AutoCodes – Infiniti – C1721 Infiniti

C1721 Infiniti Code - Function Code Data From Front Right Transmitter Is Malfunctioning

Quick Answer

A sensor-transmitter integrated with a valve is installed in each wheel. Common causes include Faulty Front Right Transmitter sensor, Front Right Transmitter sensor has not bee programmed, Faulty Tire Pressure Receiver. 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: C1721 Infiniti indicates Function Code Data From Front Right Transmitter Is Malfunctioning.
Common causes: Common causes include Faulty Front Right Transmitter sensor, Front Right Transmitter sensor has not bee programmed, Faulty Tire Pressure Receiver.
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.

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Code Popularity 1,159

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 18, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1721 Infiniti Description

A sensor-transmitter integrated with a valve is installed in each wheel. It transmits a detected air pressure signal in the form of a radio wave when the vehicle is moving. The radio signal is received by the tire pressure receiver and send to the Body Control Module (BCM). The BCM monitors the sensor-transmitter. The BCM sets the OBDII code when the sensor-transmitter signal is not to factory specifications.

OBDII Code C1721 Infiniti - Function Code Data From Front Right Transmitter Is Malfunctioning - AutoCodes.com — C1721 Infiniti Code - Function Code Data From Front Right Transmitter Is Malfunctioning

What does this mean?

What are the Possible Causes of the DTC C1721 Infiniti?

Faulty Front Right Transmitter sensor
Front Right Transmitter sensor has not bee programmed
Faulty Tire Pressure Receiver
Faulty Body Control Module (BCM)

How to Fix the DTC C1721 Infiniti?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1721 Infiniti code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C1721 Infiniti code?

Need more information on how to fix the C1721 Infiniti code? Get Access to Factory Service Manuals

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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 C1721 Infiniti Code

What does OBDII code C1721 mean for my Infiniti?

OBDII code C1721 indicates that the function code data from the front right tire pressure monitoring system (TPMS) transmitter is malfunctioning.

What are the common symptoms associated with code C1721?

Common symptoms include the tire pressure warning light illuminating on the dashboard and possibly inaccurate tire pressure readings.

What could cause the C1721 code to be triggered?

Possible causes include a faulty front right tire pressure sensor, a dead battery in the sensor, damaged wiring, or issues with the TPMS control module.

Can I drive my Infiniti with the C1721 code active?

While it is possible to drive, it is not advisable as it may lead to under-inflated tires, which can affect vehicle handling and safety.

How can I diagnose the issue related to the C1721 code?

You can start by using an OBDII scanner to confirm the code, then inspect the front right tire pressure sensor, its wiring, and connections for any visible damage.

What are some common repair solutions for code C1721?

Common repairs include replacing the front right tire pressure sensor, fixing any damaged wiring, or resetting the TPMS system after addressing the issue.

Will clearing the C1721 code fix the problem?

Clearing the code will turn off the warning light, but if the underlying issue is not resolved, the code is likely to reappear.

How can I prevent the C1721 code from returning?

Regularly check and maintain tire pressure, ensure tire sensors are functioning properly, and replace batteries in TPMS sensors as needed.

Is it necessary to have a professional mechanic fix code C1721?

While some DIY enthusiasts may handle it, professional diagnosis and repair may be beneficial, especially if you are unsure about the electrical components involved.