Neutral safety switch 3 wire colors/or bypass -
LinkBack Thread Tools
post #1 of 5 Old 06-01-2011, 07:18 PM Thread Starter
Registered User
2001 WJ 
Join Date: Apr 2011
Location: Elyria
Posts: 21
Wj Neutral safety switch 3 wire colors/or bypass

Recently I had a Park neutral switch going bad code on my 2001 WJ Grand Cherokee 4.0 I bought the new switch, but when I went to change it out, the 3 wires on the connector are all exposed and frayed/melted. So I went to my local Jeep dealership to get a new CONNECTOR, but they can't get them. So I went to my local junkyard... no WJ's. I cut the end of the connector off, tried to splice in some fresh wires and heatshrunk the exposed wires. Upon rehook up, it will not start. I don't know if I mixed up the order of the three wires or what. Kinda hard to tell the exact colors of the wires (being under the car and covered in grease), but I think they are GREEN, YELLOW striped with unknown color, and TAN. Am I close here? I can't find any wiring diagram for it in the back of the Haynes manual. I'm guessing when I reconnected it all, that it's either wrong, or the connector is so frayed that it's not getting any juice. I've read about bypassing it by grounding the center wire, but I don't know which one was the center wire now. If I do bypass it, will I have problems with my backup lights? Will my check engine light turn off finally?
I noticed that when you snap the connector back on, there is no catch/stop so is it possible to put it on backwards/upside down?
I need help here. This is driving me crazy. Anyone got a diagram with color codes or advice about bypassing it?

TheGeek is offline  
Sponsored Links
post #2 of 5 Old 04-03-2012, 06:59 PM
Registered User
Join Date: Dec 2005
Location: Winnipeg Manitoba
Posts: 117
exact same problem. replaced frayed wires after getting the code and now it wont fire. Any ideas anyone??

she's a real grand Rio Grande: 4" RE, 35" pro comp's, trail damage
longdecember is offline  
post #3 of 5 Old 05-01-2012, 12:39 AM
Registered User
2001 WJ 
Join Date: Oct 2011
Location: 39 12' N 78 10' W
Posts: 577
Did you have any luck I'm doing that tomorrow and could really use a reference. Thanks

2005 Grand Cherokee Limited - 5.7 HEMI - QDII - 2" Rough Country BB - AFE Stage 2 CAI - Monkey Navigated - Rear Shackle

2001 WJ- SOLD

Originally Posted by mrJ
It's a Jeep, it's not supposed to work right all the time.
Dasko is offline  
post #4 of 5 Old 05-01-2012, 06:44 AM
Registered User
rm2001wj's Avatar
2001 WJ 
Join Date: Aug 2005
Location: Memphis, TN
Posts: 3,252
This image is from the 01 FSM. In case you need a translation: VT/BK = violet/black, BR/YL - brown/yellow, and WT/TN = white/tan.
Attached Thumbnails
rm2001wj is offline  
post #5 of 5 Old 05-04-2012, 01:00 PM
Registered User
1997 ZJ 
Join Date: May 2011
Location: Regina
Posts: 81
Awesome, this thread isnt 2 years old. I have a 1997 Grand Cherokee 4.0l. I did a transmission swap to a ax15. Standards dont have a NSS. My 42RE has the 3-pin/3-wire NSS that goes to the back up lights as well. Which wire do I ground to start and have my Jeep run? The Middle one, as per your diagram?

Thanks in advance!
97CherokeeSport is offline  

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Replacing Neutral Safety Switch - a few questions 00RedWJ WJ Grand Cherokee Forum 2 05-14-2011 11:37 AM
Disabling Neutral Switch... Downside? zBeeble WJ Grand Cherokee Forum 6 04-03-2011 06:16 PM
Switch mounting location and how to wire through the dash? JeeperCreeper94 WJ Grand Cherokee Forum 11 01-20-2011 07:47 PM
2003 grand cherokee 42re- neutral safety switch sp3 WJ Grand Cherokee Forum 0 06-30-2010 12:51 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome