FJ62 rear passenger door power lock actuator retrofit

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Spook50

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For a few years now my driver's side rear door actuator wouldn't unlock at all. It'd always lock without issue, but unlocking was a no-go. A few months ago my passenger side actuator failed completely, so since I had the day off today, I figured I would finally tackle fixing those using a set of universal actuators that I had sitting in the garage for a while.

These are the actuators I had ordered from Amazon: Amazon.com - https://www.amazon.com/gp/product/B00N57OC68/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

This was relatively simple brain-wise, but pretty time consuming due to frequent test fits and tweaks required to get it just right. Fortunately I was able to figure out one door and easily duplicate it in about a tenth the time for the other door.

First, the latch & power lock assembly removed from my rear driver's side door. The dark gray paint-looking stuff is Slip Plate I had sprayed it with years ago. Stuff works pretty damn good in applications like this.
Lock Assy 01.jpg


First things first was to figure out how exactly I would mount the new actuator. I briefly considered attempting to use the bracketry that came in the kit, but almost immediately 86'd that idea. Instead, I decided to use some scrap 16 gauge stainless sheet that I had been hanging onto for more than ten years (yay I finally found a use for it). I made a quick and dirty template out of cardboard and after a few adjustments traced, punched, drilled and cut my first bracket from the sheet. Fit was perfect.
Lock Assy 02.jpg


Quick test fit of the actuator to make sure the mounting holes and its direction of travel were aligned right and it was good to go.
Lock Assy 03.jpg


After securing terminals to the wires and installing them into the connector (I verified which leads were correct as far as lock/unlock function beforehand), I was on to finding the right bends to put in the rod that came with the kit. The kit comes with four actuators and four hardware kits. This part and dialing in the dimensions for the brackets were the most time consuming, due to constant test fits, several installs in the door to make sure everything fit, marking, bending, cutting, getting more beer, etc. I eventually got it just right, allowing the actuator rod to easily clear the door latch rod and remain securely installed in the assembly. Though these rods are smaller around than the rod used by the factory actuator, I was able to bend it just right so that it will NOT come undone from the pivot unless purposefully removed by hand. Notice that the plastic bushing is swapped to the other side of the pivot for this conversion.
Lock Assy 04.jpg


Yeah, this was an aggravatingly long process for such a simple part.
Lock Assy 05.jpg
 
The completed lock & actuator assembly for my driver's side rear door, ready for final installation.
Lock Assy 06.jpg


A couple shots of the rod clearance in the lock & unlock positions.
Lock Assy 07.jpg


Lock Assy 08.jpg


Had to shove my phone into the door for this one. This is looking down from above. You'll notice that to get the alignment just right I used 0.25" nylon spacers to mount the actuator to the bracket, and a combination of a 0.25" nylon spacer and nylon washer for a total spacing of 0.30" on the bolt that secures the bracket to the door. I had some extra JIS hardware from a while back thanks to @ToyotaMatt that I was able to use since I needed a longer bolt than what originally held the factory actuator to the door.
Lock Assy 09.jpg



I now have working power locks for all four doors again, and it feels great to finally have yet another project scratched off the list. The new actuators have fast and firm motion just like the OEM actuators do when working properly, BUT due to the nature of their design, manually actuating the locks has that kind of soft "buffered" feeling that early 2000s GM trucks and SUVs have when you'd lock or unlock a door. Personally I'm not a fan, but since OEM actuators are long NLA, it's a minor quibble that I'll eventually get used to. Overall, definitely worth it.
 
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Pretty nice solution! Kudos for sticking through it, and nice detailed writeup. Do the original actuators move if you apply direct 12v to them? Wondering if they could be dismantled and refurbished. Mine are sometimes intermittent, haven't been problematic enough to devote any time to yet.
 
Pretty nice solution! Kudos for sticking through it, and nice detailed writeup. Do the original actuators move if you apply direct 12v to them? Wondering if they could be dismantled and refurbished. Mine are sometimes intermittent, haven't been problematic enough to devote any time to yet.
When they first failed I tried them with direct voltage and they seemed to perform just fine. I think they ultimately just got old and worn enough that they got too weak to move the linkage with the limited current coming from old wiring. Unfortunately there's no non destructive way to dismantle them and attempt a refurbishment. The plus side of these universal actuators is that if/when one fails I can easily swap it out with a new one. I may go ahead and get a second set and get them squared away with terminals and connectors so I've got spares lined up and ready to go. I have no idea how long these will last under normal conditions so that's pretty much just something I'll have an idea of once one reaches a failure point.
 
Wanna sell your template and rod dimensions? Time is money...just saying. Have you looked at the fronts yet? I think mine still work a little, but eventually would like to replace all and have a FOB.
 
I installed a set of cheapie eBay door lock actuators in my '01 F350 ($21 for 4 actuators and all the electronics) whose integral lock actuators are a real pain to remove. One has failed in 10 years, and was easily replaced. I'm a fan of this approach.

I didn't even remove the broken hard-to-get-to Ford actuators - the cheapie one overpowered what was there and worked great as-is. Redneck, for sure, but all hidden behind a door panel and invisible to my passengers.
 
I will need to dive into this.
How did you get the mechanism out of the door?

The bracket where the Inside Door handle attaches to has a broken tab, I will need to weld that.
I currently cannot verify if the OEM actuators are working or not.

What I can tell you is that someone previously attempted to install an aftermarket remote entry system that is long not in use.

That gives me 5 actuators that are fairly new that I can retrofit.
 
I will need to dive into this.
How did you get the mechanism out of the door?

The bracket where the Inside Door handle attaches to has a broken tab, I will need to weld that.
I currently cannot verify if the OEM actuators are working or not.

What I can tell you is that someone previously attempted to install an aftermarket remote entry system that is long not in use.

That gives me 5 actuators that are fairly new that I can retrofit.
The latch and factory lock solenoid are bolted together as a single assembly inside the door. It's deceptively simple to remove; the only caveat being that you have to be very careful when disconnecting the rods so that you don't break the old plastic clips. I have yet to find generic clips that match the size Toyota used. There are identical shaped ones at most parts stores, but they're larger overall, mainly for Ford & GM applications.

All you have to do is remove the door card, disconnect the rods from the latch/solenoid assembly, and then you can remove the three #3 screws that secure the assembly to the door sheet metal and worm it out from inside the door.
 
The latch and factory lock solenoid are bolted together as a single assembly inside the door. It's deceptively simple to remove; the only caveat being that you have to be very careful when disconnecting the rods so that you don't break the old plastic clips. I have yet to find generic clips that match the size Toyota used. There are identical shaped ones at most parts stores, but they're larger overall, mainly for Ford & GM applications.

All you have to do is remove the door card, disconnect the rods from the latch/solenoid assembly, and then you can remove the three #3 screws that secure the assembly to the door sheet metal and worm it out from inside the door.
Thank you a ton, sounds like I won't need to remove the window channels. This'll be the weekend's project
 
For a few years now my driver's side rear door actuator wouldn't unlock at all. It'd always lock without issue, but unlocking was a no-go. A few months ago my passenger side actuator failed completely, so since I had the day off today, I figured I would finally tackle fixing those using a set of universal actuators that I had sitting in the garage for a while.

These are the actuators I had ordered from Amazon: Amazon.com - https://www.amazon.com/gp/product/B00N57OC68/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

This was relatively simple brain-wise, but pretty time consuming due to frequent test fits and tweaks required to get it just right. Fortunately I was able to figure out one door and easily duplicate it in about a tenth the time for the other door.

First, the latch & power lock assembly removed from my rear driver's side door. The dark gray paint-looking stuff is Slip Plate I had sprayed it with years ago. Stuff works pretty damn good in applications like this.
View attachment 3670202

First things first was to figure out how exactly I would mount the new actuator. I briefly considered attempting to use the bracketry that came in the kit, but almost immediately 86'd that idea. Instead, I decided to use some scrap 16 gauge stainless sheet that I had been hanging onto for more than ten years (yay I finally found a use for it). I made a quick and dirty template out of cardboard and after a few adjustments traced, punched, drilled and cut my first bracket from the sheet. Fit was perfect.
View attachment 3670203

Quick test fit of the actuator to make sure the mounting holes and its direction of travel were aligned right and it was good to go.
View attachment 3670204

After securing terminals to the wires and installing them into the connector (I verified which leads were correct as far as lock/unlock function beforehand), I was on to finding the right bends to put in the rod that came with the kit. The kit comes with four actuators and four hardware kits. This part and dialing in the dimensions for the brackets were the most time consuming, due to constant test fits, several installs in the door to make sure everything fit, marking, bending, cutting, getting more beer, etc. I eventually got it just right, allowing the actuator rod to easily clear the door latch rod and remain securely installed in the assembly. Though these rods are smaller around than the rod used by the factory actuator, I was able to bend it just right so that it will NOT come undone from the pivot unless purposefully removed by hand. Notice that the plastic bushing is swapped to the other side of the pivot for this conversion.
View attachment 3670205

Yeah, this was an aggravatingly long process for such a simple part.
View attachment 3670206

Hey. Sorry to resurface this, but how come your connecting rod looks like a country back road and the OEM on is basically straight?
 
Hey. Sorry to resurface this, but how come your connecting rod looks like a country back road and the OEM on is basically straight?
The wording there was appropriately funny

I had to put a bunch of bends in it because of where exactly the new actuator end is, the style of connecting rod that they come with, and primarily having to leave clearance for the pull rod that reaches forward to the door handle.

Almost six months later and still working flawlessly.
 
The wording there was appropriately funny

I had to put a bunch of bends in it because of where exactly the new actuator end is, the style of connecting rod that they come with, and primarily having to leave clearance for the pull rod that reaches forward to the door handle.

Almost six months later and still working flawlessly.

Nice. I've bookmarked this for the future. Right now they all work, except the rear passenger won't lock. So, I feel like we all need to think about a long-term solution.

I noticed yours only have 2 wires, but some kits have 5 wires. I'm no electrical genius, so why 3 extra wires??
 
Nice. I've bookmarked this for the future. Right now they all work, except the rear passenger won't lock. So, I feel like we all need to think about a long-term solution.

I noticed yours only have 2 wires, but some kits have 5 wires. I'm no electrical genius, so why 3 extra wires??
That I'm not sure, TBH. The OEM solenoids are only a two wire and operate on reversing voltage. One direction pulls the rod one way; reverse the voltage and the rod will be pulled the other way. These replacements operate on the same electrical principle, with the only difference being that they're a high torque motor driving a geared shaft (I haven't pulled one apart but I'm assuming it's a rack & pinion type setup).
 
That I'm not sure, TBH. The OEM solenoids are only a two wire and operate on reversing voltage. One direction pulls the rod one way; reverse the voltage and the rod will be pulled the other way. These replacements operate on the same electrical principle, with the only difference being that they're a high torque motor driving a geared shaft (I haven't pulled one apart but I'm assuming it's a rack & pinion type setup).
Thanks!
 

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