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AAN Loom into type 85 Coupe Quattro

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  • #91
    Today I checked the dash and wiring loom, I found the problem and way to fix it. The problem is that the D+ blue wire it's broken or someting, I search the connector inside the car and I haven't got continuity between the alternator connector and the inside connector...I could fix it if I put a new wire, but I don't like it too much...and I don't like to open the wiring harness.

    Anybody could check if it has continuity between the single red female and alternator D+ connector??

    If I put in ground the red male connector, batery bulb lights and temp. bulb has flash light, like must be.



    Also the schemes told that the 6pin red connector (T6b) must have a blue wire...I didn't find it, or isn't the right connector



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    • #92
      what is this -Eylt Black - O 0 internally bridged to B87F and H87F via S13 and N via S22????? doesn`t have anything named b87F or H87F on my diagrams??? I truly do not understand where black eylet wire should be connected and what input should it be. Can someone explain these B87F and B87H

      P.S.do not to tell me to read again because I`ve looked over 20 times over everything I have


      Originally posted by _ShurikeN View Post
      Its very raw, but maybe will be helpful for smb:


      '90-91 Typ89 NG engine harness interface pinout:
      -------------------------------------------------------------------

      T5 black
      T5/1 white/grey - F1 oil pressure switch 1.8bar
      T5/2 empty
      T5/3 brown/green - Both ECUs with bridge to black diagnosis plug T2c/1
      T5/4 empty
      T5/5 violet/black - VEZ ECU

      T10 black
      T10/1 - grey/yellow - brake fluid level switch
      T10/2 - blue/brown - MFTS F76 1/T
      T10/3 - blue/black - F22 oil pressure switch 0.3bar
      T10/4 - blue/yellow - MFTS F76 4/C (bridge with T3/2)
      T10/5 - blue - alternator
      T10/6 - brown - earth
      T10/7 - green/blue - engine speed signal (tachometer)
      T10/8 - brown/red - G22 gearbox Vehicle speed signal (+bridge to AAN ECU/50pin)
      T10/9 - empty
      T10/10 - empty

      T3 brown
      T3/1 - gn/ro B53C - V5 windscreen washer pump
      T3/2 - blue/yellow - MFTS F76 4/C (bridge with T10/4)
      T3/3 - br/gn F87 thermo switch for fan run-on

      T3a red
      T3a/1 - ECU
      T3a/2 - empty
      T3a/3 - empty

      T1h yellow - yellow fuel consumption to ecu.

      T1d White - blue/white MFTS F76 2

      Single red + from ACC - L30

      T2a white round
      T2a/1 - bl/ro F4/2 reversing light switch == T6c/4 AAN
      T2a/2 - sw/bl F4/3 reversing light switch with bridge to B15a

      B-staecker black 8:

      B53G(C) gn/ro - T3/1
      B50A red/black or black - Starter 50
      B15a black/blue - F4/3 reversing light with bridge to T2a/2
      == ==
      B15a black/blue - F76 3/+
      BS gn/li - Ignition ECU J154 14 or Motronic ECU. ECU feeding?
      B15 black - feeding of ign. coil, ECU sensors, etc.through fuses
      B1(l) empty(?)
      B87F empty(?)

      Single black/red brown plug - M30az

      Single red/black green plug - M30ac(?M30ag?)(? if comes to T2b/2 black diagnosis)

      --
      Staecker for aux gauges - not in the common engine harness.

      T2s brown round
      T2s/1 - bl/ws - G10 Oilpressure sender
      T2s/2 - gn/sw - G8 Oil temperature sender

      --
      mapping to AAN or outside:

      B15 - T6o/3
      87a - T6o/4
      BS - T6o/5
      B15a - T6c/3
      B50A - leave stock starter wire


      =============================================
      AAN S6 engine harness interface pinout
      - - - - - - - -
      terminal - engine harness side - target
      ---------------------------------------------------------
      Eyelet black - ?lambda heating through fuse? - 87F on fuseboard (?87F)
      Eyelet red - ?ecu feed?(?ECU T55/18?) - permanent 12V (?L30)

      Eyelet green/red - ECU T55/55 - DLC(L?K) and T2/2
      Eyelet White/red - ECU T55/13 - DLC(K?L) and T2/1

      T6e white
      T6e/6 Brown/Yellow - coolant pump relay J115/J155(324) 5/87a (at 5/9) - Afterrun coolant fan relay J69(214) at 4/86

      T6o brown
      T6o/3 - Black - ECU(T55/27) and coils switched feed throug fuse S115 - 15 (switched pwr on 4A)
      T6o/4 - Blue - injectors & MAF feed through fuse S116 and WGFV,N80,N71 feed through fuse S75 - 87a of J17 Fuel Pump Relay
      T6o/5 - Brown/Yellow - ECU T55/3(signal for the Fuel pump relay) (?==T6e/6?) - ?

      T4m Black
      T4m/1 - Black/white - G10 oil pressure - oil pressure gauge
      T4m/2 - Black/Brown - G8 oil temp sender - oil temp gauge

      T6c Red
      T6c/1 - Brown/red - G22 Vehicle speed sensor
      T6c/3 - Black/blue - F76 3/+ bridge to ECU T55/22 bridge to F4/1 reversing light switch bridge to Data link connector (blink-codes) - Fuse S14(+) == T2a/1 in audi 80 NG
      T6c/4 - Blue/red - F4/2 reversing light switch - reverse light lamps and mirror control unit
      T6c/5 - Blue/Black - ECU T55/31 fuel consumption signal - Dash boardcomputer
      T6c/6 - Grey/Red - F79 Hudraulic pressure control switch (servo brakes) - Dash autocheck

      T6a Green
      T6a/1 - Lilac/black - ECU T55/40 output of engine speen signal (tachometer) - dash tacho
      T6a/3 - White/blue - ECU T55/50 with bridge to T6/1 Vehicle speed sensor
      T6a/4 - Grey/yellow - F34 Brake Fluid Level Warning Switch - autocheck
      T6a/5 - Brown/Yellow - F76 1/T ECT Thermal switch (MFTS) - Temp gauge and autocheck
      T6a/6 - Brown - earth - ?

      T6d Grey
      T6d/1 - Yellow/Blue - ECU T55/32 - Trip computer boost pressure gauge
      T6d/3 - Blue - Voltage regulator/Alternator - dash alternator charging bulb
      T6d/4 - Blue/Yellow - F76 4/C ECT Thermal switch (MFTS) - autocheck
      T6d/5 - Blue/Black - F22 0.3 bar oil pressure switch - autocheck
      T6d/6 - White/Grey - F1 1.8 bar oil pressure switch - autocheck

      T6 blue
      T6/1 - White/blue - Vehicle speed signal bridged to T6a/3 and ECU T55/50 - A/C control head (vehicle speed signal)
      T6/2 - blue/green - F76 2/R ECT Thermal switch (MFTS) - A/C control head (engine coolant temp signal)
      T6/3 - white - ECU T55/41 - A/C control head (increase engine idle speed)
      T6/4 - green/yellow - ?ECU? - A/C control head (shutdown on full load)

      -------------
      mapping to audi 80:

      T6o/3 - B15
      T6o/4 - 87a
      T6o/5 - BS
      T6c/3 - B15a
      Eylt Black - O 0 internally bridged to B87F and H87F via S13 and N via S22
      eylt Red - L30
      Tribute to Group B rally

      Comment


      • #93
        Originally posted by 666 View Post
        what is this -Eylt Black - O 0 internally bridged to B87F and H87F via S13 and N via S22?????
        I know it's very late, but that's all is just about "O" contact in relay carrier.

        Neverhteless, this should be considered:

        Originally posted by Val View Post
        T89 B87F (better than "O" because B87F is fused - S13) - AAN Eyelet Black and AAN T6H/4

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