Caution / Notice / Hint

WARNING: This page is about a different car, the 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, and 2019 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

A lack of engine power occurs when the throttle valve is malfunctioning or when there is a clog in the intake or exhaust system. Therefore, during the inspection, confirm that there are no clogs in any parts.

HINT:

If the throttle valve is malfunctioning, even if the accelerator pedal is fully depressed when the engine is running, the throttle does not fully open.
If there is a clog in the intake system, even if the accelerator pedal is fully depressed, value for MAP in the Data List is not the same as the atmospheric pressure.

When performing this inspection on a vehicle equipped with VALVEMATIC, perform the following procedures first in order to confirm that there are no VVT system malfunctions.

Perform VVT system Active Test and confirm that the VVT follows the VVT target.
If the VVT system Active Test results are normal, perform VALVEMATIC system Active Test.

NOTE:

When the vehicle is not equipped with VALVEMATIC, even if the VVT system inspection (the inspection that checks if idling becomes unstable when changing the VVT to the most advanced and retarded positions through the Active Test) is performed, it cannot be determined that the malfunction is in the VVT system.