NAVIGATION SYSTEM, Diagnostic DTC:B15DB

DTC Code DTC Name
B15DB Telematics Transceiver Disconnected

DESCRIPTION

If the radio receiver assembly cannot detect the DCM (telematics transceiver) for a certain period of time (15 seconds) after the engine switch is turned on (ACC) and the radio receiver assembly confirms that the information is missing by checking past DCM (telematics transceiver) recognition information (registered information), this DTC will be stored.

The telematics system uses USB communication between devices. If an open, short, short to +B or short to ground occurs in the USB circuit, communication is interrupted and the telematics system will not operate normally.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15DB Telematics Transceiver Disconnected DCM (telematics transceiver) disconnected

  • Harness or connector

  • DCM (telematics transceiver)

  • Radio receiver assembly

Tech Tips

This DTC may be stored due to environmental reasons such as electrical noise or interference.

WIRING DIAGRAM

B00599WE01

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following procedure.

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

    Click here

  • When replacing the DCM (telematics transceiver), make sure to replace it with a new one.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (DCM [TELEMATICS TRANSCEIVER] - BATTERY AND BODY GROUND)


    1. B0059S0C14
      *a

      Front view of wire harness connector

      (to DCM [Telematics Transceiver])

      Disconnect the I40 DCM (telematics transceiver) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I40-4 (E) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I40-1 (+B) - Body ground Always 10.5 to 16 V
      I40-8 (ACC) - Body ground Engine switch on (ACC) 10.5 to 16 V
      I40-7 (IG2) - Body ground Engine switch on (IG) 10.5 to 16 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK RADIO RECEIVER ASSEMBLY


    1. Disconnect the I98 radio receiver assembly connector.

    2. B005984C06
      *a

      Component without harness connected

      (Radio Receiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2 (USBG) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      4 (USBV) - 2 (USBG) Engine switch on (ACC) 4.75 to 5.25 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - DCM [TELEMATICS TRANSCEIVER])


    1. Check the installation condition.


      1. Check the USB communication cable (digital communication cable) between the radio receiver assembly and DCM (telematics transceiver) for any installation or connection problems.

    2. Disconnect the I98 radio receiver assembly connector.

    3. Disconnect the I100 DCM (telematics transceiver) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I98-4 (USBV) - I100-4 (USBV) Always Below 1 Ω
      I98-2 (USBG) - I100-2 (USBG) Always Below 1 Ω
      I98-1-2 (USB+) - I100-1-2 (USB+) Always Below 1 Ω
      I98-1-1 (USB-) - I100-1-1 (USB-) Always Below 1 Ω
      I98-1-3 (USBS) - I100-1-3 (USBS) Always Below 1 Ω
      I98-4 (USBV) - Body ground Always 10 kΩ or higher
      I98-2 (USBG) - Body ground Always 10 kΩ or higher
      I100-1-2 (USB+) - Body ground Always 10 kΩ or higher
      I100-1-1 (USB-) - Body ground Always 10 kΩ or higher
      I100-1-3 (USBS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE DCM (TELEMATICS TRANSCEIVER)


    1. Replace the DCM (telematics transceiver).

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK DTC


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

      Click here


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (DCM [TELEMATICS TRANSCEIVER] IS DEFECTIVE)

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here