Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Audio system / Sound quality is bad only when playing tape
Toyota Corolla (E120): Sound quality is bad only when playing tape
Inspection procedure
1 Replace cassette tape with another and recheck
- Replace the cassette tape with another and recheck.
- Replace the faulty cassette tape with the normal one to see if the
same trouble occurs again.
Standard: malfunction disappear.
2 Check for any foreign object
- Check for foreign object.
- Check that no foreign material and troubles are detected in the radio receiver assembly cassette tape player.
3 Clean head and check operation
- Head cleaning
- raise the cassette door with your finger. Next, using a pencil or similar object, push in the guide.
- Using a cleaning pen or cotton applicator soaked in cleaner, clean the head surface, pinch rollers and capstans.
- Check that the same trouble occurs again.
Check and replace radio receiver assy
Other materials:
Inspection procedure
1 Reconfirm dtc
Check the dtc
2 Inspect skid control ecu connector securely connected
3 Inspect skid control ecu connector(ig1 terminal voltage)
In case of using hand–held tester:
check the voltage condition output from the ecu displayed on the
hand–held tester.
O ...
Checking the messages
1 Display the “Message Inbox” screen.
2 Select the desired message from the list.
3 Check that the message is displayed.
1 E-mails: Select “Mark Unread” or “Mark Read” to mark mail unread or read on
the message inbox screen.
This function is available when “Update Message Read S ...
Bluetooth®
■When using the Bluetooth® audio system
●In the following situations, the system may not function.
• The portable player does not support Bluetooth®
• The cellular phone is located outside the service area
• The Bluetooth® device is switched off
• The Bluetooth® device h ...