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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> Wheel And Tire System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> C1720-00, C1721-00, C1722-00, C1723-00 Tire Pressure Sensor >> DTC Description

DTC Description

DTC DETECTION LOGIC 

NOTE: SYMBOL The Signal Tech II Tool [- (NI-50190)] can be used to perform the following functions: Refer to the Signal Tech II User Guide for additional information.
  • Activate and display TPMS sensor IDs
  • Display tire pressure reported by the TPMS sensor
  • Read TPMS DTCs
  • Register TPMS sensor IDs
DTC No. CONSULT screen terms(Trouble diagnosis content) DTC detecting condition
C1720-00 [CODE ERROR] FL(Function code error front left) Diagnosis condition When ignition switch is ON.
Signal (terminal) Tire pressure sensor signal (-).
Threshold Function code data from front LH wheel sensor is malfunctioning.
Diagnosis delay time -
C1721-00 [CODE ERROR] FR(Function code error front right) Diagnosis condition When ignition switch is ON.
Signal (terminal) Tire pressure sensor signal (-).
Threshold Function code data from front RH wheel sensor is malfunctioning.
Diagnosis delay time -
C1722-00 [CODE ERROR] RR(Function code error rear right) Diagnosis condition When ignition switch is ON.
Signal (terminal) Tire pressure sensor signal (-).
Threshold Function code data from rear RH wheel sensor is malfunctioning.
Diagnosis delay time -
C1723-00 [CODE ERROR] RL(Function code error rear left) Diagnosis condition When ignition switch is ON.
Signal (terminal) Tire pressure sensor signal (-).
Threshold Function code data from rear LH wheel sensor is malfunctioning.
Diagnosis delay time -

POSSIBLE CAUSE 

FAIL-SAFE 

-

DTC CONFIRMATION PROCEDURE 

  1. PERFORM SELF DIAGNOSTIC RESULT 
    1. SYMBOL CONSULT
      1. Drive at a speed of 16 mph (25 km/h) or more for 3 minutes, and then drive the vehicle at any speed for 10 minutes.
      2. Ignition switch ON.
      3. Select "Self Diagnostic Result" mode of "BCM(AIR PRESSURE MONITOR)".
      4. Check DTC.

    Is DTC "C1720-00", "C1721-00", "C1722-00", or "C1723-00" detected?

    YES>>

    Refer to DTC Diagnosis Procedure .

    NO>>

    To check malfunction symptom before repair: Refer to Intermittent Incident .

    NO>>

    Confirmation after repair: Inspection End.