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 audio unit 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 audio unit connector and woofer connector.
3. Check continuity between audio unit harness connector and woofer harness connector.





4. Check continuity between woofer 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 audio unit connector
2. Turn ignition switch ON.
3. Check voltage between audio unit harness connector and ground.





Is inspection result OK?
YES - Replace woofer. Exploded View.
NO - Replace audio unit. Exploded View.