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:
Engine immobilizer system
The vehicle's keys have
built-in transponder chips
that prevent the engine from
starting if a key has not
been previously registered
in the vehicle's on-board
computer.
Never leave the keys inside
the vehicle when you leave
the vehicle.
This system is designed to
help prevent vehicle theft
but doe ...
Pre–check
1. Selecting compass display mode
the compass switch allows you to select the display or non–display
mode of the compass.
2. Setting zone
deviation between the ”magnetic north” and ”actual north” differs
depending on the location. Therefore,
adjustment of the ...
Circuit description
The rear heated oxygen sensor is used to monitor oxygen concentration in the
exhaust gas. For optimum
catalytic converter operation, the air fuel mixture must be maintained near the
ideal ”stoichiometric” ratio.
The heated oxygen sensor output voltage changes suddenly in the vicinity of ...