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How to Reset the ECU and Engine Warning Light on the Toyota Yaris

Model: Toyota Yaris Xp90 - Years: 2005, 2006, 2007, 2008, 2009, 2010, 2011
Part: Warning light – error code

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Video tutorial

Today, in this brief and simple guide, learn how to reset the engine ECU and clear the engine fault light on the Toyota Yaris. First, open the bonnet and disconnect both battery terminals using a spanner; this will disconnect the ECU from the power supply, turning it off and performing a reset.

Wait a couple of minutes before reconnecting the battery; once reconnected, check if any errors have been cleared, but if not, a diagnostic tool will be necessary.


Updated on 27 September 2026 by ScegliAuto


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How to Remove the Rear Seat of a Hyundai Tucson?

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by ScegliAuto

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