BLOCKING SYSTEM, Diagnostic DTC:B1573, 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 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 is detected.

  • Telephone transceiver assembly

  • Instrument panel integration antenna assembly (telephone antenna)
B15CB Telematics Transceiver Antenna Disconnected 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 is detected.

  • 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 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 engine 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 > Trouble Codes
      OK
      DTCs B1573 and B15CB are not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  4. CHECK CONNECTOR CONDITION


    1. Turn the engine switch off.

    2. Disconnect the telephone transceiver assembly (telephone antenna) connector.

      B003W35C01
      *a

      Component without harness connected

      (Telephone Transceiver Assembly)

      		 *b Telephone Antenna

    3. Check that the connector pins are not bent.

      OK
      Connector pins are not bent.
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY

    OK

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


    1. B003U2EC01
      *a

      Component without harness connected

      (Instrument Panel Integration Antenna Assembly (Telephone Antenna))
      *b Core Wire
      *c 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
      DTCs B1573 and B15CB are not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  8. REPLACE INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY


    1. Temporarily replace the instrument panel integration antenna assembly with a new or known good one.

      Tech Tips

      Refer to 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
      OK
      DTCs B1573 and B15CB are not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (INSTRUMENT PANEL INTEGRATION ANTENNA ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE TELEPHONE TRANSCEIVER ASSEMBLY