SAFETY CONNECT SYSTEM, Diagnostic DTC:B1573, B15CB

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

DESCRIPTION

This DTC is set when the DCM (Telematics Transceiver) detects an open or a short in the telephone and GPS antenna circuit. The DCM (Telematics Transceiver) oscillates and receives 824 - 894 MHz or 1850 - 1990 MHz radio-frequency through the telephone and GPS antenna assembly.

DTC No. DTC Detection Condition Trouble Area
B1573

Telephone and GPS antenna assembly impedance is lower than malfunction criterion for 10 seconds when engine switch is on (IG).

(Short circuit)

  • DCM (Telematics Transceiver)

  • Telephone and GPS antenna assembly

  • Wire harness or connector (Telephone and GPS antenna cord (No. 2 floor wire))
B15CB

Telephone and GPS antenna assembly impedance is higher than malfunction criterion for 10 seconds when engine switch is on (IG).

(Open circuit)

Tech Tips

Refer to "PARTS LOCATION" for the installation location of telephone and GPS antenna cord Click here.

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC


    1. Turn the engine switch off.

    2. Connect the Techstream to the DLC3.

    3. Turn the engine switch on (IG) and wait for 10 seconds.

    4. Turn the Techstream on.

    5. Perform "HEALTH CHECK" and check for current DTCs Click here.

      Result
      Result Proceed to
      DTC B1573 or B15CB is output A
      DTC B1573 or B15CB is not output B

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

  2. INSPECT TELEPHONE AND GPS ANTENNA ASSEMBLY


    1. A01HOCBE02
      Text in Illustration
      *a Telephone and GPS Antenna Assembly

      Disconnect the telephone and GPS antenna assembly connector from the telephone and GPS antenna cord (No. 2 floor wire).

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (TEL1) - 3a Always 4 to 11 kΩ

    NG

    REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY Click here

    OK

  3. INSPECT TELEPHONE AND GPS ANTENNA CORD (NO. 2 FLOOR WIRE)


    1. A01HOXZE03
      Text in Illustration
      *a Telephone and GPS antenna cord (No. 2 Floor Wire)

      Disconnect the telephone and GPS antenna cord (No. 2 floor wire) connector from the DCM (Telematics Transceiver).

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O34-3 (TEL1) - O36-1 (TEL2) Always Below 1 Ω
      O34-3a - O36-1a Always Below 1 Ω
      O34-3 (TEL1) - Body ground Always 10 kΩ or higher
      O34-3a - Body ground Always 10 kΩ or higher

    NG

    REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 2 FLOOR WIRE)

    OK

  4. REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY


    1. Replace the telephone and GPS antenna assembly with a known good one and check if the same problem occurs again Click here.

      OK
      The system returns to normal.

    NG

    REPLACE DCM (TELEMATICS TRANSCEIVER) Click here

    OK

    END

  5. REPLACE DCM (TELEMATICS TRANSCEIVER)


    1. Replace the DCM (Telematics Transceiver) Click here.

      Note


      • The engine switch must be off.

      • Do not swap the DCM (Telematics Transceiver) with one from another vehicle.


    NEXT

    PERFORM DCM ACTIVATION Click here