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

Note

w/ ID Switching Function:

(Main) is displayed on the DTC screen for the DTCs even when the 2nd set of tires is selected.

INSPECTION PROCEDURE

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 Click here after registration Click here of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU has been replaced.

PROCEDURE


  1. CONFIRM REGISTRATION CONDITION (REGISTERED ID CODES)


    1. Turn the power switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the power switch on (IG).

    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.

      Tire Pressure Monitor
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Registered ID 1 code

      Registered ID1 code/

      min.: 0

      max.: FFFFFFF*

      		 ID No. registered for transmitter ID1 displayed -
      Registered ID 2 code

      Registered ID2 code/

      min.: 0

      max.: FFFFFFF*

      		 ID No. registered for transmitter ID2 displayed -
      Registered ID 3 code

      Registered ID3 code/

      min.: 0

      max.: FFFFFFF*

      		 ID No. registered for transmitter ID3 displayed -
      Registered ID 4 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 GTS.
      Result
      Result Proceed to
      NG A
      OK (for FMVSS138 Type) B
      OK (for ECE-R64 Type) C

    B

    REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER Click here

    C

    REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER Click here

    A

  2. PERFORM REGISTRATION (TRANSMITTER ID)


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


    NEXT

  3. PERFORM INITIALIZATION


    1. Perform initialization Click here.


    NEXT

  4. CONFIRM TIRE INFLATION PRESSURE (DATA LIST)


    1. Turn the power switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the power switch on (IG).

    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.

      Tire Pressure Monitor
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      ID 1 Tire Inflation Pressure

      ID1 tire inflation pressure/

      min.: Absolute pressure / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure / 0 kPa (0 kgf/cm2, 0 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 N/A is displayed, data has not been received.*
      ID 2 Tire Inflation Pressure

      ID2 tire inflation pressure/

      min.: Absolute pressure / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure / 0 kPa (0 kgf/cm2, 0 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 N/A is displayed, data has not been received.*
      ID 3 Tire Inflation Pressure

      ID3 tire inflation pressure/

      min.: Absolute pressure / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure / 0 kPa (0 kgf/cm2, 0 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 N/A is displayed, data has not been received.*
      ID 4 Tire Inflation Pressure

      ID4 tire inflation pressure/

      min.: Absolute pressure / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure / 0 kPa (0 kgf/cm2, 0 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 N/A is displayed, 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 (for FMVSS138 Type). B
      Tire pressure values are not displayed (for ECE-R64 Type). C

    B

    REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER Click here

    C

    REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER Click here

    A

    END