My 2007 Honda CRV, only DRL lights working suddenly. Pull in stalk and high beams will come on until you release it. No low or no high beams in normal operating modes on switch.

Low Beam System Operation
The headlamps may be turned on two different ways. First, when the end of the of the turn signal/headlamp switch lever is turned to the second detent position, the headlamps will illuminate. A ground signal is provided to the DRL control module. The module then provides a ground path to the coils of the HLP relay. Since the head relay is provided with battery voltage to both the contacts and the coil, the coil becomes energized and closes the contacts providing voltage to the DIM relay. With voltage and ground provided, the low beam lamps light. Second, with the switch in the OFF position, for automatic lamp control (ALC). During ALC the headlamps will be in one of the following modes of operation:
• Daytime running lamp (DRL) operation in daylight conditions, refer to DRL below for the operation of the circuit.
• Low beam headlamp operation in low light conditions. When the ambient light sensor senses a low light condition for approximately 15 seconds, it will cancel DRL operation and turn on the headlamps at 100 percent intensity. A path to ground is provided to the coil of the HLP relay. With a direct path to ground provided to the headlamps though the DRL control module, the headlamps will light at 100 percent intensity.
High Beam System Operation
The high-beam headlamp operation is controlled using the turn signal/headlamp switch lever on the steering column. In order to change headlamp operation from low-beam to high-beam, push the switch lever toward the instrument panel (until the detent is felt) and release. With the switch lever in the high beam position, ground is provided to the DRL control module through the turn signal/headlamp switch and splice pack 200 to G200. The DRL control module provides a ground to the coil of the dimmer relay. Since voltage is being applied to the dimmer relay coil, it becomes energized. Voltage is then applied through the closed contacts of the dimmer relay and the to the high beam lamps in the headlamps. Since ground is provided to the headlamps through the closed contacts of the energized DIM relay, the high beam lamps light. The high-beam indicator (blue) in the instrument cluster will light during high-beam headlamp operation. In order to change headlamp operation back to low-beam operation, pull the turn signal switch lever toward the driver (until the detent is felt) and release.Your best bet , take it to a qualified repair shop.

I think DRL stands for daytime running lights. Is there a relay you are over looking if not I suspect the switch

please post full symptoms on HL.
high beams not working right, got that.
but what is wrong?
dead, both sides
lows are not dim,that confuses me, dim means weak lamps.

my guess is high beams both sides are dead.

lets work that.
well if both failed, that hints to me the fuse blew,
but depends, on how its wired. on the newer jeeps its far more complex 2007 up. TIPM issues tuff.

2005 liberty why are most post on jeeps for this car,? odd. huh?
im the electric guy, that like gears more....

the 05 has 2 fuses, id bet both didnt fail.
JB fuse 26/27. (jb means junction box fuse box)

there are 3 jeeps, Canada, USA and export.
if in canada (you never said) they have wonderous, DRL there.
called Daytime Running Lamps. (makes head lights complex) and fun. LOL
i can guess any of that,
the BCM runs the head light relays.
we check fuse, sure good.
then we scan the BCM got head light errors. yah think?
that is correct, we scan first. in most cases the BCM will
tell you why its missing up.(what path)!!!!

the low beam relay works
the high does not, and both fuses will not blow so.
that means the relay is bad, or the BCM forgot to close it.
yes, BCM;s can messup
or the HL switch failed to tell the BCM you want HIGH.

does the flash high beams mode work (pull stalk to flash)?

recap. and 1 example of how to diagnose. (slow way)

1. fuses good.?
2. Scan tool scans shows no HL related or power errors.!!!
3. HL switch works , BCM input good. for hi beams.
4. BCM out goes to 0v, (good) High beam command is good)
5. relay closes, 12vdc across coil good. (from above)
6. relay out out dead 0v, input 12v ok, relay is bad.

the fast way is to check 5 first (middle of path is fastest)
or swap in a new relay if shop has no tools and simple voltmeter.
the relay costs more that the meter, so.....
if no DRL, then remove the DRL relay below and bingo yours.

this the DRL setup, go to alldata.com and read. its there.

the low beam lights are switched by the stalk. power goes in the stalk and you switch it between the high beam and low beam from that. If it works intermittently it could be bad contacts in the light switch/stalk. Jon

Headlamp relays are most always in the engine compartment in one of several power distribution boxes. It could be the dimmer switch, DRL module, or both bulbs. This happens because the lights are so bright, one low beam has burned out, and goes unnoticed until the other one burns out also.
Daytime Running Lamps (DRL) use the low beam but at a reduced power, which shortens their working life. Hope this helps.

yes, it's a complicated circuit, so there are lots of possible reasons. The most likely problem is the DRL relay or the hi-lo/dimmer switch. Since you say the DRLs work, I would check the hi-lo beam switch to see if it has continuity between the tan and yellow wires when set to low beams.

You have to check the headlight switch, and headlight relay, as these are the only two components that control both high and low beam headlights. You should hear a slight click from the control stalk switch as you turn it, and then you should hear a faint relay click from elsewhere a fraction of a second afterwards.

Also, if this is a car with daytime running lights, the Honda DRL modules are known to develop thermal cracks in the solder on their relays; this is an easy fix for anyone with simple electrical repair experience. This will often start as an intermittent problem and gradually worsen.

Followup with more detail if you check the above.

On my 2007 Honda CR-V The DRL code appeared on the dash board. Additionally I had only one high beam (on the passenger side); both low beams were fine, but I did not have a Daytime Running Light on the drivers side. The DRL code was really misleading because the real problem was that the high beam element in the headlight bulb was burned out. Note that the daytime running light is not a seperate bulb -- it is the high beam element which is powered at a low voltage. Once I replaced the head light bulb everything worked fine and the DRL code on the dash board was gone. So if the DRL message appears what you really need to do is replace the headlight bulb (there are YouTube videos which show how to do this - but search for headlight replacement, not for DRL fix). Be careful not to touch the new bulb with you hands since premature burnout can occur from the grease off your skin. I got my bulb from Wal-Mart for $8.88 (it's a 9003/HB2 for the 2007 CR-V) -- that's a pretty cheap fix.

The problem with the DRL issue describd in the above posts is the DRl module(it needs to be replaced). The buzzing relay and intermittent on/off of passenger side DRl are indicators that the module needs to be replaced.

Some time back I found some data on a similar website suggesting that the Day Light Running circuit board, just under the steering column, developed cracks in some of the soldered joints. Your high beams should also be affected with loss of day light running lights.
Resoldering repaired the continuity of the circuits. Ours is now working quite reliably. Some of the defective areas developed slight brownish discoloration, that's how I was told to recognise the areas to be resoldered. Hope this will help you solve your problem.