c1721 function code data from front right transmitter is malfunctioning 2

C1721 Function Code Data from Front Right Transmitter is Malfunctioning 2

  • OBD2 Code: C1721
  • Description: Function code data from front right transmitter is malfunctioning.
  • Definition: This diagnostic trouble code (DTC) indicates an issue with the signal or data transmission from the front right wheel speed sensor or transmitter. It may be caused by a faulty sensor, wiring issues, or a problem with the vehicle’s ABS system.

C1721 – Front Right Transmitter Malfunctioning 2

Typical Severity: Critical

Common Causes

C1721 – Function code data from front right transmitter is malfunctioning 2

Common causes:

  • Defective front right tire pressure sensor
  • Low tire pressure in the front right tire
  • Interference or signal disruption affecting the transmitter
  • Faulty wiring or connections related to the front right transmitter

 

Common Misdiagnosis

OBD2 Code: C1721

Description: Data from front right transmitter is malfunctioning 2

Common Misdiagnosis: Faulty sensor or wiring issues are often misdiagnosed as a problem with the tire pressure monitoring system (TPMS) module.

 

Common Diagnostic Steps

OBD2 Code: C1721

Description: Data from front right transmitter is malfunctioning.

Common Diagnostic Steps:

  • Inspect the front right wheel speed sensor for any physical damage or disconnection.
  • Check the wiring harness and connectors leading to the front right transmitter for signs of wear, corrosion, or loose connections.
  • Use a diagnostic scan tool to read live data from the wheel speed sensors and compare readings with other wheels to identify discrepancies.
  • Test the continuity and resistance of the wheel speed sensor circuit using a multimeter.
  • If applicable, update or reprogram the vehicle’s control module software as per manufacturer recommendations.
  • If all tests pass but the issue persists, consider replacing the front right wheel speed sensor or transmitter unit.

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