Results 1 to 7 of 7

Thread: chime/gong randonly comes on - solved

  1. #1
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    44,389
    My Cars
    11/88 E32 750iL+98 E36M3

    chime/gong randonly comes on - solved

    Yesterday I came into the garage and hear the chime constantly making noise, gong, gong, gong. Could not be a weak battery, as I had the battery on the charger and the battery is just 6 months old. Anyway, tested the battery, o.k.
    Switched ignition on ACC, gong stopped. Then came on again.
    Made a test drive, gong came on randomly, sometimes for minutes, sometimes only a few gongs. Came home and at that time the gong was off, switch engine off, gong starts again.
    No warning in the check control. Even with key out of ignition the gong continued.

    So I started checking
    installed different chime, same problem
    installed different cluster, same problem.
    pulled the CCM, even with pulled CCM and no key in ignition the chime continued.
    Chime went off when I pulled the black connector on the chime left hand under dash left side of steering wheel, there are 2 plugs/connectors, 1 x white, 1 x black.
    So I started to study the ETM for a 1989 model E32 http://shark.armchair.mb.ca/~dave/BMW/e32/e32_89.pdf
    On page 7100-25 picture 3 you can see
    X518 connector black, 4-Pin
    X522 connector white, 3-Pin

    X518 black on my car has only 2 wires, 1 x Red-White, 1 x Blue-White.
    X522 has 3 wires on my car
    Removing plug X518 stopped the gong, so I could concentrate of where this one goes in the ETM. X522 is connected with the instrument cluster, X518 with the OBC on board computer, see page 6581-07. And it is also connected always with terminal 30, constant 12V.

    OBC pinout is here and that shows there are the 2 pins for the chime http://www.bmwe34.net/E34main/Upgrade/OBC.htm
    OBC
    pin1: violet/green/yellow, alarm system
    pin10: black/green, starter
    pin6: + from fuse F17
    pin9: + from fuse F20 (red/yellow)
    pin8: + from fuse F1
    pin22: grey/red, light switch
    pin25: yellow/red, turn signal switch
    pin3: white/yellow, diagnostics
    pin16: white/violet, diagnostics
    pin14: white/grey, instrument cluster
    pin7: black/white, instrument cluster
    pin4: ground
    pin5: blue/red/yellow, temp sensor
    pin20: black/red/yellow, pre-ventilation
    pin21: black/white, pre-ventilation
    pin23: violet/white/yellow, alarm system
    pin17: red/grey/yellow, alarm system
    pin26: black/red/yellow, fuel tank level sensor
    pin12: brown/violet, fuel tank level sensor
    pin11: white/black, DME
    pin24: black/violet, DME
    pin19: white/red, chimes
    pin18: white/blue, chimes
    pin15: white/brown, radio
    pin2: blue/brown/yellow, radio

    So I removed the radio to remove the OBC, installed a spare OBC, problem gone!
    Never heard about such a problem before. So if you have a problem with the chime randomly coming on, this info might help.
    SHOGUN'S TRICKS AND TIPS FOR THE SEVEN SERIES
    http://twrite.org/shogunnew/topmenu.html

  2. #2
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    44,389
    My Cars
    11/88 E32 750iL+98 E36M3
    Questions to the electronic wizards. Could that defect in the OBC IV be caused by defective capacitors? If there are some in at all, no idea.
    Did not open it as I am not the electric expert and I have some spare OBC IV. The only pics from inside the OBC IV are on the site of John Evans http://www.evansweb.info/category/bmw-repairs/list/
    No idea if that could be caused by bad capacitors. Maybe a member here has opened it up and has some hints?

    Edit:
    I also asked on the German E32 forum, one E32 owners had a similar problem, here the German text and thereafter my brief translation:
    Hallo Erich, da sind Elkos drin, Reparieren! Meiner hat mal in der Nacht die Alarmhupe dauer hupen lassen, bis ich die Batterie abgeklemmt hatte.Da war ein Elko gestorben und hat das verursacht.

    there are capacitors inside, repair it!
    My E32 once started in the middle of the night the alarm horn and only stopped, after I had disconnected the battery. There was one 'dead' capacitor inside and that was the cause of the trouble.
    Last edited by shogun; 09-12-2017 at 09:06 AM.
    SHOGUN'S TRICKS AND TIPS FOR THE SEVEN SERIES
    http://twrite.org/shogunnew/topmenu.html

  3. #3
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    44,389
    My Cars
    11/88 E32 750iL+98 E36M3
    SHOGUN'S TRICKS AND TIPS FOR THE SEVEN SERIES
    http://twrite.org/shogunnew/topmenu.html

  4. #4
    Join Date
    Oct 2010
    Location
    Kansas City, Missouri
    Posts
    2,190
    My Cars
    89 750iL | 91 325iX
    Thanks for this info. Will probably need it here soon after I repair the instrument cluster and figure out what the damn thing is gonging me about.

  5. #5
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    44,389
    My Cars
    11/88 E32 750iL+98 E36M3
    gong pinout in German language, in total 4 plugs are possible and there are 9 pins (usually not all used, depending on options, country spec etc.)

    Er besitzt 4 Steckplaetze, 9 PINs und kann 5 verschiedene Toene abspielen.
    Für den Betrieb des Gongs, bzw. das ansteuern der einzelnen Toene, wird nur Spannung (12V - 14V), sowie Karosseriemasse (sowie natuerlich die jeweilige geschaltete Masse / Spannung) benoetigt.

    4-poliger Steckplatz: PIN - = Karosseriemasse PIN T1 = Ton fuer "Memo" PIN T2 = Ton fuer "Temperaturwarnung" und "Geschwindigkeitswarnung" PIN + = Spannung (12V)
    3-poliger Steckplatz: PIN - = Karosseriemasse PIN T3 = Ton fuer "Schluesselwarnung" (Schluessel im Zuendschloss & Tuer offen) (USA) PIN + = Spannung (12V)
    1-poliger Steckplatz rechts: PIN T4 = Ton fuer "Einparkhilfe" (PDC)
    1-poliger Steckplatz links: PIN T5 = Ton fuer "Rueckwaertsgang" (Japan)
    Die Toene T1 - T4 werden mit einem Masseimpuls gestartet.
    Der Ton T5 startet durch Anlegen von Spannung, ist also nicht massegesteuert.
    Ton T1: kurzer Masseimpuls = Kurzer 3er-Ton / laengere Masse = andauernde Tonfolge (wie 3er Ton)
    Ton T2: kurzer Masseimpuls = melodisch abklingender Einzelton / laengere Masse = andauernde Tonfolge (wie Einzelton)
    Ton T3: kurzer Masseimpuls = melodisch abklingender Einzelton (wie T2) / laengere Masse = ununterbrochen andauernder Ton (wie Einzelton ohne Unterbrechung) Ton T4: kurzer Masseimpuls = Kurzer Piep-Ton / laengere Masse = ununterbrochen andauernder Ton (wie Piep-Ton ohne Unterbrechung)
    Ton T5: kurzer 12V-Impuls = melodisch abklingender Einzelton (tiefer als T2/T3) / laengere 12V-Versorgung = andauernde Tonfolge (wie Einzelton)
    T3 & T4 sind in ihrer Laenge also abhaengig vom zugefuehrten Impuls. Alle anderen Toene durchlaufen bei laengerem Impuls automatisch eine melodische Abfolge.
    SHOGUN'S TRICKS AND TIPS FOR THE SEVEN SERIES
    http://twrite.org/shogunnew/topmenu.html

  6. #6
    Join Date
    Jan 2010
    Location
    Brantford ON Canada
    Posts
    1,367
    My Cars
    735iL - '92 and '89
    <Hallo Erich, da sind Elkos drin, Reparieren!>

    "Al.Elko" seems to translate as "Aluminum Electrolytic"
    These are "kondensoraten" = capacitor or condenser.
    As shogun says, when capacitors fail to open-circuit, the attached computer circuits begin erratic operation, including Chiming. As with Instrument Cluster, etc., so with OBC.

  7. #7
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    44,389
    My Cars
    11/88 E32 750iL+98 E36M3
    Yes, Elkos means Elektrolytische Kondensatoren, Elko is just a German abbreviation, = capacitors like in the cluster
    SHOGUN'S TRICKS AND TIPS FOR THE SEVEN SERIES
    http://twrite.org/shogunnew/topmenu.html

Similar Threads

  1. Check Engine Light comes on in97 328i
    By e36mok in forum 1991 - 1999 (E36)
    Replies: 1
    Last Post: 09-08-2001, 08:04 PM
  2. Help, "Check Brake Light Circuit" keeps coming on!!
    By ///M3 4-LIFE in forum 1992 - 1999 M3 (E36)
    Replies: 1
    Last Post: 07-29-2001, 01:44 AM
  3. Auxiliary Cooling Fan is Not Coming on!
    By BP SCM3 in forum 1992 - 1999 M3 (E36)
    Replies: 3
    Last Post: 07-27-2001, 10:29 PM
  4. A/C comes on when it feels like it >>
    By Jim//M3 in forum 1992 - 1999 M3 (E36)
    Replies: 0
    Last Post: 06-18-2001, 10:45 PM
  5. come on guys , i need help !!
    By Carlitos in forum 1991 - 1999 (E36)
    Replies: 6
    Last Post: 04-12-2001, 01:12 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •