NAVIGATION SYSTEM, Diagnostic DTC:B15D3

DESCRIPTION

The multi-media module receiver assembly and stereo component amplifier assembly are connected by the MOST communication line.

When a MOST communication error occurs between the multi-media module receiver assembly and stereo component amplifier assembly, this DTC will be stored.

• *1: w/ Rear Seat Entertainment System

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK 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

   
   

   NG

   GO TO DTC "B15C3" IN DIAGNOSTIC TROUBLE CODE CHART Click here

   OK

2. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)

   
   

   1. Check for optional components.

      
      

      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 MOST communication.

         • This DTC may be stored when a MOST communication error occurs due to electrical noise.

   
   

   B

   CHECK 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 DTC

   
   

   1. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

   
   

   NG

   CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY POWER SOURCE) Click here

   OK

   END

5. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY POWER SOURCE)

   
   

   1. Disconnect the O42 stereo component amplifier assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition O42-3 (GND) - Body ground Always Below 1 Ω O42-18 (GND2) - 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 O42-1 (+B) - O42-3 (GND) Power switch off 11 to 14 V O42-16 (+B2) - O42-3 (GND) Power switch off 11 to 14 V

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

6. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - MULTI-MEDIA MODULE RECEIVER ASSEMBLY)

   
   

   1. Disconnect the O43 stereo component amplifier assembly connector.

   2. Disconnect the G45 multi-media module receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition O43-2 (MI+) - G45-5 (MO+) Always Below 1 Ω O43-3 (MI-) - G45-6 (MO-) Always Below 1 Ω O43-4 (SLDI) - G45-7 (SLDO) Always Below 1 Ω O43-2 (MI+) - Body ground Always 10 kΩ or higher O43-3 (MI-) - Body ground Always 10 kΩ or higher O43-4 (SLDI) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

7. CONFIRM MODEL

   
   

   1. Choose the model to be inspected.

      Result
      Model Proceed to w/o Rear Seat Entertainment System A w/ Rear Seat Entertainment System B

   
   

   B

   CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY) Click here

   A

8. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - MULTI-MEDIA MODULE RECEIVER ASSEMBLY)

   
   

   1. Disconnect the O43 stereo component amplifier assembly connector.

   2. Disconnect the G45 multi-media module receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition O43-5 (MO+) - G45-2 (MI+) Always Below 1 Ω O43-6 (MO-) - G45-3 (MI-) Always Below 1 Ω O43-7 (SLDO) - G45-4 (SLDI) Always Below 1 Ω O43-5 (MO+) - Body ground Always 10 kΩ or higher O43-6 (MO-) - Body ground Always 10 kΩ or higher O43-7 (SLDO) - Body ground Always 10 kΩ or higher

   4. Proceed to the next step based on the inspection result.

      Result
      Condition Proceed to NG A OK B

   
   

   B

   REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

   A

   REPAIR OR REPLACE HARNESS OR CONNECTOR

9. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY)

   
   

   1. Disconnect the O43 stereo component amplifier assembly connector.

   2. Disconnect the O44 multi-display controller sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition O43-5 (MO+) - O44-2 (MI+) Always Below 1 Ω O43-6 (MO-) - O44-3 (MI-) Always Below 1 Ω O43-7 (SLDO) - O44-4 (SLDI) Always Below 1 Ω O43-5 (MO+) - Body ground Always 10 kΩ or higher O43-6 (MO-) - Body ground Always 10 kΩ or higher O43-7 (SLDO) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

10. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

    
    

    1. Replace the stereo component amplifier assembly Click here.

    2. Clear the DTCs Click here.

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

       OK
       No DTCs are output.

    
    

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

    END