Greg Smith Power door locks writeup PRE-1991

[kemper]

Originally Posted by Greg Smith

Here is how I did the wiring: I used the two 12v relays. They have 5 blades: 86 is trigger pwr from the passenger dr switch; 85 is ground; 87 is the new pwr source; 30 is the path to the lock and 87a is to ground (in this application). I cut the Lgreen and tan wire about 5 inches forward (toward the front of the Jeep) of the wire harness connector that connects the wires to the wires coming out of the passenger frnt dr. In this example I attached the tan unlock wire coming from the passenger frnt door to 86 and 85 to ground; 30 is attached to the tan wire going to the door locks; and 87a is to ground. I used the new 10 gauge pwr line I had previously run to the battery/starter relay post with a 30 amp inline fuse. You can take off pwr from a splice on the red pwr going into the passenger door instead. (The same approach is used for the lgreen wire using the other new relay for for the lock circuit.) The key to making this work was 87a to ground. When the lgreen or tan wire are not in pwr mode they provide ground path to ground through the driver’s side switch. With my new relays I substituted a new body ground instead. As a result I increased voltage and created new better grounds. The locks now all slam open and closed even in very cold weather. Hope this helps. At least 30 people I have heard from have done this mod with great success. Greg

Greg, from your initial writeup you have the new power going to 87, not 30. And you also have 30 going to wires going to the rest of the door locks, not 87. This is what I followed along with the rest of the above quotation...is your most recent post just reversed on accident? Thanks

[Saudade]

Finally, my '88 is succumbing to this. Howver, since I have the keyless entry system, I already have door lock/unlock relays under the pass kick panel. Are the relays described in this fix, in addition to, or instead of or do I just need run a new source wire?

[Greg Smith]

Originally Posted by Saudade

Finally, my '88 is succumbing to this. Howver, since I have the keyless entry system, I already have door lock/unlock relays under the pass kick panel. Are the relays described in this fix, in addition to, or instead of or do I just need run a new source wire?

Sorry I misread my old instructions and they are correct. 87 is new pwr supply and 30 is path to lock. Greg

[purplexj]

In case anyone already has keyless entry as I do. Yes you can leave the relay and or remove it. Mine had very little on the open side only so I just eliminated that relay and used the fix for the open only. I'ts hard to undrstand untill you get in there and start cutting. Then , perfect. Mine is a 92, but then I rememberd I got the harness from an 89. Thanks Greg.

[Saudade]

I left them as I use my keyless entry. My issue was some corrosion on the contacts in the pass side switch. Once I cleaned them, all was well.

[Greg Smith]

Originally Posted by purplexj

In case anyone already has keyless entry as I do. Yes you can leave the relay and or remove it. Mine had very little on the open side only so I just eliminated that relay and used the fix for the open only. I'ts hard to undrstand untill you get in there and start cutting. Then , perfect. Mine is a 92, but then I rememberd I got the harness from an 89. Thanks Greg.

Greg

[88xjchief]

I have 88 and my radio didnt have a constant 12volt power supply. When I ran power to it all my doors locked. I have the keyless entry. My door lock switches havent worked since I've owned it. Anyone know why this would happen?

[twisted_ed]

I wish to do this mod and was wondering if there is an updated and working link to the writeup, both links ion the thread lead no where and I was looking for a wiring diagram to suppliment the initial writeup.

Also Greg, any idea is this will affect my Car alarm that also functions as remote lock unlock?

[kevin s]

This has to be the best, most useful post ever. In looking through the posts, I myself posted almost 3 years ago thanking Greg for the super helpful mod. Now, here I am with a "new" 1990 in need of the same upgrade. Long live Greg Smith

[cherokee4fun]

GLAD THIS HAS COME UP AGAIN!!!
So, I am going to do my 90 with electric door locks with keyless entry.

Should I leave the relays that are already there for the keyless entry?
Can I just tap into the red wire or do I need to run a new power source?
Can I just run a new power source to the relays that are already there?

Going to check out the write up on the windows!!!

Thanks,
Bob

[Greg Smith]

GLAD THIS HAS COME UP AGAIN!!!
So, I am going to do my 90 with electric door locks with keyless entry.

Should I leave the relays that are already there for the keyless entry?
Can I just tap into the red wire or do I need to run a new power source?
Can I just run a new power source to the relays that are already there?

Going to check out the write up on the windows!!!

Thanks,
Bob
Reply With Quote


Bob The answers are: Yes leave relays for keyless; You can tap into the red wire but running a 10 gauge wire w. inline 30 amp fuse to the battery is much better; no running the new power source to the keyless relays will do nothing to help. Good Luck. Greg

[Greg Smith]

Originally Posted by twisted_ed

I wish to do this mod and was wondering if there is an updated and working link to the writeup, both links ion the thread lead no where and I was looking for a wiring diagram to suppliment the initial writeup.

Also Greg, any idea is this will affect my Car alarm that also functions as remote lock unlock?

I have an after market remote car alarm w. remote lock and unlock and it does not affect mine so it probably will not affect yours. Good Luck Greg

[Greg Smith]

Originally Posted by kevin s

This has to be the best, most useful post ever. In looking through the posts, I myself posted almost 3 years ago thanking Greg for the super helpful mod. Now, here I am with a "new" 1990 in need of the same upgrade. Long live Greg Smith

Greg

[purplexj]

Same here, alarm pwr locks not affected.

[marcoleo]

Thanks Greg, fantastic solution, it work perfect now!!!
Next step take more power to the windows.....
For who need I've drawn a schematic:
http://www.jeeptuning-foto.com/album...two-relays.pdf