NAVIGATION SYSTEM, Diagnostic DTC:B15DA

DTC Code DTC Name
B15DA Rear Console Recognition Disconnected

DESCRIPTION

The cooler control switch assembly is connected via AVC-LAN communication line.

This DTC is stored when an AVC-LAN communication error occurs between the radio and display receiver assembly and cooler control switch assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15DA Rear Console Recognition Disconnected

When either of the following conditions is met:


  • The cooler control switch assembly is/was not connected while the ignition switch is/was ON or IG

  • Communication between the master unit and the cooler control switch assembly is not possible when the engine is started

  • Cooler control switch assembly power source circuit

  • AVC-LAN circuit between radio and display receiver assembly and cooler control switch assembly

  • Cooler control switch assembly

  • Stereo component amplifier assembly*

  • Radio and display receiver assembly

  • Harness or connector

Tech Tips

The radio and display receiver assembly is the master unit.

WIRING DIAGRAM

Figure 1. for 6 Speakers

B006ZURE08

Figure 2. for 9 Speakers

B0071N7E18

CAUTION / NOTICE / HINT

Note


  • 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 radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:


    • A communication malfunction DTC may be stored.

    • The radio and display receiver assembly may not operate normally.


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

PROCEDURE


  1. CHECK MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for 6 Speakers A
      for 9 Speakers B

    B

    CHECK DTC Click here

    A

  2. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Check that optional components (including associated wiring) which generate radio waves are not installed.

      Result
      Result Proceed to
      Optional components (including associated wiring) are installed. A
      Optional components (including associated wiring) are not installed. B

      Tech Tips


      • Electrical noise from radio waves generated by optional components or the wiring for those components may affect AVC-LAN communication.

      • This DTC may be stored when an AVC-LAN communication error occurs due to electrical noise.


    B

    GO TO STEP 4 Click here

    A

  3. REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Remove optional components (including associated wiring).

      Note

      Do not remove optional components or associated wiring without the permission of the customer.

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK DTC


    1. Clear the DTCs.


      Body Electrical > Navigation System > Clear DTCs

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


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

    OK

    END

    NG

  5. CHECK HARNESS AND CONNECTOR (COOLER CONTROL SWITCH ASSEMBLY POWER SOURCE)


    1. Disconnect the Z1 cooler control switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Z1-16 (GND) - 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
      Z1-9 (+B) - Z1-16 (GND) Always 11 to 14 V
      Z1-10 (IG+) - Z1-16 (GND) Ignition switch ON 11 to 14 V
      Z1-1 (ACC) - Z1-16 (GND) Ignition switch ACC 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (COOLER CONTROL SWITCH ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY)


    1. Disconnect the Z1 cooler control switch assembly connector.

    2. Disconnect the K3 radio and display receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Z1-7 (TX+) - K3-5 (TX1+) Always Below 1 Ω
      Z1-8 (TX-) - K3-6 (TX1-) Always Below 1 Ω
      Z1-7 (TX+) or K3-5 (TX1+) - Body ground Always 10 kΩ or higher
      Z1-8 (TX-) or K3-6 (TX1-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE COOLER CONTROL SWITCH ASSEMBLY


    1. Replace the cooler control switch assembly with a new or known good one.

      Click here

    2. Clear the DTCs.


      Body Electrical > Navigation System > Clear DTCs

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


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

    OK

    END

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

  8. CHECK DTC


    1. If DTC B15D3 is output, perform troubleshooting for DTC B15D3 first.

      Result
      Result Proceed to
      DTC B15D3 is not output. A
      DTC B15D3 is output. B

    B

    GO TO DTC B15D3 Click here

    A

  9. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Check that optional components (including associated wiring) which generate radio waves are not installed.

      Result
      Result Proceed to
      Optional components (including associated wiring) are installed. A
      Optional components (including associated wiring) are not installed. B

      Tech Tips


      • Electrical noise from radio waves generated by optional components or the wiring for those components may affect AVC-LAN communication.

      • This DTC may be stored when an AVC-LAN communication error occurs due to electrical noise.


    B

    GO TO STEP 11 Click here

    A

  10. REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Remove optional components (including associated wiring).

      Note

      Do not remove optional components or associated wiring without the permission of the customer.

      Result
      Proceed to
      NEXT

    NEXT

  11. CHECK DTC


    1. Clear the DTCs.


      Body Electrical > Navigation System > Clear DTCs

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


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

    OK

    END

    NG

  12. CHECK HARNESS AND CONNECTOR (COOLER CONTROL SWITCH ASSEMBLY POWER SOURCE)


    1. Disconnect the Z1 cooler control switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Z1-16 (GND) - 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
      Z1-9 (+B) - Z1-16 (GND) Always 11 to 14 V
      Z1-10 (IG+) - Z1-16 (GND) Ignition switch ON 11 to 14 V
      Z1-1 (ACC) - Z1-16 (GND) Ignition switch ACC 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. CHECK HARNESS AND CONNECTOR (COOLER CONTROL SWITCH ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)


    1. Disconnect the Z1 cooler control switch assembly connector.

    2. Disconnect the K10 stereo component amplifier assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Z1-7 (TX+) - K10-20 (TXD+) Always Below 1 Ω
      Z1-8 (TX-) - K10-19 (TXD-) Always Below 1 Ω
      Z1-7 (TX+) or K10-20 (TXD+) - Body ground Always 10 kΩ or higher
      Z1-8 (TX-) or K10-19 (TXD-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. REPLACE COOLER CONTROL SWITCH ASSEMBLY


    1. Replace the cooler control switch assembly with a new or known good one.

      Click here

    2. Clear the DTCs.


      Body Electrical > Navigation System > Clear DTCs

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


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

    OK

    END

    NG

  15. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY


    1. Replace the stereo component amplifier assembly with a new or known good one.

      Click here

    2. Clear the DTCs.


      Body Electrical > Navigation System > Clear DTCs

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


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

    OK

    END

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here