Woofer AMP On Signal Circuit

WOOFER AMP. ON SIGNAL CIRCUIT


Description

When the audio system is turned on, a voltage signal is supplied from the BOSE amp. to the woofer. When this signal is received, the woofer will turn on.




WOOFER AMP. ON SIGNAL CIRCUIT


Diagnosis Procedure

1.CHECK CONTINUITY WOOFER AMP. ON SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BOSE amp. connector and woofer connector.
3. Check continuity between BOSE amp. harness connector and woofer harness connector.





4. Check continuity between BOSE amp. harness connector and ground.





Is inspection result OK?
YES - GO TO 2.
NO - Repair harness or connector.
2.CHECK VOLTAGE AMP. ON SIGNAL
1. Connect BOSE amp. connector
2. Turn ignition switch ON.
3. Check voltage between BOSE amp. harness connector and ground.





Is inspection result OK?
YES - Replace woofer.
NO - Replace BOSE amp.