Results 1 to 7 of 7

Thread: Park brake light on.

  1. #1
    Join Date
    Oct 2018
    Location
    Barrhead Alberta Canada
    Posts
    6
    My Cars
    2006 BMW 750Li

    Park brake light on.

    2006 750Li, Park brake warning is on. has a trouble code something to the effect of "park brake motor short to ground." problem is I cannot find decent wiring diagrams for this car. I have downloaded 3 different service manuals, all have basically the same diagram of the brake electrical system. Anyone know where a can order a good comprehensive manual. I have no problem paying for a manual if it is a good one but so far all three have been crap.

  2. #2
    Join Date
    Jan 2007
    Location
    .
    Posts
    7,708
    My Cars
    .
    Remove the parking brake unit as a whole. Throw it in the trash and replace it. Problem solved! Sorry if that's now quite the answer you're looking for, but they are junk.
    Last edited by White94RX; 11-05-2018 at 03:50 PM.
    ASE and BMW Master Certified Technician

  3. #3
    Join Date
    Oct 2018
    Location
    Barrhead Alberta Canada
    Posts
    6
    My Cars
    2006 BMW 750Li
    Agreed, but kinda necessary to pass inspection here.

  4. #4
    Join Date
    Dec 2007
    Location
    Dallas, TX
    Posts
    10,384
    My Cars
    '93 850Ci- Daily Driver
    You can also just replace the plastic gear with the metal gear that is available all over the internet. The metal gear will cost you about $25, whereas a new unit (also with the crappy plastic gear that will also fail) is in the neighborhood of $400+. Once you have completed the repair, you will need to reset the Mechanical Parking Brake via INPA to get the unit initialized and to get rid of the warning light.
    '93 850Ci - Mineralweiß Metallic

    2001 740iL - Titansilber
    ALPINA B7 -Alpinweiß III


    ...the price of cool ain't cheap!

  5. #5
    Join Date
    Jan 2007
    Location
    .
    Posts
    7,708
    My Cars
    .
    It's been so long, are those gears still available?
    ASE and BMW Master Certified Technician

  6. #6
    Join Date
    Mar 2013
    Location
    san diego,california
    Posts
    1
    My Cars
    1995 318 i,2005 x3
    hello
    i just purchased mine on amazon for only 25 bucks in ca,usa
    treaky but easy installation
    the only probem i have is:
    how can i initilize the module again?
    cause for some weird reason the emergency brake works only on D position on my car
    if a shift it back to P it will not work.

  7. #7
    Join Date
    Dec 2007
    Location
    Dallas, TX
    Posts
    10,384
    My Cars
    '93 850Ci- Daily Driver
    You need to have it reset through INPA. Disconnecting the battery will NOT reset it. I actually had to do this process twice, but it is not that difficult.
    '93 850Ci - Mineralweiß Metallic

    2001 740iL - Titansilber
    ALPINA B7 -Alpinweiß III


    ...the price of cool ain't cheap!

Similar Threads

  1. Flashing Parking Brake Light...
    By aschroeder92 in forum 1975 - 1983 (E21)
    Replies: 1
    Last Post: 05-02-2009, 12:32 AM
  2. Parking Brake Light ?
    By jmejia15 in forum 1991 - 1999 (E36)
    Replies: 0
    Last Post: 01-12-2009, 11:32 PM
  3. Battery and Parking Brake light
    By cj08334 in forum 1988 - 1994 (E32)
    Replies: 3
    Last Post: 07-24-2008, 12:55 PM
  4. Park Brake light has a mind of its own
    By FritzE30 in forum 1983 - 1991 (E30)
    Replies: 4
    Last Post: 11-14-2005, 12:29 AM
  5. Parking brake light is on, on dash
    By RaNDaLLsAxToN in forum 1991 - 1999 (E36)
    Replies: 2
    Last Post: 11-17-2004, 06:41 PM

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
  •