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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 >> C1730-00, C1731-00, C1732-00, C1733-00 Flat Tire >> DTC Description

DTC Description

If the tire pressure drops below the specified value, the tire pressure monitoring control unit judges that a flat tire occurs and displays a message on the information display.

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
C1730-00 FLAT TIRE FL(Flat tire front left) Diagnosis condition When ignition switch is ON.
Signal (terminal) Tire pressure sensor signal (-).
Threshold Front left wheel pressure is 10 psi (70 kPa, 0.7 kg/cm2) or less.
Diagnosis delay time -
C1731-00 FLAT TIRE FR(Flat tire front right) Diagnosis condition When ignition switch is ON.
Signal (terminal) Tire pressure sensor signal (-).
Threshold Front right wheel pressure is 10 psi (70 kPa, 0.7 kg/cm2) or less.
Diagnosis delay time -
C1732-00 FLAT TIRE RR(Flat tire rear right) Diagnosis condition When ignition switch is ON.
Signal (terminal) Tire pressure sensor signal (-).
Threshold Rear right wheel pressure is 10 psi (70 kPa, 0.7 kg/cm2) or less.
Diagnosis delay time -
C1733-00 FLAT TIRE RL(Flat tire rear left) Diagnosis condition When ignition switch is ON.
Signal (terminal) Tire pressure sensor signal (-).
Threshold Rear left wheel pressure is 10 psi (70 kPa, 0.7 kg/cm2) or less.
Diagnosis delay time -

POSSIBLE CAUSE 

Low tire pressure

FAIL-SAFE 

-

DTC CONFIRMATION PROCEDURE 

  1. CHECK DTC DETECTION 
    1. SYMBOL CONSULT
      1. Ignition switch ON.
        CAUTION:

        Never start the engine.

      2. Select "Self Diagnostic Result" mode of "BCM(AIR PRESSURE MONITOR)".
      3. Check DTC.

    Is DTC "C1730-00", "C1731-00", "C1732-00", or "C1733-00" detected?

    YES>>

    Perform trouble diagnosis. Refer to DTC Diagnosis Procedure .

    NO>>

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

    NO>>

    Confirmation after repair: Inspection End.