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Member's Technical crew
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Discussion Starter #1
This was the first year with low beam DRLS right? Anyway, really messed up lights going on! awhile ago I swapped in a 07 BCM, into my 04 rado, in hopes of gaining TPMS clusters, without a board swap.

Hasn't been easy! I was keeping it somewhat under wraps, but I cant get the lights to work, right. So I gave up. Just on a road trip for work, tiring to get some research done, so when I get caught up building harnesses I can play again...hehe

I finally got he Air bag light to go out, and the remotes programed, and the vats programmed, and I'm able to enter TPMS programming mode. But the stinking headlamps

I was using a 2007 Canadian automatic BCM. Mines manual, maybe that matters?

-Key on, at night all lights come on, low beams, tails, upper front corner lamps, and they cannot be turned off headlamp button turned, to the left, e-brake set or not? This is shitty because your stuck having all the lights on at night?

-daytime the DRls are allways on, cannot be turned of weather you set the ebrake, or turn to the left to defeat it. I need to wire up the DRL relay wire from the BCM, to the fuse box, and add a realy for DRLS, then choose upper or lower DRLs. But for now I was just using a multi meter, to see weather the bcm was grounding the DRL relay or not.


If I reprogram my PCM with a auto, then the lights worked like this;

at night key on, all the lights are on, upper markers, tails, but the low beams, are off?? WTF?? I could manually turn the low beams on by turning the switch all the way to the right. Turning to the left does nothing, and ebrake set or not, makes no odds. The DRL wire isn't grounded. Ever??

At daylight, key on no lights come on, at all, DRLS never work.

I'm thinking I also need a auto trans, or at least the PNP switch wired up. Or to try a manual trans 07 bcm with auotlocks.

The 04-06 BCMs seemed a lot less pissy about having a auto or manual, they didn't really seem to care! Only trouble I had was, loosing the auto lock feature, going from a auto to manual, the bcm never locks the doors at speeds above 15kph
 

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Discussion Starter #3
I have done several 07 PCM/BCM swaps in early 355's before.
Your problem is you need an 07/08 fuse box or add the DRL relay as you stated.
Why do you usually swap in the newer BCMS? For TPMS, as well? Why so many?

Yeah but why cant I turn off the auto headlights? Even if its dark key on, cant you turn the switch to the left, and kill the auto lights, leaving only the DRLS on? And US trucks no lights at all?

And I'd like to only illuminate, the outer front marker lamps, not all the low beams or complete upper lights.

Looks like the 04-05 BCM turns on the front turn signals, and leaves em on for drls?

I cant use the DRL relay wire to replicate that very easily. If I fuse tap the front turn signals, then wire them to a relay, the turn signals wont flash?
 

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The reason you cant turn them off is because its programmed that way with Canadian trucks for the law.

If you want to turn off your headlights the truck has to be in park. This is how my truck works.
 

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Is the BCM you have from an automatic? Could be the auto BCM and your truck being a standard are conflicting. Like Canada2005 said the truck has to be in park to shut off the lights. Your truck being a standard doesn't have park. There may be a way to send a signal from your ebrake to the park input on the BCM. Try looking into the differences between the schematics for auto and standard.
 

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Discussion Starter #6
OK I flashed in a 07 manual CDN file, and now I can defeat the DRLS by turning the headlight switch to the left..at least I think?

But the tail lights and marker lights stay on at night? Is that right? With my 04 US truck I could kill all the light by turning the light switch to the left? I want this again!!!

On a side note me auto locks work good, with a manual bcm tune.
 

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OK I flashed in a 07 manual CDN file, and now I can defeat the DRLS by turning the headlight switch to the left..at least I think?

But the tail lights and marker lights stay on at night? Is that right? With my 04 US truck I could kill all the light by turning the light switch to the left? I want this again!!!

On a side note me auto locks work good, with a manual bcm tune.
Have you checked the light sensor on the dash? Do you know what truck the BCM came out of, auto or std?
 

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Discussion Starter #8
Have you checked the light sensor on the dash? Do you know what truck the BCM came out of, auto or std?
Well in the day time, the lights go out, at night they don't is that right?

Bcm is from a auto, but it's flashed with a manual vin now, I can turn the parking lamps and headlamps up front off with the manual vin, couldn't with the auto, but at night all the lights in the back, and marker drls stay on, is that normal for a cdn Colorado 2007?
 

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Well in the day time, the lights go out, at night they don't is that right?

Bcm is from a auto, but it's flashed with a manual vin now, I can turn the parking lamps and headlamps up front off with the manual vin, couldn't with the auto, but at night all the lights in the back, and marker drls stay on, is that normal for a cdn Colorado 2007?
In the day the drl's should be on. With your truck being an '04 and your bcm being from '07, which drl's come on? headlights or signals?
 

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Discussion Starter #10
In the day the drl's should be on. With your truck being an '04 and your bcm being from '07, which drl's come on? headlights or signals?
I haven't tried it yet, my guess is no lights at all, Until I hook up the extra wire (that the 07 has) from the BCM, to the DRL relay. In which case I will likely tie them into the parking lamps.
 

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I haven't tried it yet, my guess is no lights at all, Until I hook up the extra wire (that the 07 has) from the BCM, to the DRL relay. In which case I will likely tie them into the parking lamps.
I'm not 100% sure but I don't think the US trucks are required to have DRL's where as Canadian trucks are. To get the lights to shut off properly you might need to fool the automatic BCM into thinking it's an auto. Try getting the signal from your park brake to match up to the park input on the BCM. This should fool your BCM into thinking the truck is in park and send the proper signal to your lights to shut all of them down when your parking brake is on.
 

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Discussion Starter #12
I'm not 100% sure but I don't think the US trucks are required to have DRL's where as Canadian trucks are. To get the lights to shut off properly you might need to fool the automatic BCM into thinking it's an auto. Try getting the signal from your park brake to match up to the park input on the BCM. This should fool your BCM into thinking the truck is in park and send the proper signal to your lights to shut all of them down when your parking brake is on.
Yes your right US doesn't require DRLs. Canada does.

And Ive flashed in a CDN Vin with manual trans, and ounce I add the 2007 and up DRL wire, my truck will basically be a 2007 Canadian manual transmission truck.

its been so long since I drove a Canadian Colorado I'd like to know if the lights can be turned of at night, especially on a 2007 and up truck. I might be chasing something that's not even a problem?

Maybe that's how it works on a 07 Colorado from Canada. At night if you turn the switch to the left, does it turn off all the lights? Or just the headlights?

My 04 US truck at night you turn the switch to the left everything went dark, no licence plate lights, no tail lights, no parking lights, no headlights, no drls, no cluster lights, pitched dark..its like stealth mode...lol
 

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I've got a 2004 automatic and if I turn my switch left when in park it goes completely dark. When I turn my switch to the left when in gear R. N. D. Etc, nothing happens the lights stay on.
 

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Discussion Starter #14
I Got my 2007 BCM working, I hacked it to get the TPMS light to go out, without TPMS sensors, but in hacking it I accidently changed how the lights work, I can defeat the lights turn off all the lights interior dash lights as well, by turning it to the left.

The DRL wire that the late 06 and up trucks have was added, and did work before I hacked the BCM, now it doesn't work. I tried wiring them into the relay off the e-brake but the relay was buzzing and backfeeding, need to further investigate!

I also had to wire in a battery module to get rid of the battery light, but then the pesky serv brake message came up, so I had to wire it to the alt. as well.

I hacked the 04 remote info into the BCM, stock fob works, hacked the SDM serial number from the 04 into the 07 BCM as well.

Now my 2007 cluster with TPMS, works!

Its a 120 mph or 200 kpa metric cluster. Really hard to find
 
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