mirror defoggers, and windshield wiper de-icer
  • Parking assist system
  • Rearview camera system
 7.5
FR FOG
  • Power distribution
  • Front fog lamps
 7.5
OBD
  • Power distribution
  • Engine control system (2AZ-FE engine), automatic transmission control system, and engine immobilizer (models up to 10/2003)
  • Engine control system (2AZ-FE engine), automatic transmission control system, and cruise control system (models from 10/2003)
  • Anti-lock braking system (2WD models)
  • Anti-lock braking system (4WD models) and 4WD engagement system
  • SRS airbags and seat belt pretensioners
  • Toyota Electronic Modulated Suspension (TEMS)
 7.5
DOME
  • Power distribution
  • Interior dome lamps
 10
HAZARD
  • Power distribution
  • Turn signals and hazard warning lights
 10
ETCS (from 10/2003)
  • Power distribution
  • Engine control system (2AZ-FE engine), electronic throttle control system (ETCS), and cruise control system (models from 10/2003)
 10
HORN
  • Power distribution
  • Horn
 10
AC INV
  • Power distribution
  • AC power inverter outlet
 15
EFI
  • Power distribution
  • Engine control system (2AZ-FE engine), electronic fuel injection (EFI), automatic transmission control system, and engine immobilizer (models up to 10/2003)
  • Engine control system (2AZ-FE engine), automatic transmission control system, and cruise control system (models from 10/2003)
  • Electric cooling fan drive
  • Engine immobilizer system (models from 10/2003)
  • Front climate control (automatic A/C), rear heater, and auxiliary heater
 15
FR DEF (from 10/2003)
  • Power distribution
  • Windshield wiper de-icer
 15
HEAD LH LWR
  • Power distribution
  • Headlights (low/high beam), headlight leveling system, and automatic light control system
 15
HEAD LH UPR
HEAD RH LWR
HEAD RH UPR
IG2
  • Power distribution
  • Engine control system (2AZ-FE engine), automatic transmission control system, and engine immobilizer (models up to 10/2003)
  • Engine control system (2AZ-FE engine), automatic transmission control system, and cruise control system (models from 10/2003)
 15
RAD # 1
  • Power distribution
  • Audio system (AM/FM/MD/CD changer)
  • Audio system, Multivision system (models up to 10/2003)
  • Audio system, Multivision system, and rear LCD monitor (models up to 10/2003)
  • Audio system (AVX-MD Live Sound) (models from 10/2003)
  • Audio system (AVX-MD Live Sound, DVD, subwoofer), and rear LCD monitor (models from 10/2003)
  • Rearview camera system
 15
ABS No. 2 Models from 10/2003 without VSC
  • Power distribution
  • Anti-lock braking system (2WD models)
  • Anti-lock braking system (4WD models without VSC) and 4WD engagement system (models from 10/2003)
 30
AM2
  • Power distribution
  • Starting system
 30
CDS
  • Power distribution
  • A/C condenser cooling fan motor
 30
DCC Direct current cut-off (battery isolation circuit) / Power distribution 30
RDI
  • Power distribution
  • Radiator cooling fan motor
 30
RR CLR
  • Power distribution
  • Rear air conditioner / rear cooler
 30
ABS No. 1
  • Power distribution
  • Anti-lock braking system ABS (2WD models)
  • Anti-lock braking system ABS (4WD models) and 4WD engagement system
 40
ABS No. 2 Models up to 10/2003 or models with VSC
  • Power distribution
  • Anti-lock braking system ABS (2WD models)
  • Anti-lock braking system ABS (4WD models without VSC) and 4WD engagement system (models up to 10/2003)
  • Anti-lock braking system ABS (4WD models with VSC) and 4WD engagement system
 40
HTR
  • Power distribution
  • Front climate control (automatic A/C blower motor), rear heater, and auxiliary heater
 50
MAIN
  • Power distribution
  • Main headlight circuit, headlight leveling system, and automatic light control system
 50
ALT
  • Power distribution
  • Charging system (alternator)
  • Starting system
  • Tail lamps
  • Switch illumination
  • Heated rear window, mirror defoggers, and windshield wiper de-icer
 140

Relay Box No. 1

Diagram.

Fuse / Relay Protected Circuit Rating (A)
HTR SUB1
  • Power distribution
  • PTC auxiliary heater elements and rear climate control heater
 50
HTR SUB2
HTR SUB3

Relay Box No. 2

Diagram.

ST
  • Power distribution
  • Starting system
  • Engine control system (2AZ-FE engine), automatic transmission control system, and engine immobilizer (models up to 10/2003)
  • Engine control system (2AZ-FE engine), automatic transmission control system, and cruise control system (models from 10/2003)
 7.5

ABS Relay/Fuse Box

Diagram.

ABS 3
  • Power distribution
  • Anti-lock braking system (4WD models) and 4WD engagement system
 10
ABS 4
  • Power distribution
  • Anti-lock braking system (4WD models without VSC) and 4WD engagement system (models up to 10/2003)

Vehicle Body Electronics


Component Location. 

  1. Navigation system ECU,
  2. Keyless entry / wireless remote control receiver,
  3. Rear air conditioner relay,
  4. Power inverter,
  5. TV tuner unit.
See also:
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