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The high beam relay fails evry 3-4 months - Avalon Toyota Cars & Trucks

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Are you running upsized hiBeams,
the standard bulb is 55/65w,
but is available in 55/90 and 55/130 watt
the relay designed for 11A, wont run with 15A and even less with 22A through the secondary,
also the cable loom goes over some sharp edges, there may be earth leakage from abraded cables, check with ohmneter with lamps unplugged, infinity ohms between cable and earth good, less than infinity problem
not a solution, something to check

Posted on Sep 24, 2008

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When I started my 05 Toyota Camry one night two weeks ago, for the first time my high beams would not go on, what could be the issue, and how can I fix it?


1. Check the fuses for the high beam circuit. There is usually one fuse for the left and one for the right high beam.

2. If the fuses are OK, check the Relay (also normally found in the Fuse and Relay boxes ) for the high beam circuit.
There is normally one Relay for the Low Beam circuit and one Relay for the High beam circuit.

3. If the fuses and relays check out OK, there may be a problem with the high beam switch on your headlight controls.

Dec 27, 2015 | 2005 Toyota Camry LE

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Adjust bright lights on 2005 jeep liberty,dim are good


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.


25401590-5afre3fjdbg1gkzo1rpx5eib-3-0.jpg

Feb 05, 2015 | 2005 Jeep Liberty

1 Answer

Both lowbeams not working, changed bulb and checked relay and fuses, still nothing


Does high beam work.
This could be a faulty flash (high beam switch)
It is unusual for both sides to fail.
Also you could check the actual lightswitch has no lose connections

Apr 03, 2014 | 2007 Saab 9-3

1 Answer

All relays and what there for


Looking over the fender at the fuse box, you see three rows of relays. The first row, closest to the engine, has three relays. Below that are two rows of six relays each. Counting from the left:
Row One 1) Fuel Pump Relay 2) Main Relay 3) Oxygen Sensor Heater
Row Two 4) Horn 5) Tail/Fog Lights 6) Low Beam 7) High Beam 8) Emergency Flasher 9) Heater/AC Blower
Row Three 10) Rear Defogger 11) ABS System 12) ABS Pump 13) Radiator Fan High Speed 14) A/C Compressor 15) Radiator Fan Low Speed
#15 in the lower right corner of the fuse box is the one that seems to take the most grief and fail the most often.

Mar 05, 2011 | 1990 BMW 3 Series

2 Answers

Both of my low beams just stopped working at once. High beams work fine, and bulbs seem to be good. We've replaced the fuses also, and it hasn't worked. what would cause the low beams to both just quit...


The headlight relay has probably failed. This relay is in the underhood fuse box. There are typically two of the same relays in there, so you can swap the low-beam relay for the high-beam relay to verify the problem before you shell out $30 for new relay.

Oct 21, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Were is the relay fuse for the high beam in the 02 camry


Your circuit is complicated. There are 3 DRL (DRL #2, 3, and 4)relays associated with the high beams. There are also 3 fuses for the high beams, one 5 amp for the indicator and relays and 2 20 amp fuses for the filaments. These are probably all in the engine compartment relay box near the battery. See the diagram below.57247d6.gif

Sep 29, 2010 | 2001 Toyota Camry

2 Answers

I have a 2001 toyota celica gt. both front headlights will not come on. the high beams work. the car was hit in the front. does the headlight circuit have a fuse or a relay and where is it located. i found...


Have you checked the light globes ? The globes have a filament for each of Low and High Beams and the Low Beam ones fail much sooner than the high. A bump as you describe may have been enough for the Low beam filaments to fail as the filaments get brittle through age.

Sep 07, 2010 | 2001 Toyota Celica

1 Answer

1997 Honda Civic my high beams just went out te low beams still work. i just cahnged the lights about 4 months ago and im uning sylvania silver


if both high beam lights wont work then it has got to be a problem with either the high beam switch or the relay

May 02, 2009 | 1997 Honda Civic

4 Answers

Headlight main beam not working


Strange headlamp problems on Saabs can often be attributed to a failing Headlamp relay. Here are a few common situations:
Issue1 - Headlamp switch will work backwards: Turn on the switch and theheadlights go off and turn off the switch and the headlights will goon.
Issue 2 - High beams will disappear. You will have nohighbeams. Be sure to check the headlight bulbs PRIOR to ordering therelay. Remember however that it is possible for both high beams burn out at the same time
Issue3 - High beams will not work only the low beams will.
Issue 4 - A single bulb setting (low or high) on either side will not work and bulb replacement will fix it.
You can sometimesfix these issues by removing the relay, taking off the cover andresoldering the connections on the relay bottom. To perform this repair, go to my illustrated tutorial at customsaab.com.
In some cases youwill have to replace the relay to effect a long term cure. The aftermarket replacement can be had at Eeuroparts.com for about $60.00:
Name: Bulb Check Relay
Part Code: 4109070A
Brand: sm_311e0dbd-c670-4bed-a50a-1ba3424ef87d.jpg
Description: Bulb check relay for any 9000 92-98, 900 94-98, 9-3 99-03, 9-5 all.

KAE (Kaehler) made in Germany.
Price: $59.90


Nov 19, 2008 | 1999 Saab 9-5

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