Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Combination meter / Warning buzzer does not sound (key reminder
warning, light reminder warning)
Toyota Corolla (E120): Warning buzzer does not sound (key reminder warning, light reminder warning)
Wiring diagram

Inspection procedere
1 Check buzzer
- Check that all of the warning buzzers sound.



2 Inspect front door courtesy lamp switch assy


3 Inspect un–lock warning switch assy


4 Check harness and connector(between un–lock warning switch and combination meter assy)


5 Check harness and connector(between courtesy lamp switch and combination meter assy)


Check and replace combination meter assy
Other materials:
Air bag sensor front lh
Components
Replacement
Hint: components:
1. Precaution
2. Disconnect battery negative terminal
3. Remove air bag sensor front lh
Disconnect the connector from the airbag sensor front
lh.
remove the 2 bolts and airbag sensor front lh.
4. Inspect air bag sensor front lh
...
Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm:
● Unlock the doors or open the trunk.
● Vehicles without a smart key system:
Turn the engine switch to the “ACC” or “ON” position, or start the engine. (The
alarm will be deactivated or stopped after a few seconds.)
& ...
Key confinement prevention function does not work
properly (unlock warning switch circuit)
Circuit description
The unlock warning switch turns on when the key is inserted in the ignition
key cylinder and the door courtesy
switch turns on when the driver’s door is opened, and the integration relay
monitors both switches conditions.
According to these switches conditions, the int ...


