Suddenly, my headlights do not work (both). My parking lights work but the lo-beams won't come on. I check the fuses but they are fine and I can only imagine that it is the headlight relay. The high-beams work fine. Any suggestions?
My 2011 Traverse had no LOW BEAMS ( Right and Left Side )
I changed the LOW BEAM RELAY ( a 4 prong relay ) in the fuse / relay box located under the hood on the passenger side. It didn't change the situation. Voltage was good at the relay terminals and I plugged the relay into another GM car and it worked fine. The NEXT place the voltage goes to is the LOW BEAM HEADLIGHTS. The easier way to change them on a 2011 Traverse is to go through each wheel well - there is an access port behind the wheel well liner. YouTube has photos and videos on how to take this apart. Don't try to attack the problem from above in the engine compartment, the wheel well is the easier ( notice I said easier not easy ) way to go about it. BOTH of my Low Beam headlamps driver side and passenger side were burned out. I just bought the vehicle ( yeah...I know...who doesn't check the lights before buying a vehicle - right ? ) and at my wits end figured that it is such a pain in the rear to change the bulbs, that the lazy bastards that owned the vehicle just drove with one headlight and THEN the second one went out. If you can hear your low beam relay clicking ( you can feel it too if someone turns the headlights on with the key in the ignition turned to ON ) and you're getting 12 volts or higher at the relay terminals in both places ( the relay coil power and relay output terminals ) then the only thing next is the bulbs themselves. Thank God for small miracles. NOBODY likes an electrical / electronics problem.
SOURCE: chevy cavalier 1996 headlight not working,day
Did you replace the relay for the day time running lights which for some dumb reason is mounted under the front bumper? Climb under and look straight up and you should see it...mine was mounted in about the center (on the frame in front of the radiator. Sounds similar to an issue I had and it cleared up once I replaced the part...had to get from dealer still.
SOURCE: My headlights on my 2000 monte carlo does not work
Day time running lights run low voltage to the high beam bulbs so it sounds to me like you need two new bulbs or you need to check the fuses and see if any need replaceing.
SOURCE: 2002 Impala, headlights work however they blink
This may be the start of a worse problem that the Impala eventually developes. The Body Control Module has a design flaw along with the Passlock anti-theft system. You may get away with just replacing the BCM for now. It needs to be reprogrammed at the dealer and the car will not start if you replace the BCM without reprogramming it. I would also recommend against replacing it with a remanufactured one. Repair cost is going to be around $500 at the dealer.
If the Passlock system is also at fault, add another $500 for a new ignition switch and cylinder. If you haven't experienced random starting problems yet, they are coming soon. When you turn the key, nothing happens. I thought my 2002 Impala may have been immune to these problems that I've heard about constantly, however, at 90,000 miles, it became "possessed". The symptoms started slowly and got worse. Beside the interior lights flashing like strobs in the middle of the night (while the car was not running), the headlights would occasionally click off and on a few times while I was driving at night.
The relay switch you hear clicking is the Battery Rundown Protection relay. I'm suprised your battery hasn't drained to the point where the car will not start in the morning.
SOURCE: parking lights turn on, headlights
If you ran a separate wire to the lights, it's not a ground problem. looks like you may have a bad switch.
or bad wire. you can use an ohm meter to check the wire from the switch to the light. a test light is
easier. test for voltage at both ends of the fuse, at the switch and the wire before the light. check the
connection at the light, sometimes the connections get corroded and voltage will not pass thru. good luck!
[Information] For a 2002 Toyota Camry, the Daytime
Running Lights (DRL) operate utilizing the High Beams (inner Lamps closer to
the center of the vehicle front) at a reduced power.
[The troubleshooting process:] Review the Owner's Manual and ensure the test
configuration matches the following criteria:
1. According to the 2002 Toyota Camry Owner's Manual (Check your Owners Manual):
"The DRL system will make your headlights come on at a reduced brightness
when:
The light switch s in the "DRL" position.
The ignition is on with the engine running.
The headlight switch is off.
The parking brake is released."
2. Set the Test Conditions according to Step 1 above.
3. Check the headlight bulbs to ensure they are not
burned out. If one burns out, there is a fair chance that the other would have burned
out at the same time. Replace as necessary.
In this case, if the high beams operate, the DRLs should also operate.
4. Test the system, ensuring the step 1 conditions are set. (Engine running, Multi-function
Switch on Turn Signals in "DRL" position, headlight switch off
(repeating what the manual says -- it should be obvious that in the
"DRL" position, the headlight switch should be off / do not have the
switch positioned to "High Beam"), and the Parking Brake
"off").
5. If DRL lights do not work, check the engine compartment Fuse and Relay Box.
there is a 5 Amp DRL fuse -- replace it with the spare. Test (step 4).
6. If it does not work, swap around or replace relays -- there are three (3).
Any one of them could be bad (stuck or burned out). Test (step 4).
7. Other less likely possible issues
could be that the Multi-function Switch is broken or a connection / wire is
broken. [Beyond the scope of this
process.]
My problem was that the test configuration did not have
the engine running and parking brake off - Step 1. Problem solved with much
thought, repetitive tests on the vehicle and going back to the basics -- what
does the Owner's Manual say and where are the applicable fuses and relays
located?
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