how to fix the fuel gauge not working in my Toyota RAV4

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the vehicle is parked on a level surface and the fuel tank is nearly empty.

2. Access Fuel Sending Unit

• Remove the rear seat and locate the access panel to the fuel tank.
• Unscrew and remove the access panel to expose the fuel pump and sending unit.

3. Remove Fuel Sending Unit

• Disconnect the electrical connector from the fuel sending unit.
• Carefully unscrew the lock ring that secures the fuel sending unit.
• Lift the fuel sending unit from the tank, taking care not to damage the O-ring.

4. Inspect and Replace Sending Unit

• Measure the resistance of the sending unit with a multimeter; it should vary with the float position.
• If the readings are outside specifications, replace the fuel sending unit with a new one.
• Clean the mounting area in the fuel tank before installing the new unit.

5. Reassemble and Test

• Reinstall the fuel sending unit and secure it with the lock ring.
• Reconnect the electrical connector and replace the access panel.
• Reinstall the rear seat and reconnect the negative battery terminal.