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Thread: ABS/ASC fault blink codes

  1. #1
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    54,731
    My Cars
    11/88 E32 750iL+98 E36M3

    ABS/ASC fault blink codes

    On the E32 (got the info from Germany, so at least it works on the EURO version E32) one can do a kind of stomp test to get the codes, not sure if that also works on E34, this I posted in the E32 forum, maybe someone tests on E34 and posts the result with built year and month + cluster vesion. On the E32 we have found out that it will not work on the old grey back plate start ->02/89 , some had positive results with the white back plate 02/89 -> 09/90, always works on the blue version 09/90 -> end

    ABS/ASC blink codes - Only possible on newer E32 clusters
    German language version: ABS/ASC-Blink-Code
    - Bremspedal und Schalter "ASC" gleichzeitig drücken
    - Zündung "an"
    - Bremspedal und Schalter loslassen
    - ASC-LEUCHTE fängt an zu blinken
    BC = BlinkCode

    BC 1 = kein Fehler
    BC 2 = EMS Fehler
    BC 3 = Motronic Fehler (DME/ EMU)
    BC 4 = Drehzahlgeber Fehler hinten links
    BC 5 = Drehzahlgeber Fehler hinten rechts
    BC 6 = Drehzahlgeber Fehler vorne rechts
    BC 7 = Drehzahlgeber Fehler vorne links
    BC 8 = ABS-Magnetventil hinten links
    BC 9 = ABS-Magnetventil hinten rechts
    BC10 = ABS-Magnetventil vorne rechts
    BC11 = ABS-Magnetventil vorne links
    BC12 = ASR-Plungenventil Fehler hinten links
    BC13 = ASR-Plungenventil Fehler hinten rechts
    BC14 = Ventilrelais Fehler
    BC15 = Rückförderpumpen Fehler
    BC16 = Speicherladeventil Fehler
    BC17 = Langzeitfehler Druchüberwachung
    BC18 = Leckage Fehler (Wird auch angezeigt wenn Druckspeicher(Gaspatrone) im ASC+T Hydraulikblock schadhaft ist (zB. leer))
    BC19 = Druck Fehler
    BC20 = Getriebebeinflussung Leitungsfehler
    BC21 = ABS/ASR-Regelgeräte Fehler
    BC22 = TD-Signal Fehler (dürfte Tachoimpuls sein)
    BC23 = Option pin Leitungs Fehler

    Zu BC 22:
    TD Signal Fehler
    Regelgerät Kl. 55
    Zündung aus
    Stecker vom ABS/ASR-Regelgerät und Motronic-Steuergerät Bank links abziehen
    Leitung vom ABS/ASR-Regelgerät Kl.55 zum Motronic- Steuerg. Kl.6 auf Unterbrechung/Plus-/und Masseschluß prüfen.
    wenn i.O.
    Fehlerspeicher Motronic auslesen
    wenn i.O.
    ABS/ASR-Regelgerät tauschen
    -------------------------------------------------------
    Translation:
    - push brake pedal and ASC switch simultaneously
    - Zündung "an" / ignition on
    - Bremspedal und Schalter loslassen /release brake pedal + ASC switch
    - ASC-LEUCHTE fängt an zu blinken/ASC light starts to blink
    BC = BlinkCode

    BC 1 = kein Fehler / no fault
    BC 2 = EMS Fehler / EMS fault
    BC 3 = Motronic Fehler (DME/ EMU)/ DME/EMU fault
    BC 4 = Drehzahlgeber Fehler hinten links/fault speed indicator rear left
    BC 5 = Drehzahlgeber Fehler hinten rechts/fault speed indicator rear right
    BC 6 = Drehzahlgeber Fehler vorne rechts/fault speed sender front right
    BC 7 = Drehzahlgeber Fehler vorne links/fault speed sender front left
    BC 8 = ABS-Magnetventil hinten links/ABS solenoid valve rear left
    BC 9 = ABS-Magnetventil hinten rechts/ABS solenoid valve rear right
    BC10 = ABS-Magnetventil vorne rechts/ABS solenoid valve front right
    BC11 = ABS-Magnetventil vorne links/ABS solenoid valve front left
    BC12 = ASR-Plungenventil Fehler hinten links/fault ASR plunger valve rear left
    BC13 = ASR-Plungenventil Fehler hinten rechts/fault ASR plunger valve rear right
    BC14 = Ventilrelais Fehler/ fault valve relay
    BC15 = Rückförderpumpen Fehler/ fault recycling pump
    BC16 = Speicherladeventil Fehler/fault storage load valve
    BC17 = Langzeitfehler Drucküberwachung/fault long time, pressure control
    BC18 = Leckage Fehler (Wird auch angezeigt wenn Druckspeicher(Gaspatrone) im ASC+T Hydraulikblock schadhaft ist (zB. leer))
    leakage fault (is also shown when pressure vessel (gas bomb) in ASC_T hydraulic block is damaged (for example empty))
    BC19 = Druck Fehler/ fault pressure
    BC20 = Getriebebeinflussung Leitungsfehler/fault wire transmission
    BC21 = ABS/ASR-Regelgeräte Fehler/fault ABS/ASR control modules ffaulty
    BC22 = TD-Signal Fehler (dürfte Tachoimpuls sein) TD-signal fault (should be the speed impulse)
    BC23 = Option pin Leitungs Fehler/option pin line fault

    Zu/to BC 22:
    TD Signal Fehler/TD signal fault
    Regelgerät Kl. 55/ control unit terminal 55
    Zündung aus /ignition off
    Stecker vom ABS/ASR-Regelgerät und Motronic-Steuergerät Bank links abziehen/disconnect from the ABS/ASR regulator unit and MOTRONIC module bank left the connectors
    Leitung vom ABS/ASR-Regelgerät Kl.55 zum Motronic- Steuerg. Kl.6 auf Unterbrechung/Plus-/und Masseschluß prüfen.
    check the line from ABS/ASR regulating unit terminal 55 to MOTRONIC- control module terminal 6 for interruption/plus-/and ground connection
    wenn in Ordnung / in case that is o.k.,....
    Fehlerspeicher Motronic auslesen/read fault codes
    wenn in Ordnung/in case that is o.k.,....
    ABS/ASR-Regelgerät tauschen/change ABS/ASR control unit
    Shogun tricks and tips for the E32 series are HERE!

  2. #2
    Join Date
    Mar 2005
    Location
    NH
    Posts
    5,614
    My Cars
    E34 540i 6sp 1995-03-28
    I'll try this out in my 1/95 production e34 540 when I start for work. I recently discovered the previous owner had reversed the Secondary and Primary Throttle Position Sensor connectors disabling the ASC. The car seemed to operate normally otherwise so I only investigated further after Winter Snows came along. Has appeared to operate normally so I anticipate a 'No Fault' response if this function is present.

  3. #3
    Join Date
    Mar 2005
    Location
    NH
    Posts
    5,614
    My Cars
    E34 540i 6sp 1995-03-28
    I got no response from this process

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