How to Fix KEYDIY KD TDB03-3 Remote Generation Failure on KD-X2?

June 12, 2026 uobdii Car Key Programmer 0

The Problem

A user recently ran into an issue while trying to generate a second Avensis F433 key using KEYDIY KD-X2 Remote Maker and KD TDB03-3 (Silver Gray) remote key. While the first key generated perfectly, the second one failed with an “Unable to recognize!” error.

Symptoms:

  • The key can be read withoutthe battery inside.
  • With the battery installed, the remote becomes completely unresponsive: no red indicator light blinks, no frequency is detected, and buttons do not respond.

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The Solution

The trick to solving this issue lies in the timing of when you insert the battery during the wireless generation process. Follow these simple steps:

1.Remove the battery from uobdii.com KD TDB03-3 remote before you begin.

2.Place the battery-less remote onto the detection area of your  KEYDIY KD-X2.

3.On the KD-X2, navigate to: Remote Function ➡️ Car Remote ➡️ Select your specific car model ➡️ Generate ➡️ Wireless Generate.

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4.The Secret Step: Once the process starts, slide the battery into the remote just halfway (about half a centimeter).

5.Wait for the loading bar to finish. The remote will now generate successfully!

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Tech support:

Email: Sales@UOBDII.com

WhatsApp: +86-13995696053

www.uobdii.com

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