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To reset the check engine light on a 2004 Toyota Sienna, you can disconnect the negative battery terminal for about 15 minutes. This will clear the engine codes and reset the light. Alternatively, you can use an OBD-II scanner to erase the codes directly from the car's computer. However, if the underlying issue causing the check engine light is not resolved, the light may come back on.

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2d ago

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You can either go to a mechanics shop to have the check engine light reset or you can do it manually by yourself. You will need to remove the negative battery terminal for 1 minute and then reconnect it.


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You can reset the check engine light on a Toyota by removing the battery cables and touching them together. Other than that, you will have to take the car to a mechanic and have them run a scan tool to turn the light off.


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Disconnect the negative battery cable for five minutes. This should reset the check engine light. But know that if you have not repaired the problem that set the light in the first place it will just come back on.


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