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how to fix the fuel gauge not working in my Toyota Corolla E170 (2013-2019)? - Toyota Corolla
Home/Cars/Toyota/Corolla/E170 (2013-2019)/how to fix the fuel gauge not working in my Toyota Corolla E170 (2013-2019)?

how to fix the fuel gauge not working in my Toyota Corolla E170 (2013-2019)?

Toyota Corolla E170 (2013-2019)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
517 words

Problem Statement

Learn how to diagnose and fix the fuel gauge issue in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Fuel System
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Relieve fuel system pressure before accessing the fuel pump assembly to prevent fuel spray.

Symptoms

  • •Fuel gauge reading empty despite having fuel in the tank
  • •Fluctuating gauge readings while driving
  • •Check engine light illuminated
  • •Fuel level warning light not illuminating
  • •Inconsistent fuel consumption readings

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •OBD-II scanner
  • •Multimeter
  • •Socket set
  • •Screwdrivers

Parts Required

  • •Fuel sending unit (if faulty)
  • •Fuel pump assembly gasket (if removed)

Additional Information

Affected Component
Fuel System
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
4 items
Parts Required
2 items

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Solution
1. Preparation
  • Gather tools: OBD-II scanner, multimeter, socket set, and screwdrivers.
  • Disconnect the negative terminal of the battery to ensure safety.
  • Relieve fuel system pressure by removing the fuel pump relay or fuse and starting the engine until it stalls.
2. Access the Fuel Sending Unit
  • Remove the rear seat or access panel to reach the fuel tank's sending unit.
  • Disconnect the electrical connector from the fuel sending unit.
  • Unscrew and remove the fuel pump assembly from the fuel tank.
3. Inspect and Test the Sending Unit
  • Use the multimeter to check the resistance of the sending unit while moving the float arm. It should show a smooth change in resistance (typically between 0-90 ohms).
  • If the resistance is not within specifications, replace the fuel sending unit.
4. Reinstall Components
  • If the sending unit is replaced, install the new unit into the fuel tank, ensuring it is seated properly.
  • Reconnect the electrical connector to the fuel sending unit.
  • Reinstall the fuel pump assembly and secure it with the screws.
  • Replace the rear seat or access panel.
5. Reconnect Battery and Test
  • Reconnect the negative terminal of the battery.
  • Start the vehicle and monitor the fuel gauge for proper operation.