NAVIGATION SYSTEM (for Navigation Receiver Type), 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 (NAVIGATION RECEIVER ASSEMBLY - BODY GROUND)

   
   

   1. Disconnect the I64 and I65 navigation receiver assembly connectors.

   2. Disconnect the I83 and I1 front No. 2 speaker assembly connectors.

   3. Disconnect the O18 and O21 rear speaker assembly connectors.

   4. Measure the resistance between the navigation receiver assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance

      Tester Connection Condition Specified Condition I64-1 (FR+) - Body ground Always 10 kΩ or higher I64-5 (FR-) - Body ground Always 10 kΩ or higher I64-2 (FL+) - Body ground Always 10 kΩ or higher I64-6 (FL-) - Body ground Always 10 kΩ or higher I65-1 (RR+) - Body ground Always 10 kΩ or higher I65-3 (RR-) - Body ground Always 10 kΩ or higher I65-2 (RL+) - Body ground Always 10 kΩ or higher I65-6 (RL-) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

2. CHECK HARNESS AND CONNECTOR (FRONT NO. 2 SPEAKER ASSEMBLY - BODY GROUND)

   
   

   1. Disconnect the J5 and K5 front No. 1 speaker assembly connectors.

   2. Disconnect the I83 and I1 front No. 2 speaker assembly connectors.

   3. Measure the resistance between each of the front No. 2 speaker assemblies and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition I83-3 (+) - Body ground Always 10 kΩ or higher I83-1 (-) - Body ground Always 10 kΩ or higher I1-3 (+) - Body ground Always 10 kΩ or higher I1-1 (-) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

   
   

   1. Remove the front No. 1 speaker assembly Click here.

   2. 

      Text in Illustration

      *a	Component without harness connected (Front No. 1 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition 1 - 2 Always 3.2 to 4.8 Ω

   
   

   NG

   REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

   OK

4. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

   
   

   1. Remove the front No. 2 speaker assembly Click here.

   2. 

      Text in Illustration

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition 4 (TWR+) - 2 (TWR-) Always 10 kΩ or higher 3 (+) - 4 (TWR+) Always Below 1 Ω 1 (-) - 2 (TWR-) Always Below 1 Ω 4 (TWL+) - 2 (TWL-) Always 10 kΩ or higher 3 (+) - 4 (TWL+) Always Below 1 Ω 1 (-) - 2 (TWL-) Always Below 1 Ω

   
   

   NG

   REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

   OK

5. REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

   
   

   1. Replace the front No. 2 speaker assembly with a new or known good one Click here.

   2. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

      Tech Tips

      
      

      • Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left front No. 2 speaker assembly is defective, inspect by interchanging the right one with the left one.

      • Perform the above inspection on both the LH and RH side.

   
   

   NG

   INSPECT REAR SPEAKER ASSEMBLY Click here

   OK

   END

6. INSPECT REAR SPEAKER ASSEMBLY

   
   

   1. Remove the rear speaker assembly Click here.

   2. 

      Text in Illustration

      *a	Component without harness connected (Rear Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition 1 - 2 Always 3.2 to 4.8 Ω

   
   

   NG

   REPLACE REAR SPEAKER ASSEMBLY Click here

   OK

   REPLACE NAVIGATION RECEIVER ASSEMBLY Click here