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Thread: FTP lights came on by themselves. HELP

  1. #1
    Join Date
    Sep 2010
    Location
    Augusta, GA
    Posts
    99
    My Cars
    92 850, 95 840, E90 M3

    FTP lights came on by themselves. HELP

    Ok guys I purchased another E31 850 this time and when I replaced the batteries about 30 mins later I looked outside and My FTP was on. I checked tp make sure that the switch was off and everything was in the correct spot. Have anyone one seen this before. Was do I need to get refurbished?
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    Hurt

    Current project working on the E31 rebuild.
    1992 BMW 850i, 1995 E31 840ci, 2008 E90 M3, 2008 750Li

  2. #2
    Join Date
    Feb 2010
    Location
    Hampshire UK
    Posts
    8,867
    My Cars
    99 840ci Sport Indv
    Unless there has been some 'additional wiring' added - then the two possibilities are the Crash Control Module (N17) or the FTP relay (K52z):

    http://www.meeknet.co.uk/e31/Timms_B...lay_Finder.htm

    Pop N17 out and see if they go off....
    Last edited by Timm; 12-07-2017 at 03:31 PM.
    Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i


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  3. #3
    Join Date
    Jul 2015
    Location
    Melbourne, Australia
    Posts
    647
    My Cars
    1994 840Ci - M60, 6MT
    Also check your wiring harness from the engine bay to the FTPs to see that the insulation hasn't frayed and it's causing a short, or bridging the circuit on.
    The wiring on my car was completely frayed and I had several wires completely un-insulated.

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