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reverse/neutral safety switch wiring

Discussion in 'Electrical and Interior' started by krazykyle, Apr 25, 2010.

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  1. krazykyle

    krazykyle Master Mechanic

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    i just installed a Hurst pro racket shifter,it has a reverse and separate neutral safety.does anyone know off hand which wires i need to splice into for the reverse lights and the neutral safety?
     
  2. 84cutspreme

    84cutspreme G-Body Guru

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    The reverse lights in my 84 cutlass worked off of the blue wire going into the neutral safety switch. Just make sure you get the wire input before it goes into the current switch. I just ran micro switches for my 700r-4 to get reverse lights and park-lock. If you need to do park-lock just tap into the purple wire where it runs between the ignition and starter. I can probably get you a pic of the schematic if you need it since I only did reverse lights and park-lock, no neutral-lock.
     
  3. Blake442

    Blake442 Geezer

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    If you left the linkage from the trans to the column intact, you don't need to wire anything, and the cars original functions can be retained.
     
  4. krazykyle

    krazykyle Master Mechanic

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    well i do have it hooked up with the original linkage for the car.i have a manual shift valve body and i just thought with all the shifting i will be doing that linkage might be a burden.it's not the tightest linkage around either and since the shifter came with the switches i thought i would use them.
     
  5. 454muscle

    454muscle Royal Smart Person

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    In my previous 84 GP it was a green wire in a straight-line harness near the fuse box near the bottom left, under the dash.

    Easy way to figure it out: Look in your trunk, find the main bunch of wires (usually along the left side of the trunk) and mark down the colors in that bunch and the order of them (as they run into the harness, which is near the left corner of the trunk). One of those wires is for reverse lights.

    Now go under your dash and look for the same bunch of wires (same colors) as they go into a harness. Grab a test light, connect ground and use it to find which one of those wires lights up your reverse lights. Tap into it with your new switch's power wire. Done.
     
  6. krazykyle

    krazykyle Master Mechanic

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    sure if you have a diagram it would be helpful
     
  7. joe_padavano

    joe_padavano Royal Smart Person

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    Well, you could always BUY a factory service manual...

    In any case, G-body cars do not have an electric neutral safety switch. They have a mechanical interlock in the steering column. If you have disconnected the backdrive linkage to the column, this interlock will not function and you will be able to start the car in any gear. The switch on the column is for the backup lights and a park/neutral signal to the computer. It is NOT connected to the starting circuit.
     
  8. krazykyle

    krazykyle Master Mechanic

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    I have two manuals and the one just shows the picture of the safety switch,i can't seem to find the wiring diagram
     
  9. 84cutspreme

    84cutspreme G-Body Guru

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    [​IMG]

    Like I said before interrupt it before the switch where it is blue.

    ...just to comment on all the nit pickers, It is called the gear selector switch...but it does basically the same thing as a neutral safety. Only allows starting in park & neutral, and activates reverse lights.
     
  10. krazykyle

    krazykyle Master Mechanic

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    thanks man i can't seem to find that page.is that in the chassis manual or the electric manual
     
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