Toyota Corolla (E120): Catalyst system efficiency below threshold

Inspection procedure

Circuit description

Other materials:

On–vehicle inspection
1. Inspect drive belt Visually check the belt for excessive wear, frayed cords, etc. If any defect is found, replace the drive belt. Hint: cracks on the rib side of a belt are considered acceptable. If the missing chunks from the ribs are found on the belt, it should be replaced. 2 ...

Have the malfunction repaired immediately. (vehicles with a smart key system)
After taking the specified steps to correct the suspected problem, check that the warning message and light go off. ■Warning buzzer ...

Clutch
Preparation Sst Recomended tools Equipment Lubricant ...