By JohnWAugust 19, in E34 I started a thread the other day about my deadlocks having stuck on in my car. It now seems that that is just ONE Of it's symptoms! Someone mentioned a "general control" relay module-does it sound like this might be at fault? Are all these functions routed through the one module? Not sure if this applies-my car An early it doesn't have those links-that's where the coil is on my car M20 engine.
Tomorrow, I'm going to pull the relay and general modules and clean all the contacts! Thanks, but not much use TBH. Having looked extensively, I just cannot find any fusible links in my engine bay Wiring diagram says you have one. OK- following suggestions from elsewhere, I disconnected the battery, pulled both general module and relay pack, cleaned the connectors and replaced them. Reconnected the battery and The deadlocks released, the windows will open and the wipers are back to normal-it must have just been a dodgy connection!!
Only thing is EDIT: Just been out to the car again, and it's all failed again! At least the car is unlocked now but everything's not working again. I think I'm going to need to find replacement modules Now everything is dead again, maybe get the multimeter out and see if you have power to your rear fuse box?
Took out the relay module and resoldered it. Very similar to the LKM to do.
5 Common Symptoms of a Failing Body Control Module (BCM)
Put it back-all working again. Went out for a couple of hours and when I returned, nothing again! Got out the multimeter and there was full Remember Me? BMW Models. General Module Problem? Page 1 of 2 1 2 Last Jump to page: Results 1 to 25 of Thread: General Module Problem?
Thread Tools Show Printable Version. Hey guys, last night I had my car keys in my pocket when I sat down, which apparently triggered the panic alarm. When I tried to turn off the alarm I discovered that it would not take any commands from the key.
I forget how the heck I got the alarm turned off, but once I did, the lights were still flashing. After that the alarm went off again, and I finally managed to get it turned off, and get the car started.
However, now the wipers, interior lights, and central locking system are not working. The seats move to their memory position when I use the key though.
Anyway, in my searching around I came across some stuff about the General Module 3, and found that controls all of these items. It just seems weird that it would be working perfectly fine with no problems at all until this situation with the alarm. At first I was thinking it might also be related to the fact that I washed the car yesterday in the cold weather, and maybe something froze up in the door.
But after noticing the wipers are not working, I don't know if that is of any importance.
Diagnostic Flow Charts
Can anyone offer any insight here? Try disconnecting the battery cables and shorting them together, then turn the key to position for 10 min. After that turn key off and reconnect the battery. You are re-booting all of the modules.
It might fix your problem. Originally Posted by JimLev. Join Date Oct Location N. Indiana Posts 1, My Cars '02 i. If you can get your alarm to quit, go through the procedure for coding your keys to the car.
I know you said the seats still have their memory, but try re-linking your key to the car. Do you only have one set of keys? Yes, I did mean Pos 2, sorry.
Connecting the cables together and then with the key in 2 usually drains all the modules. Try over night, see if it helps.Discussion in ' E39 ' started by AngryE39Sep 26, Log in or Sign up. Light Control Module or Other Problem? Post Count: 42 Likes Received Vehicle: '01 E39 iA with k miles. Symptoms: While driving my car about 6 weeks ago, I noticed that my turn signals were not "blinking" on the dashboard, but the turn signals were on and not blinking on the exterior of my car.
The turn signals all started working again after a few miles. This past week, the alternator died. My indie BMW shop replaced the alternator with a remanufactured Bosch unit, replaced the related pulleys, tensionors, etc and the car ran fine.
The next day, my turn signals and emergency flashers stopped working during a 2 mile trip to lunch. This time, though, I had no turn signals on the dash or outside nor emergency flashers.
But, I swear I think the pixels in the instrument cluster were "pulsing" glowing brighter, then slightly dimmer at the same cadence as the blinkers would normally flash!?! Then the lights all started working again and the dash pixels stopped "pulsing" a half mile later, before I turned off the car. So on my way back from lunch I stopped by my mechanic's shop.
He plugged into the car's diagnostic system and ran a check for error codes and found none. He visually checked the battery and a few items under the hood, found no problems, pronounced the car ok and said I should just keep an eye on it, and sent me on my way. Question 1: Does the chain of events I have described intermittent flasher problems and dead alternator sound indicative of a bad LCM? I read something on another on-line DIY link that said a dealer had to "validate" or "initialize" a new LCM to the car or the car's computer would have some type of permanent error code, like a new odometer!?!
I would appreciate any feedback. Having owned a few British cars years ago, I am a little sensitive to intermittent problems with automobile electrical systems. Thank you. AngryE39Sep 26, Post Count: 56 Likes Received Seen something similar on my friend's E46 a few months ago. The root cause turned out to be shorting out of the fuel pump power circuit to fuel sender circuit.This is a repair service service of your existing module.
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Necessary Necessary. Non-necessary Non-necessary.View Cart Checkout. It streamlines the manufacturing and troubleshooting aspects of electronic modules by housing the modules into one, central unit instead of each function having its own device. It also coordinates the operating functions of many non-engine related ancillary items as well as security features. In certain instances, these items may not operate at all. A malfunctioning BCM will activate dashboard instrumentation cluster error and warning lights.
These lights may flash off and on if the BCM is not able to read the sensors correctly. Your vehicle performance may also be affected as the BCM communicates with other control modules in the vehicle.
Parasitic drain is due to components in your vehicle continuing to run after the key is turned off. Some parasitic drain is normal — your battery delivers enough energy to keep things like your clock, your radio presets and your security alarm operational. Sometimes, parasitic drain exceeds what is normal, and can cause car battery drain. In many cases, your BCM will alert you to issues with symptoms, warning lights or both. The key is to heed these warning signs, take prompt action and seek help.
Avoiding these warning signs or delaying taking action could cause further vehicle damage, or even a system-wide failure. BCM problems can also mask issues with other modules in your vehicle. In the event your BCM is beyond repair, we maintain an extensive inventory of new and remanufactured control modules to get you up and running quickly.
Contact us today to learn more about how we can help service your control module needs. Skip to content info ModuleExperts. Battery Drain Parasitic drain Parasitic drain is due to components in your vehicle continuing to run after the key is turned off.
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From Name. Have a look at this Shopping Cart sent by a friend via Module Experts. Send Cart Email. Your cart email sent successfully :.Remember Me? BMW Models. Bad General Module? Results 1 to 6 of 6. Thread: Bad General Module? Thread Tools Show Printable Version. Hi Gents, I've looked up my problem and done some troubleshooting and come to the conclusion that my General Module is bad in my 03' Would anyone please take the time to review my thought process before I purchase a replacement module.
Symptoms: -Key fob lock and unlock buttons do not work, but trunk release button does. Troubleshooting done: -Checked fuse 53, good visually No change. So, am I correct in assuming a bad GM?
If so, any recommendations for a US based vendor for said module? There are four fuses that directly power the GM: 4, 11, 27, and Ed in San Jose '97 i 6 speed aspensilber over aubergine leather. Ed, Thanks for the quick response.
I will check those fuses as well. Assuming all of them are good, she's off to the shop for a computer analysis. Are there any semi-affordable BMW computers you would recommend in lieu of taking it to someone?
There are several laptop-based scan tools out there, many with questionable efficacy. Next time I'll just buy a module and forgo the verification. Pull the module and search the part number online.
You should be able to find one but even if you can't find the same part number, pretty much any E39 GM should work. If you don't code the module though I think you get stuck with the programmed functions of the previous car. I got one from a '99 Everything is the same but now the car beeps when you lock it, and the seats can't be programmed for a different seating position for each key. FYI I had your exact symptoms, but also the wipers didn't work. I also bought a module from ebay, matches my numbers exact, only thing that does not work is lock button on inside of car.
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Light Control Module or Other Problem?
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