Click here

TIRE PRESSURE WARNING SYSTEM, Diagnostic DTC:C2177/77

Click here
Click here
DTC Code DTC Name
C2177/77 Initialization not Completed
Click here

DESCRIPTION

Initialization is necessary if one of the following occurs:


Tire pressure initialization is started by pressing and holding the tire pressure warning reset switch with the ignition switch to ON. The tire pressure warning ECU and receiver flashes the tire pressure warning light of the combination meter assembly 3 times and registers the tire pressure sent by the tire pressure warning valve and transmitter after receiving an initialization command signal.

DTC No. Detection Item DTC Detection Condition Trouble Area
C2177/77 Initialization not Completed

All conditions below are met:


  • During initialization

  • Tire pressure warning valve and transmitter is not in stop mode.

  • Signal is not received from tire pressure warning valve and transmitter for 20 minutes or more.

  • Vehicle speed is more than 40 km/h (25 mph) for a total of 20 minutes.

  • Tire pressure warning valve and transmitter

  • Wire harness or connector

  • Tire pressure warning ECU and receiver
Click here

WIRING DIAGRAM

Click here

CAUTION / NOTICE / HINT

Note:

  • When replacing the tire pressure warning ECU and receiver, read the transmitter IDs stored in the old ECU using the GTS and write them down before removal.

  • It is necessary to perform initialization after registrationClick hereof the transmitter IDs into the tire pressure warning ECU and receiver if the ECU and/or one of the valve and transmitters has been replaced.

Click here

PROCEDURE


  1. Click here

    CHECK FREQUENCY RECEIVING CONDITION


    1. Check that the following conditions are not met:


      1. Facilities or devices that use similar radio frequencies are located in the vicinity of the vehicle.

        Tip:

        If the vehicle is located in an area such as the one described above, the tire pressure warning light may come on after blinking 1 minute only in a particular area due to interfering radio frequencies.

      2. Devices using similar radio frequencies are used in the vehicle.

        OK
        Facilities or devices that use similar radio frequencies are not located in the vicinity of the vehicle.
        Tip:

        Radio transmissions may be interrupted due to the surroundings or devices installed by the user.

      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      CHECK IF ANY DEVICE IS INSTALLED BY USER

  2. Click here

    PERFORM INITIALIZATION


    1. Perform initialization.

      Click here

      Result
      Proceed to
      NEXT

  3. Click here

    CONFIRM TIRE INFLATION PRESSURE (DATA LIST)


    1. Turn the ignition switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the GTS on.

    5. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

    6. Check the values by referring to the table below.


      1. Chassis > Tire Pressure Monitor > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        ID 1 Tire Inflation Pressure ID1 tire inflation pressure

        min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi)

        max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi)

        		 Actual tire inflation pressure If N/A is displayed, data has not been received.*
        ID 2 Tire Inflation Pressure ID2 tire inflation pressure

        min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi)

        max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi)

        		 Actual tire inflation pressure If N/A is displayed, data has not been received.*
        ID 3 Tire Inflation Pressure ID3 tire inflation pressure

        min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi)

        max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi)

        		 Actual tire inflation pressure If N/A is displayed, data has not been received.*
        ID 4 Tire Inflation Pressure ID4 tire inflation pressure

        min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi)

        max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi)

        		 Actual tire inflation pressure If N/A is displayed, data has not been received.*
        ID 5 Tire Inflation Pressure ID5 tire inflation pressure

        min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi)

        max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi)

        		 Actual tire inflation pressure If N/A is displayed, data has not been received.*






      Tip:

      • *: It may take a few minutes until the values are displayed.

      • When an "ID Tire Inflation Pressure" value has not changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270 degrees. Then rapidly release the tire pressure and recheck the value.


      1. Chassis > Tire Pressure Monitor > Data List
        Tester Display
        ID 1 Tire Inflation Pressure
        ID 2 Tire Inflation Pressure
        ID 3 Tire Inflation Pressure
        ID 4 Tire Inflation Pressure
        ID 5 Tire Inflation Pressure








      Result
      Result Proceed to
      All tire pressure readings are equal to specified values. A
      Tire pressure values are not displayed. B