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2007 Toyota Low Beams


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MrorMrswiz
New User

Nov 13, 2012, 5:55 PM

Post #1 of 7 (1893 views)
2007 Toyota Low Beams Sign In

I have a 2007 corolla S 5 speed. Low beam lights stopped working at the same time. I have done lots of digging. Solutions attempted:

DRL swith under brake turne it over. Did not work
Under steering wheel yellow wire (see picture). Did not work
Checked one of the low beam filiments, appears to be good


Here is the infor on the yellow wire:
I couldn't take the headlights turning off and on during bright sunlight so I decided to disable the automatic headlights and the DRL's. In order to do this I simply snipped the yellow wire going to the DRL module above the gas and brake pedal, then grounded the side that goes to the module and covered the other side. There was a convenient ground right by the module that I used. I tested it out and couldn't find any ill side effects. No DRL's and I don't have to mess with any brake wiring. The yellow wire is a signal that the car is running. If the yellow wire is grounded the module doesn't think the car is running and if it's not grounded it thinks it's running.

Here is a picture:






Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Nov 13, 2012, 6:43 PM

Post #2 of 7 (1836 views)
Re: 2007 Toyota Low Beams Sign In

If you reconnect the yellow generator sense wire, do your low beams work?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


MrorMrswiz
New User

Nov 13, 2012, 6:55 PM

Post #3 of 7 (1827 views)
Re: 2007 Toyota Low Beams Sign In

No. That was my last thing I did. I tried all mods which were easy. Could it be th low beams.? Or the level on the side. I have schedule recall repair for ECM. But I am confident it's not the problem


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Nov 14, 2012, 5:53 AM

Post #4 of 7 (1796 views)
Re: 2007 Toyota Low Beams Sign In

Do the high beams work?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


MrorMrswiz
New User

Nov 14, 2012, 6:38 AM

Post #5 of 7 (1788 views)
Re: 2007 Toyota Low Beams Sign In

High beams work & fog lights work also.


MarineGrunt
Enthusiast
MarineGrunt profile image

Nov 14, 2012, 6:47 AM

Post #6 of 7 (1788 views)
Re: 2007 Toyota Low Beams Sign In

Isn't there a separate relay or fuse for the low and high beams? I know it's a different vehicle but I believe there is on my wife's Envoy. Probably not it but thought I throw it out there.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Nov 14, 2012, 4:37 PM

Post #7 of 7 (1765 views)
Re: 2007 Toyota Low Beams Sign In

If the high beams work, that means the headlamp module is turning on the headlamp relay to supply power to the high beams. That doesn't mean the module is turning on the head lamp relay when the low beams are commanded on.

You really need to get hold of a wiring diagram for this system and use a volt meter to find out what has power and what doesn't.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.






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