Headlights do not work.

check ALL FUSES FIRST IN CAB/ENG.BAY BOXES
ARE PARK LAMPS ALL GOOD OUTSIDE?

ENGINE RUn? ,DRIVEs.
SERVICE MANUAL COVERS ALL THIS./

check bulbs

HEADLIGHTS NOT WORKING

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

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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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• Car headlight bulbs don't last long?

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2007 Dodge Caliber: Low Beam Headlight Not working

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

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2003 Toyota Camry: Headlights Work Intermittently?

http://technoanswers.blogspot.in/2012/04/2003-toyota-camry-headlights-work.html

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Chevy Tahoe: Low Beam Lamps are not working?

http://technoanswers.blogspot.in/2012/04/chevy-tahoe-low-beam-lamps-are-not.html

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2001 Chevrolet Tahoe: Headlights not coming ON?

http://technoanswers.blogspot.in/2012/04/2001-chevrolet-tahoe-headlights-not.html

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2004 Dodge Ram: High Beam Light is DIM?

http://technoanswers.blogspot.in/2012/04/2004-dodge-ram-high-beam-light-is-dim.html

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2001 Chevrolet Tahoe: Both Low Beam Lamps Not Working?

http://technoanswers.blogspot.in/2012/04/2001-chevrolet-tahoe-both-low-beam.html

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Low beam headlights Modification?

http://schematicsdiagram.blogspot.in/2012/04/low-beam-headlights-modification.html

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How to Replace a Headlight

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight.html

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How to Replace a Headlight Bulb

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-headlight-bulb.html

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How to Replace a Headlight Switch

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-headlight-switch.html

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How to Replace a Headlight Assembly

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight-assembly.html

How to Replace a Park Light Assembly

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-park-light-assembly.html

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Low beam headlights Modification?

http://schematicsdiagram.blogspot.in/2012/04/low-beam-headlights-modification.html

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Headlight Assembly Removal On Honda Accord

http://technoanswers.blogspot.in/2012/06/headlight-assembly-removal-on-honda.html

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Honda Headlight Assembly Removal
http://schematicsdiagram.blogspot.in/2012/06/honda-headlight-assembly-removal.html

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How to Replace a Headlight Door

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight-door.html

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How to replace HID headlight bulbs for lexus 400h?

http://schematicsdiagram.blogspot.com/2012/01/how-to-replace-hid-headlight-bulbs-for.html

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These will help.

Thanks.

These trucks are known for bad multifuction switches.
the switch that i talk of is the signal switch , the handle is the switch, it bolts to side of steering column . this switch controls the signals and the headlights and high /low beams. the other thing is the headlight switch connector, the connector some times goes bad and starts to melt or just comes out of the connector. you will need to remove the cover to steering column, the screws are located under the bottom cover in holes. remove cover and check connector and then test for power if you have power going into switch but not coming out then switch is bad.

the last thing is to make sure the bulbs are good , make sure the headlight bulbs are good , and also the driving light bulbs, test for power at the connectors to those lights to.
You will need to do a little testing to find the problem.

Try checking both a; your fuses, and b; check your bulbs. You should have two fuse boxes, one under hood and one in or under the dash. Check those for bad, blown or weak fuses. And check your headlights bulbs for them being good and their connection. If this doesn't fix your problem, you may check out your highbeam switch.

take a look at the dash ground wire located next to the right of ebrake release handle. if the bole holding the ground wire is loose, which was quite common it will cause all kinds of feed back problems, like described in the comments section to your question.

It is either the headlight switch,or the dimmer switch.

Headlight switch on dash???

I would take a look at your headlight dimmer switch. The dimmer switch works independent of the DRL system.
Below is the wiring diagram for you vehicle.
Good luck and let me know.
Regards,

With electrical problems I always look for a bad ground wire, especially on older vehicles. Look for any wire that goes to an inner fender or the engine, there maybe a faulty relay in the circuit too. good luck, Chuck