Table of Contents
The Toyota Alphard is a premium three-row minivan. Launched in the Japanese market alongside the second-generation Nissan Elgrand, it quickly gained widespread popularity. Built on Toyota's front-wheel-drive Previa/Estima platform, it was offered in both front-wheel-drive (FWD) and all-wheel-drive (AWD) configurations. This guide provides detailed fuse box diagrams and relay locations for the first-generation Toyota Alphard (chassis code AH10; MC platform), covering 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 production years.
Below are the locations, diagrams, and component lists for the power distribution centers. Circuit protection for the Cigarette Lighter and Fuel Pump is highlighted in bold.
In the Passenger Compartment
Two fuse boxes are located inside the cabin:
1 – Main fuse box: Driver’s side, located behind the lower dash access panel;
2 – Auxiliary fuse box: Passenger side, located behind the glove compartment.
Main Fuse Box
Accessing the main passenger compartment panel.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| AC | Auxiliary power outlets / Accessories | 15 |
| STOP | Engine Control Module (ECM), Transmission Control Module (TCM), and Engine Immobilizer system | 15 |
| Anti-lock Braking System (ABS) | ||
| Toyota Electronic Modulated Suspension (TEMS) | ||
| Shift lock control system | ||
| Power sliding door controls | ||
| Brake lights (Stop lamps) | ||
| Cruise control system | ||
| RR HTR | Dual-zone automatic climate control / Rear heater | 30 |
| GAUGE | Charging system | 10 |
| Engine management system, automatic transmission control module, and immobilizer | ||
| Anti-lock Braking System (ABS) | ||
| TEMS electronic suspension | ||
| Gearshift position indicator | ||
| Power sliding doors | ||
| Central door locking system | ||
| Power windows | ||
| Multiplex communication system (CAN/LIN) | ||
| Power sunroof | ||
| Audio system | ||
| Rear LCD entertainment screen | ||
| Toyota Multi-Vision (TMV) display system | ||
| Seat belt warning system | ||
| Reverse (Backup) lamps | ||
| Turn signals and hazard warning lights | ||
| Interior / Courtesy lamps | ||
| Auxiliary accessories | ||
| Rear window defogger and heated side mirrors | ||
| Cruise control system | ||
| Parktronic (Parking assist system) | ||
| OBD 2 | Engine Control Module (ECM), Transmission Control Module (TCM), and Immobilizer system | 7.5 |
| Anti-lock Braking System (ABS) | ||
| TEMS suspension system | ||
| SRS airbags and seat belt pretensioners | ||
| Cruise control system | ||
| WIP | Audio system | 25 |
| Rear LCD display | ||
| Multi-Vision navigation system | ||
| Windshield wiper/washer and rear wiper/washer | ||
| Dual-zone automatic climate control | ||
| Cruise control system | ||
| MIR HTR | Engine Control Module (ECM), Transmission Control Module (TCM), and Immobilizer | 10 |
| Rear window defogger and heated side mirrors | ||
| R1 | Turn signal / Flasher relay | |
| Relay modules on the rear of the block | ||
|
||
| R3 | Accessory (ACC) relay | |
| R4 | Power sunshades (AUTO CURTAIN) relay | |
| R5 | Blower / Heater relay | |
| R6 | Ignition (IG) relay | |
Auxiliary Fuse Box
To access the auxiliary fuse box: remove the lower dashboard trim below the glove compartment (1), detach the glove box (2), and access the panel (3).
| Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| A / C | Blower motor drive | 10 |
| Audio system, Multi-Vision display, and rear LCD screen | ||
| Dual-zone automatic climate control | ||
| Rear window defogger and heated side mirrors | ||
| Parking assist system | ||
| TAIL | Engine Control Module (ECM), Transmission Control Module (TCM), and Immobilizer system | 10 |
| Fog lamps | ||
| Parking / Tail lamps | ||
| Interior lamps | ||
| Cruise control system | ||
| Parking assist system | ||
| VSC | TEMS suspension system | 7.5 |
| ABS / Vehicle Stability Control (VSC models) | ||
| Multi-Vision system / Rear LCD / Audio system | ||
| Cruise control system | ||
| RR WIP | Rear window wiper and washer system | 10 |
| P / POINT | Auxiliary power socket (12 V outlet) | 15 |
| P / SEAT | Power seats | 30 |
| P / W LH | Left-hand power windows | 30 |
| IGN | Engine Control Module (ECM), Transmission Control Module (TCM), and Immobilizer system | 10 |
| SRS airbags and seat belt pretensioners | ||
| INJ | Electronic fuel injection system, ECM, TCM, and Engine Immobilizer | 15 |
| MET IGN | Charging system | 7.5 |
| Engine management system, transmission control, and immobilizer | ||
| Anti-lock Braking System (ABS) | ||
| Shift position indicator | ||
| SRS airbags and seat belt pretensioners | ||
| Key-in-ignition chime and headlight-on reminder warning system | ||
| Multi-Vision system / Rear LCD / Audio system / Instrument cluster | ||
| Seat belt warning chime | ||
| Headlamps (models equipped with HID xenon headlights) | ||
| Reverse (Backup) lamps | ||
| Cruise control system | ||
| FOG | Front fog lamps | 15 |
| DEF | Engine Control Module (ECM), Transmission Control Module (TCM), Immobilizer system • Rear window defogger and heated side mirrors | 30 |
| DOME | Central door locking | 7.5 |
| Power windows | ||
| Multiplex communication system | ||
| Interior / Dome lamps | ||
| Auxiliary accessory power socket | ||
| Welcab accessibility power seat | ||
| DOOR | Central door locking and Multiplex communication system | 30 |
| ECU-ACC | Shift lock control switch | 10 |
| Power side mirrors | ||
| Multiplex system, Multi-Vision display, rear LCD display, and audio system | ||
| Interior lighting | ||
| BACK DOOR | Power liftgate / Tailgate drive motor | 30 |
| Power liftgate auto-closer system | ||
| CIG | Toyota Alphard cigarette lighter fuse | 15 |
| AM1 | Starter / Ignition switch circuit | 7.5 |
| RR DOOR | Power sliding door drive | 30 |
| Power sliding door auto-closer system | ||
| Welcab accessibility power seat | ||
| RR FOG | Rear fog lamps | 10 |
| PANEL | Instrument cluster illumination | 10 |
| Key-in-ignition chime and headlight-on reminder warning system | ||
| Audio system / Multi-Vision display | ||
| Rear LCD screen | ||
| Front fog lamps | ||
| S / ROOF | Power sunroof | 30 |
| SEAT HTR | Seat heaters | 10 |
| ECU-IG | TEMS suspension system | 10 |
| Anti-lock Braking System (ABS) | ||
| Shift lock control system | ||
| Power sliding door drive | ||
| Power liftgate drive | ||
| Central door locking | ||
| Multiplex communication system | ||
| Power sunroof | ||
| Audio system | ||
| Rear LCD display | ||
| Multi-Vision display system | ||
| Seat belt warning system | ||
| Headlamps | ||
| Front fog lamps | ||
| Tail lamps | ||
| Interior lamps | ||
| Parking assist system | ||
In the Engine Compartment
Underhood electronic component layout.
|
|
| 1 | 1MZ-FE engine: Main fuse box |
| 2 | 2AZ-FE engine: Main fuse box |
| 3 | Auxiliary fuse box |
| 4 | 2AZ-FE engine: Auxiliary heater relay and fuse box |
| 5 | Battery fusible link block |
Three distribution centers are located under the hood: the main fuse box (1) near the center cowl/windshield, the auxiliary box (2) adjacent to the strut tower, and the fusible link block (3) mounted on the positive battery terminal.
Main Fuse Box
Main underhood fuse box layout example.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| BLC | Air conditioning (A/C) system | 10 |
| CDS FAN | Condenser cooling fan motor (2AZ-FE models) | 30 |
| RAD # 1 | Audio system / Rear LCD screen / Multi-Vision display | 15 |
| RAD # 3 | Audio system, Multi-Vision display, and rear LCD screen | 30 |
| VSC | Anti-lock Braking System (ABS) / Vehicle Stability Control (VSC models) | 40 |
| P / W RH | Right-hand power windows | 30 |
| CURTAIN | Power window sunshades / Curtains | 5 |
| CURTAIN LH & VK |
25 | |
| CURTAIN RH |
15 | |
| EFI | Electronic Fuel Injection (EFI), ECM, TCM, and Engine Immobilizer | 15 |
| FR HTR | Front climate control / Blower motor | 40 |
| HAZ-HORN | Horn | 20 |
| Turn signal and hazard warning flasher | ||
| H-LP (LH) | Headlamps (left, high beam) | 15 |
| H-LP (LL) | Headlamps (left, low beam) | 15 |
| H-LP (RH) | Headlamps (HID xenon, right high beam) | 15 |
| H-LP (RL) | Headlamps (HID xenon, right low beam) | 15 |
| PTC1 | Auxiliary PTC electric heater / Climate control system | 50 |
| PTC2 | 50 | |
| PTC3 | 50 | |
| ECU-B | Engine Control Module (ECM), Transmission Control Module (TCM), and Immobilizer system | 10 |
| Anti-lock Braking System (ABS) | ||
| TEMS suspension system | ||
| Shift position indicator | ||
| Power sliding doors and power liftgate | ||
| Power liftgate auto-closer system | ||
| Central door locking | ||
| Power windows | ||
| Key-in-ignition chime and headlight-on reminder warning system | ||
| Multiplex communication system | ||
| Power sunroof | ||
| Instrument cluster | ||
| Audio system / Rear LCD / Multi-Vision display | ||
| Reverse (Backup) lamps | ||
| Interior lighting | ||
| Air conditioning system | ||
| Cruise control system | ||
| Relay Modules | ||
| R1 | Headlamp relay | |
| R2 | Rear heater relay | |
| R3 | A/C compressor clutch relay | |
| R4 | Horn relay | |
| R5 | Fuel injection system (Toyota Alphard fuel pump relay) | |
Battery Fuse Box (Fusible Link Block)
Mounted directly on the positive battery terminal
| Diagram | ||
|---|---|---|
|
||
| No. | Description | A |
| ABS | Anti-lock Braking System (models without VSC) | 25 |
| Anti-lock Braking System (ABS) | 40 | |
| ALT | Starting and charging system | 140 |
| Parking lamps and exterior lighting | ||
| ALT-S | Alternator voltage sensing / Charging system | 5 |
| AM1 | Auxiliary power supply / Ignition circuit 1 | 10 |
| AM2 | Headlamp power / Ignition circuit 2 | 80 |
| AM2-2 | Starter / Ignition system switch circuit | 30 |
| FAN | Radiator cooling fan motor | 50 |
| R1 | Radiator cooling fan relay | |
Auxiliary Relay Block (2)
Located adjacent to the suspension strut tower.
| Diagram | |
|---|---|
|
|
| R1 R2 R3 |
Auxiliary PTC heater relays |
Excellent diagram, fuses, relays
This is helpful