Rep Power: 195

on my '01. I know there is a TSB out regarding this, but it was (supposedly) fixed.

Is there any other possible easy answer? (Other than busted bulbs.)

 
Rep Power: 811

could be bad headlight harness grounds behind the front bumper on each side. they do get corroded easily from road spray. also could be the fuses or relays for the lo beams.

 
Rep Power: 307

The ground path for the headlight bulbs is made through the headlight switch not outside. The fuses and the relay(s) are common to both high and low beam operation.

Assuming you have working high beams, ? and not 2 bad bulbs...?

Inspect pin 6 RED/WHT at the headkight switch it is the low beam line that gets a ground through the headlight switch to light them.

 
Rep Power: 811

how do you explain my lo beams not working when i had one of the grounds under the bumper disconnected.

 
Rep Power: 307

https://www.civicforums.com/forums/a...1&d=1254923682

Pin #12 of the switch to G401 is the ground path for 01-03

https://www.civicforums.com/forums/a...0&d=1267189121

https://www.civicforums.com/forums/a...6&d=1281967392

 
Rep Power: 0

Not sure if this is what you meant by TSB, but there is a recall out for Civic low beams. Apparently, some part of them can overheat causing some wires to melt...