matts6887

Well; i dont know that i will need to do that per say as it seems like that should fix the problem at hand. Since i am probably gonna have this buddy of mine try and do the repair(s); i dont want to have to go back to his place a second or third time as its not easy to coordinate times because he has kids etc and works and I am busy as well.

hypervish

Got a strange issue. I replaced the drivers side door lock actuator motor and it works fine. However, the car won't beep anymore.

If I press the unlock button once, there is no beep but the drivers door does unlock.

If I press the unlock button twice, there is a beep and all doors unlock.

If I press the lock button once, there is a beep and all doors lock.

I double checked the two connectors going to the assembly and they are clicked in properly.

Any ideas? I also pulled the negative cable for a few minutes thinking it may be a gremlin, but no change.

salimshah

Try disconnecting for about 20 mins.

If things dont fall in place ... I suspect the security system is out of sync. I have forgotten the sequence ..
involves using master key in ignition.

How is the red security light?

Salim

hypervish

I'll try disconnecting it again for longer sometime next week.

I also tried to reset the security system. The red light goes out with key in ignition, and is functioning the same as usual.

Thanks Salim!

carguy07

Did you do the OE type motor or a piggyback?

hypervish

OE type motor. It's the 3rd one that I did, so I'm certain I did it correctly.

salimshah

Actuator has couple of independent function. The motor part just does the mechanical. The other functions are recognizing which state the locks are (secured/unsecured), door ajar, how the next energize action should be interpreted and the most trickiest is if a mechanical override happens then send the signal to the ecu. Folks who have tried slim-jim equivalent have fond that the doors quickly cycle and lock themselves up.

So ,,, you can replace the bad motor, but if there is something out-of-syn with the security system, you will have issues like hyper is having. Or there may be something wrong with the other portion (including a bad connection) with the actuator. Our vehicles are aging!

Salim

hypervish

I think there is a connection issue. There wasn't anything wrong before doing this actuator replacement. I will have to inspect the wires.

I have noticed that once this issue started, if I only unlock the drivers door and insert the key in the ignition, the car will automatically unlock all of the other doors.

So I'm fairly certain the computer isn't communicating completely with the drivers door.

salimshah

Also check the link to the key in the door. The electrical communication happens with the electronic board and the links that run around. You can use the lock key and see what happens when you operate it. Lock, unlock twice, unlock and hold etc.

Salim

hypervish

The link is connected to the key latch thing. I believe I did it correctly, as I only see one way to put it on.

However, it has never quite worked correctly. Locking the car via key always worked, however unlocking via the key, usually didn't work. The lock would begin to move but wouldn't ever fully unlock. But moving the key once or twice to the unlock position, usually got it all the way to unlock and then it would open.

Now after the door lock actuator motor replacement, using the key to lock still works perfectly. However, unlocking via the key, doesn't work at all.

I'll have to pull the entire actuator out again and take a look. I'm thinking it has something to do with the smaller connector, the one with only 2 pins. I unplugged and replugged both, but that didn't seem to do anything.

But of course, the radiator in my Sienna has started to leak. So I'll be working on that today, instead of the RX.

salimshah

I always though the 2 wire connector has to do with door ajar. Please confirm before spending time on that one ... if the dome light + display work correctly and the 2 pin connector is for door ajar then you will be wasting your time. I suspect the time tiny circuit board attached to the key cylinder and wiring could be your problem. just a hunch

Salim

hypervish

Yes, I will confirm that before doing so. I will hopefully get time to attack this on Tuesday or Thursday. Will keep everyone posted.

Thanks Salim!

hypervish

Just an update, I haven't had a chance to dig in to the door again and see what the issue is. The door is working fine though with the exception of no beep initially, and the cycling of the door locks whenever opening and closing the drivers door. So, I'm going to hold off on touching it for a few months and will attack it when the weather gets warmer. Will likely just get an entire door lock assembly from a junkyard or something and throw it in if I can't find anything wrong with mine. But we'll cross that bridge, when I get there.

tpfarm

A word of thanks to the op and others who contributed to this extremely valuable write up on replacing the motors in the door actuators. I just completed replacing all four door actuator motors for a total of $60.00. Dealer and independent garage quoted $2200.00 and $1800.00 respectively.
THANKS !

salimshah

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