Help my doors are not opening

[manuel_Ga20]

Hi guys, i´m having some issues with the opening and closing doors system i guees, i will explain all the details, well i bought a mvh-8250 pioneer, the 2 din to 1 din kit and the little things that goes one on the left side and the other in the right side, and i bought the wiring kit, first of all i unplugged the original stereo and plug the wiring kit to the original one, and then i follow all the steps that the mvh-8250 brought, after all that i installed everything back and it was everything set up back in place, when i was back at home i realized that the control that it comes with the keys wasn´t working at all and i thought that maybe it was the battery so i decided to buy a new one, i installed it and it wasn´t working either, i took my car to the toyota dealer and the try to see if it was the control and it wasn´t the control was fine, so they told me that when i have time i should leave the car there for a couple of days, so my question is does the new stereo has something to do with the opening and closing sysmtem or ECU? i´m really worried about it! i need some help with it! Sorry if my english is not good enough it has been a long time since i left america! Thank you very much for your time!

[big lo]

One your english is fine brotha, two did you try disconnecting the battery to reset the system if that's not the problem CT Scott will answer your question with no problem and will find the solution 2 your problem, suelte bro

[CTScott]

Chances are that you popped a fuse in the process of doing your audio work.

If I had to guess, I would say that it is the 15A DOME fuse in the under hood fuse panel.

If that one is not bad, check the following:

In the under hood fuse: 7.5A ECU-B
In the under dash fuse panel: 25A D/L. 10A ECU-IG, 7.5A ACC.

[manuel_Ga20]

Big lo thank you dude! i already tried disconnecting the battery but nothing, when i was at the toyota service department they did a test to see if the car was receiving the waves that comes from the control, so the center light in the interior blinked when they pressed the unlock o lock button, that it supposed to mean that the car was receiving the waves but the doors weren't locking or unlocking so they told me to bring the car in a week but i bet they don't even know what is it, so after asking to some friends they told me that it maybe is the ECU that is supposed to be located near by the back door in the pilot side! so i actually don't know what to believe, i found this diagram that i want to share with you and maybe it will helphttp://img857.imageshack.us/img857/4486/diagrame.jpg

CTScoot i actually think that i looked all the fuses that you mention, i checked all those fuses under the hood, also i checked all the fuses up where i rest my left foot, i think those are what you meant! am i right? Thank you very much for your help!

[CTScott]

That diagram is for the transponder key. If that wasn't working you wouldn't be able to start the car.

With the fuses, pull and look closely at the ones that I mentioned (two are under the hood, and the rest are by your left foot). It is not always obvious that they are popped, particularly with the low current ones.

[manuel_Ga20]

okey tomorrow at mornig i will check all of them and i will let you know! http://www.scribd.com/doc/8679750/2007-Toyota-Yaris-Repair-Manual-36-Door-Lock check this part of the manual this is what they showed me, page DL-64, with my key control the center light blinked twice, and with another key blinked once but longer. So they told me the receiver is fine!. Thank you for your help!

[CTScott]

okey tomorrow at mornig i will check all of them and i will let you know! http://www.scribd.com/doc/8679750/2007-Toyota-Yaris-Repair-Manual-36-Door-Lock check this part of the manual this is what they showed me, page DL-64, with my key control the center light blinked twice, and with another key blinked once but longer. So they told me the receiver is fine!. Thank you for your help!

OK - If the receiver is responding, and the dome light lights when you open the door, then the DOME fuse is fine.

Still check the others, since the door control receiver just passes data over LIN BUS to the Body ECU. The body ECU then does the actual work of locking and unlocking the doors. The other fuses relate to that function.

[big lo]

I think that tomorrow all will be in order, thanks to CT

[manuel_Ga20]

CTScott i checked all the fuses and it seems to be that alot of them are not working tomorrow i will change them, i even saw something really weird on the fuse number 26 that it says id/up/mir htr and its that the plastic is kind of weird as you can see on the picture!, i took it out and i put my tester were the fuse should be and it seems that this slot is like no working, i'm really worried about it, the only modification that i did to the car was the new Stereo so i don't get it, does the stereo has something to do with the ECU? here is the picture: [img=http://www.freeimagehosting.net/uploads/th.f79418b110.jpg] (http://www.freeimagehosting.net/image.php?f79418b110.jpg)

[CTScott]

CTScott i checked all the fuses and it seems to be that alot of them are not working tomorrow i will change them, i even saw something really weird on the fuse number 26 that it says id/up/mir htr and its that the plastic is kind of weird as you can see on the picture!, i took it out and i put my tester were the fuse should be and it seems that this slot is like no working, i'm really worried about it, the only modification that i did to the car was the new Stereo so i don't get it, does the stereo has something to do with the ECU? here is the picture: [img=http://www.freeimagehosting.net/uploads/th.f79418b110.jpg] (http://www.freeimagehosting.net/image.php?f79418b110.jpg)

Fuse 26 is a secondary feed on the rear window defogger circuit. If the 30A DEF fuse is popped then that slot will not have power. The 30A DEF fuse is one of the larger fuses near the relays, behind the pocket on the left side of the dash:

http://i372.photobucket.com/albums/oo163/ctscott329/Misc%20Yaris/FuseBox-sm.jpg

[manuel_Ga20]

http://i1206.photobucket.com/albums/bb459/manuel_ga20/ecu.jpg you mean the main body ecu? where can i get one of those big fuses? are they easy to find? thank you bro for the help

[CTScott]

http://i1206.photobucket.com/albums/bb459/manuel_ga20/ecu.jpg you mean the main body ecu? where can i get one of those big fuses? are they easy to find? thank you bro for the help

Correct. I am not sure about down your way, but up here, auto parts stores carry those larger fuses.

[manuel_Ga20]

These are the fuses that are not working: 1,2,3,4,5,6,7,16,17,18,20,21,26,30,31! I'm gong to try to get the 30A DEF i dont know how to test it so i'm just going to get one of them! Do you think that if i change that one will solve my problem? Thank you!

[CTScott]

These are the fuses that are not working: 1,2,3,4,5,6,7,16,17,18,20,21,26,30,31! I'm gong to try to get the 30A DEF i dont know how to test it so i'm just going to get one of them! Do you think that if i change that one will solve my problem? Thank you!

That 30A fuse doesn't drive the feed to all of those, so I don't think that that fuse is the issue. In the picture I posted above look at the connector above the center relay labeled 4G. See if that connector is actually plugged in. It is a white connector with one very large diameter wire.

[manuel_Ga20]

Yes that is conected right! So and my car is working properly the only thing thati thinkis not working is the locking doors and unlocking with the wireless control!

[CTScott]

Yes that is conected right! So and my car is working properly the only thing thati thinkis not working is the locking doors and unlocking with the wireless control!

OK. How are you testing for power at the fuses?

[manuel_Ga20]

I got a tester that i connect to the chassis and i see if the light turns on in the tester!

[CTScott]

I got a tester that i connect to the chassis and i see if the light turns on in the tester!

OK. Check for power on that big wire in position 4G. That should have power even with the ignition off.

[manuel_Ga20]

I figured out that those slots that i told youwere working right just when the car was on, the cord that you toldme it's fine, so now i tested all. The fuses again with. The. Car. On and it seems that the number 26,23,17 and 16 are the ones not working, and i figured out when i saw the description on the manual that those fuses are for: 26 (id/up/MirHTR, 23 CIG (i think is for the cigarrete and actually i tried and it wasnt working i dont smoke so), 17 panel 1 and 16 panel 2!

[CTScott]

26 (ID/UP/MIR HTR) is fed from the 30A DEF fuse, so you will need to check that fuse out. If you pull it out it should be visibly blown if it is bad.

23 (CIG) is fed by 7,5A ACC2, which is located in the fuse holder that is mounted to the top left side of the main body ECU.

17 (PANEL1) and 16 (PANEL2) will only be on when the headlights are on.

[manuel_Ga20]

So none of them has anything to do with the locking and unlocking system? What could it be then? I'm getting at this afternoon all those fuses that you told me!

[CTScott]

So none of them has anything to do with the locking and unlocking system? What could it be then? I'm getting at this afternoon all those fuses that you told me!

Do the door lock/unlock switches on the drivers door work, but the buttons on the remotes do not?

[manuel_Ga20]

That is correct the doors lock and unlock from inside from the pilot door but it doesn't work with the wireless control!.

PD: I tested the fuses 16 and 17 with the lights on and they do work, the 23 i changed it for a new one now it's working, i'm trying to find the 30A big fuse to see if that is the bad thing about the fuse 26! I guees that will not fix my lock and unlock system!

[manuel_Ga20]

Bro i tried the fuse 26 again with a new 30A DEF and it still no receiving any power! So that's making me crazy! Also the alarm thing that i guess i have to configure it again i think that is the issue with it! What do you think?

[CTScott]

Now that I look at the diagram again, 26 will only be powered when the rear defogger is on.

Is your wireless control the real Toyota one, or is it an aftermarket alarm?

[manuel_Ga20]

I will test it with the defogger on! The alarm is the original one the toyota one! The one that it comes with the key!

[CTScott]

I will test it with the defogger on! The alarm is the original one the toyota one! The one that it comes with the key!

OK. One more thing to try at this point is to make the system relearn the remotes:


http://www.yarisworld.com/forums/showpost.php?p=363019&postcount=6

[manuel_Ga20]

You were right the fuse was good, so all the fuses are working properly! and i bet the ECU it's okay! so i will try to do the things that the other post says! thank you! i let you know tomorrow!

[manuel_Ga20]

CTScott i tried what you told me and it seems that the wireless control works good because i can set it up, i follow all the steps that you told me, after i press LOCK-UNLOCK for 1 - 1.5 seconds, i press the LOCK button for 1 seconds and the doors LOCK and UNLOCK that means that is set up! after that i open the door and get out of the car and i tried to see if the control was already working but again nothing happened! i hope you know how to solve this issue, this thing is making me crazy!

Here is the video of me trying to set it up!
http://www.youtube.com/watch?v=5rTn6Wwy3XA

[CTScott]

CTScott i tried what you told me and it seems that the wireless control works good because i can set it up, i follow all the steps that you told me, after i press LOCK-UNLOCK for 1 - 1.5 seconds, i press the LOCK button for 1 seconds and the doors LOCK and UNLOCK that means that is set up! after that i open the door and get out of the car and i tried to see if the control was already working but again nothing happened! i hope you know how to solve this issue, this thing is making me crazy!

Here is the video of me trying to set it up!
http://www.youtube.com/watch?v=5rTn6Wwy3XA

The video definitely helps. I think you are almost there. When you do the 1.5 second holding of the two buttons, you are supposed to release them and then hold just the lock button for more than one second.

I think you are getting the double cycling of the locks, which is saying that there is an error registering the remote because you are missing that step.

[manuel_Ga20]

actually i did that after holding the two buttons i just held the LOCK button for about 1 sec, after that the car locks and unlocks, and as the post that you sent me about how to configure it, it says that it will lock and unlock once, and that is what i'm getting, so i believe my remote it's okay! but i still don't get it why it doesn't lock and unlock my doors! Thank you for all the advices!

[CTScott]

actually i did that after holding the two buttons i just held the LOCK button for about 1 sec, after that the car locks and unlocks, and as the post that you sent me about how to configure it, it says that it will lock and unlock once, and that is what i'm getting, so i believe my remote it's okay! but i still don't get it why it doesn't lock and unlock my doors! Thank you for all the advices!

OK - If you are getting a single lock/unlock, then it believes that it registered the transmitter.

If I saw correctly, you are using "rewrite" mode, which is two cycles of the ignition switch. Try doing "add" instead, which is one cycle.

[manuel_Ga20]

i will do it now and i will let you know!

[manuel_Ga20]

i just did it and it happened the same thing, i configured it and i received the LOCK UNLOCK once i opened the door and close it and tried to lock it from the control and nothing happened so i don't get it, the control its working, the receiver it's working and all the fuses are in place! I don't know what did i do after i installed my new stereo! :frown:

[manuel_Ga20]

Don't you have any other ideas CTScott?

[CTScott]

Don't you have any other ideas CTScott?

So, the keyless entry system seems to be fine - The remotes can be registered with successful confirmation, so they seem to be fine as well. So, the question is why then does a working system not work?

The only thing I can think of at this point is that the Body ECU believes that the engine is running, since the remotes are not operable once the engine is started. I would try unplugging the harness from the back of your new radio to see if then the keyless entry works. If it does, then we know that there is a wiring issue there that is confusing the Body ECU.