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Posted on May 02, 2010

Toyota Sienna 2004 Headlight Problem

Toyota 2004 Sienna has a headlight out. both work on high beams. replaced them with new bulbs and same light still does not work. proved the bulbs were good by swapping them. at a loss as to why only the low beam would not work on one of the headlights.

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  • Posted on May 02, 2010
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If you have the HID bulbs, and there is moisture in the bottom of the assembly, the high voltage box at the bottom will not work. this requires removing the whole headlamp, removing the circuit board from the bottom and drying out. I have done mine twice before finally finding how water was getting in at the top seam of the lamp assembly. You will have to dis-assemble part of the wheel well and bumper cover to gain access to all the mounting bolts. Best of luck

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There should be separate fuses for high and low beams on a Prius. If one of your headlight bulbs is bad, it could have blown the low-beam fuse. Check for blown fuses behind driver's side headlight fuse panel. If new one blows, replace headlight bulbs and try again.

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Lights will not turn on

HEADLIGHTS NOT WORKING


It can be faulty headlight switch or issue with its wiring. Or its faulty head light fuse.


==========

To troubleshoot the issue i suggest you few help links with appropriate solution. So you can follow the test and confirm what exact problem is there in your case of headlights not working:-----

Click the link below: -----


All headlights not working?

http://repairhelpcenter.blogspot.com/2012/01/all-headlights-not-working.html

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Working of Headlight switch?
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Both headlight bulbs blow together?

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http://technoanswers.blogspot.in/2012/06/2007-dodge-caliber-low-beam-headlight.html

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2001 Chevrolet Tahoe: Both Low Beam Lamps Not Working?

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How to replace HID headlight bulbs for lexus 400h?

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These will help.

Thanks.

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Daytime Running Lights Inoperative 2002 Toyota Camry

[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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Can the headlight assembly of a 2004 Toyota Sienna be disassembled to replace a faulty low beam bulb?

The whole bulb will have to be replaced. One bulb has high/low beam. You should be able to access it from behind the light assembly. You should have a locking device at the headlight assembly and be able to pull the assembly out to make it easier.
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Passenger side headlight only works on high beam. Have replaced bulb, still no low beam

If you put it in; did you touch the bulb with your fingers? If so, I've seen bulbs pop as soon as they're put in. The oil from your skin leaves a residue, and the heat goes to it, and blows the bulb. wear jersey or latex gloves when you re-install new bulb. If it still doesn't work, replace headlight bulb socket
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Low beam not work !!

replace the headlight bulbs. Usually when the bulbs blow out the low beam blows out first, but the high beams still work. If you want and need both low and high beams to work then replace the headlight bulbs with brand new ones and I garauntee that both low and high beams will work
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You headlight lamp have a diffuser mechanism which allows it to flip between the hight beam and low beam feature of the bulb. In fact, you high beam will function even if the low beam is not working.

I would recommend the purchase of the new headlight lamp. It would cost you you any where from $15.00 per unit to get a replacement lamp
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