Passenger side Headlight going out periodically. High beams work. --would twist the socket inside the headlamp to make it go back on. This went on for months. Then, passenger side headlight went out. Saw broken filament. Replaced filament, lit while I was maneuvering bulb into headlamp, then went out. No amount of twisting or reinserting filament will solve problem. Is socket bad? Just on low beam part? ---There is no damage to wire harness.

There could be several reasons why the driver side headlight on your 2007 Pontiac G6 is not working. Some possible causes include a blown headlight bulb, a faulty headlight relay, or a problem with the headlight wiring. It's also possible that the issue is related to the turn signal, as you mentioned that it was staying on. I would recommend checking the headlight bulb first. If it is blown, replace it with a new one. If the bulb is fine, the issue may be with the headlight relay or wiring. You can also check the turn signal switch or the multifunction switch, which controls the turn signals and headlight. It may be possible that the switch is defective or malfunctioning. It would be best to get the vehicle inspected by a professional mechanic to determine the cause of the problem and make the necessary repairs.

The usual cause is a bad ground.
Check the ground with a test lamp.

Have you checked the relay in the circuit. You really need a schematic of the wiring diagram. Electrical can be tricky without the wiring diagram.

Hello there,
For you to be able to take off the assembly of the headlight on your car, please follow the steps below:
Ensure that the headlight switch (on the driver side of the Regal's passenger cabin) is in the off position.
Release the hood latch and open the hood.
Approach the passenger-side headlamp assembly. (Although on your left, this is the right-side lens assembly when sitting inside the vehicle.)
Locate the two white retaining brackets on the top rear edge of the assembly.
Lift the tabs straight upward about an inch to an inch and a half.
Grab the assembly from the sides of the front edge (being careful of any broken lens pieces; although the lens is made of plastic, you can still get cut by jagged pieces).
Firmly pull the assembly outward, away from the front of the Regal. Wiggle the assembly slightly to unseat the headlamp assembly alignment guide pins from their anchors.
Pull the assembly out only far enough to access the wire harness connections of the low-beam headlight, the high-beam headlight and the integrated parking/directional light.
Twist the retaining collar of the low-beam lamp (the outside lamp, toward the fender) a quarter-turn counterclockwise to remove the light from the headlamp assembly while it is still attached to the wire harness. Be careful not to contact the halogen bulbs with your bare hands, or you can damage the bulbs.
Twist the retaining collar of the high-beam headlight (the inner headlight, closer to the grill) in the same manner as you did the low-beam lamp to remove the high-beam bulb and harness from the headlamp assembly.
Twist the socket of the last remaining integrated parking/directional bulb and wire harness assembly a quarter-turn counterclockwise to remove it from the headlight assembly.
Discard the assembly and replace it with the new headlamp assembly by following the steps above in reverse order. Make sure to align the tabs of the retaining collar and parking/directional lamp socket with the mating notches on the new headlamp assembly before turning them all clockwise a quarter-turn to lock them in place.
All the best Elect_Comp

Both your low beam and your high beam is protected by the same fuse, so it makes sense that the fuse is OK if the high beam is working on the passenger side. There are 3 fuses for the headlamps. Fuse #13 in the Battery Junction Box (20 Amp). If this fuse is blown, the headlamp relay will not have any power and neither high nor low beam on either side will work (you will have no headlamps at all) Then there is Fuses #2 and #3 (15 Amp) in the Battery Junction Box. #2 goes to the left low and high beam and #3 goes to the right low and high beam.
The headlamp switch uses a SINGLE CIRCUIT to control BOTH sides at the same time, so if one side works, the switch cannot be the problem. The headlamp relay provides power for fuses #2 and #3 and we already ascertained that these fuses must have power since we have working lights on both sides, so the relay cannot be the problem. A replacement bulb has already been tried, so that pretty much leaves us with a bad lamp socket. (Most likely cause) or a bad connection at splice #S122, which is located in the main wiring harness near the breakout for the left headlamp. (RED/BLACK wire)

You can replace just the bulb. There is a cover that clips onto the back panel of the headlamp. Take that cover off and pull out the socket that the bulb twists into. Then you can replace just the bulb itself.

For Audi A4 the fuse box is located on the left side of dashboard behind a plastic cover (for left hand steering wheel vehicle). On inner face of the plastic cover you will find the fuse diagram.
First fuse on first row from left upper corner is Fuse Nr.20 = F20 (15A) - RH headlamp low beam, headlamp adjustment.
First fuse on second row from left upper corner is Fuse Nr.21 = F21 (15A) - LH headlamp low beam, headlamp adjustment.

high beam or low beam? or both of them on one side.

• One low beam headlamp is inoperative

• Central junction box (CJB) fuse 23 (10A) (RH headlamp).
• CJB fuse 25 (10A) (LH headlamp).
• Circuitry.
• CJB.

• Go To Pinpoint Test C .

• One high beam headlamp is inoperative

• Circuitry.
• Headlamp assembly.

• Go To Pinpoint Test D .

• The high and low beam headlamp is inoperative on one side

• Circuitry.

• REPAIR ground circuit 57 (BK).

• Headlamp switch
• Multifunction switch
• Vehicle Security Module

• Central junction box (CJB) fuse(s):
  • 17 (15A)
  • 23 (10A)
  • 25 (10A)
  • 35 (20A)
  • 40 (20A)
• Circuitry
• Headlamp bulbs
• Daytime running lamp (DRL) relay

Open the hood, and using a 7mm socket remove the long headlamp jackscrew 2nd from left. Grasp the headlight assembly on the upper inboard and lower outboard corners and wiggle and pull very firmly outward to disengage the 3 ball stud alignment posts from their sockets (be cautious of the sharp edges of the grille and fender areas surrounding the headlamp).
There is a bulb that plugs into a socket dirctly behind the headlight. In order to access it you must lift the hood. Next, you will have to remove the plastic ring that holds the socket in the rear of the headlight housing.
Twist the ring CCW (if you are facing the front of the vehicle)until it becomes loose and pull the socket and bulb through the hole. Then using a small flat tipped screwdriver lift out the little tab that holds the lightbulb on the socket and pull the bulb straight out from the socket. {Note: Pay Close Attention to the direction the plastic ring came out from, it is a pain to get back on if you don't. It will only go on one way...to hold the socket in place}

Pull upward on black cover above headlamp assy. (marked pull here for headlamp service) you will then see on the front side a large bolt above the lamp assembly that holds it to the front of the car. it is a 10MM socket you will then need to remove a similar bolt on the top and bottom on the center front of the car where the assembly bolts up to the sheet metal. on the corner near the cornering lamp is a star shaped head bolt. (looks like star of david) you will need another small metric socket to remove this. this will free up the cornering lamp from the headlamp assembly. gently pull forward and away from headlamp assembly. remove both light pig tails by gently twisting on pigtails. you will then see 2 nuts which are also 10mm remove these and gently pull forward on entire headlamp assembly. you will need needle nose pliers to compress the head of plastic retaining tabs on headlight and signal light pig tails where they are held into the headlamp assembly. gently twist hi-low beam sockets free of the headlamp assembly then do like wise with the signal lamps. to install reverse procedure as above. note: the side with the cornering lamp has a tab that must fit back into tab-hole in front sheet metal of the front fender