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-   -   Diamond key DIY HELP! (http://forum.e46fanatics.com/showthread.php?t=964616)

Aking23 01-08-2013 06:29 PM

Diamond key DIY HELP!
so iam in a bit of a headache right now. I did the diy for the diamond key upgrade from my old square key and i did everything from ordering two keys (one oem and the other just the case) swapping the internal from the oem one to the case getting it cut ($35) and then swapping in the chip. Everything works execpt the engine start. I guess its the chip haveing trouble talking to my car :censor:

Aking23 01-09-2013 12:14 AM

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So this is rhe way i put ny transponder chip inside my new key, and it still does not turn ny engine on. Ive programed the key to lock and unlock but not start thecar. If i take the chip out and put it into my orginal square key it works, but nothing works on my diamond key execpt the remote.

E46 Coupe 01-13-2013 10:22 PM

You have to remove the coil (bottom left of the circuit board) carefully without damaging anything else.
That in turn will remove the chip AND induction charging coil, so you will have to replace the rechargeable battery with a non rechargeable one.

It's not working because you cannot have 2 chips talking to the transponder ring at the same time.


Aking23 01-13-2013 10:35 PM

1 Attachment(s)
thanks for the reply man!

Yeaa i was noticing that when i decided to go in, i removed the 8 pin chip above the coil and well that sorda solved my no engine start issue, but in the whole process i think my sodering iron got the batter really hot and damaged it beacause now the remote feature is really glitchy. i did notice though when i took the 8 pin chip off there was a little wire going from the coil to the chip. Maybe that gave it power and then the power transfered from the chip to the battery?
(pics a bit dark but its the little silver wire going from the coil to where the chip was at)

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