Do I need to bypass the neutral safety switch when swapping from 32RH to AX-15?

Vernons

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when i swapped my auto to my ax15 in my 95 cherokee, i had to bypass the neutral safety switch.

so now i have a 98tj that i am swapping an auto to a ax15, and i am wondering if i will have to do the same thing.
i have the transmission in but i have not tried to start it yet
 
My guess would be yes. The standard transmissions have a clutch depress switch to avoid starting when in gear. You could wire this up to replace it.
 
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i am still trying to figure out how to bypass the nss for the automatic. i removed the dash today and removed the harness under the dash cause it had the 4 cylinder in this jeep. i installed the harness that was in the 6 cylinder in the 4 cylinder dash. i never had time to install the dash cause i want to replace the heater core while i am in their.

once i get the dash back in, if i find a way to make it start with the key i will post it so maybe it will help someone else
 
i found some help on another forum. wanted to post on this one so maybe it will help someone else.

i cut the plug off the harness that plugs into the automatic transmission.
i spliced two of the wires together to bypass the nss.
the other two wires are for the back up lights.
i will connect them to the manual transmission
seems to work very good.

allot of people have said that the 4 cylinder to 4.0 is a waste of time.

i seem to have not had any real problems. everything is pretty much straight forward plug and play.

i may have problems with the computer since it came from a 4.0 auto and not it is a 4.0 5 speed.

who knows. i did a 2 wheel drive to 4 wheel and a auto to manual on a 95 cherokee. everything is kinda the same, jst takes time
 
when i swapped my auto to my ax15 in my 95 cherokee, i had to bypass the neutral safety switch.

so now i have a 98tj that i am swapping an auto to a ax15, and i am wondering if i will have to do the same thing.
i have the transmission in but i have not tried to start it yet
When you hook up the reverse light connection on the AX-15 with the correct harness, it does the "bypass" automatically.
 
Well since my wiring harness is for an automatic, I don’t think this will work for me. I will just splice the two wires to bypass the nss. And connect the other two wires to have reverse lights.

I don’t have access to a different wiring harness and honestly I don’t see the point in spending the money since I have what I need now.

All I needed was the information as to what two wires do I splice together?

Now that I know then I am good.

The body that I am using was a 5 speed. So the nss on the clutch pedal provides protection from start in gear.
 
Well since my wiring harness is for an automatic, I don’t think this will work for me. I will just splice the two wires to bypass the nss. And connect the other two wires to have reverse lights.

I don’t have access to a different wiring harness and honestly I don’t see the point in spending the money since I have what I need now.

All I needed was the information as to what two wires do I splice together?

Now that I know then I am good.

The body that I am using was a 5 speed. So the nss on the clutch pedal provides protection from start in gear.
In 98, the only differences between the auto and manual harness is that the NSS and TCC adapter harness is present for the auto. It unplugs right over the trans and a small adapter harness for the manual goes in its place.

The second difference is the Clutch Safety Switch (which is another in the NSS series circuit) is plugged into a connector on the firewall/left side footwell to complete the NSS circuit so the auto will start. When you convert to the manual, you unplug that and connect it to the CSS on the clutch pedal. There is only one harness for both trans options.

The one at the trans is a short harness that looks similar to this.
1575641722834.png
 
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I swapped the harness under the dash for the one out of the 4.0 dash.
I could not get the motor to turn over till in spliced the wires together.

I did not see another plug for the ax15.

So maybe I am missing something. But it is working now the way I have it
 
In 98, the only differences between the auto and manual harness is that the NSS and TCC adapter harness is present for the auto. It unplugs right over the trans and a small adapter harness for the manual goes in its place.

The second difference is the Clutch Safety Switch (which is another in the NSS series circuit) is plugged into a connector on the firewall/left side footwell to complete the NSS circuit so the auto will start. When you convert to the manual, you unplug that and connect it to the CSS on the clutch pedal. There is only one harness for both trans options.

The one at the trans is a short harness that looks similar to this.
View attachment 127900
Do you have a part number for this plug? Or know where to get it?
 
The connector on the right is a standard automotive connector made by Framatome. The NSS connector varies depending what year the 32rh came from. Get the correct NSS pigtail(rockauto sells these) and then get a Framatome Apex 2.8 4 way male black connector with pins for the connector on the right.

Connector - https://www.mouser.com/ProductDetail/Aptiv-formerly-Delphi/54200413?qs=HumNWfwekiFizucwU%2BkqMQ==

terminals - https://www.mouser.com/ProductDetail/?qs=BfWxhSndWVuNyNctiONiFA==

early nss connector - https://www.rockauto.com/en/moreinfo.php?pk=2061234&cc=1185285

later nss connector - https://www.rockauto.com/en/moreinfo.php?pk=3450093&cc=1386873&jsn=1444
 
The connector on the right is a standard automotive connector made by Framatome. The NSS connector varies depending what year the 32rh came from. Get the correct NSS pigtail(rockauto sells these) and then get a Framatome Apex 2.8 4 way male black connector with pins for the connector on the right.

Connector - https://www.mouser.com/ProductDetail/Aptiv-formerly-Delphi/54200413?qs=HumNWfwekiFizucwU%2BkqMQ==

terminals - https://www.mouser.com/ProductDetail/?qs=BfWxhSndWVuNyNctiONiFA==

early nss connector - https://www.rockauto.com/en/moreinfo.php?pk=2061234&cc=1185285

later nss connector - https://www.rockauto.com/en/moreinfo.php?pk=3450093&cc=1386873&jsn=1444
Thanks! My kid bought a 01 that was a auto. The previous put a manual in it. It runs and drives. Everything works except the backup lights. First Jeep not familiar with them at all. I imagine the nss is bypassed? You don’t have to push the clutch in to start it tho. Once I fix the reverse lights and get a new clock spring and multi switch I believe I’ll have all the wiring straightened out.
 
The NSS supplies ground to the start relay. On a manual equipped jeep, the starter relay is constantly grounded. the Clutch switch provides a path for power to the starter relay. On an auto jeep this path goes through a fuse instead of the clutch switch.

you need to crawl up under the jeep, possibly remove the transmission skid and take a look at the harness above the transmission.

-Is the reverse light switch plugged in?
-if not, can you find the female 4 pin connector that the above connector would mate with?
 
It’s getting dark here and the Jeep’s outside. I’m going to include a pic. It looks like a switch is plugged in but it doesn’t look like the switch I’ve seen pics of online. Then there’s another wire not hooked to anything. I’m assuming it was leftover from the auto? Or maybe that’s the wire I need and it has the wrong switch in it?

615A720D-DC1B-467F-9A18-381296571C09.png
 
It’s getting dark here and the Jeep’s outside. I’m going to include a pic. It looks like a switch is plugged in but it doesn’t look like the switch I’ve seen pics of online. Then there’s another wire not hooked to anything. I’m assuming it was leftover from the auto? Or maybe that’s the wire I need and it has the wrong switch in it?

View attachment 208619
The bigger plug with the red locking clip on it has the smaller plug at the top of the pic thats not plugged into anything. What I believe is the reverse light switch has the two wires plugged in that leads to another plug that goes towards the rear. I haven’t traced that out yet.
 
If that loose connector up top is a 3 pin, that is the NSS connector. I’ve never seen a reverse light switch that looks like what you have. It sounds like your previous owner may have ran his own... the reverse light switch should go into that 4 pin connector with the red locking tab.

I would follow those 2 wires and see where they go. My guess is they are splices in the back near the lights.
 
If that loose connector up top is a 3 pin, that is the NSS connector. I’ve never seen a reverse light switch that looks like what you have. It sounds like your previous owner may have ran his own... the reverse light switch should go into that 4 pin connector with the red locking tab.

I would follow those 2 wires and see where they go. My guess is they are splices in the back near the lights.
Ok at least I’m getting somewhere. And I appreciate your help and knowledge!
so if I go buy the right switch and plug then get the plug to connector to plug into the factory harness they should work? Then obviously trace his wires out and undo what he did.
 
I would trace his wires first.... I’m really confused what he did.

if you grab that loose connector up top, and jump the two outside pins together, the reverse lights should come on(with the key on). If they don’t, you have further harness issues from the previous owner.
 
One of those wires should have 12v on it so be careful with whatever you use to jump those pins together..
 
I would trace his wires first.... I’m really confused what he did.

if you grab that loose connector up top, and jump the two outside pins together, the reverse lights should come on(with the key on). If they don’t, you have further harness issues from the previous owner.
I’ll try that tomorrow eve after work. I really do appreciate the help!
One of those wires should have 12v on it so be careful with whatever you use to jump those pins together..
what do you recommend? I was going to take a piece of wire and stick a end of it in each end of the connector then turn the key on. Good idea or no?
 
A piece of wire or a paperclip would work, just special care should be taken to ensure that it doesnt touch anything. Worst case it blows a fuse. I just wanted to make sure you knew that.