Greg Smith Power door locks writeup PRE-1991

[ChipsXJ]

I found that I could protect the power wire that runs out to the battery lug by using a vacuum connector that I found lying on the ground at the local u-pull-it. here are a couple of pics:

Before:


just cut off the piece I needed to fit the hole I was drilling.


I drilled a hole through just below the antenna boot behind the right kick panel.


and another hole near the hood prop.


This brings the power wire out very close the battery lug and keeps things tidy.

Just my .02 cents worth.

[UN-limited'89]

Hi there, Greg:
Took the jeep to a friends stero shop, to work on this issue over the weekend. follow the diagram, but I think I missed something in the process.
1) didn't had the multimer on hand so I didn't check the voltage.
2) hook the power to the relays from the current power source.

Would I need to find another power source and re-check the incoming voltage?

thanks.
but on the postive side, the process is very simple, and quick.

[FRAM]

I wanted to post this earlier. Great write up Greg. I installed this upgrade on my 90 XJ Limited with a rear drivers door that was sticking in cold weather. The install was a snap but in all fairness I was in the final stages of my alarm/remote start install so I was no longer green as I was about 7 relays in by that point.

Wow what a difference. I just tapped into the red near the lock relays which provides enough power for my XJ. The locks slam shut now. When I showed my installer friend he was all worried I going to wear out the locks sooner now. :lol:

So thank you very much for your time and energy.

Another ill-fated door lock system has been revised thanks to your great write up.

[burntkat]

any chance anyone haas a power window fix along similar lines?

[Greg Smith]

Originally Posted by burntkat

any chance anyone haas a power window fix along similar lines?

See my post on this subject on page 3 post number 45 in this thread. Good Luck. Greg

[RTicUL8]

Originally Posted by Greg Smith

Here is a link to the current writeup w. pics.

http://southeasternxj.com/tech/tech_locks.htm

Greg

Greg,

As of 9/26/06, this link is dead.
Do you know where else it's posted?
Link?

Thanks,

Craig

[Jay Welch]

Don't know what happened to the link but if you need the power lock info you can email me at Jay_Welch@juno.com. I can send you what I have. It consists of a document I wrote using Gregg's early drawing. I also have a later document by Gregg. You should have no trouble doing the mod using this info.

Jay in MA

[Kevin3151]

I did this today on my 88, works like a charm. After my brain figured out what was going on, it was a breeze.

Thanks!

KH

[Greg Smith]

Originally Posted by Kevin3151

I did this today on my 88, works like a charm. After my brain figured out what was going on, it was a breeze.

Thanks!

KH

Greg

[Bryan C.]

Great write up Greg. I fixed a 88 XJ at the dealership today with this repair. Just for reference, I used 2 mopar ASD relays, part# 04727370AA and they worked great.

Ever think about submitting this for a FAQ subject?

Thanks again Greg!

[kemper]

Hello all! - In regard to Greg's writeup: I have an '86 that I have been trying to fix the locks on to no avail...first, inside the psgr door on this year jeep there is a splice for the tan and light green wires to the psgr door, the psgr rear door and to the rest of the doors/rear hatch. This is different than Greg's post of there being a master splice on the driver's side under the carpet..not the case here...hence there is no general wire harness connector once the wire bundel leaves the psgr door and enters the kick panel, but rather two sets of light green and tan wires, one set going to the left side of the car (and eventually rear hatch) and one set to the psgr side rear door. Anyway, I spliced the wires together to simulate Greg's general wire harness connector and undid the extra two splices on the inside of the psgr door. So, after I did this, I hooked up the circuit just as described by the post with the Part's Express parts, was able to operate the switch on the psgr door completely (lock/unlock both worked) again and the lock part worked on the driver's switch. So, I figured since the whole system was working much better, but not completely, I went ahead and redid some of my earlier crude splices (with good ones) and tried the system again. Well, the unlock works on the psgr door, but when I press the lock part of that switch I just here a clicking sound coming from the relays. Does anyone know what might be happening here? Any help would be much appreciated. Thanks

[Greg Smith]

Originally Posted by Bryan C.

Great write up Greg. I fixed a 88 XJ at the dealership today with this repair. Just for reference, I used 2 mopar ASD relays, part# 04727370AA and they worked great.

Ever think about submitting this for a FAQ subject?

Thanks again Greg!

Bryan, Glad it worked for you. I did have a nice writeup on southeasternxj.com but that site appears to have been taken off line. Don't know if it is worth doing a writeup now for the dwindling numbers of pre 91s w. this wiring problem on the door locks. This thread may be enough.

Greg

[Greg Smith]

Originally Posted by kemper

Hello all! - In regard to Greg's writeup: I have an '86 that I have been trying to fix the locks on to no avail...first, inside the psgr door on this year jeep there is a splice for the tan and light green wires to the psgr door, the psgr rear door and to the rest of the doors/rear hatch. This is different than Greg's post of there being a master splice on the driver's side under the carpet..not the case here...hence there is no general wire harness connector once the wire bundel leaves the psgr door and enters the kick panel, but rather two sets of light green and tan wires, one set going to the left side of the car (and eventually rear hatch) and one set to the psgr side rear door. Anyway, I spliced the wires together to simulate Greg's general wire harness connector and undid the extra two splices on the inside of the psgr door. So, after I did this, I hooked up the circuit just as described by the post with the Part's Express parts, was able to operate the switch on the psgr door completely (lock/unlock both worked) again and the lock part worked on the driver's switch. So, I figured since the whole system was working much better, but not completely, I went ahead and redid some of my earlier crude splices (with good ones) and tried the system again. Well, the unlock works on the psgr door, but when I press the lock part of that switch I just here a clicking sound coming from the relays. Does anyone know what might be happening here? Any help would be much appreciated. Thanks

Kemper, I will try to help but need some more info. Is it a 2 or 4 door vehicle and which passenger side door were you refering to if it was a 4 door? I only have the wiring diagram for 89s from my 89 fsm but it may be the same. Perhaps someone w. a chiltons or other book can let us know it the wire diagrams listed there for the door locks covers 86 to 89 as the same? Greg

[kemper]

Originally Posted by Greg Smith

Kemper, I will try to help but need some more info. Is it a 2 or 4 door vehicle and which passenger side door were you refering to if it was a 4 door? I only have the wiring diagram for 89s from my 89 fsm but it may be the same. Perhaps someone w. a chiltons or other book can let us know it the wire diagrams listed there for the door locks covers 86 to 89 as the same? Greg

Hey, Greg...the jeep is an '86 4 door cherokee and I was referring to the right front passenger door. I am really at a loss right now because I have meticulously followed your instructions and cannot understand why the relays are clicking when the locking is switched, but it is certainly possible that something was misunderstood... who knows. If you think it will help I can take some pictures and post them. Thanks

[Greg Smith]

Originally Posted by kemper

Hello all! - In regard to Greg's writeup: I have an '86 that I have been trying to fix the locks on to no avail...first, inside the psgr door on this year jeep there is a splice for the tan and light green wires to the psgr door, the psgr rear door and to the rest of the doors/rear hatch. This is different than Greg's post of there being a master splice on the driver's side under the carpet..not the case here...hence there is no general wire harness connector once the wire bundel leaves the psgr door and enters the kick panel, but rather two sets of light green and tan wires, one set going to the left side of the car (and eventually rear hatch) and one set to the psgr side rear door. Anyway, I spliced the wires together to simulate Greg's general wire harness connector and undid the extra two splices on the inside of the psgr door. So, after I did this, I hooked up the circuit just as described by the post with the Part's Express parts, was able to operate the switch on the psgr door completely (lock/unlock both worked) again and the lock part worked on the driver's switch. So, I figured since the whole system was working much better, but not completely, I went ahead and redid some of my earlier crude splices (with good ones) and tried the system again. Well, the unlock works on the psgr door, but when I press the lock part of that switch I just here a clicking sound coming from the relays. Does anyone know what might be happening here? Any help would be much appreciated. Thanks

Kemper, when people have had problems doing this fix it usually is due to hooking wires to the wrong connector blades on the relays or due to a bad wire to connector connection or bad ground. Typically it is a reversal of the 86 and 87 position connections on the relays. First confirm you have the part of the tan and light green wires comming from the passenger door lock switch connected to the 86 position on the relays and the remaining pieces of the tan light green wires that go on to the door locks are attached to the 87 postion. 87a and 85 are connected to ground and 30 is the new incomming power supply.

Note in my fix the connection to the tan and light green wires occurrs after the internal splice in the frnt passenger door because it occurs in the kick panel just outside the door. So my fix does not affect the door lock function in that door since the lock in that door usually gets plenty of pwr at the begining of the circuit and never has been part of the typical problem.

I wish we could come up with a wire diagram of the 1986 jeep xj door locks for comparison so I could provide better help. Anyone out there know if it is the same as the 1989?

Let me know how it goes. Greg