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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

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 10-26-2014, 09:09 PM
Pilot12 Pilot12 is offline
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Location: Buffalo
 
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Mein Auto: BMW 97 540i
help, reverse lights not working

I am going for an inspection and noticed my reverse light are not working, and i want to know is it from the reverse lights switch in the gearbox or LCM??? I have looked at wiring diagrams and the have reverse light going to LCM, but researching online i noticed most have problem with reverse lights switch. I have automatic trans by the way.
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  #2  
Old 10-27-2014, 09:29 AM
JimLev JimLev is offline
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Location: MA
 
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Mein Auto: 540/6, S60 Volvo, Tribeca
Have you checked the bulbs?
The wiring in the trunk to body flex boot could be broken.
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  #3  
Old 10-27-2014, 01:42 PM
Pilot12 Pilot12 is offline
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bulbs are good. how do i fix it if it is broken?
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  #4  
Old 10-27-2014, 01:55 PM
E39Hoon E39Hoon is online now
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Mein Auto: E39 528i
I'd say first check the bulbs. Then check your fuses.
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  #5  
Old 10-27-2014, 04:43 PM
Pilot12 Pilot12 is offline
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do you know the fuse number by chance or the location?

Last edited by Pilot12; 10-27-2014 at 04:49 PM.
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  #6  
Old 10-27-2014, 08:26 PM
edjack edjack is offline
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Mein Auto: '97 540i 6 speed
The external lights are not fused. They are controlled by the light control module.

JimLev may have an answer. Pull the gaiter back and check for broken wires. Most solder them back together, and insulate the connection.
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  #7  
Old 10-28-2014, 06:04 AM
Brodi816 Brodi816 is offline
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Mein Auto: 1997 528i
The lcm receives the reverse signal from the ike/kom(Instrument Cluster). Is your ike/kom showing the current selection (PRND) of the transmission, below the tach http://www.bimmerfest.com/forums/att...9&d=1265809593? If not then your ike/kom is not receiving the signal from the AGS(Automatic Transmission Control) or it's programmed for a manual transmission instead of automatic, which means it would not forward the signal to the LCM.

Last edited by Brodi816; 10-28-2014 at 06:10 AM.
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  #8  
Old 10-28-2014, 01:48 PM
Pilot12 Pilot12 is offline
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Brodi, I just noticed the (PRND) dont light up when i change gears which means you are right. Do you know of how to fix this issue?
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  #9  
Old 10-28-2014, 02:06 PM
Pilot12 Pilot12 is offline
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I found it! they finally worked! but with the old instrument cluster. so how do i get the new instrument cluster to work for the reverse lights?
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  #10  
Old 10-28-2014, 02:28 PM
Brodi816 Brodi816 is offline
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Your going to need to code your new instrument cluster for a automatic transmission. You can likely get a bmw mechanic to do it for a fee or code it yourself. I had to code a instrument cluster and BMW Scanner 1.4 worked fine for it. I used one of the imitation BMW Scanners on ebay with a odb to 20 pin adapter. Other bmw coding software will likely be able to do the same, but I have no experience with those yet so I don't want to comment on them. If this is for your 97 540i your going to need use the 20 pin round diagnostic port under the hood to do the coding.
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  #11  
Old 10-28-2014, 07:04 PM
Pilot12 Pilot12 is offline
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Alright, I will look into this. Thank you very much!
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