Re: Bypassing neutral saftey switch?
 

I found something in the Haynes manual (Cherokee 1984-2000, page 7B-5)
that might be helpful. It is for the 4 speed auto trans. It appears
that everything transmission related goes through that switch, not just
neutral/park and back up. The wiring diagrams use numbers instead of
these letters so it was no help.

X
E F G H
D C B A

The X shows the locking tab

P B-C
R A-E
N B-C
D (blank)
3 A-G
1-2 A-H

If this problem happened to me, I would disconnect the connector and
jumper the wires. But you won't have backup lights and you should stay
in D so you don't confuse the computer. Or trace the B and C wires to
an accessable location and strip the wires enough to install a jumper
and switch to see if that will work. Just be sure to put some liquid
electrical tape on the bare wires.

When my ignition switch melted in the middle of winter, I put a jumper
on the solenoid and a heavy duty switch on the dash. I replaced the
ignition switch when the weather got nicer, but I still use the dash
mounted switch so I won't have the problem again. The starter sucks a
lot of amps and it only takes a poor connection to quickly melt the
connector, transmission switch or wires.

Merrill

Mike Romain wrote:
> Have you seen this link?
>
> http://www.dirtdevils.org/XJNutralSwitch.htm
>
> I am not sure which wire you need to cut though. Some neutral switches,
> like on a CJ or YJ just send a ground signal to the starter relay.
> Those ones can be bypassed at the fender just by putting a ground wire
> on at the relay.
>
> If I went into the wiring diagram I could likely figure it out, but...
>
> Here is a link to early XJ wiring http://----------.com/romain/
>
> Mike
>
> redlinescooby@hotmail.com wrote:
> >
> > It's an automatic. I just went out an cleaned the contacts again and
> > it still would not fire up. I'd like to cut the wires and totally
> > bypass the switch. I'm going to retire it as soon as I find a
> > replacement vehicle.
> >
> > Sam
> >
> > Mike Romain wrote:
> > > Are you driving an automatic or a standard?
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > > Canadian Off Road Trips Photos: Non members can still view!
> > > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> > > (More Off Road album links at bottom of the view page)
> > >
> > > redlinescooby@hotmail.com wrote:
> > > >
> > > > I have a 91 Cherokee with 200k+ miles on her and a worn out NSS. A new
> > > > one will set me back $200 and the Jeep is only worth about $1000 or so.
> > > > I have cleaned the NSS twice and the last time only lasted 2 weeks
> > > > before it quit again. I would like to bypass this switch, so that I
> > > > can drive it, shile I search for a replacement. Does anyone know of a
> > > > way to bypass the NSS?
> > > >
> > > > Thanks,
> > > >
> > > > Sam

Re: Bypassing neutral saftey switch?
 

I found something in the Haynes manual (Cherokee 1984-2000, page 7B-5)
that might be helpful. It is for the 4 speed auto trans. It appears
that everything transmission related goes through that switch, not just
neutral/park and back up. The wiring diagrams use numbers instead of
these letters so it was no help.

X
E F G H
D C B A

The X shows the locking tab

P B-C
R A-E
N B-C
D (blank)
3 A-G
1-2 A-H

If this problem happened to me, I would disconnect the connector and
jumper the wires. But you won't have backup lights and you should stay
in D so you don't confuse the computer. Or trace the B and C wires to
an accessable location and strip the wires enough to install a jumper
and switch to see if that will work. Just be sure to put some liquid
electrical tape on the bare wires.

When my ignition switch melted in the middle of winter, I put a jumper
on the solenoid and a heavy duty switch on the dash. I replaced the
ignition switch when the weather got nicer, but I still use the dash
mounted switch so I won't have the problem again. The starter sucks a
lot of amps and it only takes a poor connection to quickly melt the
connector, transmission switch or wires.

Merrill

Mike Romain wrote:
> Have you seen this link?
>
> http://www.dirtdevils.org/XJNutralSwitch.htm
>
> I am not sure which wire you need to cut though. Some neutral switches,
> like on a CJ or YJ just send a ground signal to the starter relay.
> Those ones can be bypassed at the fender just by putting a ground wire
> on at the relay.
>
> If I went into the wiring diagram I could likely figure it out, but...
>
> Here is a link to early XJ wiring http://----------.com/romain/
>
> Mike
>
> redlinescooby@hotmail.com wrote:
> >
> > It's an automatic. I just went out an cleaned the contacts again and
> > it still would not fire up. I'd like to cut the wires and totally
> > bypass the switch. I'm going to retire it as soon as I find a
> > replacement vehicle.
> >
> > Sam
> >
> > Mike Romain wrote:
> > > Are you driving an automatic or a standard?
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > > Canadian Off Road Trips Photos: Non members can still view!
> > > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> > > (More Off Road album links at bottom of the view page)
> > >
> > > redlinescooby@hotmail.com wrote:
> > > >
> > > > I have a 91 Cherokee with 200k+ miles on her and a worn out NSS. A new
> > > > one will set me back $200 and the Jeep is only worth about $1000 or so.
> > > > I have cleaned the NSS twice and the last time only lasted 2 weeks
> > > > before it quit again. I would like to bypass this switch, so that I
> > > > can drive it, shile I search for a replacement. Does anyone know of a
> > > > way to bypass the NSS?
> > > >
> > > > Thanks,
> > > >
> > > > Sam

Re: Bypassing neutral saftey switch?
 

I found something in the Haynes manual (Cherokee 1984-2000, page 7B-5)
that might be helpful. It is for the 4 speed auto trans. It appears
that everything transmission related goes through that switch, not just
neutral/park and back up. The wiring diagrams use numbers instead of
these letters so it was no help.

X
E F G H
D C B A

The X shows the locking tab

P B-C
R A-E
N B-C
D (blank)
3 A-G
1-2 A-H

If this problem happened to me, I would disconnect the connector and
jumper the wires. But you won't have backup lights and you should stay
in D so you don't confuse the computer. Or trace the B and C wires to
an accessable location and strip the wires enough to install a jumper
and switch to see if that will work. Just be sure to put some liquid
electrical tape on the bare wires.

When my ignition switch melted in the middle of winter, I put a jumper
on the solenoid and a heavy duty switch on the dash. I replaced the
ignition switch when the weather got nicer, but I still use the dash
mounted switch so I won't have the problem again. The starter sucks a
lot of amps and it only takes a poor connection to quickly melt the
connector, transmission switch or wires.

Merrill

Mike Romain wrote:
> Have you seen this link?
>
> http://www.dirtdevils.org/XJNutralSwitch.htm
>
> I am not sure which wire you need to cut though. Some neutral switches,
> like on a CJ or YJ just send a ground signal to the starter relay.
> Those ones can be bypassed at the fender just by putting a ground wire
> on at the relay.
>
> If I went into the wiring diagram I could likely figure it out, but...
>
> Here is a link to early XJ wiring http://----------.com/romain/
>
> Mike
>
> redlinescooby@hotmail.com wrote:
> >
> > It's an automatic. I just went out an cleaned the contacts again and
> > it still would not fire up. I'd like to cut the wires and totally
> > bypass the switch. I'm going to retire it as soon as I find a
> > replacement vehicle.
> >
> > Sam
> >
> > Mike Romain wrote:
> > > Are you driving an automatic or a standard?
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > > Canadian Off Road Trips Photos: Non members can still view!
> > > Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> > > (More Off Road album links at bottom of the view page)
> > >
> > > redlinescooby@hotmail.com wrote:
> > > >
> > > > I have a 91 Cherokee with 200k+ miles on her and a worn out NSS. A new
> > > > one will set me back $200 and the Jeep is only worth about $1000 or so.
> > > > I have cleaned the NSS twice and the last time only lasted 2 weeks
> > > > before it quit again. I would like to bypass this switch, so that I
> > > > can drive it, shile I search for a replacement. Does anyone know of a
> > > > way to bypass the NSS?
> > > >
> > > > Thanks,
> > > >
> > > > Sam