Check voltage between BOSE amp. harness connector and ground.
Signal name
| Connector No.
| Terminal No.
| Ignition switch position
| Voltage (Approx.)
|
Battery power supply
| B16
| 11
| OFF
| Battery voltage
|
Is the inspection result normal?
YES
>>GO TO 3.
NO
>>Check harness between BOSE amp. and fuse.