TELEMATICS SYSTEM, Diagnostic DTC:B15C4

DTC Code DTC Name
B15C4 SRS Communication Error

DESCRIPTION

If the telematics transceiver detects an error in communication between itself and the airbag sensor assembly as a result of a self check, this DTC will be stored.

DTC No. DTC Detection Condition Trouble Area
B15C4 The telematics transceiver detects an error in signals from the airbag sensor assembly when ignition switch is ON.

  • Telematics transceiver

  • Airbag sensor assembly

  • Wire harness or connector

  • Airbag system

WIRING DIAGRAM

B000JKCE01

INSPECTION PROCEDURE

Note


  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Registration for Telematics System Click here.

  • This vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System Click here.

PROCEDURE


  1. CHECK DTC (AIRBAG SYSTEM)


    1. Turn the ignition switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON and wait for 20 seconds.

    4. Turn the GTS on.

    5. Check for DTCs and check that no DTCs are output Click here.

      OK
      No DTCs are output.

    NG

    INSPECT TELEMATICS TRANSCEIVER Click here

    OK

    GO TO AIRBAG SYSTEM Click here

  2. INSPECT TELEMATICS TRANSCEIVER


    1. B000N46E23
      Text in Illustration
      *a

      Component with harness connected

      (Telematics Transceiver)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      24 (GSW) - Body ground Ignition switch ON 8.0 to 16 V
      Reference Waveform
      Item Condition
      Tester connection I218-24 (GSW) - Body ground
      Tool setting 5.0 V/DIV., 20 ms/DIV.
      Vehicle condition Ignition switch ON

    NG

    CHECK HARNESS AND CONNECTOR Click here

    OK

  3. REPLACE TELEMATICS TRANSCEIVER


    1. Replace the telematics transceiver with a new one Click here.


    NEXT

    PERFORM REGISTRATION Click here

  4. CHECK HARNESS AND CONNECTOR


    1. Disconnect the I218 telematics transceiver connector.

    2. Disconnect the I47 airbag sensor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I218-24 (GSW) - I47-24 (GSW3) Always Below 1 Ω
      I218-24 (GSW) or I47-24 (GSW3) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE AIRBAG SENSOR ASSEMBLY Click here