Owner's Manual
Table Of Contents
Toyota Corolla
11/11
Troubleshooting Guide
Symptom Possible Cause Remedy
1 System will not turn on Missing or blown fuse at the battery Insert or replace fuse
Radio’s Remote Turn-On wire may be
disconnected.
Verify that Remote Turn-On wire is
connected.
2 Volume is too loud with
aftermarket headunit.
Speaker level out is connected at the
T-Harness.
Ensure that the low level RCA adapters are
used in aftermarket headunit system (refer
to the corresponding wiring diagram).
Ampliers gain control has not been
properly adjusted.
Refer to the corresponding system diagram.
3 Subwoofer sounds very low. Gain level may be down to the lowest
setting.
Adjust level to reccommended setting (refer
to the corresponding wiring diagram).
Audio Phase may be reversed. Ensure that the PHASE is set to 0˚.
4 One of the speakers has no
sound.
Disconnected pin or loose connection. Check all connections to the speaker, loose
pins, disconnected terminals etc..
5 Airbag light is on Failed to disconnect the battery while
working on the vehicle.
Disconnect the battery and re-connect
after 5 minutes. If problem is not solved,
the vehicle will have to be taken to a Toyota
dealer.
6 System turns on only on
radio source
Aftermarket Power Antenna wire is
connected to amp
Connect the Remote Turn-On wire (Blue/
White) to the Blue wire on the amplier
harness.