Toyota Corolla (E120): Evaporative emission control system leak detected

Inspection procedure

Circuit description

Other materials:

Brake
Preparation Sst Recomended tools Equipment Lubricant ...

Monitor description
The battery supplies electricity to the ecm even when the ignition switch is off. This electricity allows the ecm store data such as dtc history, freeze frame data, fuel trim values, and other data. If the battery voltage falls below a minimum level, the ecm will conclude that there is a fault ...

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 ...