define checked the fuses? swapped with known good? They can look good and are bad. You can ignore ground issues if the high beam works. Make sure the socket is not corroded and if you have a multimeter, you can start checking for voltages at the fuse and at the socket. There aren't a lot of variables in play here, you just need to find where the voltage stops.

 

2009 Corolla Same Problem

I have the same problem with my 2009 Corolla; no drivers side low beam; 2 new bulbs; high beams work on both sides. Still some fuses to check by driver's knee but if anyone had specific experience that would help. Not much use to tell us to keep checking fuses.

 

Well ok let me put it this way (and this is why I said check for voltage). If you have voltage at the fuse, fuse may have continuity (takes a TINY connection to trip up a meter), but can't flow enough current for an actual bulb (essentially an open). If you don't have voltage at the fuse, go back a step. That's the power mosfet assembly for the low beam. So you can check its source signal for voltage (requires disassembly of that the engine compartment fuse block), if there is voltage, you are about the buy a very expensive part (power mosfet assmbly, its not working). If it doesn't well...your about to look into a more expensive part, the ECU. Check its stalk input. If its there, bad ecu, if its not bad switch. There are very few parts in the lighting chain. Stalk -> ECU -> mosefet assembly -> bulb. Given only one side is dead, its likely the power mosfet assembly IF lack of voltage can be traced to the fuse, it doesn't leave many options.

In terms of the OP, first time member joins, never comments back, yeah, I typically don't go more into detail until I know they are actually troubleshooting and checking. Especially since it takes a fair amount of time to post pin, socket, location details.

Your corolla will have relay's for the low beam, not mosfets, they are more likely to stick, make sure they both click when you turn your low beams on.

 

I'm not even sure if the above is in English but I sure wish you were closer. I have a parasitic drain in my Sienna that nobody (mechanics/stereo shop/etc) is willing to dive into and find out where it's from.


I was told I could leave it sit for a week and I'd have no problem starting it up but in the mean time my wife and I are alternating it every week and letting the Sequoia and Highlander sit on the other weeks.

 

Hey SP, thanks for ALL the info! While I no longer have my '12 HiHi SE I try to glean whatever info I can from here to see if any of it is applicable to my '15 RAV4 XLE. :+1:

 

Start pulling fuses until it doesn't die :lol: Parasitic drains are a pain.