boulder_dweeb
boulder_dweeb Reader
12/23/20 9:48 a.m.

The car has replacement headlamp assemblies. High beams are BRIGHT. Low beams are barely useful.

I kinda remember a hack to put brighter bulbs in the low beam sockets.  Several forums talk about HID bulbs.

Has anyone else had this problem? How did you fix it?

TIA,

Rog

mr2s2000elise
mr2s2000elise UltraDork
12/23/20 10:01 a.m.

My wife's 03 RX (older than your Corolla) has very similar issue. Instead of doing the hack where you can run a higher wattage bulb, I installed a DDM hid kit for the low beams. Problems solved for us . 

californiamilleghia
californiamilleghia SuperDork
12/23/20 10:30 a.m.

simple thought , did you check the grounds ?

or run a thicker ground wire ?

Dusterbd13-michael (Forum Supporter)
Dusterbd13-michael (Forum Supporter) MegaDork
12/23/20 10:48 a.m.

Also, a lot of times aftermarket headlights come with stupendously cheap and E36 M3ty bulbs. Step one should be highwr wattage hella bulbs. And a good headlight alignment. 

adam525i (Forum Supporter)
adam525i (Forum Supporter) HalfDork
12/23/20 11:30 a.m.

I posted this in the other recent headlight thread, it looks like your Corolla uses 9006 bulbs for the low beams. You can replace them with a 9012 bulb with a modification to one of the tabs on the bulbs to make it fit. These are the same wattage as original so no worries with wiring or heat but a much more efficient design, that means a lot more light output. I did this with my high beams on my car and the difference was worthwhile and easy to do.

https://store.candlepower.com/mohirbuba.html

Pete. (l33t FS)
Pete. (l33t FS) MegaDork
12/23/20 11:48 a.m.

Try OEM headlights.  Aftermarket headlights usually have atrociously bad patterns.  Adding brightness won't make it better.

andy_b
andy_b New Reader
12/23/20 12:41 p.m.

I have the same issue with my 03 Corolla (same generation). I'm definitely going to try the 9012 bulb retrofit. 

iceracer
iceracer MegaDork
12/23/20 1:51 p.m.

First, check the grounds.

boulder_dweeb
boulder_dweeb Reader
1/22/21 11:39 a.m.

Thanks to Adam525i!

Did the 9012 hack on both low beams. Works great!

Thanks again.

Rog

WonkoTheSane (FS)
WonkoTheSane (FS) SuperDork
1/23/21 2:33 p.m.

In reply to boulder_dweeb :

Thanks for following up for those playing along at home :)

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