TIRE PRESSURE WARNING SYSTEM, Diagnostic DTC:C2198/98

DTC Code DTC Name
C2198/98 Initialization Switch (for Test Mode DTC)

DESCRIPTION

The switch circuit inside the combination meter assembly turns on and off according to the steering pad switch assembly operation.

During test mode, the tire pressure warning light blinks at 0.125 second intervals when "Set Pressure" is selected on the multi-information display, and illuminates when the "OK" switch (steering pad switch assembly) is pressed.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
C2198/98 Initialization Switch (for Test Mode DTC) Test mode procedure is performed.

  • Steering pad switch assembly

  • Spiral cable sub-assembly

  • Wire harness or connector

  • Tire pressure warning ECU and receiver

 -

WIRING DIAGRAM

B006X1CE02

CAUTION / NOTICE / HINT

Note


  • When replacing the tire pressure warning ECU and receiver, read the transmitter IDs and number of the transmitters (4 or 5) stored in the old ECU using the GTS and write them down before removal.

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

PROCEDURE


  1. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Remove the steering pad switch assembly.

      Click here

    2. Inspect the steering pad switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    OK

  2. INSPECT SPIRAL CABLE SUB-ASSEMBLY


    1. Remove the spiral cable sub-assembly.

      Click here

    2. Inspect the spiral cable sub-assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY)


    1. Disconnect the K22 spiral cable sub-assembly connector.

    2. Disconnect the K21 combination meter assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      K22-10 (+DP2) - K21-28 (MSM+) Always Below 1 Ω
      K22-10 (+DP2) or K21-28 (MSM+) - Body ground Always 10 kΩ or higher
      K22-11 (+DP) - K21-29 (MSTI) Always Below 1 Ω
      K22-11 (+DP) or K21-29 (MSTI) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - TIRE PRESSURE WARNING ECU AND RECEIVER)


    1. Disconnect the R9 or R120 tire pressure warning ECU and receiver connector.

    2. Disconnect the K21 combination meter assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      w/ Smart Entry and Start System
      Tester Connection Condition Specified Condition
      R9-3 (CLSW) - K21-4 (INT) Always Below 1 Ω
      R9-3 (CLSW) or K21-4 (INT) - Body ground Always 10 kΩ or higher
      K21-21 (ES) - Body ground Always Below 1 Ω
      w/o Smart Entry and Start System
      Tester Connection Condition Specified Condition
      R120-3 (CLSW) - K21-4 (INT) Always Below 1 Ω
      R120-3 (CLSW) or K21-4 (INT) - Body ground Always 10 kΩ or higher
      K21-21 (ES) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK TERMINAL VOLTAGE (INT)


    1. Connect the R9 or R120 tire pressure warning ECU and receiver connector.

    2. Disconnect the K21 combination meter assembly connector.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      K21-4 (INT) - Body ground Ignition switch ON 8 to 15 V
      Result
      Proceed to
      OK
      NG

    OK

    GO TO METER / GAUGE SYSTEM Click here

    NG

    REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER Click here