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#21
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This weird motor-like thing, with 5 wires coming from it, looks to me that had no function at all. I found the number and called that electrician, and he said that he only cut one wire of GM3 and installed an external switch to turn it off, because, according to him, the old GM3 was draining the battery. The switch was some sort of remote switch (look photo above). What he actually did - he cut RED-GRAY wire from pin 1 of the X332 connector (Terminal 30, F14 [5Α]), lead it from the connector, with his "Frankenstein," to the ground (a screw above the glove box) and he soldered it to the F64 also. And since I had two times dead battery, after the car was sitting for 4-5 weeks in the garage, it seems to me that he also stopped the GM3 to take the car into sleep mode (or GM3 was broken before already, I will test that too - the previous owner talked about the symptoms of a broken GM3). So long story short, there are no other wires that he installed (at least he says so) and the previous owner said to me yesterday that, before that intervention, all these lights went off, after the switch was turned off. Mystery... Quote:
Here is a working photo of the disconnected X806: https://freeimage.host/i/Hc1IZas What does Terminal 58g exactly do? Does it send only a signal to turn off or on lights, or does it power also backlights?
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BMW E46 318d '03 BMW E53 3.0d '06 |
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#22
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If you work backwards from the invidual lites/modules (I just checked the interior map lite for example) you might see that all can be controlled by the GM as well as the LCM. The problem might be with the GM or input to the GM.
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#23
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Well, I would be prone to rule out GM, since it is a brand-new part bought from Leebmann24 in Germany. The only difference is that this GM3 (61359117101) has a part number that supersedes GM3 which was already in the car (61356960249). https://www.realoem.com/bmw/enUS/par...&q=61359117101 But that shouldn't be a problem, because, if I remember correctly, when I put the old GM for the quick test, the lights were on. I don't know if connecting back the RED-GRAY wire on the GM connector X332 that was cut could be a problem? But it shouldn't be, I don't see how that could keep the lights up... Which brings me back to my previous two questions: 1. Can behavior could have been somehow coded in into GM3? Or is it possible that GM3 software has to be updated? 2. Or, is there any short close to the modules/lites that have both, GM and LCM? I feel like this scenario makes more sense. But if that is the case, after removing the Terminal 58g line at X806, all others (or at least all that go directly from X806) should have turned off, right? What a puzzle... P.S. Guys, million times thanks for trying to help me!
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BMW E46 318d '03 BMW E53 3.0d '06 |
#24
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Disregard that post I got confused myself with the wiring diagrams, the LCM controlled the LEDs and power for the lights themselves comes from the GM module. I sucks that none of the diagrams show all of the connections but if the only source/connection for the backlite LEDs is the LCM and they are still on when you pull the LCM there must something miswired. I would still concentrate on getting all the wiring back to factory before pulling too much of my hair out.
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#25
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Is there any way to know for sure, what powers LEDs, LCM, or GM3 that is Terminal 58g ? I will take Hazard Warning Switch and Gear Indicator as an example and start taking the wires out from the connector, to see when will the light turn off... I may add Panorama Roof Switch because it should have only one wire coming to it. All others are going to the Sun Roof Module (https://bmwteka.com/wds/en/e53/37581eb1). I have no other idea what to do.
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BMW E46 318d '03 BMW E53 3.0d '06 |
#26
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Ok your picture shows that you disconnected red with gray stripe. What you are looking for is GRAY with RED stripe!
The component locations show a harness connector block (behind glove box) with 6 strips, terminal 58g is strip number 6, bottom left corner of the block in the picture.
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) Last edited by 80stech; 01-20-2023 at 09:44 PM. |
#27
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I think that the lightning in my picture is just bad. These are the only gray-red wires down there. All others are more orange-yellowish. Plus, I took the harness from the armrest and compared the colors of the wires before I started taking them off. But I don't exclude the option that I made a mistake. I will double-check this tomorrow. I will check also the X38 connector of the LCM, that is, 1. Pin on that connector. Maybe is the color for some reason changed, but I doubt that. If I didn't make a mistake, I will also check the wiring on the central dome light... Maybe something weird happened there. P.S. I'm freestyling now, but, maybe Terminal 58g is just a signal for on-off, and for dimming (The diagram says: 1 - A - Signal line, night lights - Connector terminal 58), and something else supplies the backlights. But that "something else" I can't find on the diagrams... So maybe I'm wrong gain.
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BMW E46 318d '03 BMW E53 3.0d '06 |
#28
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Looking at the hazard switch wiring, X1019 is spliced directly to X806 (58g) so that could provide power to all the lights you are having trouble with but still doesn't explain why nothing happens when you pull the wires from x806. page ECL-34 shows X1019 as a splice that looks to be in the harness behind the right rear panel(same panel rear fuses are).
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#29
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You were right! That wasn't X806, it was something else that also influenced central dome light (I couldn't figure out yet what that was). 58g wires were for some reason yellowish-red. Maybe the gray color faded, or my lightning was bad... Anyhow, thanks for pointing that out! I took a multimeter and determined definitely what 58g is (I should have done that first time before I started disconnecting the wires -.-). After that, I took off the dome light, and I had what to see. Someone soldered and shorted, what I believe is the pin that comes from GM3 with 58g... Why would anyone do that? Anyhow, I unsoldered it, and the lights went off. Now, the switch controls them again. I checked again the current draw, and now it is: 1. 3.50A when the interior lights are on. 2. 1.50A when they are off, or immediately after I turn the car off. 3. 0.55A around 1 min after locking. 4. 0.40A around 1.5 min after locking. 5. 0.37A from 2 min after locking. (with lights it was 0.76 A) 6. 0.02A 16:45 after locking - the car is in sleep mode. So this sounds totally normal and healthy. Though I had once, when I locked the car, a crazy situation: the "P" LED started to blink, I could hear some relay somewhere and the draw was pulsing from 1.5 to almost 15 Amps. I assume that maybe the alarm system (that should be DWA) has some problems. I think that I'm going to try to disable it totally if it's possible. But one step at a time. The next stop are some engine problems. At least now the battery won't die at the mechanics. Thank you, guys, very much for your help. I will update the first post, so people can know what I did.
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BMW E46 318d '03 BMW E53 3.0d '06 |
#30
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Good work! Yes, that could very well be the alarm, the siren probably is shot but still drawing current.
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
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