Question about 1994 Chevrolet G20

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1994 G20 Head lights inop

My normal headlights are inop, but my high beams work with no problems. Of course these are separate sealed beam assemblies, (2 left/2 right). All other lights work fine (rear and markers). I would like to find a well laid out electrical schematic other than in a Haynes. My background is that of an aircraft electrician 25 plus years. That's why I asked for the schematic,b ut not to proud to take any advise offered.

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Copyright © 2002 Delmar, All Rights Reserved. Hope this helps.

Posted on Aug 25, 2008

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1 Answer

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

----------

Working of Headlight switch?
------------
Both headlight bulbs blow together?

------------
Car headlight bulbs don't last long?

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2007 Dodge Caliber: Low Beam Headlight Not working

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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?

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2001 Chevrolet Tahoe: Headlights not coming ON?

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2004 Dodge Ram: High Beam Light is DIM?

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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

------------

Low beam headlights Modification?

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

---------
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

-----------
How to Replace a Headlight Switch

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

----------
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

----------------

These will help.

Thanks.

Nov 28, 2012 | 1986 GMC K1500

1 Answer

High beam headlights stuck on replaced switch same problem


It can be issue with headlight switch,but as its already been replaced.Try disconnecting high beam headlight wiring from headlight assembly and reconnect direct external wire from headlight switch to headlight assembly,then by switch see if headlight is getting off and turning on or not.
See below related help links,similar to your issue.Click the link below:----
Only high beams work but head lights not working on Ford F350?

http://howtobyme.blogspot.com/2011/11/only-high-beams-work-but-head-lights.html

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Only high beams working on GMC Savana?---------- High beams stopped working but headlights still work? http://howtobyme.blogspot.com/2011/11/highbeams-stopped-working-but.html
---------- Working of Headlight switch? ----------

Both headlight bulbs blow together?
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Car headlight bulbs don't last long?

------------ Only one head light works on 2001 Dodge Caravan? http://howtobyme.blogspot.com/2011/11/only-one-head-light-works-on-2001-dodge.html

----------
these will help.
Thanks.

Nov 06, 2012 | 2007 Chevrolet Tahoe

1 Answer

I have a 2003 grandprix and the headlights and the back lights and interior light panel don't turn on but when i put the high head lights it turns on but not the back or interior panel lights.


it could be a blown fuse, you may find that the HIGH & LOW beam lights are on separate fuses the back & panel lights could be on the same fuse as the LOW beam or they may have there own fuse,check the fuses in the fuse box........hope this helps......cheers.

Sep 13, 2011 | 1985 Chevrolet Sportvan G20

1 Answer

How do i replace a low beam head light on a 94' camry ?


Things You'll Need:
  • #H11-55W and #9005 replacement bulbs (low- and high-beam bulbs for 2007 and later models)
  • #9006 and #9005 replacement bulbs (low- and high-beam bulbs for 2002-2006 models).
STEPS TO REPLACE HEAD LIGHT: Shut off the Camry's engine and set the parking brake for added safety. Also, make sure its headlights are switched off. Open the hood using the primary and auxiliary hood release latches. Locate the back of the headlight assembly and determine whether the low- or high-beam bulb needs to be replaced. Turn the headlight bulb socket counterclockwise to remove it from the assembly. Unplug the electrical connector from the back of the bulb. Carefully dispose of the bulb to prevent it from shattering or cracking.

Dec 05, 2009 | 1994 Toyota Camry

1 Answer

Head lights aimed to high


Hello...

The adjustment screws/nuts should be located either on the top of the headlamp assembly, behind the headlamp assembly, or near the frame rail by the radiator support.

You will have vertical adjustment screws for each independent beam (separate highs and separate lows, but will be same screw if highs and lows are the same bulb). You may also have additional horizontal adjustment screws as well

Park your car on a level ground 30 feet from a wall and measure the height from the ground to the bulb and mark on a wall (do this for highs beams and low beams if the bulbs are separate, if highs and lows are the same bulb, only do it for the lows)

For Low Beams: If the headlights read VOR, then aim the brightest part or cutoff part just below the mark on the wall. If it says VOL or nothing, aim them 2 inches below the mark on the wall.

For High Beams (if separate from low beams): Aim the headlight directly at the line you marked on the wall.

Nov 12, 2009 | 2005 Chevrolet Colorado

1 Answer

How do i adjust the headlights on my 1988 mercedes 420 i need to aim or replace my head lights i do not know the first thing about it


The adjustment screws/nuts should be located either on the top of the headlamp assembly, behind the headlamp assembly, or near the frame rail by the radiator support.

You will have vertical adjustment screws for each independent beam (separate highs and separate lows, but will be same screw if highs and lows are the same bulb). You may also have additional horizontal adjustment screws as well

Park your car on a level ground 30 feet from a wall and measure the height from the ground to the bulb and mark on a wall (do this for highs beams and low beams if the bulbs are separate, if highs and lows are the same bulb, only do it for the lows)

For Low Beams: If the headlights read VOR, then aim the brightest part or cutoff part just below the mark on the wall. If it says VOL or nothing, aim them 2 inches below the mark on the wall.

For High Beams (if separate from low beams): Aim the headlight directly at the line you marked on the wall.

Oct 26, 2009 | 1991 Mercedes-Benz 420

1 Answer

Cannot adjust low and high beam headlights separatlyLexus LS 430


Shine your head lights on a wall either in your garage or outside wall and re-adjust your head light back to were you think you had them last. Use the high beam and the low beam settings and you will be able to beam the light were you think they should be. Common problem with most new vehicles now days, low beams don't seem to be bright enough.

Aug 14, 2009 | Lexus LS 430 Cars & Trucks

2 Answers

1998 Ford Mustang Headlight Adjustment


The adjustment screws/nuts should be located either on the top of the headlamp assembly, behind the headlamp assembly, or near the frame rail by the radiator support.

You will have vertical adjustment screws for each independent beam (separate highs and separate lows, but will be same screw if highs and lows are the same bulb). You may also have additional horizontal adjustment screws as well

Park your car on a level ground 30 feet from a wall and measure the height from the ground to the bulb and mark on a wall (do this for highs beams and low beams if the bulbs are separate, if highs and lows are the same bulb, only do it for the lows)

For Low Beams: If the headlights read VOR, then aim the brightest part or cutoff part just below the mark on the wall. If it says VOL or nothing, aim them 2 inches below the mark on the wall.

For High Beams (if separate from low beams): Aim the headlight directly at the line you marked on the wall.

Mar 16, 2009 | 1998 Ford Mustang

1 Answer

1994 ford f-150 with day time running lights headlightnot working


Daytime Running Lamps
The daytime running lamp (DRL) system is designed to turn the high beam headlamps on, with a reduced light output, and without illuminating the high beam indicator lamp in the instrument panel. You have a DRL Module.
The multifunction switch is the stalk on your column.

This is 96 F150 circuit. Don't have 94.

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Symptom Chart, Headlamps HEADLAMPS Condition Possible Source Action
  • Headlamps Inoperative
  • Circuitry open/shorted.
  • Damaged headlamp switch.
  • Blown fuse.
  • GO to Pinpoint Test A .
  • Headlamps On Continuously
  • Circuitry open/shorted.
  • Damaged headlamp switch.
  • GO to Pinpoint Test B .
  • High Beams or Low Beams Inoperative
  • Circuitry open/shorted.
  • Damaged multi-function switch.
  • GO to Pinpoint Test C .
  • One High Beam or One Low Beam Headlamp Inoperative
  • Circuitry open/shorted.
  • Damaged connector.
  • Headlamp bulb damaged.
  • GO to Pinpoint Test D .
  • Flash-to-Pass Inoperative
  • Blown fuse.
  • Circuitry open/shorted.
  • Damaged multi-function switch.
  • GO to Pinpoint Test E .



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Feb 25, 2009 | 1994 Ford F150 Styleside Supercab

1 Answer

Head / fog light adjustment


on each headlamp assembly, there will be either one or two plastic nuts that you can turn.

If you only have one nut on each, that will adjust the vertical aim of the headlights.

If you have two nuts on each, one will adjust the vertical and the other will adjust the horizontal.

Park your car on a level ground 30 feet from a wall and measure the height from the ground to the bulb and mark on a wall (do this for highs beams and low beams if the bulbs are separate, if highs and lows are the same bulb, only do it for the lows)

If the headlights read VOR, then aim the brightest part or cutoff part just below the mark on the wall. If it says VOL or nothing, aim them 2 inches below the mark on the wall.

Jul 02, 2008 | 1994 Toyota Supra

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