Originally Posted by Euro925

when you ask if someone's done it to a 98-99, does that mean its already been done for a 97?

Originally Posted by AznX TL

the only problem i foresee is that the new keys are like blocks, opposed to traditional keys with teeth.

but the transmitter should be do able with some trimming and resoldering.

Originally Posted by iansanderson

the 04-?? RL uses the same key style as our cars do with immobilizer.. not 100% if the length is the same, but the teeth and style are the same.. The 04 RL's are not like the accords/tl's with the block style. hmm, i need to check the FCC database on the frequency.

Originally Posted by AznX TL

98-99 have immobilizer chips. but 97's dont.

Originally Posted by Euro925

so that means that the key can be used for a 97? but the remote may not be compatible?

Originally Posted by MJL

This is a guide on how to do a TL key conversion with your current Honda Key. It will show you how to disassemble, transfer the immobilizer chip and program the remote for the remote locks. I was lucky enough to find out my dealer would cut the key for me, which they actually did for free. I was prepared to use the method members on an RSX forum used before I found out my dealer would cut my key for me. If you can't find a dealer of locksmith willing to cut your key blank for you then this link should help you if you want to transfer your key to the TL key fob.

http://forums..com/showpost.php?p=11...&postcount=127

Part Number: 35111-SEP-306

Key Comparisons:


TL Key Closeups:
Key 1
Key 2
Key 3

Key Partially Disassembled:


Next take NOTE of the spring position (indicated by red arrow below). This was the only snag in completing this for me. I couldn't remember the spring position when putting everything back together and had to refer back to pictures I had taken before I took it apart. After that there are three screws to remove to access the spring and key itself where the immobilizer chip is located. Before you begin with the screws make sure you have a quality, broad crosstip screwdriver for these screws. They are held very tightly with thread locker and if have a pointy or narrow phillips screwdriver you will most likely strip the heads.



Once you have the screws and cover off, take your spare honda key. Yes you need to use your spare as a donor for the immobilizer chip, but dont worry, once you are done you will still have 2 working keys. Remove the screw on the back and pop the cover off. Below is the location of the chip in your current key, under a small black cover. You will need to pry the chip out once you get the cover off. It is glued in, I sliced the side of the plastic off near the side of the chip to be able to get a small flathead in there to pry it out.



Once you have the chip out, set it aside and don't lose it. Now take your TL key and find the area with the rectangular cover, this is where the chip is located, and remove the cover. You will see that getting this chip out isn't as easy as the other one. I flipped the key over and drilled a small hole on the opposite side of the chip to be able to push it out, making sure to only drill a small depth so that I wouldnt damage the chip (even though I don't know why it would have mattered, its not the coded one, but still...).




Chips Are The Same:


Replace the chip with the coded one and put everything back together. Time to test it once everything is put back together. Make sure it works in all the locks and ignition, after you've transferred the chip it should start the car too, if you mixed the chips up and put the uncoded one back in your engine will just crank and not start.

To program the remotes for the lock feature do the following:

Insert one of your keys into the ignition (You will need all keys present to program them all at the same time, I'm not sure if you can simply add one in. Someone correct me if I'm wrong.)

Turn the key to the on position and all the way off to the point you can remove the key. Each time you turn to the on position, press the lock button on the remote. This needs to be done 4-5 times.

Once you locks actuate, you have entered the program mode. Simply press the lock button and each remote to program each one. Remove the key and test each one. If they don't work repeat the procedure again.

DISCLAIMER: Try this mod at your own risk. I will not be held responsible for any damage done while anyone is attempting this mod.

Originally Posted by Marc08EX

This is not much different from jayknight's original DIY. Credit to him for doing it originally and providing much needed assistance.


1) Disassemble OEM key fob.
2) Disassemble inner plastic enclosure. (also shown in picture above; the one with the Siemens label) When disassembled, you should have front cover, buttons, circuit board, battery and back cover.
3) Do the same thing to the 09 TSX switchblade key fob. http://www.driveaccord.net/forums/sh...5&postcount=12 (Taken from LRP_Accord's post)
4) Now you have the 2 most important pieces of this conversion. The TSX circuit board (left) and the Accord circuit board (right). It is shown below:

5) The main goal is to move the lock, unlock, trunk and LED (optional) components to align to the positions located in the TSX circuit board. Image is shown below:

6) Remove the switches for lock, unlock and trunk. If you want your LED to function, remove this as well.
7) Solder wires to the removed switches and LED.
8) Place the components in the right location making sure that there's an insulation material in between the component and the circuit board to avoid shorting.
9) Cut wires to appropriate lengths and solder it to where it was originally placed.
10) Steps 8-10 will have to be done in different sequences. Use common sense.
11) The picture below shows what it should look like at the end: (Another solution is from jayknight's link: http://www.driveaccord.net/forums/sh...6&postcount=87)
12) Trace out the trunk lining from the white plastic cover of the TSX key fob shown below:

13) Remove TSX immobilizer chip which can be read from this link: http://www.driveaccord.net/forums/sh...ht=switchblade
14) Make sure everything works. Test it out. If it works, reassemble everything back together.
15) DONE! Enjoy your custom TSX key.

*** DISCLAIMER: Do this mod at your own risk. You will be held responsible for your own actions. GOOD LUCK!

Originally Posted by ajbent86

I started looking into a TL switchblade key swap several months ago. I ended up just letting it go realizing that it will be almost impossible to get the keyless entry to function correctly.

Originally Posted by 97BlackAckCL

Someone tried the board swap with a TL remote and said the board wouldn't fit anyone remember who that was?

Originally Posted by AznX TL

it seems you're right, the cl board is slightly bigger than the 2009 tsx switchblade key, and the the accord's key. but who knows about the rl's key.