Toyota Corolla 2009 Fuse Replacement

Having an electrical issue? It could be a blown fuse — an easy fix you can do yourself.

Follow the steps below to find and replace the fuse:

Step 1: Find the Fuse Box

In your Toyota Corolla 2009, the interior fuse box is typically located under the dashboard on the driver's side. Some vehicles also have an additional fuse box in the engine compartment. Check your owner's manual or the fuse box cover for the exact location.

Step 2: Identify the Corresponding Fuse

Below is the complete fuse list for your vehicle. Find the circuit that isn't working and note the fuse number and amperage.

Passenger Compartment Fuse Box

Fuse #FunctionAmperage
1IGN10
2S/ROOF20
3RR FOG7.5
4FR FOG15
5AM1 NO.27.5
6PANEL7.5
7RR WIP20
8GAUGE NO.27.5
9CIG15
10HTR10
11Spare
12RAD NO.17.5
13RR DEF30
14TAIL10
15OBD27.5
16P/POINT15
17DOOR25
18WIP25
19ECU-IG7.5
20S-HTR20
21GAUGE NO.110
22STOP15
RelaySpare
R1Spare
R2HTR
R3SEAT HTR
R4IG1
R5TAIL

Additional Fuse box Fuse Box

Fuse #FunctionAmperage
1ACC25
2RLP/W20
3RRP/W20
4FLP/W20
5FRP/W20
6ECU-B NO.17.5
7Spare
8Spare
9A/C10
10MET5
11DEF I/UP7.5
12MIR HTR10
13RAD NO.215
14DOME7.5
15ECU-B NO.27.5
16Spare

Engine Compartment Fuse Box

Fuse #FunctionAmperage
1Spare
2VSC25
2ABS25
2Spare
3Spare
4Spare
5Spare
6ALT-S7.5
7DCC30
8AM2 NO.27.5
9HAZARD10
10F-HTR25
11HORN15
12EFI20
13STR LOCK20
14AM2 NO.130
15MAIN50
16AMI NO.150
17H/CLN30
18HTR40
19CDS30
20RDI40
21VSC50
21ABS40
22IG220
23ETCS10
24AMT50
25Spare
26Spare
27Spare
RelaySpare
R1EFI MAIN
R2EDU
R3FAN NO.3
R4FAN NO.1
R5FAN NO.2
R6Spare
R7Spare
R8Spare
R9Spare

Engine Compartment Additional Fuse Box Fuse Box

Fuse #FunctionAmperage
1EFI NO.110
2EFI NO.27.5
3VSC25
3ABS25
4ALT100
5VSC50
5ABS40
6AMI NO.150
7H-LP CLN30
RelaySpare
R1EFI MAIN
R2IG2
R3AMT

Engine Compartment Additional Fuse Box Fuse Box

Fuse #FunctionAmperage
1RFGHTR30
2HTR NO.250
3HTR NO.150
4GLOW80
5ALT140
RelaySpare
R1RFG HTR
R2HTR NO.2
R3HTR NO.1

Engine Compartment Relay Box Fuse Box

Fuse #FunctionAmperage
1H-LP HI LH10
2H-LP HI RH10
3H-LP LH10
4H-LP RH10
RelaySpare
R1HORN
R2F-HTR
R3H-LP
R4DIM
R5FAN NO.2

Step 3: Check the Fuse

Use the plastic fuse puller, typically found in the fuse box, to remove the fuse. Hold it up to a light source. If the metal filament inside is broken or charred, the fuse is bad and needs to be replaced.

Comparison of a good fuse and a blown fuse — the blown fuse has a broken filament

Step 4: How to Get a Replacement

You can buy a replacement fuse at any auto parts store. Make sure you match the **amperage (A)** and **physical size** of the fuse exactly. For example, if you need a 20A fuse, get a 20A fuse.

Step 5: Replace the Fuse

Gently press the new fuse into the empty slot. You should feel a slight click when it's securely in place. Test the affected circuit to confirm it's working again.

What Now?

Fuse Was Blown — What to Buy

Ask at any auto parts store (AutoZone, O'Reilly, Advance Auto) for a blade fuse with the same amperage printed on the old one (e.g., 10A, 15A, 20A). Also match the physical size — mini (most modern cars), standard, or maxi. Replacement fuses cost under $5 and most stores sell assorted packs.

Fuse Looks Fine — Other Causes

If the fuse is intact, the problem isn't a blown fuse. Common alternatives include a bad relay (a click-sized electrical switch), a faulty wiring connection, or a failed component (motor, switch, module). At this point, a mechanic's diagnostic is the most reliable next step.

Frequently Asked Questions

What happens if I put in the wrong amperage fuse?

Higher amperage fuses won't protect the circuit and can cause wiring damage or fire. Lower amperage fuses will blow again immediately. Always match the exact amperage.

Why does my fuse keep blowing?

A repeatedly blown fuse indicates an underlying short circuit or overload. Replacing it again won't fix the root cause — consult a mechanic.

Do I need any tools?

Most cars come with a plastic fuse puller in the fuse box lid. If not, fine-tip needle-nose pliers work. A small flashlight helps.

How do I know what size fuse to buy?

Match the amperage printed on the old fuse (e.g., 10A, 15A, 20A) and the physical blade size (mini, standard, maxi). Auto parts stores carry assorted packs.