If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections.



Caution
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
Fuel and battery fumes are flammable.
Caution
When working near the electric cooling fans or radiator grille
Vehicles without a smart key system
Be sure the engine switch is off. With the engine switch in the “on” position, the electric cooling fans may automatically start to run if the air conditioning is on and/or the coolant temperature is high.
Vehicles with a smart key system
Be sure the engine switch is off. With the engine switch in ignition on mode, the electric cooling fans 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.
HoodDtc check / clear
Check dtc
Connect the intelligent tester to the dlc3.
Turn the ignition switch on and turn the tester on.
Select the following menu item: body / sliding roof /
dtc.
Check the dtc(s).
Clear dtc
Connect the intelligent tester to the dlc3.
Turn the ignition switch on ...
Air fuel ratio sensor
Components
On-vehicle inspection
Check air fuel ratio compensation system
Connect the intelligent tester to the dlc3.
Turn the ignition switch on.
Select the following menu items: data list / a/fs b1
s1 and o2s b1 s2.
Warm up the a/f sensor with the engine speed at
2,500 ...
Basic repair hint
Hints on operations
1
Attire
Always wear a clean uniform.
A hat and safety shoes must be worn.
2
Vehicle protection
Prepare a grille cover, fender cover, seat cover and floor mat
before starting the
operation.
3
Safe opera ...