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How to read error codes without a scanner on the Kymco Downtown 300i

Model: Kymco Downtown 300i
Part: Onboard computer

Video tutorial

In this video, we see how to read error codes on the Kymco Downtown 300i without needing a scanner. Specifically, this model has been designed with issues that generate errors related to the TPS sensor, MAP sensor, and idle valve.

We see the engine light come on. Depending on the number of times it blinks, it signals the error that will then appear on the display; half-second blinks represent single units, while one-second blinks represent tens. The errors 06 - 09 and 49 are then indicated in sequence.

To clear the errors, we need to turn the key, count to ten, accelerate for ten seconds, and then decelerate for five. This will make the light disappear.


Posted on 8 August 2025 by ScegliAuto


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Watch the video!


by ScegliAuto

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