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