TRIED EVERYTHING but keyless entry wont work :(( - Bimmerfest - BMW Forums



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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 09-12-2019, 01:38 AM
singlered singlered is online now
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Location: Manila, PH
 
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Mein Auto: E39 523i
TRIED EVERYTHING but keyless entry wont work :((

Hi, guys.

I recently bought a beautiful E39 523i, and the first thing i wanted to make work was my keyless entry, and so i scoured this forum to try and make it work, but ive tried every single thing on here to no avail, its driving me crazy. Here are the things ive already done so far in order:

1. Tried reinitializing- key started blinking, but the car didnt respond.
2. Had a second key made- tried initalizing, same result.
3. Had the car scanned, no faults on GM module but
3. Discovered my fuel door actuator was busted, so replaced that right away.
4. plugged in a fresh fuse for fuse 53 and 48- the indicator under the rear view mirror finally lit up after this. proceeded to try reinitializing but still no response from the car.
5. Checked other fuses that could be related such as the immobiliser and central locking fuses in the glove box.

*Car locks and unlocks fine with interior button and manually using the key hole on the drivers side

Any ideas? I'm lost as to what's next because most posters on this forum get their keyless entry system working at this point (replacing fuses). Ive been told that the reciever unit could be at fault?

TIA!

Last edited by singlered; 09-12-2019 at 01:59 AM.
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  #2  
Old 09-12-2019, 01:32 PM
528iAut 528iAut is offline
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If doors do not lock and unlock after initializing you are not doing it right, maybe you have to hold the key closer to the rear view mirror? Rember, first do master key, then the other key, and this second key you do not have to put in the ignition.
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  #3  
Old 09-12-2019, 02:15 PM
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QSilver7 QSilver7 is offline
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Not revealing the actual steps you took to initialize (or post a link to the instructions you followed to initialize the remotes)...does nothing to give us any ideas if there was something skipped or done wrong in your failed attempts to reprogram your remote(s). A lot of people write that they "followed the steps"...only to find out that they actually didn't after being questioned to the actual steps they followed.

Remember to not fall into the trap that many fall into and fail:
  1. turn ignition to KL R (aka ignition position 1...position 0, position 2, position 3, or engine running will cause failed programming)
  2. ALL doors MUST BE CLOSED and
  3. ALL doors MUST BE UNLOCKED
...prior to the start of re-initializing the remote.


If everything you've tried so far still doesn't work (you've basically concentrated on the central locking (FZV) functions...you may want to start looking at the transmission/receiving side of things. And that would be to make sure that the correct RF (radio frequency) is being sent from your remote key (its either 315 MHz or 433 Mhz...you need to know this to make sure the key and car are able to communicate).

If the correct RF is being transmitted from the remote key...then make sure that the aerial (embedded in the rear windshield) is receiving the signal. There are receiver/amps in both C pillars that will send on the data from the key (FZV & DWA info) up to the GM. When the GM receives this data, then it sends it on to the central locking system (FZV) to lock/unlock the car....and onto the DWA system (to arm/disarm the anti-theft alarm siren system)...and also illuminate or turn off the flashing clown nose (red DWA status LED) located below the rear view mirror.
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Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 2013 F06 650ix Gran Coupe` (Black Sapphire) 1/13 mfg date
(SOLD)
97 740iL (Arctic Silver) <<~>> 99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

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Last edited by QSilver7; 09-12-2019 at 02:29 PM.
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  #4  
Old 09-12-2019, 06:50 PM
singlered singlered is online now
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Location: Manila, PH
 
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Hi guys. Im pretty sure i followed the initialization instructions to the t. Doors closed and unlocked, all windows closed, trunk and fuel lid also closed. Clicked the key to the first position, clicked it back and pulled it out, held it out close to the rearview mirror, held unlock and pressed lock thrice. The key blinked afterwards but the car didnt respond. Ive tried it several times, but it just wouldnt work. Im really at wit's end at this point.

All fuses have been checked and all busted ones have been replaced.

Any ideas on what specifically needs to be checked/done kn the recievers?
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  #5  
Old 09-13-2019, 10:39 AM
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QSilver7 QSilver7 is offline
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I'd move on to the receiving side of the system. Start with the connections on the rear windshield to make sure the antennas are sending data to the receivers in the C pillars. For our Touring/SAV/SAC owners...the FZV antenna is located in the left rear cargo window (see diagram below)





{#1 is the amp/trap circuit that sends FZV data up to the GM...check it and its connections}

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Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 2013 F06 650ix Gran Coupe` (Black Sapphire) 1/13 mfg date
(SOLD)
97 740iL (Arctic Silver) <<~>> 99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

https://www.bimmerforums.com/forum/attachment.php?attachmentid=637911&d=1538398374&thumb=1&stc=1
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