Neutral safety switch wiring

Discussion in 'Electrical Systems' started by Johns79Z28, Feb 8, 2012.

  1. Johns79Z28

    Johns79Z28 Veteran Member

    I am having trouble locating the correct wires to hook up
    to a B&M shifter.I would like to use the wire at the ignition
    switch but am not sure which wire feeds the solenoid
    when the key is turned to the start position.Also does that
    wire from switch to solenoid power the starter solenoid
    or ground it?I have wiring diagrams but nothing matches
    in color for what I have.This wiring has never been changed
    after it left the factory .It is a console style automatic.
    I could break in at the starter but I have installed a
    heat shield with straps and don't want to cut the straps
    Any Ideas?Thanks for your time. JB
     
  2. Twisted_Metal

    Twisted_Metal Moderator Lifetime Gold Member

    24,233
    36
    Feb 26, 2004
    Bloomington, MN
  3. Johns79Z28

    Johns79Z28 Veteran Member

    Neutral switch wiring

    Twisted Metal,
    I see a 12 ga. purple on the ign. switch.I will try that one and see
    what happens.Thanks John
     
  4. Twisted_Metal

    Twisted_Metal Moderator Lifetime Gold Member

    24,233
    36
    Feb 26, 2004
    Bloomington, MN
    There's two wires.
    They are both purple but one has white stripes on it.

    IIRC, The micro-switch on the B&M shifter will have two connections for neutral safety.
    You will need to patch both wires into the switch to complete the circuit in neutral.

    The switch should look like this:

    [​IMG]

    It will not matter which wire goes to each of the two connections as it's a DC switch.

    Good Luck!
     
  5. Johns79Z28

    Johns79Z28 Veteran Member

    Neutral switch wiring

    Twisted Metal,
    Looking at the steering wheel end of the ignition switch
    there is 1 pink,1 purple,1 red,1 black all 12 or 10 ga.
    the lower plug for the switch is 1 red,1 orn. 12 or 10 ga
    and 2 in 1 hole brown/white stripe,1 black/white stripe 16 or 18 ga.
    I see no double purple .This does not match wiring diagrams. John
     
  6. Leonards78LT

    Leonards78LT Veteran Member Lifetime Gold Member

    1,034
    0
    Jan 21, 2001
    Central Oklahoma
    The purple wire is the one you want to splice your switch on your new gear shift. You will need to cut this wire and splice in each side of the new switch into it.
    This wire is only hot while cranking the engine.
     
    Last edited: Feb 8, 2012
  7. Johns79Z28

    Johns79Z28 Veteran Member

    Neutral switch wiring

    Leonards 78 LT,
    I thought that might be the one.I think I was confused by
    2 purple/white stripe shown in the wiring diagrams
    Thanks for the help.John
     
  8. azkeebler

    azkeebler Veteran Member

    568
    1
    Dec 14, 2011
    Manteca, ca.
    Why not utilize the factory wiring from the neutral safety switch off the the bottom end of the column? Just run extensions from the two purple wires at the bottom of the column to the B&M shifter's micro switch. That way, it is easily reversible and no hacking of wires to create problems later.
     
  9. Leonards78LT

    Leonards78LT Veteran Member Lifetime Gold Member

    1,034
    0
    Jan 21, 2001
    Central Oklahoma
    Maybe they ran out of purple with white stripe that day. :D
    Glad I was able to assist.
     
  10. Johns79Z28

    Johns79Z28 Veteran Member

    Nuetral switch wiring

    Azkeebler,
    This car has been sitting for about 12 years and the column
    was replaced by a friend and I see no wires like that after
    looking with the column dropped so I will use the one at the
    ignition switch but thanks for the help. John
     

Share This Page