NAVIGATION SYSTEM (for Radio and Display Type), Diagnostic DTC:B15D3

DTC Code DTC Name
B15D3 Stereo Component Amplifier Disconnected

DESCRIPTION

The radio and display receiver assembly and stereo component amplifier assembly are connected via AVC-LAN communication.

When an AVC-LAN communication error occurs between the radio and display receiver assembly and stereo component amplifier assembly, this DTC will be stored.

DTC Code DTC Detection Condition Trouble Area
B15D3

When either condition below is met:


  • Stereo component amplifier assembly is/was not connected while the engine switch is on (ACC) or on (IG).

  • Communication between the master unit and the stereo component amplifier assembly is not possible when the engine is started.

  • Stereo component amplifier assembly

  • Radio and display receiver assembly

  • Harness or connector

Tech Tips


  • Even if no fault is present, this DTC may be stored depending on the battery condition.

  • The radio and display receiver assembly is the master unit.

WIRING DIAGRAM

A01DLUJE06

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CHECK FOR DTC


    1. If DTC B15C3 is output, perform the troubleshooting of DTC B15C3 first.

      Result
      Result Proceed to
      DTC B15C3 is not output. A
      DTC B15C3 is output. B

    B

    GO TO DTC "B15C3" IN DIAGNOSTIC TROUBLE CODE CHART 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

    CHECK FOR DTC 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.


    NEXT

  4. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Recheck for DTCs and check if the same DTC is output again Click here.

      OK
      No DTCs are output.

    NG

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - BATTERY AND BODY GROUND) Click here

    OK

    END (COMMUNICATION MALFUNCTION DUE TO NOISE)

  5. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - BATTERY AND BODY GROUND)


    1. Disconnect the stereo component amplifier assembly connectors.

      A01DNSQE01
      Text in Illustration
      *A for 5 Door *B for 3 Door
      *a

      Front view of wire harness connector

      (to Stereo Component Amplifier Assembly)

      		 - -

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

      Standard Resistance
      for 5 Door
      Tester Connection Condition Specified Condition
      H64-2 (GND) - Body ground Always Below 1 Ω
      H64-6 (GND2) - Body ground Always Below 1 Ω
      for 3 Door
      Tester Connection Condition Specified Condition
      H67-3 (GND) - Body ground Always Below 1 Ω
      H67-18 (GND2) - Body ground Always Below 1 Ω

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

      Standard Voltage
      for 5 Door
      Tester Connection Condition Specified Condition
      H64-1 (+B) - H64-2 (GND) Always 11 to 14 V
      H64-3 (+B2) - H64-2 (GND) Always 11 to 14 V
      H63-12 (ACC) - H64-2 (GND) Engine switch on (ACC) 11 to 14 V
      for 3 Door
      Tester Connection Condition Specified Condition
      H67-1 (+B) - H67-3 (GND) Always 11 to 14 V
      H67-16 (+B2) - H67-3 (GND) Always 11 to 14 V
      H63-12 (ACC) - H67-3 (GND) Engine switch on (ACC) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)


    1. Disconnect the H51 radio and display receiver assembly connector.

    2. Disconnect the H63 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
      H51-7 (TX1+) - H63-8 (TX+) Always Below 1 Ω
      H51-8 (TX1-) - H63-7 (TX-) Always Below 1 Ω
      H51-7 (TX1+) - Body ground Always 10 kΩ or higher
      H51-8 (TX1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY


    1. Replace the stereo component amplifier assembly with a known good one Click here.

    2. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

    END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)