Greg Smith Power door locks writeup PRE-1991

[Cherenix88]

Man I hope this thread still has legs...

So I did the mod and the locks give a healthy clunk but here's where I'm confused. My driver's side rear door lock works in reverse. All the other's work correctly. Looking at the wiring diagram and seeing how all the others work correctly this has me baffled. Now to be clear since they never worked before I don't know if someone messed around in the past and wired the actuator in backwards? Anyhow maybe there's something obvious I'm missing; chime in if you have any thoughts.

[Cherenix88]

Alright so I opened up the door panel, unplugged the actuator and swapped the tan and green wires in the female connector, plugged it back in and everything works fine. Someone must have messed around in there years back.

Here's a tip. Run the 10 gauge wire from the starter solenoid lug to your power wires. I tried the other option of splicing into the red power wire that goes into the door and sometimes one lock would stick part way. When I wired in a new power wire they all slam open and closed with no issues.

There's small round hole, looks to be 1/4" on the side of the inner fender near the top where it meets the firewall and the hood. I drilled that out to fit in a rubber grommet to protect the wire. I popped out the rubber antenna bung behind the passenger side kick panel and since there is enough meat I carefully drilled a hole for the new wire. I fed the wire between the inner and outter fender. You can manipulate it with a coat hanger or hook of some kind as Greg mentioned through the gap between the two fenders when the passenger door is open. With that bung removed you can fit your index finger through the hole. Then just pull the wire through, feed it through the new hole in the rubber plug and re-install the plug. Don't forget to install a new 30A inline fuse.

[90XJ_Seth]

This is where I am struggling. Can I run ALL ground wires stated to one ground location? The 87a, and 85 from each relay? I have the following:
87 receives power from 10ga with 30 amp fuse
86 receives tan or Lgreen from the door side
30 receives tan or Lgreen from the front side
87a and 85 are all grounds that run to the same ground point.(this is where I'm pretty sure I'm wrong)

[cruiser54]

Sure, everything can ground at the same place.

[marcoleo]

I confirm the grounds all togheter:
http://www.jeeptuning-foto.com/album...two-relays.pdf

[90XJ_Seth]

Blown two 30 amps somehow. Then put back to original and only the passenger side door will try to even unlock, refuses to lock. Nothing from driver side.

[90XJ_Seth]

Ok so what I've found is the tan line that runs the open is working fine. The light green line that runs the lock switch shorts out for some reason when power given directly to the circuit. I can't seem to figure out why.

[90XJ_Seth]

At this point I know something is messed up in my wiring. I can get the passenger side to unlock all doors just fine when back to original wiring. However when I try to lock doors from passenger side I get no electronic response. The driver's side will also not unlock or lock electronically. On top of that if I supply power directly to the lock side of the wiring on the passenger solenoid it blows a 30amp fuse. I've opened the looms in and outside of the door, checked for contacting wires and found none. I repaired a small split in one of the insulating jackets but it didn't affect anything. Is there a fuse I am missing or is it possible my wiring has fused together somewhere and is causing this problem? I've also tried swapping relays which did nothing either. Any ideas appreciated.

[marcoleo]

start to test if the actuator circuit is fine: get a wire WITH A FUSE from 12V, contact the wire green_to_circuit and tan_to_circuit, BE CAREFULL one at time and for short time.
Test the signals from door: wiith a tester check if you receive 12V from tan_from_door and green_from_door (between wire to ground) when U actuating the doors switch, also here one at time.
If both test are fine U messed up with connection to relays.

[90XJ_Seth]

Well, it looks like a few things happened when I tried the mod, thanks for all your help. I apologize for hijacking this thread a little bit.

1 - The switch on the driver side unlock and passenger side unlock somehow shorted out from the attempted mod. I was able to turn the drivers side switch set 180 degrees to get it to function until I am able to find one at the JY.

2 - The passenger side switch which shorted I was able to switch with the window switch on the passenger side to get it running until I get the new switches.

3 - The rear passenger door was probably the overall culprit for shorting everything as both wire contacts were exposed and grounding through each other.

That said, this mod is amazing and works well when your wiring system isn't shot!

[andysmith89XJ]

Does anyone have the write up for this that Greg is referring to? The link he provided isn’t working. I’d really like to try this on my 89 Cherokee. The windows are sluggish and have all been lubricated and checked out.

[andysmith89XJ]

Hey do you have any ideas on using a similar mod to make the power windows work better? I see you are most recent user on this thread. I have a 1989 Jeep Cherokee Laredo and windows and door locks I would like to work better

[Rob Mayercik]

The Greg Smith writeup has been around a LONG time - try putting the link into the wayback machine (https://archive.org/web/), see if you can turn it up that way.

[wgregt]

Look at page one of this thread. Greg's write up is there.

[Phil]

Did anyone ever make a wiring diagram or schematic for this system? I don’t see any in the last five pages.