Electronic door locks don't work... - my.IS - Lexus IS Forum
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Old 07-25-2010, 10:13 PM   #1 (permalink)
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Electronic door locks don't work...

Soo, my remote key no longer unlocks or locks the doors nor does the lock switch inside the car door. I now have to manually lock and unlock all doors. Tested ALL fuses and they seem to be fine....anyone have any ideas??
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Old 07-26-2010, 01:56 PM   #2 (permalink)
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Ok, so the locks work when the car is on, not when it's off. Guessing it's a "constant power" issue. I checked the fuses again, all are fine. Anyone know if and where the relay location is for accessories??
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Old 07-27-2010, 12:34 AM   #3 (permalink)
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there; are three fuse boxes.. u checked every single one?
theres one in each kick panel and then one under the hood.
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Old 07-27-2010, 12:39 AM   #4 (permalink)
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check fuse labeled MPX-B
passenger side kick panel. that looks like main power source for door locks looking at my schematics i have in front of me.
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Old 07-27-2010, 12:42 AM   #5 (permalink)
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i think your car battery is running low. i've seen some cars do that before. Try leaving your car running for a while to wehre the battery is fully charged, or may be its on its last straw
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Old 08-07-2010, 11:25 PM   #6 (permalink)
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i have a similar problem. when i click the unlock or lock button, all doors work except for the driver side front door. However it does not beep. It only beeps after i have manually locked the driver side front door and then pressed the lock button. any suggestions?
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Old 08-07-2010, 11:36 PM   #7 (permalink)
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Quote:
Originally Posted by Jcooper94 View Post
i have a similar problem. when i click the unlock or lock button, all doors work except for the driver side front door. However it does not beep. It only beeps after i have manually locked the driver side front door and then pressed the lock button. any suggestions?
Your problem is the door actuator on the driver side front door. Theres a thread that shows you how to replace it. Or you can just replace the motor for like 15 dollars total. Theres a thread on that too. Just search.
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Old 08-10-2010, 12:01 PM   #8 (permalink)
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I had the same issue and I fixed it. I went to carson toyota and purchased a new actuator.
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Old 08-10-2010, 02:09 PM   #9 (permalink)
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Originally Posted by 04blackis300 View Post
I had the same issue and I fixed it. I went to carson toyota and purchased a new actuator.
I dont think its the door actuator for the op. His seems to not work at all. If i remember correctly....this is from working with my dad. I think its the driver side door lock switch. Like if that switch doesnt work then no switch in the car work. or maybe thats for windows. But i highly doubt that all of his actuators broke at the same time.
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Old 11-01-2011, 09:38 AM   #10 (permalink)
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I do not know if this thread is still active, however I have a similar problem with my 2007 Lexus IS 350 ( I just bought it used from a local dealership in Springfield Virginia in June of 2011 and now out of 30 day warranty ). My Door locks work fine except for the passenger front door will not lock or un-lock with the switch on the door itself. The driver side switch will work and the remote key will also work the locks fine, however the passenger door switch itself will not. I just had window tint put on and thought that the installer screwed something up and when I went back in to have them look at it, this is what we found when he pulled the door panel off along with the switch assembly on the door handle. The installer (who was very nice to do this for me) disconnected the locking switch (along with the assembly) and there are two screws holding the circuit board underneath the switch itself. This circuit board pulls away from the switch and has a wire connector on the bottom that goes to the wire harness to the door lock actuator. Now looking at the circuit board when it is installed in the assemble it looks fine, however turning over the circuit board there was a crack all along the other side the length of the silicone board. We could also see that someone attempted to solder two sections of the circuit board (I guess to make the electrical connection for the switch when it is used to lock or unlock the door. At this time I do not know what this part is called or even if you can just order this part and replace the circuit board with the wire connector on it or if I will have to buy an all new switch with circuit board to replace this unit. If anyone can supply a diagram or information in what this would be called or part number etc etc I would greatly appreciate it. I am writing this so that some who might just have one door lock on the car not working (not the driver side as I think that is controlled in a different way from what I have been reading.) might check this small circuit board for cracks or damage. I am going to see if I can use a circuit board from one of the rear switches just to see if this works to let me know if it is the circuit board. I will post once I can find the time to do this.
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Old 11-01-2011, 11:09 AM   #11 (permalink)
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Wrong forum, and a trip to the dealership will yield the part number and price of parts. Good luck with your repair.
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Old 11-01-2011, 11:49 AM   #12 (permalink)
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Sorry and thanks I guess it would be the DIY forum? I posted there also, just getting use posting questions and again thanks.
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Old 11-01-2011, 11:51 AM   #13 (permalink)
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Well, this is the forum for the first generation (01 - 05).
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