How to Clear Toyota Trouble Codes

Toyota engine codes need to be manually cleared.

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.

Difficulty:

Moderately Easy

Instructions

things you'll need:

• Wrench

1. • 1

     Turn off the engine. Let it cool before doing any work.

   • 2

     Open the hood.

   • 3

     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.

   • 4

     Turn the wrench so that it secures the negative battery clamp to the Toyota battery.

   • 5

     Loosen the bolt so that the negative battery clamp can be easily removed.

   • 6

     Remove the negative battery clamp.

   • 7

     Wait 60 seconds.

   • 8

     Return the negative battery clamp to the battery, tightening it with the wrench.

   • 9

     Start the vehicle. The "check engine" light and engine code will now be off.

Tips & Warnings

• For all Toyotas released prior to 1996, use an OBD-1 scanner; for newer cars, use the OBD-2 device.