Question about 1998 Cadillac DeVille

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Adjusting headlight High beam too low on driver side and too high on pass. side. Low beam too low.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 203 Answers

SOURCE: 2001 cad deville high beam only

probably the connections on the lever/arm .

Posted on Nov 24, 2008

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  • 155 Answers

SOURCE: 1998 cadillac deville high beam head lights only

Classic switch problem. Replace your switch and this will fix your problem.

Posted on Jun 11, 2009

subikid90
  • 180 Answers

SOURCE: 1998 cadillac deville. i do not have low beam

No the dimmer switch doesn't change high/low beams just interior lights. Did you try changing the bulbs?

Good Luck,
Subikid90

Posted on Mar 04, 2010

  • 376 Answers

SOURCE: low beam headlight work but

If you haven't already changed the bulb try that.It could have low beam element burned out.

Posted on Mar 07, 2011

flamer_hot22
  • 61 Answers

SOURCE: left side low beam not working

if you have tester try test the wire or the bulb case, you will see why did not work, i think bulb wire is defective

Posted on Oct 28, 2012

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Headlights not working on 2003 alero/all other lights working/checked fuse and changed relay


Here is how they are suppose to work .
Headlamps
The headlamps may be turned on two different ways. First, when the driver places the headlamp switch in the HEADLAMP position, for normal operation. Second, with the headlamp switch placed in the OFF position, for automatic lamp control (ALC). During ALC, the headlamps will be in day time running lamp (DRL) operation in daylight conditions, or low beam operation in low light conditions. The LH HDLPand RH HDLP fuses, supply battery positive voltage from the underhood junction block to the left and right headlamps. The circuit continues through both low and high beam lamps, then back to the underhood junction block. The low beam and high beam circuits continue to the headlamp switch. The low beam and high beam circuits also provide the body control module (BCM) with both low and high beam inputs. The headlamp switch includes the dimmer switch and the flash-to-pass switch. When the headlamp switch is placed in the HEADLAMP position a path to ground is provided. Ground is provided at G201. Depending on the position of the high/low beam switch, either the low or high beam circuit will now have power and ground.
The LH HDLP fuse in the underhood junction block, supplies battery positive voltage to the automatic lamp control (ALC) headlamp relay coil circuit. The ALC relay switch circuit is connected to the low beam circuit at the headlamp switch. When the headlamp switch is placed in the OFF position, the BCM will automatically turn on the low beams in low light conditions. The BCM energizes the ALC relay, closing the switch contacts and grounding the low beam circuit. Ground is provided at G201. With the headlights in the low beam position, the high beams may be momentarily turned on or flashed with the dimmer switch handle. The flash-to-pass feature is accomplished by pulling the dimmer switch handle toward the driver. The headlights may be switched to high beam with the opposite movement of the dimmer switch lever. When the headlamp dimmer switch handle is pulled toward the driver, the flash-to-pass switch closes grounding the high beam circuit. Ground is provided at G201. Both high beams will remain on until the driver releases the switch handle.
If the driver places the headlight switch in the HEADLAMP position , the headlights will remain on until turned off or the battery runs dead.

Finding a wiring diagram to use along with a DMM - digital multi-meter (voltmeter ) To test the electrical circuits for the headlamps B+ power & ground side of the circuit is the way to find a fix .
Watching a few basic electrical testing video's on youtube may help you .
Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
How to Use Multimeter to Troubleshoot Common Problems
The Trainer 18 Electrical Testing Tips
Can take years to learn how to trouble shoot automotive electrical systems properly .


Nov 21, 2017 | Cars & Trucks

1 Answer

Where, exactly, are the headlight adjusters for the drivers side headlights?


What is the proper adjustment/
Head light adjusters are part of the head light assembly and yes high and low beam are adjusted as one unit normally. Proper adjustment is done on a machine, at an equipped facility.

Mar 27, 2016 | Cars & Trucks

2 Answers

Driver side headlight goes dim on high beam while passenger side is bright


bad connection or bad earth check all connection or bulb

Jan 24, 2016 | Cars & Trucks

1 Answer

Driver side low and high beam on but dim. Passenger side low beam normal but high beam on and dim


I would check for the groundwire continuity

Driver side - dim low beams and no hi beam - Subaru Outback ...

www.subaruoutback.org > ... > General > Electrical & Electronics
Oct 11, 2014 - Hi everyone, My drivers side headlights are dim on low, (car has separate bulbs ... When the headlight switch is turned ON, but for low beams, ...

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Mar 12, 2015 - 10 posts - ‎4 authors
The high beam continues to work on both sides...I pulled the Driverside headlamp fuse and then both left and right beams lit up but very dim.

High beams ok, but not low beam - one side only - TDIClub Forums

forums.tdiclub.com > ... > VW MKIV-A4 TDIs (VE and PD)
Jan 23, 2014 - My driver's side lights are working fine - high and low beams. ... But it definitely looks like the big lamp on the driver's side gets brighter when ..... Drivers side headlight is very dim on low beam and goes out when on high beam ...

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Jan 04, 2016 | Cars & Trucks

2 Answers

Head light have low but when using high does not work just on one side drivers side


HELP! headlight not working even after change - Nissan Forums ...

www.nissanclub.com/...nissan.../302674-help-headlight-not-working-eve...

Apr 1, 2010 - 13 posts - ‎6 authors
My passenger side low beam headlight recently went off on me. ... I've changed the bulb again, and changed the fuse just in case, but .... My driver side headlight wire got loose so when i hit a bump at night if would flicker. ... When you notice one side not working (Low or High beam) it could be the module. Headlight replacement
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Dec 20, 2015 | 2004 Nissan Sentra

1 Answer

Why does driver side headlight only work on low beam?


I mite be able to tell you if I knew what year , make an model vehicle it is .

Oct 23, 2015 | Cars & Trucks

1 Answer

Hi, I have a 2002 Buick Rendezvous and the high beam light will not come on on the Passenger's side headlight. The low beam works great and the high and low beams work great on the driver's side. We have...


Make sure the high beam realay under the hood fuse box is working. You can swap the hi beam relay with the horn relay to test. The hi beam filiament in the bulb can be open too.

Mar 24, 2017 | 2002 Buick Rendezvous

1 Answer

Passenger headlights only do not operate.


check the bulbs first and also the fuses theres a fuse for each side and for low and high beams, start there, good luck.

Feb 19, 2010 | 2002 Mitsubishi Eclipse Spyder

2 Answers

How do you aim headlights


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.

Aug 11, 2009 | 2004 Suzuki Forenza

2 Answers

Hi, could you please advice me how i can adjust the headlights for 92' toyota corolla? Thank you


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.

Jul 10, 2009 | 1992 Toyota Corolla

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