FOB Key re-syn

[panna]

Hi sifus,

I had change my 2 keys battery due to end of life (kong). Then I start to re-syn both keys and it manage to syn but

1) Syn key A , key B cannot work
2) Resyn key B, key B cannot work

Pls help. Thanks

 

[digilife]

Wat year is your E46 ?

One of my E46 key also having problems which I believed was due to the fact that the battery is not charging anymore in the EWS antenna ring when in use.

I made a new key, but this is where my problem starts........

Now my keys cannot start my car, it can only be able to start when the EWS Fault code is cleared via an OBD scanner ......

Is it possible to Delete / Bypass EWS to overcome no-start problem in E46 ?

Downside to this will do away the anti-theft system .

Reason to wanna bypass is because since after making a new key, the EWS seems screw up & it need to do a "clear EWS Fault scan" via a OBD2 Scanner only can start the car.

 

[panna]

Mine is 2001 E46 Coupe.

Both is charging and both are my original keys. The problem is I could not use remote to open the door but still can start the car. Thanks

 

[jarance]

Hi sifus,

I had change my 2 keys battery due to end of life (kong). Then I start to re-syn both keys and it manage to syn but

1) Syn key A , key B cannot work
2) Resyn key B, key B cannot work

Pls help. Thanks

BTW, how did you sync both keys? One at a time or one after another.

Look at step 2), your key B is broken. Keep it as energency to open the door and start the car when you loose key A.

 

[jarance]

Wat year is your E46 ?

One of my E46 key also having problems which I believed was due to the fact that the battery is not charging anymore in the EWS antenna ring when in use.

I made a new key, but this is where my problem starts........

Now my keys cannot start my car, it can only be able to start when the EWS Fault code is cleared via an OBD scanner ......

Is it possible to Delete / Bypass EWS to overcome no-start problem in E46 ?

Downside to this will do away the anti-theft system .

Reason to wanna bypass is because since after making a new key, the EWS seems screw up & it need to do a "clear EWS Fault scan" via a OBD2 Scanner only can start the car.

You need to program the EWS to accept new key. Google for more info.

 

[panna]

BTW, how did you sync both keys? One at a time or one after another.

Look at step 2), your key B is broken. Keep it as energency to open the door and start the car when you loose key A.

Hi Jarance,

I did it one after another.

Sorry typo error, it shud be:

1) Syn key A , key B cannot work
2) Resyn key B, key A cannot work
3) Resyn key A, key B cannot work.

Thanks

 

[jarance]

Hi Jarance,

I did it one after another.

Sorry typo error, it shud be:

1) Syn key A , key B cannot work
2) Resyn key B, key A cannot work
3) Resyn key A, key B cannot work.

Thanks

Can you give detail on the resyn procedure. It seem that you may have missed out a step as both key seem to work when it is resyn first.

Did the door lock respond when you did both the keys (one after another).

 

[digilife]

You need to program the EWS to accept new key. Google for more info.

Sent my car to the "Wireman" it was solved within 60mins, reason was that the ignition switch was faulty , he managed to repair the fault. I strongly believed that some sort of relay was rectified by this guy. The EWS & new key transponder chip was programmed during the key duplication process.

 

[jarance]

Sent my car to the "Wireman" it was solved within 60mins, reason was that the ignition switch was faulty , he managed to repair the fault. I strongly believed that some sort of relay was rectified by this guy. The EWS & new key transponder chip was programmed during the key duplication process.

Never expect the ignition switch to be faulty. Thank for the update. cheer.

 

[jarance]

BTW, I just reliaze that you can check with a BMW Scanner why you cannot start the car.

 

[digilife]

BTW, I just reliaze that you can check with a BMW Scanner why you cannot start the car.

Wow, nice interface, how much you bought this scanner ? I am interested to have 1 myself so that I can do my own diagnostic .

Regarding the scanning, I duplicated the key at the locksmith shop and it was all fine during that time, The problem starts when I reached home, I cant restart the car at my home I need to ask the locksmith to come over to my house to see wat was wrong with it, He brought along a scanner [ I duno what scanner was that, it was in a brief-case like thingy ] with many types of cables & one of it fit my OBD2 port. He done a scan and a few faults appear, he helped me to clear most of it , Once that EWS Fault was cleared, my car was able to start , first the air-cond came on, then the dashboard indicators came to life, one turn on the key starts the engine. He then told me to look for a wireman to check the problem.

I also noticed that if I off the engine & try to restart, it also wont start, however when I step on the brake paddle & move the gear shift from P > R >N > D > P > D, it would trigger the air-cond indicator to come alive [On] , and the dashboard indicators would light up & my car will be able to start again..........

I told the Wireman all these signs & symptoms & within 60mins he called me that my car have been fixed, Damage = rm80.00.

 

[panna]

Can you give detail on the resyn procedure. It seem that you may have missed out a step as both key seem to work when it is resyn first.

Did the door lock respond when you did both the keys (one after another).

Hi Jarance,

This is the procedure I did:

1) Closed the door
2) Put in the key inside the lockset
3) Turn on and off 5 times and take out
4) Press hold onto open button and press lock button 3 times

 

[jarance]

Wow, nice interface, how much you bought this scanner ? I am interested to have 1 myself so that I can do my own diagnostic .

Regarding the scanning, I duplicated the key at the locksmith shop and it was all fine during that time, The problem starts when I reached home, I cant restart the car at my home I need to ask the locksmith to come over to my house to see wat was wrong with it, He brought along a scanner [ I duno what scanner was that, it was in a brief-case like thingy ] with many types of cables & one of it fit my OBD2 port. He done a scan and a few faults appear, he helped me to clear most of it , Once that EWS Fault was cleared, my car was able to start , first the air-cond came on, then the dashboard indicators came to life, one turn on the key starts the engine. He then told me to look for a wireman to check the problem.

I also noticed that if I off the engine & try to restart, it also wont start, however when I step on the brake paddle & move the gear shift from P > R >N > D > P > D, it would trigger the air-cond indicator to come alive [On] , and the dashboard indicators would light up & my car will be able to start again..........

I told the Wireman all these signs & symptoms & within 60mins he called me that my car have been fixed, Damage = rm80.00.

The scanner is very cheap. read up on my thread for BMW Scanner 1.4.0

http://www.bmwclubmalaysia.com/newforums/index.php?/topic/23997-feedback-on-bmw-scanner-140/?hl=bmw%20scanner

try Aliexpress or places in China to purchase. They are much cheaper now compare to the time when I first bought it.

 

[jarance]

Hi Jarance,

This is the procedure I did:

1) Closed the door
2) Put in the key inside the lockset
3) Turn on and off 5 times and take out
4) Press hold onto open button and press lock button 3 times

The correct step is as follows:-

1. Sit in the car with all the doors shut and windows up with your key fobs (all your fobs need to be done at the same time)
2. With one of your keys turn the ignition on (position 1) then off and remove the key
3. Press and hold the unlock botton and then press the lock button 3 times of key A.
4. Release all buttons and the door locks will bounce up and down.
5. Repeat step 3. with the key B (within 10 seconds)-(press and hold unlock and press lock 3 times, locks will bounce)

Note: Only switch your ignition on once, doing so again while programming will reset the process and you will have to start again.

 

[jarance]

Here is what the Web say:-

 

[tweiboon]

Hello to all my friends here, for the bmw cars using EWS, the remote will not deal with EWS at all. Resync is only for remote not for start engine. Start engine function only can be done by using machine to program or in simple way we can say is by programming.

If both keys cannot use at the same time normally is the problem of Amplifier Antenna. This problem happened can be due to Amplifier Antenna board mulfunction of the socket which connect the GM5 having little problem.

If both keys cannot use not at the same time meaning both of your keys having problem.

Come to Puchong meet me yam cha i can check for you on the sport. My Whatsapp is 016 3953826. I am doing all this kind of checking FOC for very long time. Many of our members also helping each other checking their car FOC.

 

[jarance]

What tweibon is saying is this:-

GM5 module control the remote operation of the doors as well as the windows. The antenna is located at the window and there is a diversity amplifier which act as antenna for radio and also antenna for the remote key and also the demister for the rear windscreen.

EWS module control the starting of the car via the antenna ring located at the ignition key. It also charge the key when it plug in.

 

[tweiboon]

What tweibon is saying is this:-

GM5 module control the remote operation of the doors as well as the windows. The antenna is located at the window and there is a diversity amplifier which act as antenna for radio and also antenna for the remote key and also the demister for the rear windscreen.

EWS module control the starting of the car via the antenna ring located at the ignition key. It also charge the key when it plug in.

Thumbs up bro.

 

[kw930]

The scanner is very cheap. read up on my thread for BMW Scanner 1.4.0

http://www.bmwclubmalaysia.com/newforums/index.php?/topic/23997-feedback-on-bmw-scanner-140/?hl=bmw%20scanner

try Aliexpress or places in China to purchase. They are much cheaper now compare to the time when I first bought it.

Lazada also selling a lot now, ranging RM50-70 you can get lot of choices :
http://www.lazada.com.my/catalog/?q=bmw+scanner+1.4

 

[OldmanBM]

For Bro Tweiboon and Bro Jarance as they are always ready to help