NAVIGATION SYSTEM, Diagnostic DTC:B15DB

DTC Code DTC Name
B15DB Telematics Transceiver Disconnected

DESCRIPTION

If the radio receiver assembly cannot detect the telephone transceiver assembly 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 telephone transceiver assembly 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 Telephone transceiver assembly disconnected

  • Harness or connector

  • Telephone transceiver assembly

  • Radio receiver assembly

  • Navigation ECU

Tech Tips

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

WIRING DIAGRAM

B004CHFE02

CAUTION / NOTICE / HINT

Note


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

  • When replacing the telephone transceiver assembly, make sure to replace it with a new one.

  • The following malfunctions may occur if a radio receiver assembly or navigation ECU from another vehicle is installed to this vehicle. Therefore, when replacing the radio receiver assembly or navigation ECU, be sure to replace them with new ones.


    • Communication malfunction DTC is output

    • Does 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 (TELEPHONE TRANSCEIVER ASSEMBLY - BATTERY AND BODY GROUND)


    1. B004A7TC06
      *a

      Front view of wire harness connector

      (to Telephone Transceiver Assembly)

      Disconnect the telephone transceiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P134-4 (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
      P134-1 (+B) - Body ground Power switch off 11 to 14 V
      P134-8 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      P134-7 (IG2) - Body ground Power switch 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 - TELEPHONE TRANSCEIVER ASSEMBLY)


    1. Disconnect the P45 radio receiver assembly connector.

    2. Disconnect the P136 telephone transceiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P45-10 (USBV) - P136-3 (USBV) Always Below 1 Ω
      P45-11 (USBG) - P136-1 (USBG) Always Below 1 Ω
      P45-10 (USBV) - Body ground Always 10 kΩ or higher
      P45-11 (USBG) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK RADIO RECEIVER ASSEMBLY (USBV, USBG)


    1. Disconnect the telephone transceiver assembly connector.

    2. B004BF8C01
      *a

      Front view of wire harness connector

      (to Telephone Transceiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P136-1 (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
      P136-3 (USBV) - P136-1 (USBG) Power switch on (ACC) 4.75 to 5.25 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (TELEPHONE TRANSCEIVER ASSEMBLY - NAVIGATION ECU)


    1. B004AO3C02
      *a

      Front view of wire harness connector

      (to Telephone Transceiver Assembly)
      *b

      Front view of wire harness connector

      (to Navigation ECU)

      Disconnect the P136 telephone transceiver assembly connector.

    2. Disconnect the P137 navigation ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P136-4 (USB-) - P137-2 (USB-) Always Below 1 Ω
      P136-5 (USB+) - P137-1 (USB+) Always Below 1 Ω
      P136-6 (USBS) - P137-3 (USBS) Always Below 1 Ω
      P136-4 (USB-) - Body ground Always 10 kΩ or higher
      P136-5 (USB+) - Body ground Always 10 kΩ or higher
      P136-6 (USBS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK TELEPHONE TRANSCEIVER ASSEMBLY


    1. Replace the telephone transceiver assembly 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 (TELEPHONE TRANSCEIVER ASSEMBLY IS DEFECTIVE)

    NG

  7. 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