BOSE Speaker Amp.

1. Check that the following fuses are not blown:

   Terminal No.	Signal name	Fuse No.	Capacity
   10	Battery power supply	44	15A
   11		45	15A

Are the fuses blown?

YES>>

Replace the blown fuse after repairing the affected circuit.

NO>>

GO TO 2.

1. 1. Disconnect Bose speaker amp. connector.
   2. Check voltage between Bose speaker amp. connector and ground.

      Bose speaker amp.		Ground	Voltage(Approx.)
      Connector	Terminal
      M178	10	-	Battery voltage
      	11

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connectors.

1. 1. Ignition switch OFF.
   2. Check continuity between Bose speaker amp. connector and ground.

      Bose speaker amp.		Ground	Continuity
      Connector	Terminal
      M178	7	Ground	Yes
      	12

Is the inspection result normal?

YES>>

Inspection End

NO>>

Repair or replace harness or connectors.