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Neutral safety switch

Need photo of connection of wires to connect my switch

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We do not have thisw type of information. Sorry.

Posted on Jul 23, 2013


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Posted on Jan 02, 2017

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SOURCE: Neutral Safety Switch Location

on the transmission where the shift cable attaches.

Posted on Jun 15, 2009

  • 1129 Answers

SOURCE: neutral safety switch

It is located on the side of the transmission, follow the shift cable down to it you will recognize it because it has a electrical wire comming off it and either a shift lever or shift cable going to it.

Posted on Jul 14, 2009

  • 17970 Answers

SOURCE: Looking for the neutral safety switch

Neutral Safety/Back-up Light Switch

This is a combination switch which controls both Neutral Safety and Back-up lamp circuits.

C6 Transmission


C6 neutral start switch

  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle on jackstands.
  3. Remove the downshift linkage rod return spring at the low-reverse servo cover.
  4. Coat the outer lever attaching nut with penetrating oil. Remove the nut and lever.
  5. Remove the 2 switch attaching bolts, disconnect the wiring at the connectors and remove the switch.
  6. Installation is the reverse of removal. Adjust the switch and tighten the bolts to 55-75 inch lbs. (6.2-8.5 Nm).
  7. Remove the jackstands and lower the vehicle.
  8. Connect the negative battery cable.
AOD Transmission


Removing the AOD neutral start switch
  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle on jackstands.
  3. Disconnect the wiring from the switch.
  4. Using a deep socket, unscrew the switch.
  5. Installation is the reverse of removal. Tighten the switch to 10 ft. lbs. (14 Nm).
  6. Remove the jackstands and lower the vehicle.
  7. Connect the negative battery cable.
4R70W Transmission


Removing the Manual Lever Position (MLP) sensor

As of 1994, the neutral safety switch is referred to as a Manual Lever Position Sensor (MLP).
  1. Disconnect the negative battery cable.
  2. Raise and safely support the vehicle on jackstands.
  3. Disengage the harness connector from the MLP sensor.
  4. Remove the 2 sensor attaching bolts and remove the sensor.
To install:
  1. Install the MLP sensor and install retaining bolts. Do not tighten, the sensor requires adjustment.
  2. Adjust the MLP sensor then tighten attaching screws to 80-100 inch lbs. (9-11 Nm).
  3. Remove the jackstands and lower the vehicle.
  4. Connect the negative battery cable.


C6 Transmission
  1. Hold the steering column transmission selector lever against the Neutral stop.
  2. Move the sliding block assembly on the neutral switch to the Neutral position and insert a 0.091 in. (2.3mm) gauge pin in the alignment hole on the terminal side of the switch.
  3. Move the switch assembly housing so that the sliding block contacts the actuating pin lever. Secure the switch to the outer tube of the steering column and remove the gauge pin.
  4. Check the operation of the switch. The engine should only start in Neutral and Park .

4R70W Transmission


Adjusting the MLP sensor

Park is the last detent when the manual control lever is full forward. Return 2 detents toward the output shaft for Neutral.
  1. Position the manual control lever in Neutral .
  2. Insert Gear Position Sensor Adjuster tool T93P-700 10-A or equivalent, into the slots.
  3. Align all 3 slots on the MLP sensor with 3 tabs on the tool.
  4. Tighten the attaching screws to 80-100 inch lbs. (9-11 Nm).

I hope help you. Good luck (rated this help).

Posted on Sep 18, 2009

  • 424 Answers

SOURCE: I need to bypass the neutral safety switch in my

The color of the two wires shouls be either red with a blue stripe or blue with a red stripe.

Posted on Jan 13, 2010

  • 4803 Answers

SOURCE: what wires do I need

The wires on the Transmission Range Sensor that control the ability to crank the starter are the BLACK/GREEN wire at Pin 6 and the wire at Pin 10 which is either BLACK/GREEN or BLACK WHITE depending on your model. (build - date and transmission type)

With all that said, I think it only fair to warn you that bypassing these wires will set codes in your Engine Control Module. It is not going to like it if there is power at pin 10 with the transmission in reverse or any of the forward gears. This may also cause your transmission to not shift properly because the ECM will not know for sure what gear you are in.

Posted on May 10, 2011

Testimonial: "thanks so much for the information I will install a switch and only use it when needed and to ensure that this is my problem."

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How to wire a neutral safety switch for 96 voyager?

Unless you broke into more wiring than you should have, the tach & fuel gauge should have nothing whatever to do with the neutral safety switch.

Shortly, the neutral safety switch requires only two contacts that should "make" connection when the vehicle is either in Park or in Neutral, but no other time. That connection should energize a relay under the hood that makes it possible for your key to energize the starter solenoid and crank the engine. It (the neutral safety switch) MAY additionally have anything from one to a dozen other connections - to indicate the shifter position, for example.

Some vehicles use two switches, discrete from each other, to function as a neutral safety switch and a shifter position ("PRNDL", pronounced "prindle") switch. Yours apparently has a PRNDL switch separate from your neutral safety switch... so the third contact is somewhat of a mystery to me.

Try to return everything under there to as close to original as possible, and we'll start over with this. If you cut any wires, splice them back together. If you spliced any wires, take them back apart.

To fulfill its purpose, a neutral safety switch needs to have some power coming TO it and some power coming back OUT of it. It acts as a valve for that power - P or N open the valve, all other positions close the valve. So... you need to determine which two contacts are CONNECTED when the shifter is in P or N but are not connected any other time. You'll want a meter, I'm pretty sure. to find those two switch contacts. Identify them, make a note on a slip of paper, take a photo with your phone or camera, whatever. Remember those two.

Now find the connector that used to connect to the old switch. One of its contacts will have some amount of electricity (probably 12V or near to 12V) on it WHEN THE KEYSWITCH IS TURNED TO START. Have an assistant sit there holding the key in the start position while you check for voltage. Voltage should NOT be present on that wire when the keyswitch is NOT in the start position. Remember that wire by color. Write it down on your slip of paper, take a photo, remember it.

You have only one wire left to identify - thats the one that your neutral safety switch uses to energize the relay under the hood, and it's easiest identified by making a quick temporary jumper from the START wire (which you just identified) to each of the other two contacts in the same connector WHILE your helper holds the key in the START position. Transmission really in P, of course, so your helper doesn't inadvertently start the vehicle and turn you into squished sausage. So... just touch your jumper from the START wire to each of the other two wires, one at a time. One of them will trigger the starter motor and the vehicle will try to start. Remember which wire that was - by color, photo, whatever.

Now you have your two valuable wires and you know which are your two valuable connections on the switch. Connect your two valuable wires to the two valuable connections and be happy. Please make the best possible connections by the best means you can muster. You won't want to do this again, at 11:30PM on a Sunday night, in a November rainstorm, in a mud puddle, with lightening crashing around near you, while the zombies slowly creep nearer and nearer to your hiding place. You can see them, you can hear them, and you really need to get away from them NOW. You want it to start NOW. Make that a good splice.

Jul 30, 2014 | 1996 Plymouth Voyager

2 Answers

1994 toyota camry theres power inside but when you turn the key nothing happens

have your fuses checked, or have your started checked, it might have burned out.

Dec 28, 2013 | 1994 Toyota Camry

1 Answer

Where can i find a wiring diagram for neutral safety switch for 2003 neon

The DK BLU/WHT wire from 15A fuse 10 in the fuse block connects to terminal 2 of the brake transmission shift interlock solenoid. The WHT/PINK wire from the brake lamp switch connects to terminal 1.

Apr 09, 2013 | 2003 Dodge Neon

1 Answer

Tried to start 2001 chev blazer, would not jump from another vehicle, wont start put it in neutral , rolled back vehicle then started, does it whenever it feels like it, new battery,alternator, etc ...

I'm using this older report to include an attached photo of the Connector that plugs onto the Neutral Safety Switch...Note that the top row has 4 female pins...These are signal wires for the transmission and not involved with the starting contacts of the switch...The switch has more then one set of contacts because it performs multiple tasks...We are interested in the bottom row of 3 female contacts...The 3 wires have the following colors; Black/White= the chassis ground input...Purple and Purple white= The Neutral/Park Safety contacts...It is these two wires that connect when the switch is closed when placed in Park or Neutral...When a new connector is installed, as you can see, all the wires are White and are spliced to the factory colors...The two outside pins in the bottom row of three pins (not the one in the middle) are the Purple and Purple/White wires...Push the points of two safety pins into the rear of the in-place connector into the two outside slots until they touch the pins that the wires are crimped to and connect a multimeter set on the X1 ohm scale to these two safety pins; Put the shift lever in Park and then Neutral (key OFF) You must read zero ohms as in a dead short...This proves that #1...The contacts are properly closing...And #2...That the wiring is correct...When in Park/Neutral Battery is supplied to the Starter Relay Which pulls allowing the Starter to run...send a comment

Aug 22, 2011 | Chevrolet Blazer Cars & Trucks

1 Answer

Need location of neutral safty switch on my 1990 cadilac broughm 350 engin e

The neutral safety switch is located on the top and toward the base of the steering column almost to the floorboard.

To remove or install the neutral safety switch be sure to place the shifter in the neutral position, then dis-connect the wire connector at the neutral safety switch, then remove the securing screws and then remove the neutral safety switch.

Install the new neutral safety switch and do not over-tighten the securing screws, then remove the alignment pin and re-connect the wire connector to the neutral safety switch. (be sure not to remove the alignment pin until the neutral safety switch has been installed)

Check to be certain that the vehicle only starts in "Park" or "Neutral". Here is an image to help assist you, and let me know if you require any further assistance.


Sep 12, 2010 | Cadillac Brougham Cars & Trucks

2 Answers

Bronco wont start 88 ford bronco just replaced tranny and now won't start. i've hooked everything back up but one of the wires to the transfer case bc i broke the plug in. any ideas why it wont start...

The neutral safety switch is located on the side of the transmission and it is usually attached behind the shifter linkage and it is secured with two small bolts that can be loosened up to allow for adjustment of the neutral safety switch.

To adjust the neutral safety switch place the transmission into neutral, (block the tires) there is a notch or and indent marker on the housing of the neutral safety switch that should be lined up with a line on the face of the collar that is around the shifter detent shaft, and if they are not in alignment then loosen the two bolts that secure the neutral safety switch and then turn the neutral safety switch until they are aligned and then tighten the securing bolts to the neutral safety switch, and then test the starter. If the starter fails to engage then either the neutral safety switch is faulty, the neutral safety switch has been by-passed all this time and the by-pass (I will usually find things like a paper clip shoved into the vehicles wire connector with electrical tape around it) has fallen out of the wire connector from the vehicle wiring harness, or the battery just went dead. if you have the neutral safety switch from the old transmission still available try using it to test the neutral safety circuit. I have provided you with an image to help assist you adjust the neutral safety switch.


Jun 20, 2010 | 1988 Ford Bronco

1 Answer

Subaru ea81 starter solenoid wiring diagram

Some starter solenoids are mounted on the fender near the battery and some are on the starter itself.

Typically the ones mounted on the fender have two larger posts and one smaller post. For the larger posts: One connects strait to the positive post on the battery. The other connects strait to the starter. The smaller post connects to the neutral safety switch which connects to the start position of the ignition switch. Here is a diagram. Make sure the solenoid is grounded good.

For the solenoid that is mounted on the starter: Connect the positive post of the battery to the large post on the starter. Connect smaller neutral safety switch/ignition switch wire to the smaller post.

Here is a diagram if you have both solenoids

Don't forget to hook backup any other wires that were hooked to the positive side of battery/solenoid like alternator wire etc.

Sep 11, 2009 | 1987 Subaru Brat

1 Answer

Where is the neutral safety switch located on a 91 nissian sentra

On both Nissans I've owned (90 Sentra and 90 300ZX) the neutral safety switch was on the side of the transmission. If you look down there, you'll see wire connectors (probably 3 of them) going to connections near or on the transmission - one of those should lead you to the neutral safety switch.

Jul 21, 2008 | Nissan Sentra Cars & Trucks

1 Answer

I need the color of the two wires at the transmission neutral safty switch that connects the starter

You have 2 Red wires going to the starter relay, one from the positive side of the battery and the other from the starter. There is 1 wire from the starter relay to the neutral safety switch, which is Red / Lt. Blue, and 2 wires coming from the neutral safety switch, one that is Red / Lt. Blue that goes to the ignition switch, and the other which is Gray / Yellow that goes to the #30 connector in the Engine Control Module, and that is for automatic transmissions only.

Jul 20, 2008 | Ford F-150 Cars & Trucks

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