NAVIGATION SYSTEM (for DVD) Speaker Circuit

DESCRIPTION

When the vehicle has a built-in type amplifier, the sound signals are sent from the navigation receiver assembly to the speakers via this circuit.

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CHECK HARNESS AND CONNECTOR

   
   
   1. 

      Disconnect the connectors shown in the illustration from the navigation receiver assembly and speakers.

   2. Measure the resistance between each of the front No. 2 speakers and the navigation receiver assembly to check for an open circuit in the wire harness.

      Standard resistance
      Tester Connection Condition Specified Condition E6-2 (FL+) - F2-2 Always Below 1 Ω E6-6 (FL-) - F2-4 Always Below 1 Ω E6-1 (FR+) - f2-2 Always Below 1 Ω E6-5 (FR-) - f2-4 Always Below 1 Ω

   3. Measure the resistance between each of the front No. 1 speakers and the navigation receiver assembly to check for an open circuit in the wire harness.

      Standard resistance
      Tester Connection Condition Specified Condition E6-2 (FL+) - H5-1 Always Below 1 Ω E6-6 (FL-) - H5-2 Always Below 1 Ω E6-1 (FR+) - G5-1 Always Below 1 Ω E6-5 (FR-) - G5-2 Always Below 1 Ω

   4. Measure the resistance between each of the rear speakers and the navigation receiver assembly to check for an open circuit in the wire harness.

      Standard resistance
      Tester Connection Condition Specified Condition E7-2 (RL+) - K1-1 Always Below 1 Ω E7-6 (RL-) - K1-2 Always Below 1 Ω E7-1 (RR+) - J1-1 Always Below 1 Ω E7-3 (RR-) - J1-2 Always Below 1 Ω

   5. Measure the resistance between each speaker and body ground to check for a short circuit in the wire harness.

      Standard resistance

      Tester Connection Condition Specified Condition E6-2 (FL+) - Body ground Always 10 kΩ or higher E6-6 (FL-) - Body ground Always 10 kΩ or higher E6-1 (FR+) - Body ground Always 10 kΩ or higher E6-5 (FR-) - Body ground Always 10 kΩ or higher E7-2 (RL+) - Body ground Always 10 kΩ or higher E7-6 (RL-) - Body ground Always 10 kΩ or higher E7-1 (RR+) - Body ground Always 10 kΩ or higher E7-3 (RR-) - Body ground Always 10 kΩ or higher

   
   
   • OKClick here
   • NGClick here
2. Click here

   INSPECT FRONT NO. 1 SPEAKER

   
   

   1. Resistance check

      
      

      1. Measure the resistance between the terminals of the speaker.

         Standard resistance
         Tester Connection Condition Specified Condition H5-1 - H5-2 Always Approximately 4 Ω G5-1 - G5-2 Always Approximately 4 Ω

         Note:

         The speaker should not be removed to check resistance.

   
   
   • OKClick here
   • NGClick here
3. Click here

   INSPECT FRONT NO. 2 SPEAKER

   
   

   1. Check that the malfunction disappears when another speaker in good condition is installed.

      Standard
      Malfunction disappears.

      Tip:
      

      • Connect all the connectors to the front No. 2 speaker.

      • If there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.

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

   
   
   • OKClick here
   • NGClick here
4. Click here

   INSPECT REAR SPEAKER

   
   

   1. Resistance check

      
      

      1. Measure the resistance between the terminals of the speaker.

         Standard resistance
         Tester Connection Condition Specified Condition K1-1 - K1-2 Always Approximately 4 Ω J1-1 - J1-2 Always Approximately 4 Ω

         Note:

         The speaker should not be removed to check resistance.

   
   
   • OKClick here
   • NGClick here
5. Click here

   PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLEClick here

6. Click here

   REPAIR OR REPLACE HARNESS OR CONNECTOR

7. Click here

   REPLACE FRONT NO. 1 SPEAKERClick here

8. Click here

   REPLACE REAR SPEAKERClick here

9. Click here

   REPLACE FRONT NO. 2 SPEAKERClick here