Engine-Codes.com
Engine-Codes – Generic – C1720

C1720 Code - Function Code Data From Front Left Transmitter Is Malfunctioning

Quick Answer

The C1720 diagnostic trouble code indicates that there is a malfunction in the function code data being transmitted from the front left transmitter in the vehicle's system. Common causes include Faulty front left transmitter, Wiring or connection issues, Corrosion or damage to the transmitter. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
C1720 indicates Function Code Data From Front Left Transmitter Is Malfunctioning.
Common causes
Common causes include Faulty front left transmitter, Wiring or connection issues, Corrosion or damage to the transmitter.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code C1720 Description

The C1720 diagnostic trouble code indicates that there is a malfunction in the function code data being transmitted from the front left transmitter in the vehicle's system. In modern vehicles, various sensors and transmitters continuously collect data and communicate with the vehicle's electronic control unit (ECU) to ensure optimal performance and safety. In this case, the issue lies specifically with the front left transmitter, which may be responsible for monitoring aspects such as wheel speed, tire pressure, or other related functions.

OBDII Code C1720 - Function Code Data From Front Left Transmitter Is Malfunctioning
C1720 Code - Function Code Data From Front Left Transmitter Is Malfunctioning

Common Causes of C1720

  1. Faulty front left transmitter
  2. Wiring or connection issues
  3. Corrosion or damage to the transmitter
  4. Electronic control unit (ECU) malfunction
  5. Software glitch in the vehicle's system

Symptoms of C1720

  1. ABS warning light illuminated on the dashboard
  2. Traction control system engaging unexpectedly
  3. Inaccurate tire pressure readings
  4. Uneven braking or steering response

How to Fix C1720

  1. Begin by conducting a thorough visual inspection of the front left transmitter and its connections to check for any obvious damage or loose connections.
  2. Use a diagnostic scan tool to retrieve the specific error codes and data related to the malfunctioning transmitter.
  3. Test the transmitter's functionality by comparing its data to that of the other transmitters in the vehicle.
  4. Replace the front left transmitter if it is determined to be faulty, ensuring that the new part is compatible with the vehicle's system.
  5. Clear the error codes from the ECU and perform a test drive to verify that the issue has been resolved.

Cost to Fix C1720

The typical repair costs for addressing a malfunctioning front left transmitter can range from $200 to $500, including parts and labor. However, it's important to note that the final cost may vary depending on the specific make and model of the vehicle, the location of the repair shop, and any additional repairs or services that may be required. Diagnostic time and labor rates can also impact the overall cost, with rates typically ranging between $80 and $150 per hour. It's recommended to obtain a detailed estimate from a reputable auto repair shop before proceeding with the repairs.

Need more information about the C1720 code?

Need more information on how to fix the C1720 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1720 code diagnosed by a professional: Find a repair shop in your area

Code C1720 Information for Specific Makes

  • C1720 Infiniti — Function Code Data From Front Left Transmitter Is Malfunctioning
  • C1720 Nissan — Function Code Data From Front Left Transmitter Is Malfunctioning
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1720 Code

1. What are the common symptoms of OBDII code C1720?

- Common symptoms include issues with the tire pressure monitoring system (TPMS), inaccurate tire pressure readings, and warning lights on the dashboard.

2. What could cause the OBDII code C1720 to trigger?

- This code is usually triggered by a malfunction in the front left tire pressure sensor or transmitter, such as sensor damage, low battery power, or communication errors.

3. How can I diagnose the cause of OBDII code C1720?

- You can diagnose the issue by checking the tire pressure in the front left tire manually, inspecting the sensor for physical damage, and using a TPMS diagnostic tool to read sensor data.

4. Can I reset the OBDII code C1720 without fixing the underlying issue?

- Resetting the code without addressing the underlying problem will likely result in the code reappearing once the system detects the malfunction again.

5. What are the repair options for OBDII code C1720?

- Repair options may include replacing the front left tire pressure sensor/transmitter, recalibrating the TPMS system, or addressing any wiring or communication issues.

6. Is it safe to drive with OBDII code C1720 present?

- It is generally safe to drive with this code, but you should address the issue promptly to ensure the accurate functioning of the TPMS system.

7. How can I prevent OBDII code C1720 from reoccurring?

- Regularly checking tire pressure, maintaining sensor health, and following proper TPMS maintenance practices can help prevent this code from reoccurring.

8. Can extreme weather conditions affect OBDII code C1720?

- Extreme temperatures or conditions like snow and ice can impact tire pressure readings and sensor performance, potentially leading to the triggering of this code.

9. Will fixing OBDII code C1720 improve fuel efficiency?

- While fixing this code may not directly impact fuel efficiency, maintaining accurate tire pressure through a functioning TPMS system can contribute to better fuel economy.

10. How long does it typically take to repair OBDII code C1720?

- The repair time can vary depending on the exact cause of the malfunction, but simple fixes like sensor replacement can usually be completed within an hour or two at a repair shop.

Discuss the causes and fixes for C1720 OBDII Code

Submit a New Comment

Code C1720 comments

No comments found for this page.