Hona 6 Report post Posted January 14, 2021 Hi everyone. I have been trying to fix the lights on my wife's 1998 E39 540i for a while now without any success. They were working fine, then one day they started flashing intermittently and doing other things as well. Indicators stopped working, and drive lights come on when I start the car. None of the switches (light, indicators) affect this situation. I pulled the LCM 2 out and sent it to get checked out at 'Anything Electronic' and they found nothing unusual with the LCM 2. I placed the LCM 2 back into the car, and the lights worked for a month, and then the problem returned. I live 60 km from the nearest big town, so I have tried to find and fix the fault myself. I don't like to drive the car while it is like this. Today I am going to check the breakout box under the driver seat. All the fuses are good. My thoughts are, the LCM 2 may still be faulty. An alternative is to get another LCM 2 and code it from the one I have currently. If anyone has had a similar issue, I would appreciate some feedback. One other thing, the heater comes on when the car is started. I have read information regarding the LCM 2 affecting other things beside the lights. Anyhow, kind regards. 1 Quote Share this post Link to post Share on other sites
Driftit 2093 Report post Posted January 15, 2021 @promo is this something you could help with? Pramod recently fixed my FRM module which controls the lights in my E87. If he doesn't reply here send him a PM. 1 Quote Share this post Link to post Share on other sites
promo 93 Report post Posted January 15, 2021 Definitely can help. E39 have LCM. If you get a second hand module I can code it Quote Share this post Link to post Share on other sites
adro 1084 Report post Posted January 15, 2021 (edited) I have an LCM III from a 2000 540. Pretty sure forwards compatible just not backwards (as in it will work on your older car) $50 if you are interested. Edited January 15, 2021 by adro Quote Share this post Link to post Share on other sites
