4 Different Lights Out - Chevy Malibu Forum: Chevrolet Malibu Forums
 
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post #1 of 8 (permalink) Old 01-09-2017, 09:59 PM Thread Starter
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Question 4 Different Lights Out

While purchasing the car it was noted that the right brake light and the right back up light were not working and we assumed it was just a couple of bad bulbs. I changed all 4 bulbs on that side only to still have the problem. Later in the night I realized the trunk light wasn't working and once again a new bulb made no difference. Then I was pulled over because the license plate light wasn't working but by then I knew enough to say to the cop that it must be a bad ground or something because new bulbs aren't working.

I'm curious if anyone has had this issue. I would've assumed a bad fuse if this wasn't affecting only one side. I haven't taken the time to trace the wires but I'm hoping it's a simple fix. Makes me wonder if this is related to why the right rear speaker doesn't want to work either.
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post #2 of 8 (permalink) Old 01-10-2017, 03:24 AM
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Re: 4 Different Lights Out

If a lot of stuff on one side is not working there might be damage to the harness somewhere, either from critters gnawing on it or external damage or from rubbing through on a hard corner.

If your taillights use the circuit board, that is a common point of failure for taillights.


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'11 LTZ, born Aug 2010, Fairfax, KS

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post #3 of 8 (permalink) Old 01-24-2017, 01:00 AM Thread Starter
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Re: 4 Different Lights Out

Apparently there are just a lot of different little things on the car that have been going bad. Seems like the trunk switch is the culprit because it seems to work intermittently but I have been working a lot in that area installing a sound system and the license plate bulb was blown. As for the original 2 lights they are harder to test when I'm alone and I'm almost always alone but if it is or even if it isn't the age old problem of overheating sockets I'll wire up some relays and maybe ceramic sockets from the side that does work. They looked perfectly fine last time but maybe I didn't look close enough. I'm thinking of adding relays anyway like what should be done for the headlights already. I notice how much brighter the lights become when I physically turn the switch versus them already on because they are daytime running lights and the switch doesn't need to handle the entire load.

Some of the other bad parts of the car are instead causing more lights to illuminate but those are warning lights for the brake and ABS probably due to faulty sensors or the car begging to have its brake fluid finally flushed for the first time since it left the factory. It's a low mileage car but the lady pretty much only paid for oil changes at places where they did a little bit of cleaning and vacuuming over the years. Before I can reinstall the rear deck after reupholstering it I must scrape or find a way to clean the rear deck lining that evaporated from the heat of direct sunlight and stuck to the glass like a tan colored window frosting. With as filthy as the undersides were I couldn't even feel comfortable with laying down after removing the seats until I had vacuumed as much as I could at the car wash. To top things off even after half a roll of paper towels and half a bottle of glass cleaner I still have been unable to get the interior glass free from a film that allows glare to be extra annoying and in the beginning very dangerous at night.
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post #4 of 8 (permalink) Old 01-24-2017, 03:24 AM
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Re: 4 Different Lights Out

I re-read this thread. Can you include the model year, engine, and trim level on your next post, please? Alternately, you can update your sig and/or avatar to include it automatically on every post.

DRLs use reduced voltage to operate the headlights. Turning them from DRL to ON will and should yield slightly brighter and/or whiter lighting. All 3 of my Gen7 models have done this. Gen7 uses PWM to changed the voltage. Not sure what yours uses.

That's an odd issue with the rear glass being "tinted" like that. I hope you find a way to clean it without damaging the defroster grid or the radio antenna, if it's part of your window like the Gen7 is.

We always ask for pics, so if ya have any . . .


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post #5 of 8 (permalink) Old 01-24-2017, 10:09 PM Thread Starter
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Re: 4 Different Lights Out

One more post away before I can post pics!

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Originally Posted by DrivenDaily View Post
I re-read this thread. Can you include the model year, engine, and trim level on your next post, please? Alternately, you can update your sig and/or avatar to include it automatically on every post.

DRLs use reduced voltage to operate the headlights. Turning them from DRL to ON will and should yield slightly brighter and/or whiter lighting. All 3 of my Gen7 models have done this. Gen7 uses PWM to changed the voltage. Not sure what yours uses.

That's an odd issue with the rear glass being "tinted" like that. I hope you find a way to clean it without damaging the defroster grid or the radio antenna, if it's part of your window like the Gen7 is.

We always ask for pics, so if ya have any . . .
I have a 99 LS with the V6.

Good to know about the headlight switch but I'm not thrilled with DRL's and may wire a switch to those relays to turn the lights completely off during the day and when I want to be sneaky at night.

As for the rear glass I managed to clean a square inch with a little cleaner and elbow grease but that would wear myself out before I could finish.
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post #6 of 8 (permalink) Old 01-25-2017, 03:42 AM
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Re: 4 Different Lights Out

Steam. No, not the downloadable app but real steam. There are a number of brands out there but none of them are what I'd call cheap enough to buy unless you're gonna use 'em for more than the rear glass.

In my Gen7 there is a separate wire from the BCM to the energize the low beams as DRLs. There is also a separate fuse and relay. Disabling them is as simple as pulling a fuse or relay, or cutting the wire. Yours may be as easy, too.


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Traded: '09 2LT Black Granite Metallic V6 / A6 at 20,058 miles
Lost: '11 LTZ RJT V6 / A6 in flood at 44K miles

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post #7 of 8 (permalink) Old 01-28-2017, 09:33 PM Thread Starter
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Re: 4 Different Lights Out

Would this include autolamps because when it's dark I never ever have to flip the headlight switch? When I do that's when I notice the lights getting brighter.
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post #8 of 8 (permalink) Old 01-29-2017, 04:39 AM
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Re: 4 Different Lights Out

Yes.

DRLs that use the low beams should be slightly dimmer, which means they appear a little more amber, and will brighten slightly when full power is supplied by either the automatic headlamp function or turning them on manually.

Some DRLs use the high beams at a more-reduced power. Turning on the low beams switches from low-power high beams to full-power low beams and will be markedly more noticeable than above.


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