FAULTBASE
Error CodesASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Volvo/XC60/Second Generation (2018-2024)/how to fix P0720 code on my Volvo XC60 Second Generation (2018-2024)

how to fix P0720 code on my Volvo XC60 Second Generation (2018-2024)

Volvo XC60 Second Generation (2018-2024)

Error Codes
Severity: highDifficulty: mediumError Code: P07201-2 hours
3 min read
542 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix P0720 vehicle speed sensor issues in Volvo XC60. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0720
Affected Component
Transmission
Estimated Time
1-2 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the engine to cool before touching any components near the engine or transmission.

Symptoms

  • •Check engine light illuminated
  • •Erratic or inaccurate speedometer reading
  • •Transmission shifting issues, such as harsh shifting or slipping
  • •Poor fuel economy
  • •Vehicle may enter limp mode

Diagnostic Steps

  1. 1Use an OBD-II scanner to confirm the P0720 code and check for any additional codes.
  2. 2Inspect the wiring and connectors of the vehicle speed sensor for any visible damage, corrosion, or loose connections.
  3. 3Measure the resistance of the vehicle speed sensor using a multimeter to ensure it is within the manufacturer's specified range.
  4. 4Check the power and ground signals to the sensor with a multimeter to verify that the sensor has proper voltage.
  5. 5Inspect the PCM for any signs of damage or corrosion that may affect signal processing.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the engine is off.
  • Disconnect the negative battery terminal to avoid electrical shorts.

2. Remove the Vehicle Speed Sensor

  • Locate the vehicle speed sensor, typically found on the transmission.
  • Disconnect the electrical connector from the sensor.
  • Use a socket set to remove the sensor from its mounting location.
    • Tools Required: Socket set, ratchet, extension.

3. Inspect and Clean

  • Visually inspect the sensor for any physical damage or wear.
  • Clean the sensor mounting area to remove any debris or old sealant.
  • If the sensor is reusable, clean the sensor tip with a soft cloth.

4. Install New Vehicle Speed Sensor

  • If necessary, install a new vehicle speed sensor.
    • Make sure to apply a small amount of thread sealant if required.
  • Reinstall the sensor into the transmission and torque it to the manufacturer’s specifications (usually around 10-15 Nm).
  • Reconnect the electrical connector securely.

5. Reconnect Battery and Clear Codes

  • Reconnect the negative battery terminal.
  • Use the OBD-II scanner to clear the P0720 code from the PCM.
  • Start the engine and allow it to idle for a few minutes.

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
  • •Torque wrench

Parts Required

  • •Vehicle speed sensor (if replacement is necessary)
  • •Thread sealant (if required)

Additional Information

Error Code
P0720
Affected Component
Transmission
Estimated Time
1-2 hours
Difficulty
medium
Severity
high
Tools Required
4 items
Parts Required
2 items

Related Faults

  1. why does my Volvo XC60 engine light come on after oil change

    Discover why the engine light comes on after an oil change in your Volvo XC60. Follow our diagnostic steps and solutions to resolve the issue effectively.

    Engine5 symptoms

  2. how to tell if my Volvo XC60 has a bad wheel bearing

    Learn how to diagnose and fix a bad wheel bearing in your Volvo XC60. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    Suspension5 symptoms

  3. how can I tell if my Volvo XC60 has a bad clutch

    Learn how to diagnose and fix a bad clutch in your Volvo XC60. Step-by-step guide with symptoms, diagnostic steps, tools, and repair instructions.

    Transmission6 symptoms

  4. my Volvo XC60 feels unstable at high speeds what could be the issue

    Discover how to diagnose and fix high-speed instability in your Volvo XC60. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    Suspension5 symptoms

  5. how to fix the fuel gauge in my Volvo XC60 Second Generation (2018-2024)

    Learn how to diagnose and fix the fuel gauge issue in your 2018-2024 Volvo XC60. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    Fuel System5 symptoms

  6. why does my Volvo XC60 feel like it’s over-steering

    Learn how to diagnose and fix oversteering issues in your Volvo XC60. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    Suspension6 symptoms

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation