Lock Actuator from my Honda CRV

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  • Thread starter kiki_danc
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I got this honda crv 2004 rear cargo lock actuator accidentally replaced when it was working.. although Honda said it might not be working. So I want to check if it is really working or not. Which of the 5 terminal can move the actuator by suppying with 12 volts DC supply?

I watched a lot of youtube videos, but they are mostly about replacing the actuator.. I want to test it isolated if the arm is still functioning or not.
 

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  • #2
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If you can get to the connectors on the one they installed, back probe or disconnect each connector to see which pins have 12 volts when being actuated.
 
  • #3
berkeman
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So I want to check if it is really working or not. Which of the 5 terminal can move the actuator by suppying with 12 volts DC supply?
You need the part of the wiring diagram for that vehicle that shows this component. You can buy them at auto parts stores or your local Honda dealer, or you may be able to find the schematic by searching online.
 
  • #4
berkeman
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rear cargo lock actuator accidentally replaced when it was working.. although Honda said it might not be working.
BTW, did you figure out the problem with your rear door lock? I'm having problems with my rear cargo door on my Jeep Grand Cherokee, and had assumed it was just the actuator/solenoid. But if you've found it can be due to something else, I'd be interested in hearing about it. Thanks.
 
  • #5
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BTW, did you figure out the problem with your rear door lock? I'm having problems with my rear cargo door on my Jeep Grand Cherokee, and had assumed it was just the actuator/solenoid. But if you've found it can be due to something else, I'd be interested in hearing about it. Thanks.
I remembered I had no problems with the rear cargo lock. But the honda service representative heard me wrong.. I told him to replace my backseat right side.. he thought it was cargo rear.. and replaced the cargo lock. He told me it's not working anyway. So I just wanna test if the lock actuator removed is really defective or not.

Many here are mechanical engineers. Maybe they have memorized the pin diagram of this lock actuator? Hope they can tell me which of the 2 powers it because I don't have any access to any wiring diagram.
 
  • #7
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I did a Google Images search on 2004 Honda CRV Wiring Diagram, and got lots of hits. Have a look through these to see if you see the part of the diagram for the rear lock actuator/solenoid assembly:

https://www.google.com/search?q=200...g-_zdAhXdGTQIHXupCh0Q_AUIDygC&biw=935&bih=619
I'm searching now. Do you think the gun type actuator lock or the one in honda is more reliable? What's the usual lifetime of this? I'm concerned about my lock failing without me knowing because here in our place.. robbers forcibly enter cars during traffic stealing bags or even babies.

See:
 
  • #8
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I called up the honda parts and service department. They didn't know the pin assignments.. so I hooked up a 12 volts adapter and tried the terminals.. well.. the left socket with the two terminal is the one connected to the small motor. And it works.. so the Honda service fooled me by saying it's defective when it's not. I spent $60 for it.. so in order not to get into bad mood. I'll take the opportunity for me to be familiar how the whole system works.

I can't find the exact internal diagram for it but here's something similar:


What i'd like to know is.. if the motor keeps running.. what happens exactly to the small white gear inside? And when you lock and unlock the door... does the door circuitry only gives a momentary power to that actuator and it can forward or reverse the polarity? And what is the name of this control unit?
 

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