Question about 2005 Pontiac Sunfire
When I start my car, and headlights are off, the lights flicker repeatedly on and off until I actually turn my headlights on. Once the headlights are on, the flickering stops. What do I do?
Sounds like a headlight relay breaking up inside.. I have never heard of them failing this way but there is a first for everything.. Possibly the headlight switch is getting old and the contacts are moving around in the switch. find the relay and listen to it to see if it is making clicking noises. if it is something is causing this possible the switch going bad.
Posted on May 13, 2014
You have a problem with the daytime running lights system. It could be the sensor, relay or body control module. The sensor is on the top of the dash, there is a panel up there that pops of to access it. (be careful because they do break easily). The relay is in the under hood fuse panel. The BCM is under the dash. It could be one of these or just a bad connection at the BCM,relay, or sensor. These are the reason it flashes. When you turn the lights on manually, it bypasses all of this. Fixing this, you need a volt meter and wiring diagrams.
Posted on May 12, 2014
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Posted on Jan 02, 2017
Definately an electrical problem....first off, check the battery and alternator connections to make sure they are tight. The problem has to be before the fuse box because the headlights and interior lights are on different fuses. It sounds to me like a loose wire, corroded battery terminals, or an alternator that is going bad. An alternator is a relatively easy and cheap fix. They cost about $100 and require removing a few wires, 3 bolts, and the serpentine belt.
Posted on Jul 27, 2008
I have run into a few of these and what I found was water getting into the wires that go to these headlights.The harness is just below the battery area.It will be easier to get to from the bottom of the vehicle.You will have to remove the plastic cover from the harness and the electrical tape.Find the dark blue and the orange wires.The dark blue is for the drivers side and the orange is for the passengers side.There should be 2 of each.Look real closely and see if you see a spot where the wires are slightly swelled up.These wires are only 18 gauge so it is not easy finding the bad spot.One thing you can try is pulling on the wires a little and sometimes they will separate where the bad spot is.Hope this helps.Good luck.
Posted on Dec 16, 2009
COULD BE FAULTY DRL HEAD LIGHT RELAYS OR FAULTY DIMMER SWITCH.SINCE HEADLIGHTS TURN ON AUTOMATIC.TRY USING MANUAL HEAD LIGHT SWITCH ON TURN SIGNAL SWITCH LEVER SEE IF HEADLIGHTS STAY ON IF LIGHTS STAYS ON YOU HAVE FAULTY DRL HEADLIGHT RELAY.IF LIGHTS STILL FLICKER OFF.YOU HAVE BAD DIMMER SWITCH.
Posted on Jun 09, 2011
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