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When the light comes on it's telling you to read the engine diagnostic codes.
Depends on which light you are referring to. The "Check Engine" light comes on when there is a problem with the emissions system. The "Maintenance Required Light" comes on when scheduled maintenance is required as outlined in your owners manual.
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If the VSC flashing light comes on at the same time on your Toyota Corolla, then there might be a sensor issue, and if you have a warranty, have it back to the manufacturer.
Engine check light comes on, and you have the codes read.
go to auto zone and have them check it for you. its free
Every vehicle has warning lights to inform the driver of things going on. The check engine light comes on because there is something going wrong with the engine.
my engine came on when i still have 30 miles from home on my 2000 toyota avalon
remove the efi fuse for 1 minute if the light comes back on you have a problem
Disconnecting the battery cable for a few minutes will reset the check engine light. If the light comes back on you will have to get the issue fixed or it will keep coming on.