TIRE PRESSURE WARNING SYSTEM, Diagnostic DTC:C2171/71

DTC Code DTC Name
C2171/71 Transmitter ID not Registered

DESCRIPTION

The IDs of each tire pressure warning valve and transmitter are registered to the tire pressure warning ECU and receiver.

When the ECU detects that a transmitter ID code is not registered in the ECU, a DTC is stored.

DTC No. DTC Detection Condition Trouble Area
C2171/71 Transmitter ID code is not registered. (When an ID code is unregistered for 3 minutes or more) Tire pressure warning ECU and receiver

INSPECTION PROCEDURE

Note


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

  • It is necessary to perform registration Click here of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU has been replaced.

  • When replacing the tire pressure warning ECU and receiver on vehicles equipped with the wireless door lock control system (w/o smart key system), be sure to perform Registration of Recognition Code to register the transmitter IDs after ECU replacement Click here.

PROCEDURE


  1. CONFIRM REGISTRATION CONDITION (REGISTERED ID CODES)


    1. Turn the ignition switch off.

    2. Connect the Techstream to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the Techstream on.

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

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

      Tire Pressure Monitor
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Registered ID1 code

      Registered ID1 code/

      min.: 0

      max.: FFFFFFF*

      		 ID No. registered for transmitter ID1 displayed -
      Registered ID2 code

      Registered ID2 code/

      min.: 0

      max.: FFFFFFF*

      		 ID No. registered for transmitter ID2 displayed -
      Registered ID3 code

      Registered ID3 code/

      min.: 0

      max.: FFFFFFF*

      		 ID No. registered for transmitter ID3 displayed -
      Registered ID4 code

      Registered ID4 code/

      min.: 0

      max.: FFFFFFF*

      		 ID No. registered for transmitter ID4 displayed -

      Tech Tips

      *: Displayed only when the ID No. is not registered.

      OK
      The registered transmitter ID codes are displayed on the Techstream.

    NG

    PERFORM REGISTRATION (TRANSMITTER ID) Click here

    OK

    REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER Click here

  2. PERFORM REGISTRATION (TRANSMITTER ID)


    1. Register the transmitter IDs for all the wheels Click here.


    NEXT

  3. CONFIRM TIRE INFLATION PRESSURE (DATA LIST)


    1. Turn the ignition switch off.

    2. Connect the Techstream to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the Techstream on.

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

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

      Tire Pressure Monitor
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      ID1 Tire Inflation Pressure

      ID1 tire inflation pressure/

      min.: Absolute pressure / 50 kPa (0.5 kgf/cm2, 7 psi), Relative pressure / -50 kPa (-0.5 kgf/cm2, -7 psi)

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

      		 Actual tire inflation pressure

      If 50 kPa (0.5 kgf/cm2, 7 psi) is displayed for absolute pressure or -50 kPa (-0.5 kgf/cm2, -7 psi) is displayed for relative pressure, data has not been received.*
      ID2 Tire Inflation Pressure

      ID2 tire inflation pressure /

      min.: Absolute pressure / 50 kPa (0.5 kgf/cm2, 7 psi), Relative pressure / -50 kPa (-0.5 kgf/cm2, -7 psi)

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

      		 Actual tire inflation pressure

      If 50 kPa (0.5 kgf/cm2, 7 psi) is displayed for absolute pressure or -50 kPa (-0.5 kgf/cm2, -7 psi) is displayed for relative pressure, data has not been received.*
      ID3 Tire Inflation Pressure

      ID3 tire inflation pressure /

      min.: Absolute pressure / 50 kPa (0.5 kgf/cm2, 7 psi), Relative pressure / -50 kPa (-0.5 kgf/cm2, -7 psi)

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

      		 Actual tire inflation pressure

      If 50 kPa (0.5 kgf/cm2, 7 psi) is displayed for absolute pressure or -50 kPa (-0.5 kgf/cm2, -7 psi) is displayed for relative pressure, data has not been received.*
      ID4 Tire Inflation Pressure

      ID4 tire inflation pressure /

      min.: Absolute pressure / 50 kPa (0.5 kgf/cm2, 7 psi), Relative pressure / -50 kPa (-0.5 kgf/cm2, -7 psi)

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

      		 Actual tire inflation pressure

      If 50 kPa (0.5 kgf/cm2, 7 psi) is displayed for absolute pressure or -50 kPa (-0.5 kgf/cm2, -7 psi) is displayed for relative pressure, data has not been received.*

      Tech Tips


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

      • When no "ID Tire Inflation Pressure" data has 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 data.

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

    B

    REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER Click here

    A

    END