On Toyota automobiles, engine codes indicate various car problems, ranging from tiny problems to major failures; next, diagnostic scanners determine the precise error. After the problem has been resolved, the engine code may need to be manually cleared out. Doing so requires a bit of simple vehicle maintenance.
Procedure
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- Turn off the engine. Let it cool before doing any work.
- Open the hood.
- Locate the car’s battery. Its exact location will vary depending on the make and model of your Toyota, but its usually in one of the four corners of the engine.
- Turn the wrench so that it secures the negative battery clamp to the Toyota battery.
- Loosen the bolt so that the negative battery clamp can be easily removed.
- Remove the negative battery clamp.
- Wait 60 seconds.
- Return the negative battery clamp to the battery, tightening it with the wrench.
- Start the vehicle. The “check engine” light and engine code will now be off.
Note:
- For all Toyotas released prior to 1996, use an OBD-i scanner; for newer cars, use the OBD-ii device.