AUDIO AND VISUAL SYSTEM (for Radio and Display Type with Intuitive Parking Assist System), Diagnostic DTC:B15C3

DESCRIPTION

This DTC is stored when a malfunction occurs in the speakers.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR

   
   

   1. Disconnect the connectors from the stereo component amplifier assembly and speakers.

   2. Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance

      Tester Connection Condition Specified Condition I68-15 (FR+) - Body ground Always 10 kΩ or higher I68-30 (FR-) - Body ground Always 10 kΩ or higher I68-11 (FL+) - Body ground Always 10 kΩ or higher I68-26 (FL-) - Body ground Always 10 kΩ or higher I68-12 (TWR+) - Body ground Always 10 kΩ or higher I68-27 (TWR-) - Body ground Always 10 kΩ or higher I68-14 (TWL+) - Body ground Always 10 kΩ or higher I68-29 (TWL-) - Body ground Always 10 kΩ or higher I68-13 (CTR+) - Body ground Always 10 kΩ or higher I68-28 (CTR-) - Body ground Always 10 kΩ or higher I68-10 (SR+) - Body ground Always 10 kΩ or higher I68-25 (SR-) - Body ground Always 10 kΩ or higher I68-9 (SL+) - Body ground Always 10 kΩ or higher I68-24 (SL-) - Body ground Always 10 kΩ or higher I68-8 (WF1+) - Body ground Always 10 kΩ or higher I68-23 (WF1-) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

2. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

   
   
   1. 

      Text in Illustration

      *A	for RH
      *B	for LH
      *a	Component without harness connected (Front No. 1 Speaker Assembly)

      Resistance check

      
      

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

         Standard Resistance
         Tester Connection Condition Specified Condition J5-1 (+) - J5-2 (-) Always 4.6 to 6.6 Ω K5-1 (+) - K5-2 (-) Always 4.6 to 6.6 Ω

   
   

   NG

   REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

   OK

3. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

   
   
   1. 

      Text in Illustration

      *A	for RH
      *B	for LH
      *a	Component without harness connected (Front No. 2 Speaker Assembly)

      Resistance check

      
      

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

         Standard Resistance
         Tester Connection Condition Specified Condition I84-4 - I84-3 Always 3.4 to 5.2 Ω I2-4 - I2-3 Always 3.4 to 5.2 Ω

   
   

   NG

   REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

   OK

4. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY

   
   
   1. 

      Text in Illustration

      *a	Component without harness connected (Front No. 3 Speaker Assembly)

      Resistance check

      
      

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

         Standard Resistance
         Tester Connection Condition Specified Condition I60-1 - I60-2 Always 6.8 to 10.2 Ω

   
   

   NG

   REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

   OK

5. INSPECT REAR NO. 2 SPEAKER ASSEMBLY

   
   
   1. 

      Text in Illustration

      *A	for RH
      *B	for LH
      *a	Component without harness connected (Rear No. 2 Speaker Assembly)

      Resistance check

      
      

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

         Standard Resistance
         Tester Connection Condition Specified Condition O19-1 - O19-2 Always 6.8 to 10.2 Ω O20-1 - O20-2 Always 6.8 to 10.2 Ω

   
   

   NG

   REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

   OK

6. INSPECT REAR SPEAKER ASSEMBLY

   
   
   1. 

      Text in Illustration

      *a	Component without harness connected (Rear Speaker Assembly)

      Resistance check

      
      

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

         Standard Resistance
         Tester Connection Condition Specified Condition O22-1 - O22-2 Always 4.8 to 6.8 Ω

   
   

   NG

   REPLACE REAR SPEAKER ASSEMBLY Click here

   OK

   REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here