P0463 on a Toyota: Causes, Fixes & Repair Cost

🟢 Low severity · drivable

Safe to drive, but the fuel gauge may be wrong — track your miles or fill up often so you don't run out of gas.

What P0463 means on a Toyota

On a Toyota, P0463 means the fuel level sender inside the tank is sending voltage that's too high, so the computer thinks the tank is full. The sender is built into the fuel pump module on most Toyotas, and its resistor strip wears with age and mileage. The engine runs normally — the usual result is just a fuel gauge stuck on full.

Is P0463 common on Toyotas?

P0463 is common on higher-mileage Toyotas like the Camry, Corolla, and RAV4. The sender's resistor strip wears down over time, and on these models replacing it means accessing the fuel pump module, usually through the rear seat or under the car. A gauge stuck on full is the typical symptom, not a drivability problem.

Commonly reported on: Camry, Corolla, RAV4.

Symptoms

Check engine light on
Fuel gauge stuck on full
Fuel gauge may drop suddenly or read wrong
No change in how the car drives

Common causes

most common: Worn fuel level sender inside the fuel pump module
common: Short or damaged wiring in the fuel level circuit
common: Corroded connector on the fuel pump module
less common: Faulty instrument cluster reading

How to fix it

Fix	DIY?	Typical cost
Check the fuel level sensor wiring and connector	Yes	$0–40
Replace the fuel pump module with sender	Mechanic	$250–550
Repair a short or broken wire in the sensor circuit	Mechanic	$80–200