Power Door Lock Conversion - Lock problem

Converting manual door lock / windows to power. Installed window / lock wire harness only from donor Tacoma. Power windows work great. Door locks will not activate. Power seems to be getting to lock but will not activate. Tested the door lock motor and spins good. Can't seem to get solenoid to activate.
Any suggestions on the lock problem??

 

Are you sure those lock actuators are from a Tacoma? I've pulled tons of lock actuators from these trucks across the 1st Generation and those more closely resemble 2nd Gen 4Runner or Toyota Pickup lock actuators.

 

Thanks. I checked my paperwork and they came from 1994/95 4runner. Like I said the windows work great. If I activate the solenoid manually, the gray module clicks. If I activate the door switch, the module again will click. But will not activate electronically.

 

How is everything hooked up, do you have a schematic?

Did your truck come with the plugs in the kick panels?

Early 4Runner actuators are very different from Tacoma actuators, and if you attempt to use them with the Tacoma factory wiring it will not work.

 

I got the wire harness from a donor truck. The harness was damaged but I salvaged the section that went to the doors. Tapped that into my existing wire harness. Got door wire harness from donor vehicle. Got door locks from a donor vehicle as stated. Got new power window regulators and they work great. Purchased the Door control #85980-35030. Have power to door locks but they will not activate as stated control will click if I activate door lock manually. Donor door locks don't seem to have apart number on them. Will do research on the door locks to see the difference.
Any other suggestion's? Thanks

 

So you’re using 4Runner door lock actuators with a Tacoma door harness?

That’s why it doesn’t work.

 

Thanks. I found my paperwork the locks are from 1994/95 Toyota 4 runner. So I will seek to find Tacoma locks. But what makes them not compatible with Tacoma??

 

Did your original wiring harness have a plug for the power windows or locks?

 

They're completely different, even though it has the same physical plug: the actual actuator motor itself is unique to the 4Runner.

 

Thanks. I am searching for the correct locks for Tacoma. Let you know what happens when I get them. Thanks again.

 

I am going to doubt that the lock actuator is different or specific to the model vehicle. It's just a 12v motor in the end. Power one way to lock, power the opposite to unlock. The only place they might be different would be in the controller. I've been a 12v automotive electrician for over 30 years. It's only been in the last couple where actuators have become more sophisticated and work with different voltage levels.

If I were to make an educated guess, without being there to check your wiring in person, I might think the actuator is "weak". A weak actuator could click but not have enough strength to drive the lock mechanism.

This usually happens with age, and these being 25 years old I would say is a more likely cause.

 

It is. I make power door retrofit systems and the 4Runner actuator is completely unique electrically, and physically. The Tacoma actuator is only one piece, if you look at the 4Runner actuator it’s in two pieces joined by an intermediate piece.

The internals are wired differently too. Just because the plug is the same doesn’t mean it’ll work the same. I’ve tried to use 4Runner actuators with my Tacoma wiring before and it doesn’t work, experiencing the same symptoms as OP.

After looking at a schematic they are completely different.

 

Thanks for the feedback. I did a voltage check at the end of the plug where the locks plug into the wire harness. The voltage reading I got was around 11 volts. 10.7 something. As I stated before, I checked the lock actuator motor and it did work. I could not figure out how to check the solenoid to verify if it worked. But activating it manually the door control clicked every time.

 

It would be nice to help you, and it is possible to make things work if you're willing to make some modifications, but there is a lot of information missing from this post, too much to direct you to the right solution. Bart seems to have all the information you need to modify it, maybe he'd be willing to share. It sounds like your locking system may have some kind of safety lockout, which you should be able to bypass.
When explaining what you're working with it is helpful to know exactly what parts came from where (specific model and year vehicle). I stand by my opinion that this is all simple 12v wiring. Maybe Bart can provide the schematics he's looking at to help you figure this out.

 

Thanks. I am working on gathering the information and in the meantime I am trying to locate the Tacoma locks.
So far, I started with a wire harness from a donor truck #821310-04800 wire cowl, separated wires that went to windows/doors.
Power locks came from 94-95 4 runner (no part # but see picture).
Door wire harness I am not sure yet where is came from. But again the windows work fine. Just locks not activating. Tested the lock motor and they work. Cannot get solenoids to activate, but activate solenoid manually the Door Control Relay (#85980-36030) will click. If I activate the door switch, again the Door Control relay will click. But locks will not show motion.
Switches for door are new.

 

BIG Thanks to BartMaster1234 and tcervinsky. I received the Tacoma Locks today. These do work. There is a difference in the locks as you stated. Thanks so much for your assistance....