Cruise Control issue

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  • bmwsun
    Grease Monkey
    • Feb 2008
    • 388
    #1

    Cruise Control issue

    Hi all,

    Need help troubleshooting a cruise control issue.

    The car is a 1989 325i, the cruise control does not work at all.

    I have replaced the cruise control computer, cruise control handle as well as the cruise control motor that mounts in the engine, the brake lights also work.
    As well i have checked the fuses. Yet still the cruise doesnt not work.


    Any thoughts?
    M3 springs w/bilstein hd's, IE 22/19mm sway bars, front IE stress bar, complete suspension rebuild, IS interior.
    Crew chief for BBQ2U Racing: James Crivellone, John Parker, Chris Anderson, Ben Wilson, George Howe, Will Kellog, Jim Cissell
    BBQ2U Racing, Best of Intentions Racing
    Tags: None
    • jlevie
      R3V OG
      • Nov 2006
      • 13530
      #2
      Is the clutch or in the case of an auto the park/neutral switch working? I.E. is pin 9 of the cruise control module grounded when it should be? Is the speed signal reaching the cruise control module on pin 6?
      The car makes it possible, but the driver makes it happen.
      Jim Levie, Huntsville, AL

        Comment

        • 87-325ic
          E30 Enthusiast
          • Apr 2006
          • 1198
          #3
          ^ get your bentley and start looking over all the components of the system.

          it turned out that my clutch pedal switch was adjusted too tight, making the cruise control system think that i had my foot on the clutch, which makes the cruise turn off.

            Comment

            • bmwsun
              Grease Monkey
              • Feb 2008
              • 388
              #4
              Originally posted by jlevie
              Is the clutch or in the case of an auto the park/neutral switch working? I.E. is pin 9 of the cruise control module grounded when it should be? Is the speed signal reaching the cruise control module on pin 6?
              Ill give it a try and let you know.

              Thanks
              M3 springs w/bilstein hd's, IE 22/19mm sway bars, front IE stress bar, complete suspension rebuild, IS interior.
              Crew chief for BBQ2U Racing: James Crivellone, John Parker, Chris Anderson, Ben Wilson, George Howe, Will Kellog, Jim Cissell
              BBQ2U Racing, Best of Intentions Racing

                Comment

                • PeaveyBassist
                  No R3VLimiter
                  • Sep 2004
                  • 3511
                  #5
                  http://www.r3vlimited.com/board/showthread.php?t=154093&highlight=cruise


                  ^^^ That has good info in it btw if you're looking for pins/wire colors. Mine stopped working again too, so I'm guessing it is a bad/corroded connection or ground somewhere.
                  RIP e30 (brilliantrot '91 325i) 11/17/06 Byebye: 8/21/07
                  Welcome e30 (brilliantrot '90 325is) 12/23/06
                  DaveCN = Old Man
                  My signature picture was taken by ME! Not by anyone else!



                  Originally posted by george graves
                  If people keep quoting me in their sig, I'm going to burn this motherfucker down.

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