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Hello, it’s the car grl again. I pretty sure almost every modern car get the same interior wiring harnesses no mater what trim level it is. Ther are exceptions beaten a gasser and hybrid for example. I’m not positive on this since this is my first modern Chevrolet. I know f**^ been doing it for decades. Why make a custom harness for every car??? It just would ease the cost of ther factory work wich would cause the cost of the car was o go up for the consumer. The only difference in trim level is how much is connected to the harness. My reasoning for this is because in my former F*** low trim level vehicles, I was able to pick up the parts parts and simply snap them on their sockets the the factory just capped off for protection of the harness.

So my question is if I pickup a set of LED Accent/Driving/Fog lights, would Chevrolet Harness have the hookup ready to pop in??? Is the headlight switch different??? Worst case I can wire them up into the run circuit via a relay. So any time the car is running they would turn on.

Thanks in Advance:
Alice
 

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2011 Malibu LTZ 3.6L V6 Red Jewel Tintcoat
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In the Gen7 is when we started noticing that the harnesses were specific to certain trim levels. In the early Gen7 models, the wiring for the fog lights seemed to be there even if they weren't in the car, which was stock for the LTZ only. Later on, folks who wanted to add fog lights found no such wiring like the early versions had.

I'd hazard a guess that your Gen9 suffers from the same limitation, but I couldn't tell ya.

The biggest thing to be concerned about is whether the BCM directly operates the device. If so, even if the factory wiring is there, you'll have to go to a dealer and have the BCM re-flashed to add/enable that feature, and since your VIN's record will not contain that item, they'd have to "lie" to the BCM with a different VIN to possibly get it to accept the update. Recently, WOT revealed that the BCMs are locked out for tuners, so it's very possible that GM has locked them from any modifications without their implicit approval.

The day could come when aftermarket BCMs are available that are "open source", meaning that they'd be unlocked and available for the user to modify as they choose. Can you imagine being able to do what you want with the car you bought? Why, that's un-American! :eek:

[/sarcasm]
 

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Discussion Starter #3
In the Gen7 is when we started noticing that the harnesses were specific to certain trim levels. In the early Gen7 models, the wiring for the fog lights seemed to be there even if they weren't in the car, which was stock for the LTZ only. Later on, folks who wanted to add fog lights found no such wiring like the early versions had.

I'd hazard a guess that your Gen9 suffers from the same limitation, but I couldn't tell ya.

The biggest thing to be concerned about is whether the BCM directly operates the device. If so, even if the factory wiring is there, you'll have to go to a dealer and have the BCM re-flashed to add/enable that feature, and since your VIN's record will not contain that item, they'd have to "lie" to the BCM with a different VIN to possibly get it to accept the update. Recently, WOT revealed that the BCMs are locked out for tuners, so it's very possible that GM has locked them from any modifications without their implicit approval.

The day could come when aftermarket BCMs are available that are "open source", meaning that they'd be unlocked and available for the user to modify as they choose. Can you imagine being able to do what you want with the car you bought? Why, that's un-American! <img src="http://www.chevymalibuforum.com/forums/images/smilies/eek.gif" border="0" alt="" title="EEK!" class="inlineimg" />

[/sarcasm]
What a shame Chevrolet has done that. But as the BMC issue, I know ram trucks did it when the 2016 came out for sure maybe earlier. But there are tunner companies that made a extra Accessorie that let u flash a tune as loong ass Accessorie cable was connected. But u had to take the cable off before starting the motor. Maybe in a few years someone will come out with something like that for the 9th gen malibu too. Be as of that turbo has a lot potential by adding a bigger turbo or intercooler. I wouldn’t mess with the motor till I can’t get extended warranty on it anyways. Currently under factory warranty and just before that expires we plan to refinance the car and add a extended warranty. Then and only then would I do non cosmetic upgrades. Till then it’s just cosmetic tings like the illuminated door sill plates: https://accessories.chevrolet.com/product/2018/Chevrolet/Malibu/illuminated-front-door-sill-plates-in-dark-atmosphere-with-malibu-script-84201726?categoryId=12001, or the 19x8.5-Inch Aluminum 5-Split-Spoke Wheel in Gloss Black: https://accessories.chevrolet.com/product/2018/Chevrolet/Malibu/19x85-inch-aluminum-5-split-spoke-wheel-in-gloss-black-84022684?categoryId=12001.

As for the harness problem I can get the lights and hard wire them with a relay and the trigger wire connected to a run circuit so that they only come on while the car is running. Can’t turn off manually but give extra level of being seam while driving.
 

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Hello, it’s the car grl again. I pretty sure almost every modern car get the same interior wiring harnesses no mater what trim level it is. Ther are exceptions beaten a gasser and hybrid for example. I’m not positive on this since this is my first modern Chevrolet. I know f*^ been doing it for decades. Why make a custom harness for every car??? It just would ease the cost of ther factory work wich would cause the cost of the car was o go up for the consumer. The only difference in trim level is how much is connected to the harness. My reasoning for this is because in my former F** low trim level vehicles, I was able to pick up the parts parts and simply snap them on their sockets the the factory just capped off for protection of the harness.

So my question is if I pickup a set of LED Accent/Driving/Fog lights, would Chevrolet Harness have the hookup ready to pop in??? Is the headlight switch different??? Worst case I can wire them up into the run circuit via a relay. So any time the car is running they would turn on.

Thanks in Advance:
Alice
You may want to check out this kit

16-18 Malibu LED DRL Kit
 
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