Toyota Corolla E150 was produced in 2007, 2008, 2009, 2010, 2011, 2012 and 2013 and was supplied worldwide. During this time, the model was restyled. In some regions, it is known as Corolla Axio and Corolla Altis. In this material, we will show the location of electronic control units, describe in detail the fuses and relays of the Toyota Corolla in the 150 body with the locations of the units, their diagrams and photo examples of execution. We will highlight the cigarette lighter fuse.

The number of elements in the blocks and their purpose may differ from the one presented. Check the description with your diagrams on the protective cover of the block.
Blocks in the cabin
Layout diagram
General layout of the units in the Corolla 150 cabin

- Air conditioning control unit
- Fuse Box / Body Electrical Control Unit
- LHD: Headlight range control unit
- Steering wheel lock control unit
- Power Steering Control Unit
- Key transponder amplifier
- Relay Block #1
- Relay Block #2
- Distribution block
- Distribution block
- Windscreen wiper relay
- LHD : Gearbox control unit (Multi-mode)
- Engine and gearbox control unit
- Start-stop system control unit
- Multimedia Interface Control Unit
- LHD: Gear selector lock control unit
- Airbag control unit
- RHD: Turn signal relay
Fuse box
It is located in the passenger compartment under the panel on the left side.
Right hand drive


To access, press the lid latch.
Example of assignment from the lid


| 1 | 7.5A AM1 – Starting system, distributed fuel injection system/sequential distributed fuel injection system, fuses: “CIG”, “ACC” |
| 2 | 15A FR FOG – Front fog light |
| 3 | – |
| 4 | 25A ACC-B – Fuses: “CIG”, “ACC” |
| 5 | 25A DOOR – Central locking |
| 6 | – |
| 7 | 10A STOP – Brake light bulbs, additional brake light, ABS, VSC, body electrical control unit, multipoint fuel injection system/sequential multipoint fuel injection system, transmission control unit |
| 8 | 7.5A OBD – Diagnostic connector |
| 9 | 10A ECU-IG NO.2 – Reversing lights, charging system, auto-dimming interior mirror, monitor, sunroof, rear window defogger, air conditioning, turn signals, hazard warning lights, front passenger seat belt indicator, start-stop system, parking assist system |
| 10 | 10A ECU-IG NO.1 – without start-stop system: Automatic headlight range control, body electrical control unit, electric power steering, cooling fan(s), gear selector lock, rain sensor, ABS, VSC, audio system, navigation, multipoint fuel injection system/sequential multipoint fuel injection system, headlight washers, intelligent entry and start system |
| 11 | 15A WASHER – Glass washer |
| 12 | – |
| 13 | 25A WIPER – Windscreen wiper, rain sensor |
| 14 | 10A HTR-IG – Air conditioning, heated rear window, auxiliary heater |
| 15 | 15A SEAT HTR – Heated Seats |
| 16 | 10A TAIL – Side light, number plate light, rear fog light, front fog light, headlight range control, multipoint fuel injection system/sequential multipoint fuel injection system, instrument panel lighting |
| 17 | 7.5A PANEL – Light switch, instrument panel light, glove box light, steering wheel switches, body electrical control unit |
| 18 | 10A ECU-IG NO.1 – with start-stop system: Automatic headlight range control, body electrical equipment control unit, electric power steering, cooling fan, gear selector lock, rain sensor, ABS, VSC, audio system, navigation, distributed fuel injection system / sequential distributed fuel injection system, headlight washers, intelligent entry and start system, start-stop system |
| 19 | 20A FR DOOR – Glass lifters |
| 20 | 20A RL DOOR – Glass lifters |
| 21 | 20A RR DOOR – Glass lifters |
| 22 | 20A SUNROOF – Hatch |
| 23 | 15A CIG – Cigarette Lighter |
| 24 | 7.5A ACC – Power mirrors, audio system, navigation, gear selector lock, body electrical control unit, intelligent entry and start system, start-stop system |
| 25 | |
| 26 | 10A MIR HTR – Heated Mirrors, Multiport Fuel Injection System/Sequential Multiport Fuel Injection System |
| 27 | |
| 28 | |
| 29 | 7.5A RR FOG – Rear Fog Light |
| 30 | 7.5A IGN – Steering wheel lock, airbags, transmission control unit, multiport fuel injection system/sequential multiport fuel injection system, intelligent entry and start system, start-stop system |
| 31 | 7.5A METER – Instrument cluster, start-stop system |
The cigarette lighter is controlled by fuse number 23 for 15A, marked as CIG.
Upper section of the block
To access it, you need to remove the panel protection for left-hand drive models.

Or a glove compartment for right-hand drive models.


| F1 | 30A Body Equipment ECU Unit / Window Electrics |
| F2 | 30/40A Power supply for the turn signal relay/Rear window heating, fuse: “MIR HTR” |
| F3 | 30A Seat heating |
| R1 | Relay – turn signal interrupter |
| R2 | Heater relay |
| R3 | Relay “IG1” – ignition system |
Relay Block #1


| R1 | Starter (ST) |
| R2 | Rear fog light (RR FOG) |
| R3 | Auxiliary relay (ACC) |
| R4 | Auxiliary relay (ACC CUT) |
Relay Block #2

| R1 | Front fog light (FR FOG) |
| R2 | Starter (ST CUT) |
| R3 | Panel |
| R4 | Reserve |
Blocks under the hood
Layout diagram
General layout of the blocks under the hood

- Engine control unit
- Main fuse and relay box
- Glow Plug Relay
- Cooling system fan control unit
- LHD: Headlight Washer Relay
- Injector Control Unit (EDU)
- Relay block
- Petrol: Brake Control Unit
- Diesel: Brake control unit
Main fuse and relay box
It is installed on the left side under the hood.
Option 1
Scheme

| F1 | 30A H-LP CLN – Headlight Washer |
| F2 | 45A RDI FAN – Cooling system fan |
| F3 | 30A ABS NO.3 – ABS and VSC |
| F4 | 50A ABS NO.1 – ABS and VSC |
| F5 | 50A HTR – Air Conditioner |
| F6 | 10A ECU-B2 – Robotic gearbox, air conditioning, Smart Entry system |
| F7 | 10A ECU-B – Instrumentation, Electrical Control Unit, VSC, Central Locking, Power Window Drive |
| F8 | 15A RAD NO.1 – Audio system |
| F9 | 10A DOME – Interior lighting, trunk lighting, Smart Entry system |
| F10 | 20A STRG LOCK – Steering lock system |
| F11 | 30A AM2 – Engine Starting System, Smart Entry System, Injection System |
| F12 | 10A ETCS – Electronic Throttle Control System |
| F13 | 10A TURN-HAZ – Direction indicators and hazard warning lights |
| F14 | 7.5A ALT-S – Battery charging system |
| F15 | 7.5A AM2 NO.2 – Electrical equipment control unit |
| F16 | 50A H-LP MAIN – Headlights |
| F17 | 50A P/I – Fuel injection system |
| F18 | 80A GLOW – Engine pre-heating system (for diesel engines) |
| F19 | 60A EPS – Electric Power Steering |
| F20 | 120A ALT – Battery charging system |
| F21 | 15A IG2 – Fuel injection system, Smart Entry system |
| F22 | 10A HORN – Horn |
| F23 | 20A EFI MAIN – Fuel injection system |
| F24 | Reserve |
| F25 | Reserve |
| F26 | Reserve |
| F27 | 50A AMT – Robotic gearbox |
| F28 | 30A HTR SUB NO.3 – Air conditioner |
| F29 | 30A HTR SUB NO.2 – Air conditioner |
| F30 | 30A HTR SUB NO.1 – Air conditioner |
| F31 | 10A H-LP LH LO – Right headlight (low beam) |
| F32 | 10A H-LP RH LO – Left headlight (low beam) |
| F33 | 10A H-LP LH HI – Right headlight (high beam) |
| F34 | 10A H-LP RH HI – Left headlight (high beam) |
| F35 | 10A EFI NO.1 – Injection system |
| F36 | 10A EFI NO.2 – Injection system |
| F37 | 7.5A IG2 NO.2 – Starting system, Smart Entry system |
| 38 | FR DEICER – Cooling system fan relay |
| 39 | IGT/INJ – Headlight Switch Relay |
| 40 | AMT – Relay for robotic gearbox |
| 41 | H-LP – Headlight Relay |
Option 2
Example of a diagram from the block cover


| 1 | 30A CDS FAN – Electric Cooling Fan(s) |
| 2 | 40A RDI FAN – Electric Cooling Fan(s) |
| 3 | 30A ABS NO. 3 – Anti-lock braking system, vehicle stability control system |
| 4 | 50A ABS NO. 1 – Anti-lock braking system, vehicle stability control system |
| 5 | 50A HTR – Air Conditioning System |
| 6 | 120A ALT – CHARGING SYSTEM, RDI FAN, CDS FAN, ABS NO. 1, ABS NO. 3, HTR, HTR SUB NO. 1, HTR SUB NO. 3, ACC, CIG, METER, IGN, ECU-IG NO. 2, HTR-IG, WIPER, WASHER, ECU-IG NO. 1, AM1, DOOR, STOP, FRONT DOOR, POWER, REAR DOOR, REAR DOOR, OBD, ACC-B, FR FOG, DEF, MIR HTR, REAR, PANEL |
| 7 | 60A EPS – Electric Power Steering |
| 8 | 80A GLOW – Candles |
| 9 | 50A P/I – EFI MAIN, HORN, IG2 |
| 10 | 50A H-LP MAIN – Headlights |
| 11 | 10A EFI NO. 2 – Emission Control System |
| 12 | 10A EFI NO. 1 – Multiport fuel injection system / sequential multiport fuel injection system |
| 13 | 10A H-LP RH HI – Right headlight (high beam) |
| 14 | 10A H-LP LH HI – Left headlight (high beam) |
| 15 | 10A H-LP RH LO – Right headlight (low beam) |
| 16 | 10A H-LP LH LO – Left headlight (low beam) |
| 17 | 10A ETCS – Electronic Throttle Control System |
| 18 | 10A TURN-HAZ – Direction indicators, emergency flashers |
| 19 | 7.5A ALT-S – Charging system |
| 20 | 7.5A AM2 NO. 2 – Distributed fuel injection system / sequential distributed fuel injection system, starting system |
| 21 | 30A AM2 – Starting System |
| 22 | 20A STRG LOCK – Steering lock system |
| 23 | 7.5A IG2 NO.2 – Starting system |
| 24 | 10A ECU-B2 – Air Conditioning System |
| 25 | 10A ECU-B – Main Body ECU, Sensor and Meters |
| 26 | 15A RAD NO. 1 – Audio system |
| 27 | 10A DOME – Trunk Light, Smart Key System |
| 28 | 30A AMP – Audio system |
| 29 | 10A MAYDAY |
| 30 | 10A SPARE – Spare fuse |
| 31 | 30A SPARE – Spare fuse |
| 32 | 20A SPARE – Spare fuse |
| 33 | 20A EFI MAIN – Multiport fuel injection system / sequential multiport fuel injection system, EFI NO. 1, EFI NO. 2 |
| 34 | 10A HORN -Signal |
| 35 | 15A IG2 – Multi-port fuel injection system / sequential multi-port fuel injection system, starting system, IGN, METER |
| 36 | 7.5A ST – Starter |
| 37 | 30A HTR SUB NO. 1 – PTC Heater |
| 38 | 30A HTR SUB NO. 3 – PTC Heater |
| 39 | 15A PWR OUTLET/ INVERTER or PWR OUTLET – Socket, cigarette lighter |
Additional relay block
Scheme

| R2 | Auxiliary heater (HTR SUB NO.1) |
| R3 | Auxiliary heater (HTR SUB NO.3) |
| R4 | Auxiliary heater (HTR SUB NO.2) |