Toyota Corolla Owners Manual: Warning lights and indicators
The warning lights and indicators on the instrument cluster and center panel inform the driver of the status of the vehicle’s various systems.
For the purpose of explanation, the following illustration displays all warning lights and indicators illuminated.
► Vehicles with a drive monitor display
► Vehicles with a multi-information display
The units used on the meters and some indicators may differ depending on the target region.
Warning lights
Warning lights inform the driver of malfunctions in the indicated vehicle’s systems.
*1: Vehicles without a smart key system:
These lights turn on when the engine switch is turned to the “ON” po ...
Other materials:
Lubrication system
On–vehicle inspection
1. Check engine oil level
after warming up the engine and then 5 minutes after the engine
stops, oil level should be between
the ”l” and ”f” marks on the oil level gage.
If low, check for leakage and add oil up to the ”f” mark.
Notice:
do not fill with engi ...
Seat belt warning lamp for driver’s seat does not
operate
Wiring diagram
Inspection procedure
1 Check combination meter assy
Ground terminal c9–12 on the combination meter side.
check that the warning lightlights up.
Ok: warning light lights up.
2 Inspect front seat inner belt assy lh
Disconnect the front seat inner belt as ...
Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located
before and after the catalyst
to determine whether or not the catalyst performance has deteriorated.
Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen
sensor in front of the catalyst
alternate ...