TELEMATICS SYSTEM, Diagnostic DTC:B1573, B15CB

DTC Code DTC Name
B1573 Disconnect/Short in Telephone Antenna Circuit
B15CB Telephone Antenna Disconnected

DESCRIPTION

These DTCs are stored when a malfunction occurs in the telephone antenna assembly.

DTC No. DTC Detection Condition Trouble Area
B1573 Telephone antenna assembly impedance (Ω) is lower than the malfunction threshold for 20 seconds when the ignition switch is ON. (Short circuit)

  • Telematics transceiver

  • Telephone antenna assembly

  • Wire harness or connector
B15CB Telephone antenna assembly impedance (Ω) is higher than the malfunction threshold for 20 seconds when the ignition switch is ON. (Open circuit)

  • Telematics transceiver

  • Telephone antenna assembly

  • Wire harness or connector

WIRING DIAGRAM

B000KQAE05

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.

PROCEDURE


  1. CHECK DTC


    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 TELEPHONE ANTENNA ASSEMBLY Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. INSPECT TELEPHONE ANTENNA ASSEMBLY


    1. Remove the telephone antenna assembly Click here.

    2. B000LF1E07
      Text in Illustration
      *a

      Component without harness connected

      (Telephone Antenna Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 - 3a Always 4 to 11 kΩ

    NG

    REPLACE TELEPHONE ANTENNA ASSEMBLY Click here

    OK

  3. INSPECT HARNESS AND CONNECTOR


    1. Disconnect the O47 telephone antenna assembly connector.

    2. Disconnect the O49 telematics transceiver connector.

    3. B000LKRE03
      B000HV5E01

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O47-3 (TEL1) - O49-1 (TEL2) Always Below 1 Ω
      O47-3a - O49-1a Always Below 1 Ω
      O47-3 (TEL1) or O49-1 (TEL2) - Body ground Always 10 kΩ or higher
      O47-3a or O49-1a - Body ground Always 10 kΩ or higher
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Telephone Antenna Assembly)
      *b

      Front view of wire harness connector

      (to Telematics Transceiver)

    NG

    REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE TELEMATICS TRANSCEIVER


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


    NEXT

    PERFORM REGISTRATION Click here