Question about 2003 Buick LeSabre

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Need to replace drivers side low beam light. I see two bolts than when removed should release lamp module. But, it is not feels like there is a third I'm not seeing. Is this the case? How ho I remove the module? Buick in Oregon

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The bulbs in your car are replace from the back side. They are sealed units. The bulb will come as low and high beam built in one bulb. Go to an auto parts store and get the bulb first so you can see what you are looking for, there is a ring that holds the bulbs in the assembly. The ring will turn about a quarter turn and unlocked the bulb will then pull out from the rear and you can replace it. Hope this helps you out. Roger

Posted on Feb 07, 2010

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Why do all lights work except low beam driver side head lamp?


Seems like if your other low beam is lit, there's something wrong with the new bulb. Make sure it's the exact type needed, and switch the working bulb from the pass. side to drivers side to check.

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Headlight low beam on my envoy 2006 not working


The headlamp driver module (HDM) is an electronic module that provides electrical power to the vehicle low beam headlamps. The HDM is controlled by a pulse width modulated (PWM) ground signal from the body control module (BCM). The BCM determines the desired lamp intensity using the ambient light sensor, multifunction switch and the park brake switch as inputs. In general, the HDM will operate in 1 of 3 modes:
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Reduced Intensity Mode: This mode is used by features that do not require or allow maximum low beam headlamp intensity such as daytime running lights (DRL) (nominal: 85% duty cycle).


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Full Intensity Mode: This mode is used by features that require full low beam headlamp intensity such as low beam headlamp operation in manual or auto modes (nominal: 100% duty cycle).


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Off Mode: This is the default mode of the system that will occur when none of the features described above are active. The BCM will deactivate its PWM output (0% duty cycle) during this mode.

The normal battery voltage input to the HDM must be between 6 and 16 volts DC to operate. Any deviation to these values could cause improper operation.
Major components of this system are the BCM, HDM, ambient light sensor, multifunction switch, park brake switch and low beam headlamps.
DTC B2575 Headlamp Control Circuit
When the body control module (BCM) senses a request for headlamp or daytime running lamp (DRL) illumination, the BCM sends a pulse width modulated (PWM) ground signal to the low beam headlamp driver module through the low beam headlamp driver module control circuit. The low beam headlamp driver module will illuminate the headlamps, adjusting the intensity based on the PWM signal received
You best bet is to take your vehicle to a ASE certified repair shop or the dealer >

Jan 15, 2016 | GMC Envoy Cars & Trucks

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I have a 1995 Ford Explorer Limited and the high beams work but the low beams and fog lights do not, please help....


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.

Nov 22, 2012 | Cars & Trucks

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Daytime running light module location 2001 impala


The daytime running lamps in your 2001 Chevrolet Impala are controlled by the Body Control Module (BCM) Here is a description of how the system works:

The ambient light sensor is a light-sensitive transistor that varies its voltage signal to the Body Control Module (BCM) in response to changes in the outside (ambient) light level. When the BCM receives this signal, the BCM turns ON either the DRL or the headlamp relay for auto headlamp operation. Any function or condition that turns ON the headlamps will cancel the DRL operation.
Thirty seconds after you start the ignition with the headlamp switch set in the OFF position, the DRL will perform one of two actions:

Illuminate the high beam headlights at a reduced intensity in daylight conditions
Illuminate the low beam headlights in low light conditions
The DRL/EXT lamps fuse in the top of the engine fuse block supplies battery positive voltage to both the DRL switch contacts and to the DRL relay coil. When the BCM energizes the DRL relay coil, current flows through the right high beam lamp, to the left hand high beam lamp, to the energized DRL relay switch contacts, to ground G101.
The high beam headlamps are now in series, and split the voltage so that the headlamps illuminate at halt intensity. The DRL operates when the ignition switch is in the RUN position, and the parking brake is not set or the transmission is not in park. When these conditions have been met and the ambient light sensor indicates daytime conditions, the DRL will illuminate.

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1 Answer

2001 grand caravan low beam light not working. i chang bulb already i check fuse already.


Hi Every single time I have had a failure of low beam in a headlight without failure of high beam, it has been because the lamp bulb or halogen lamp module has reached the end of its serviceable life, not because of any wiring problems. Low beam burns out first because it is on the most. If low beam is lost simultaneously in both headlights, I would check fuse first, then the headlight switch. If low beam is lost on one side only, it is almost always going to be due to the bulb or lamp module needing to be replaced. In that case, replace them in both headlights because the other one will be going kaput in short order, as well.Also if you already replaced the fuse and bulb check the headlight dimmer control switch.
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Mar 14, 2011 | 2001 Dodge Grand Caravan

1 Answer

How do i replace the low beam headlamp on a 2008 mercedes?


Under the hood, there are two round head lamp covers on each side. One for high beam and one for low beams. The low beam is the outer cover. Turn this cover counter clockwise and remove. This will expose the back of the bulb. There is a small clip holding the bulb into the headlight housing, but you must unplug the light before removing clip. Once you have unplugged the light, the small metal clip can now be undone. on the side opposite the hinge, push the clip in towards the casing and then to one side (which way to push depends on which light it is.) Then the clip will release. you can now remove the bulb. place new bulb in and make sure it securely fits into position. reinstall the clip and reconnect the power. check for propeer function of the lamp before replaceing the cover. Once you confirm lamp is working replace cover and you are done.

This is easiest to see on the passanger side light. The driver side is slightly more cramped.

Jan 05, 2011 | 2008 Mercedes-Benz Mercedes Benz C Class

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Low beam dosent work. bulb is good highbeam works cant find fuse for lights. its not underhood


Hi,
It has been because the lamp bulb or halogen lamp module has reached the end of its serviceable life, not because of any wiring problems. Low beam burns out first because it is on the most. If low beam is lost simultaneously in both headlights, I would check fuse first, then the headlight switch. If low beam is lost on one side only, it is almost always going to be due to the bulb or lamp module needing to be replaced. In that case, replace them in both headlights because the other one will be going kaput in short order, as well.
Most like the low beam filiment is bad but the high beam filiment is still good, try replacing bulb. If replacing bulb does not fix problem then you probably have voltage problems and should check the voltage reading and the plug.
OR
isolate the wire that comes from the headlight switch to the headlamp bulbs for low beam and check to see if there is a short in the wire. You can find this wire by using a test light turn on the key and get a good ground with the test light poke the wire and see if the test light illunimates with the headlight switch on.
check the wires, and check the fuse for your lowbeams. could of blown a fuse on your lows, but your highs will still work.

The fuse box is located in the engine compartment,on the driver's side. Has thumb-screw retained cover.
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How do you replace the drivers side low beam bulb on a 2004 Madza 6?


The driver's side low beam headlight is slightly easier to replace than the passenger side.
The owner's manual states the dealer must replace this bulb, but it can be done yourself if you are handy. The main problem is limited access due to the crowded engine compartment.
A flashlight and small mirror may be helpful, but no tools are needed. You need to purchase a replacement H1 55 watt halogen bulb.
The low beam light is located closest to the fender. First remove the cover of the fuse box to give you more room to work. It is located in front of the battery. In front of the fusebox and partially hidden under the fender, you will see a circular hatch.

It should be immediately behind the low beam headlight. Turn this hatch 1/8 of a turn counter clockwise (when you are looking at it from the rear). It may be a bit tight. Once you've turned it, it should come off when you pull it. Note the orientation so that you will be able to replace it when done. Inside, you will see a wire leading to the lamp. There is a clip on the fender-side of the wire that holds the lamp in place. Push in and toward the passenger side to release the clip (this takes a bit of effort). It will then swing upward and the lamp will be released.

Pull the lamp straight out of the housing. Note the orientation of the lamp in the housing so you know how to put back the new one. Remove the burnt lamp by pulling it off the plug and replace it with the new one. Be sure not to touch the new lamp with your bare fingers (latex gloves work well). Now reinstall the lamp in the housing, swing the clip back down until it locks and screw the circular hatch back on. Don't forget to put the fusebox cover back on!

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Fuse box diagram for 2002 ford taurus


The 1999 Fuse Box Diagram is as follows:

Column 1 (Top to Bottom)
Driver Window Relay
Interior Lamp Relay
Driver Unlock Relay
Battery Saver Relay
Hazard Lamps (15A)
Diagnos (10A)
Cigar (20A)
Front Wipers (30A)
Air Bag (5A)
ABS (10A)
Shift Interlock (5A)
Blank

Column 2 (Top to Bottom)
High Beams (15A)
Deck Lid Release (15A)
Mirrors/Antenna (5A)
Head Lamp Illumenation (5A)
Light Out Module (5A)
EEC Ignition Coil (20A)
Brake Lamps/ A/C (15A)
Instrument Illumenation (5A)

Column 3 (Top to Bottom)
Accessorty Delay Relay
Rear Defrost Relay
Tail Lamps (5A)
Battery Saver (10A)
Wiper and Vaps (5A)
Rear Wiper (15A)
Turn Signal (10A)
Air bag/ Alt LPS (A)
Starter Relay (10A)
Left Low Beams (10A)

Column 4 (Top to Bottom)
Switch Illumenation (5A)
Def Sw Illumenation (10A)
Stop Lamps (15A)
Radio (5A)
Radio Memory (5A)
Right Hand Power Locks (20A)
Gauges/ Warning Lamps (5A)
Radio Mute (5A)
Right Low Beam (10A)

Hope this helps.

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1 Answer

Low Beam Headlamp out.


Remove the top radiator shroud (plastic clips), then 3 10mm bolts, 2 up in plain sight, third is way down on the bottom on the side of light housing towards the center of the grill. When tese are out pull the whole assembly forward, there is a pressure fit pin on the far outside of the light that makes it feel like another bolt, butwork it out. after doing above you will see aplastic cover over the sockets, pull it loose at the top and it lifts free. The socket is less than a 1/4 turn ccw to remove. Uses 9006 bulb. Reinstallis opposite of above.

Sep 03, 2008 | 2001 Cadillac DeVille

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