BLOCKING SYSTEM, Diagnostic DTC:B1573 and B15CB

DTC Code DTC Name
B1573 Short in Telephone Antenna Circuit
B15CB Telematics Transceiver Antenna Disconnected

DESCRIPTION

These DTCs are stored when a malfunction occurs in the instrument panel integration antenna assembly (telephone antenna) circuit.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B1573

Short in Telephone Antenna Circuit

There is a short circuit in the instrument panel integration antenna assembly between the telephone transceiver assembly and telephone antenna, or at the points where it connects to the telephone transceiver assembly and instrument panel integration antenna assembly.

  • Telephone transceiver assembly

  • Instrument panel integration antenna assembly (telephone antenna)

B15CB

Telematics Transceiver Antenna Disconnected

There is an open circuit in the instrument panel integration antenna assembly between the telephone transceiver assembly and telephone antenna, or at the points where it connects to the telephone transceiver assembly and instrument panel integration antenna assembly.

  • Telephone transceiver assembly

  • Instrument panel integration antenna assembly (telephone antenna)

CAUTION / NOTICE / HINT

Note:

  • When replacing the telephone transceiver assembly or instrument panel integration antenna assembly, refer to the Service Bulletin.

  • When the telephone transceiver assembly is replaced, it is necessary to set the contract mode.

PROCEDURE

  1. CHECK CONNECTION OF CONNECTORS

    1. Turn the ignition switch off.

    2. Check that the connectors are properly connected to the telephone transceiver assembly and instrument panel integration antenna assembly (telephone antenna connector).

      OK

      Connectors are properly connected.

    Result

    Proceed to

    OK

    NG
    NG

    CONNECT CONNECTORS CORRECTLY

    OK

  2. CLEAR DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Telematics > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  3. CHECK FOR DTC

    1. Check for DTCs.

      Click here

      Body Electrical > Telematics > Clear DTCs

    Result

    Proceed to

    OK

    NG
    OK

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick hereClick here

    NG

  4. CHECK CONNECTOR CONDITION

    1. Turn the ignition switch off.

    2. Disconnect the instrument panel integration antenna assembly (telephone antenna) connector [color: blue].

    3. Check that the connector pins are not bent.

    Result

    Proceed to

    Connector pins are not bent

    Connector pins are bent
    Connector pins are bent

    REPAIR OR REPLACE INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY

    Connector pins are not bent

  5. CHECK INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY (TELEPHONE ANTENNA)

    1. B330778C01

      *1

      Core wire

      *2

      Shield

      Disconnect the instrument panel integration antenna assembly (telephone antenna) connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      Core wire - Shield

      Always

      4 to 11 kΩ

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY

    OK

  6. CLEAR DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Telematics > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  7. CHECK FOR DTC

    1. Wiggle the instrument panel integration antenna assembly (telephone antenna).

    2. Check for DTCs.

      Click here

      Body Electrical > Telematics > Trouble Codes

      OK

      DTC B1573 and B15CB are not output.

    Result

    Proceed to

    DTC B1573 and B15CB are not output

    DTC B1573 and B15CB are output
    DTC B1573 and B15CB are not output

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick hereClick here

    DTC B1573 and B15CB are output

  8. REPLACE INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY

    1. Temporarily replace the instrument panel integration antenna assembly with a new or normally functioning one.

      Tip:

      Refer to the Service Bulletin.

    Result

    Proceed to

    NEXT
    NEXT

  9. CLEAR DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Telematics > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  10. CHECK FOR DTC

    1. Check for DTCs.

      Click here

      Body Electrical > Telematics > Trouble Codes

    Result

    Proceed to

    DTC B1573 and B15CB are not output

    DTC B1573 and B15CB are output
    DTC B1573 and B15CB are not output

    END (INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY WAS DEFECTIVE)

    DTC B1573 and B15CB are output

    REPLACE TELEPHONE TRANSCEIVER ASSEMBLY