# 06 Mini battery changed and ONE key stopped working???? **URL:** \ **Category:** Shift518 Automotive\ **Created:** [February 16, 2012, 5:56am UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699 "2012-02-16T05:56:53Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid)\ **Post date:** [February 16, 2012, 5:56am UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699/1 "2012-02-16T05:56:53Z")
Remember a while back when I told the story about my buddy who brought his Mini to Sears on wolf rd, and they tried fucking him on an alignment and brakes when all he wanted was a battery, then drove his car into/through the closed garage door??!?! yeah will they replaced the battery that day and they keyless entry part (lock/unlock and trunk) stopped working on the key he used to drive the car there. The original key from 6 years ago (still had the OEM sticker on it) still works 100% fine. Its like when the battery was pulled it wiped one key. Only thing I can think is the key #1 has code ABC and key #2 has code DEF, the ecu is set with ABCDEF. When they changed the battery it lost ABC (maybe it was in the ignition or something)((he says the key battery charges while its in the ignition??? maybe it zaped it then?)) Second, is there a self set procedure to learn the key, or is it a dealer/scanner process? ---
**Author:** ![Neo187H](https://avatars.discourse-cdn.com/v4/letter/n/898d66/32.png) [@Neo187H](https://forums.speedlife.net/u/Neo187H)\ **Post date:** [February 16, 2012, 7:05am UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699/2 "2012-02-16T07:05:45Z")
I have no idea how it works on Minis but on older Mercedes MLs if you left the key in the ignition while replacing the battery it was very likely that the surge of connecting the new battery will wipe the electronics in the key destroying it. I wonder if something like that is possible with Minis? ---
**Author:** ![DARKHORSE02](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/darkhorse02/32/6729_2.png) [@DARKHORSE02](https://forums.speedlife.net/u/DARKHORSE02)\ **Post date:** [February 16, 2012, 8:37am UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699/3 "2012-02-16T08:37:36Z")
dealer. unless you know someone with the new autel scanner. it writes keys and does almost anything a dealer scanner does. and its only 2k. i want one bad!! ---
**Author:** ![indy440](https://avatars.discourse-cdn.com/v4/letter/i/b5ac83/32.png) [@indy440](https://forums.speedlife.net/u/indy440)\ **Post date:** [February 16, 2012, 8:51am UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699/4 "2012-02-16T08:51:55Z")
what ever happened with the whole disaster with sears? did they fix his car? ---
**Author:** ![SRS\_BZNS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/srs_bzns/32/6375_2.png) [@SRS\_BZNS](https://forums.speedlife.net/u/SRS_BZNS)\ **Post date:** [February 16, 2012, 9:13am UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699/5 "2012-02-16T09:13:49Z")
I remember my Audi someone had leaked how the dealers program the key fobs on the interwebs. Trying googling it. its usually stick key in door, follow button combination, car chirps and then you’re good ---
**Author:** ![97cavy](https://avatars.discourse-cdn.com/v4/letter/9/c5a1d2/32.png) [@97cavy](https://forums.speedlife.net/u/97cavy)\ **Post date:** [February 16, 2012, 11:19am UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699/6 "2012-02-16T11:19:18Z")
MIGHT work, might not 1. Close all doors 2. Switch to first on position (first click in the ignition), switch back off and remove the key. 3. Within 30 seconds, press and hold the unlock button and at the same time, press and release the lock button (3) times. (Must be completed within 10 seconds.) 4. Release both buttons, The doors will lock/unlock to signal a successful initialization. 5. If additional keys need to be initiialized, repeat steps 3-4 within 30 seconds 6. Switching the ignition to 1st position (first click) completes the initialization. ---
**Author:** ![JVG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jvg/32/6348_2.png) [@JVG](https://forums.speedlife.net/u/JVG)\ **Post date:** [February 16, 2012, 11:28am UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699/7 "2012-02-16T11:28:32Z")
if mini is like bmw which im sure it is there is a scanner process when replacing the battery for stupid shit like this. ---
**Author:** ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid)\ **Post date:** [February 16, 2012, 11:44am UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699/8 "2012-02-16T11:44:44Z")
We have a MAC Mentor, i guess its an expensive ass unit maybe it will program it if all else fails. Ill try the key idea Cavy said. thanks for the info so far guys. Ohh Sears settled out of court. He got the car fixed and shit paid for, nothnig on top becasue he didnt try really. ---
**Author:** ![97cavy](https://avatars.discourse-cdn.com/v4/letter/9/c5a1d2/32.png) [@97cavy](https://forums.speedlife.net/u/97cavy)\ **Post date:** [February 16, 2012, 11:54am UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699/9 "2012-02-16T11:54:50Z")
Yeah, from what i’ve found it might actually not work, but its worth a shot before taking it to the dealer and getting bent over ---
**Author:** ![PJB](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pjb/32/6389_2.png) [@PJB](https://forums.speedlife.net/u/PJB)\ **Post date:** [February 16, 2012, 5:08pm UTC](https://forums.speedlife.net/t/06-mini-battery-changed-and-one-key-stopped-working/262699/10 "2012-02-16T17:08:08Z")
[www.programmingmyremote.com](http://www.programmingmyremote.com) For some reason the keyless entry remotes stopped working on my dad’s Focus after taking it to the dealer to fix an electrical issue with the wiring. He programmed them in the driveway.