Toyota Corolla (E210) 2019-2025 Owners Manual / Maintenance and care / Do-it-yourself service precautions
Toyota Corolla (E210): Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections.
Maintenance



WARNING
The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become electrically energized.
To avoid death or serious injury, observe the following precautions.
■When working on the engine compartment
- Keep hands, clothing and tools away from the moving fan and engine drive belt.
- Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driving as they may be hot. Oil and other fluids may also be hot.
- Do not leave anything that may burn easily, such as paper and rags, in the engine compartment.
- Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel and battery fumes are flammable.
- Be extremely cautious when working on the battery. It contains poisonous and corrosive sulfuric acid.
■When working near the electric cooling fan or radiator grille
Be sure the engine switch is OFF.
With the engine switch in ON, the electric cooling fan may automatically start to run if the air conditioning is on and/or the coolant temperature is high.
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt in the air.
Other materials:
How to register a Bluetooth® device
1 Display the “Bluetooth* Setup” screen. *: Bluetooth is a registered trademark
of Bluetooth SIG, Inc.
2 Select “Add”.
3 When this screen is displayed, search for the device name displayed on this
screen on the screen of your Bluetooth® device.
For details about operating the Bluetoo ...
Inspection procedure
Hint:
if dtc p0441 (purge flow), p0446 (vsv for ccv or vsv for pressure
switching valve), p0451, p0452
or p0453 is output with dtc p0442 or p0456 , first troubleshoot
dtc p0441, p0446, p0451, p0452 or p0453. If no malfunction is detected,
troubleshoot dtc
p0442 or p0456 next.
...
Circuit description
When driving uphill under cruise control, in order to reduce the number of
shifting due to on–off overdrive
operation and to provide smooth driving, when down shifting in the
electronically controlled transmission occurs,
a signal to prevent upshift until the end of the uphill slope is sent ...


