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-   -   HOWTO: Clutch Interlock Bypass (http://www.wranglerforum.com/f210/howto-clutch-interlock-bypass-11415.html)

rketr 09-13-2007 12:16 AM

HOWTO: Clutch Interlock Bypass
 
For safety sake, clutch based vehicles come with a system that requires you to press the clutch so you can start the vehicle. This is great for normal operation, but not really desireable for offroad. i.e. how many times have you been facing up to the sky, stalled the engine, had to push the clutch to start the engine, and had the rig bounce or roll back when you do?

Here's how to bypass the clutch interlock.

*disclaimer* The notes below are for an '03 TJ. Your rig is likely different...check the owners manual.

According to the owner's manual for my '03 TJ, to bypass the clutch interlock, simply pull the spare 20amp fuse from position 19 in the fuse panel behind the glove box and put it in position 20.
http://3cranch.org/oddpics/clutchint...withdetail.jpg

That is it. You are done.

However, I wanted to make it a switchable thing where I didn't have to move fuses and whatnot while stalled on a 132 degree incline.

Here's what you'll need. I picked up my stuff at O'Reilly for just under $8 bux.
- 1 box of 20amp fuses (I didn't have any spares...$2.59)
- 1 mini fuse holder ($1.79)
- 1 red rocker switch ($2.99)
also a couple feet of spare 14guage wire and various connectors

The wiring diagram looks as follows:
http://3cranch.org/oddpics/clutchint...ingdiagram.jpg

So...here we go. The full install should take less than 1/2 an hour...

1. Find a good location to mount your switch. I used one of the available ones above the cig lighter.

2. Make sure the mini fuse holder does not have a fuse in it (you'll add that later)

3. Connect the 'power' lead from the rocker switch to one of poles in position 20 of the fuse box

4. Connect the 'accessory' lead from the rocker switch to the mini fuse holder

5. Connect the other side of the mini fuse holder to the other pole of position 20 in the fuse box
http://3cranch.org/oddpics/clutchinterlock/IMG_1249.jpg

NOTE: don't know if it is the best way, but I purposely blew one of the 20amp fuses and wedged it in place to hold the wires in the fuse box. (let me know if you know of a better way...)
http://3cranch.org/oddpics/clutchint...withdetail.jpg

6. Connect the 'ground' lead from the rocker switch to a good ground source (I tapped the cig lighter)

7. Put a 20amp fuse in the mini fuse holder.

8. Test it out:
- pull the e-brake
- make sure you are not in gear
- with the switch in the off position and your foot off the clutch, try to start the vehicle. It should not start. This is the normal operating position.
- turn the switch on, and try again. The Jeep should start.

9. Put everything back together.

Here's the end result for mine:
http://3cranch.org/oddpics/clutchinterlock/IMG_1252.jpg

In case you are curious; the switches are:
http://3cranch.org/oddpics/clutchint...withdetail.jpg

There ya go

debruins 09-13-2007 07:13 AM

in 97's i know that it is not this, it hnas something to do with wires and bypass wires up under the dash, look in the manual depending on what year you have before you do this

04X68bronc 02-06-2011 04:38 PM

The instructions for the 03 is the same for the 04. I have a 04 X 4.0 manual. put spare fuse in and started right up. Now I can keep the wife happy and put in the remote starter. YEA

xpertshooter 03-15-2012 03:32 PM

This is dumb, but why wouldnt I be able to view the photos that you have posted for the installation of your clutch override switch. Is there something wrong with my browser, what type of tech problem am I having, I sure would like to be able to see photos on this forum, can anyone help?

freeskier 03-15-2012 03:38 PM

1997 was the only year you had to move around the switch plugs. All following years were a fuse.

Just leave the fuse in all the time and call it done. I've had the clutch interlock bypassed since day one. I always have the parking brake on so the 1 or 2 times I've accidentally tried to start it in gear it does nothing but rock the jeep forward and inch or two.

Patrick H 03-15-2012 04:51 PM

Quote:

Originally Posted by xpertshooter (Post 2143762)
This is dumb, but why wouldnt I be able to view the photos that you have posted for the installation of your clutch override switch. Is there something wrong with my browser, what type of tech problem am I having, I sure would like to be able to see photos on this forum, can anyone help?

Probably because the pics have been removed from wherever he hosted them 4 1/2 years ago when he posted that..

Jerry Bransford 03-15-2012 05:54 PM

Quote:

Originally Posted by freeskier (Post 2143780)
1997 was the only year you had to move around the switch plugs. All following years were a fuse.

Moving a connecter came back in later years. My 2004 makes you move a connector.

I agree on leaving the interlock bypassed. Car and truck clutches never needed interlocks before the lawyers got involved.

freeskier 03-15-2012 06:19 PM

Quote:

Originally Posted by Jerry Bransford (Post 2144224)
Moving a connecter came back in later years. My 2004 makes you move a connector.

I agree on leaving the interlock bypassed. Car and truck clutches never needed interlocks before the lawyers got involved.

I can never keep those oddities straight.

Best to just look in the owners manual, it will tell you how to bypass the interlock.

rketr 02-24-2013 10:23 PM

Quote:

Originally Posted by xpertshooter (Post 2143762)
This is dumb, but why wouldnt I be able to view the photos that you have posted for the installation of your clutch override switch. Is there something wrong with my browser, what type of tech problem am I having, I sure would like to be able to see photos on this forum, can anyone help?

Yeah, my site got nuked and I lost all my files.

Fixed it...hopefully they're all back up.


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