TELEMATICS SYSTEM (w/ Telematics Transceiver), Diagnostic DTC:B1573, B15CB

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

DESCRIPTION

If an open or short in the roof antenna assembly is detected continuously for 1 minute as a result of a terminal check performed by the telematics transceiver every minute after the engine switch is turned on (ACC), this DTC will be stored.

DTC No. DTC Detection Condition Trouble Area
B1573 The roof antenna assembly has a short circuit

  • Roof antenna assembly

  • No. 3 antenna cord sub-assembly

  • No. 2 antenna cord sub-assembly

  • Harness or connector

  • Telematics transceiver

  • Multi-media module receiver assembly
B15CB The roof antenna assembly is not connected or has an open

  • Roof antenna assembly

  • No. 3 antenna cord sub-assembly

  • No. 2 antenna cord sub-assembly

  • Harness or connector

  • Telematics transceiver

  • Multi-media module receiver assembly

WIRING DIAGRAM

A01FHR0E01

INSPECTION PROCEDURE

Note


  • Check for DTC B15DB. When DTC B15DB is output, perform troubleshooting for it first Click here.

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for G-BOOK Click here.

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Clear the DTCs Click here.

    2. Recheck for DTCs and check if the same DTC is output again.

      OK
      B1573 or B15CB is not output.

    NG

    INSPECT ROOF ANTENNA ASSEMBLY Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. INSPECT ROOF ANTENNA ASSEMBLY


    1. A01FIIGE05

      Remove the roof antenna assembly.

    2. 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

    NG

    REPLACE ROOF ANTENNA ASSEMBLY Click here

    OK

  3. INSPECT NO. 3 ANTENNA CORD SUB-ASSEMBLY


    1. A01FDV3E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Roof Antenna Assembly)
      *b

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-assembly)

      Disconnect the No. 3 antenna cord sub-assembly from the roof antenna assembly connector.

    2. Disconnect the No. 3 antenna cord sub-assembly from the No. 2 antenna cord sub-assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-4 - B-1 Always Below 1 Ω
      A-4a - B-1a Always Below 1 Ω
      A-4 - Body ground Always 10 kΩ or higher
      A-4a - Body ground Always 10 kΩ or higher

    NG

    REPLACE NO. 3 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  4. INSPECT NO. 2 ANTENNA CORD SUB-ASSEMBLY


    1. A01FHT6E04
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Antenna Cord Sub-assembly)
      *b

      Front view of wire harness connector

      (to Instrument Panel Wire)

      Disconnect the No. 2 antenna cord sub-assembly from the No. 3 antenna cord sub-assembly.

    2. Disconnect the No. 2 antenna cord sub-assembly from the instrument panel wire.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B-1 - 3 (TEL1) Always Below 1 Ω
      B-1a - 3a Always Below 1 Ω
      B-1 - Body ground Always 10 kΩ or higher
      B-1a - Body ground Always 10 kΩ or higher

    NG

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (NO. 2 ANTENNA CORD SUB-ASSEMBLY - TELEMATICS TRANSCEIVER)


    1. A01FEWOE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-assembly)
      *b

      Front view of wire harness connector

      (to Telematics Transceiver)

      Disconnect the N141 No. 2 antenna cord sub-assembly connector.

    2. Disconnect the N171 telematics transceiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N141-3 (TEL1) - N171-1 (TEL2) Always Below 1 Ω
      N141-3a - N171-1a Always Below 1 Ω
      N141-3 (TEL1) - Body ground Always 10 kΩ or higher
      N141-3a - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. REPLACE TELEMATICS TRANSCEIVER


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


    NEXT

  7. CHECK DTC OUTPUT


    1. Clear the DTCs Click here.

    2. Recheck for DTCs and check if the same DTC is output again.

      OK
      B1573 or B15CB is not output.

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

    END (TELEMATICS TRANSCEIVER IS DEFECTIVE)