TELEMATICS SYSTEM(w/ Telematics Transceiver except G-BOOK), Diagnostic DTC:B1573, B15CB

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

DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area
B1573 Short in Telephone Antenna Circuit

Telephone antenna assembly impedance (Ω) is lower than the malfunction threshold for 20 seconds when the engine switch is on (IG).

(Short circuit)

  • Telematics transceiver

  • Telephone antenna assembly

  • No. 4 antenna cord sub-assembly

  • Harness or connector
B15CB Telephone Antenna Disconnected

Telephone antenna assembly impedance (Ω) is higher than the malfunction threshold for 20 seconds when the engine switch is on (IG).

(Open circuit)

  • Telematics transceiver

  • Telephone antenna assembly

  • No. 4 antenna cord sub-assembly

  • Harness or connector

WIRING DIAGRAM

B001AX3E04

CAUTION / NOTICE / HINT

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 FOR DTC


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG) 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.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. INSPECT TELEPHONE ANTENNA ASSEMBLY


    1. Remove the telephone antenna assembly.

      Click here

    2. B0018DRC15
      *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
      4 - 4a Always 4 to 11 kΩ
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE TELEPHONE ANTENNA ASSEMBLY Click here

    OK

  3. INSPECT NO. 4 ANTENNA CORD SUB-ASSEMBLY


    1. B001AWUC01
      *a

      Front view of wire harness connector

      (to Telephone Antenna Assembly)
      *b

      Front view of wire harness connector

      (to Wire Harness)

      Disconnect the antenna connector from the telephone antenna assembly.

    2. Disconnect the antenna connector from the wire harness.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-4 - B-3 Always Below 1 Ω
      A-4a - B-3a Always Below 1 Ω
      A-4 or B-3 - Body ground Always 10 kΩ or higher
      A-4a or B-3a - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 4 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (NO. 4 ANTENNA CORD SUB-ASSEMBLY - TELEMATICS TRANSCEIVER)


    1. B001B2ZC03
      *a

      Front view of wire harness connector

      (to No. 4 Antenna Cord Sub-assembly)
      *b

      Front view of wire harness connector

      (to Telematics Transceiver)

      Disconnect the antenna connector from the No. 4 antenna cord sub-assembly.

    2. Disconnect the antenna connector from the telematics transceiver.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C-1 - D-1(ANT1) Always Below 1 Ω
      C-1a - D-1a Always Below 1 Ω
      C-1 or D-1 (ANT1) - Body ground Always 10 kΩ or higher
      C-1a or D-1a - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE TELEMATICS TRANSCEIVER


    1. Replace the telematics transceiver with a new one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM REGISTRATION Click here