how to fix the fuel gauge not working on my Toyota RAV4 XA50 (2019-2024)

Solution

1. Preparation

• Gather tools: OBD-II scanner, multimeter, socket set, screwdriver set, and safety glasses.
• Ensure the vehicle is parked on a level surface and the ignition is turned off.

2. Inspect and Replace the Fuse

• Locate the fuse box, typically found under the dashboard or in the engine compartment.
• Identify the fuse corresponding to the fuel gauge circuit using the owner’s manual.
• Using a fuse puller or pliers, remove the fuse and inspect it. Replace with a new fuse of the same amperage if blown.

3. Check and Replace Fuel Level Sender Unit

• Disconnect the vehicle battery to ensure safety.
• Remove the rear seat, if applicable, to access the fuel pump assembly.
• Unscrew the fuel pump cover and disconnect the wiring harness from the fuel sender unit.
• Carefully remove the fuel sender unit from the fuel tank.
• Inspect the float and the resistance mechanism. If damaged, replace the sender unit with a new one.
• Reinstall the fuel sender, cover, and reconnect the battery.

4. Verify Instrument Cluster Functionality

• Reconnect the battery and turn on the ignition without starting the engine.
• Check if the fuel gauge moves to the “empty” position and then back to “empty” as a self-test.
• If the gauge still does not respond, the issue may require replacement of the instrument cluster.