How To Fix Car Remote Control Buttons

Hi all,

Just as I suspected, the treatment by Hyundai ASS on my car key FOB battery drain issue did not work and as usual the battery drained completely in 4 days. So now with the spare key taken out of the picture, I had to search for options to repair my original FOB keypad. On searching, I found two options:

Option 1 (the one I opted for, later realizing option 2 was more economical and better):
http://www.ebay.in/itm/Hyundai-i20-K...item3f3ff24210

Option 2 (more economical and better because if you compare the two, boot opener button pad has missing text - 'hold' in option 1):
http://www.ebay.in/itm/PACK-OF-TWO-2...item418a8d4ef3

I would suggest that one should always keep a spare keypad in stock, because they might become obsolete/unavailable with new face lifted models being released almost every other year.

Now because I will be using two keys as references in my DIY below, let me define a glossary so that its easier to follow:

Key 1 - original key FOB with worn out keypads, the one that is being repaired.
Key 2 - lemon spare key FOB with battery drain issue.

Ok so shown below is Key 1 - the condition being primarily due to rubber quality used in the keypad worsened by the 'manicured' thumb nail of my wife which by default rests on the close keypad button when carrying in hands and occasional fiddling between the boot opener and close button. Alongside the key FOB is the purchased keypad from ebay.

Now, its very important to realize that using the key in such a condition poses danger to the IC circuit and sensor beneath the keypad, being exposed to dirt and water/moisture. So best option is to look at replacement of the keypad.

Pic below shows the only tool required for doing this job. The screwdriver blade should be thin enough to go in, without damaging the surrounding plastic of the key and should be wide enough to take out the keypad without tearing it out (in case you just want to clean the metal contacts underneath and replace the keypad after cleaning)

Now using the screwdriver, gently try to pull out the keypad as depicted in the pic below

In my case because of the extreme worn out condition of the keypad, it gave in, when being pulled out. The pic below shows the exposed metal contacts beneath the keypad frame.

Now ideally the keypad frame has to be taken out too, in order to fix the keypad jacket over it. It can also be removed in the same manner as the keypad using the screw driver. The pic below demonstrates that:

However, please note that it might not really be needed to do the above step. In my case I was easily able to nudge in the new keypad over the frame using my finger nails to slide in the edges of the keypad over the attached keypad frame. It was done in less than a minute. Avoided a lot of effort and time if removing the frame, fixing the keypad jacket over and then fixing back the frame. After sliding in the keypad, Key 1 looked as shown below. Key 1 is the left one and the Key 2 is on the right. Is there any difference you note? Yes there is one, check out the description of option 1 and option 2 mentioned above. But hardly makes a difference does it?

Lastly moved my LTD keychain from Key 2 to Key 1.

Key 1 is as good as new, and working like a charm.
Now, need to figure out how to get the Key 2 IC repaired in Bangalore. Pointers anyone?

References:

www.youtube.com/watch?v=LWo2RcemrLE

Cheers!

How To Fix Car Remote Control Buttons

Source: https://www.team-bhp.com/forum/diy-do-yourself/157776-diy-replacing-worn-out-rubber-buttons-keyless-entry-remote.html

Posted by: mixonkinces69.blogspot.com

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