SUBWOOFER: Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK FUSE 

   Check that the following fuses are not blown.

   Terminal No.	Signal name	Fuse No.
   6	Battery power supply	58 (10A)

   Are the fuses blown? 

   YES: Replace the blown fuse after repairing the affected circuit.

   NO: GO TO 2.

2. CHECK POWER SUPPLY CIRCUIT 
   1. Disconnect subwoofer connector.
   2. Check voltage between subwoofer connector B73 and ground.

      Subwoofer		Ground	Voltage (Approx.)
      Connector	Terminal
      B73	6	-	Battery voltage

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness or connectors.

3. CHECK GROUND CIRCUIT 
   1. Turn ignition switch OFF.
   2. Check continuity between subwoofer connector B73 and ground.

      Subwoofer		Ground	Continuity
      Connector	Terminal
      B73	5	-	Yes

      Is the inspection result normal? 

      YES: Inspection End.

      NO: Repair or replace harness or connectors.