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 (90 seconds) after the power 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.

Tech Tips

The telematics system (for G-BOOK) 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 (for G-BOOK) will not operate normally.

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

  • Harness or connector

  • Antenna cord sub-assembly (I/P)

  • DCM (telematics transceiver)

  • Radio receiver assembly

  • Navigation ECU

Tech Tips

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

WIRING DIAGRAM

B004XDIE01

CAUTION / NOTICE / HINT

Note


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

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

  • When replacing the radio receiver assembly or navigation ECU, always replace it with a new one.

    If a radio receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:


    • A communication malfunction DTC may be stored.

    • The radio receiver assembly or navigation ECU may not operate normally.

Tech Tips

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

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Turn the power switch off.

    3. Turn the power switch on (IG) and wait for 90 seconds.

    4. Recheck for DTCs and check that no DTCs are output.

      Click here


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

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

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


    1. Disconnect the G56 DCM (telematics transceiver) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G56-4 (E) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G56-1 (+B) - Body ground Power switch off 11 to 14 V
      G56-8 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      G56-7 (IG2) - Body ground Power switch on on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - ANTENNA CORD SUB-ASSEMBLY [I/P])


    1. Disconnect the G53 radio receiver assembly connector.

    2. Disconnect the G152 Antenna cord sub-assembly (I/P) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G53-10 (USBV) - G152-5 (USBV) Always Below 1 Ω
      G53-11 (USBG) - G152-3 (USBG) Always Below 1 Ω
      G53-10 (USBV) - Body ground Always 10 kΩ or higher
      G53-11 (USBG) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK ANTENNA CORD SUB-ASSEMBLY (I/P)


    1. B004XUJC01
      *a

      Front view of wire harness connector

      (to DCM [Telematics Transceiver])
      *b

      Front view of wire harness connector

      (to Wire Harness)

      Disconnect the antenna connector from the DCM (telematics transceiver).

    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-5 (USBV) - G152-5 (USBV) Always Below 1 Ω
      A-3 (USBG) - G152-3 (USBG) Always Below 1 Ω
      A-5 (USBV) - Body ground Always 10 kΩ or higher
      A-3 (USBG) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ANTENNA CORD SUB-ASSEMBLY (I/P) Click here

    OK

  5. CHECK RADIO RECEIVER ASSEMBLY (USBV, USBG)


    1. Disconnect the A DCM (telematics transceiver) connector.

    2. B004RLAC03
      *a

      Front view of wire harness connector

      (to DCM [Telematics Transceiver])

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-3 (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
      A-5 (USBV) - A-3 (USBG) Power switch on (ACC) 4.75 to 5.25 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  6. CHECK ANTENNA CORD SUB-ASSEMBLY (I/P)


    1. B004U41C08
      *a

      Front view of wire harness connector

      (to DCM [Telematics Transceiver])
      *b

      Front view of wire harness connector

      (to Navigation ECU)

      Disconnect the antenna connector from the DCM (telematics transceiver).

    2. Disconnect the antenna connector from the navigation ECU.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-2 (USB+) - USB-1 (USB+) Always Below 1 Ω
      A-1 (USB-) - USB-2 (USB-) Always Below 1 Ω
      A-6 (USBS) - USB-3 (USBS) Always Below 1 Ω
      A-2 (USB+) - Body ground Always 10 kΩ or higher
      A-1 (USB-) - Body ground Always 10 kΩ or higher
      A-6 (USBS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ANTENNA CORD SUB-ASSEMBLY (I/P) Click here

    OK

  7. CHECK DCM (TELEMATICS TRANSCEIVER)


    1. Replace the DCM (telematics transceiver) with a new one.

      Click here

    2. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    3. Turn the power switch off.

    4. Turn the power switch on (IG) and wait for 90 seconds.

    5. Recheck for DTCs and check that no DTCs are output.

      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

  8. CHECK NAVIGATION ECU


    1. Replace the navigation ECU with a new one.

      Click here

    2. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    3. Turn the power switch off.

    4. Turn the power switch on (IG) and wait for 90 seconds.

    5. Recheck for DTCs and check that no DTCs are output.

      Click here


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

    OK

    END (NAVIGATION ECU IS DEFECTIVE)

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here