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Remote Tailgate Release

beavo451
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Marv88 Enthusiast

Marv88

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Yep, that was the thread I was referring too. I could never get his posted solution about using the brake light to trigger another relay to work correctly.

 

I understood the general premise, but on my TR-7 it would appear that the timer resets with each pulse that it sees. So instead of the first pulse triggering the timer (I have mine set for 3 seconds) and then waiting for three more pulses within three seconds, it just checks to see if it receives another pulse within that three seconds. So essentially, if you wait to the end of the timer, a setting of four pulses and three seconds could trigger the module in as long as nine seconds (Pulse... 3 seconds... pulse... 3 seconds...pulse... 3 seconds... pulse).

 

So even though the brake light was breaking the trigger pulse cycle, it would open every time using the blinker/hazards no matter what settings I used on the TR-7. (Yeah, there are random bits of left over wire inside my tailgate now)

 

My solution is also electrically simpler and not subject to that weird double pulse counting thing (IE the TR-7 will detect 6 pulses when pressing unlock three times). The relay does not activate until it detects a 12 volt pulse versus the detection range of the TR-7 starting as low as something like 0.65volts. So when the relay detects 12 volts (the real pulse, not just the system standby/wakeup/whatever it is) it sends a pulse to the TR-7. The original relay as described is just for sending power to the actuators.

 

Thanks again and I am not even going to pretend I understand all of that so I'm just going to hook the second relay up as you show in your diagram!

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beavo451
beavo451

So, I really liked the feature on the Ford F-150 where you can release the tailgate using the key fob. I wanted to do it on my 2017 Silverado. I found a past topic on this forum that mentioned it, but

JCV461
JCV461

That's awesome. To bad I stink at electrical work otherwise I'd definitely look to do this.   Sent from my SM-G955U using Tapatalk

Loco-diablo
Loco-diablo

Ha ha!! Me too! I'd definitely blow my warranty out of the water if I attempted this and fried my electrical system. Very cool feature though.     Sent from my iPhone using Tapatalk

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jar6223 New Member

jar6223

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You also have the remove tailgate lock on your 2017?

Would there be any issues having that and trying to add this?

Would you have to unlock the tailgate first and then press the button for letting down the tailgate?

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NoLand Enthusiast

NoLand

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So I was thinking about shaving the tailgate, but I've got a folding tonneau cover so I was in need of a solution like this.

 

Do we know if there is any kind of programming through the BCM that could enable the use of a tahoe/suburban key fob to trigger the tailgate release?

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Marv88 Enthusiast

Marv88

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So I was thinking about shaving the tailgate, but I've got a folding tonneau cover so I was in need of a solution like this.

 

Do we know if there is any kind of programming through the BCM that could enable the use of a tahoe/suburban key fob to trigger the tailgate release?

I asked my service advisor about that when I first did mine and he said it would not be possible. Then again guys on this forum sometimes know more than the service department so maybe someone can figure it out.

 

BTW, in the future I plan to replace my tailgate handle with a custom made plate and at that time I am just going to install a couple of momentary switches inside the bed since the 1 piece hard cover I put on after doings this has to be lifted before the tailgate can open making the remote opening kind of pointless in my case.

 

Edit: I'm not familiar with folding covers but I'm guessing you need to open the tailgate to open the cover so switches inside the bed sure won't work for you!

Edited by Marv88
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NoLand Enthusiast

NoLand

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Edit: I'm not familiar with folding covers but I'm guessing you need to open the tailgate to open the cover so switches inside the bed sure won't work for you!

Yeah, that's right; you have to open the tailgate before you can open the tonneau. I'll probably do some more research. There's a guy on here that does a lot of BCM programming and I may hit him up to see what he says.

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Marv88 Enthusiast

Marv88

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Yeah, that's right; you have to open the tailgate before you can open the tonneau. I'll probably do some more research. There's a guy on here that does a lot of BCM programming and I may hit him up to see what he says.

If it's the same guy I tried for my radio upgrades (White Automotive and Media Services) he has never answered my messages even though I always sent them on the weekend as instructed on his site so hopefully you have better luck.

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NoLand Enthusiast

NoLand

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If it's the same guy I tried for my radio upgrades (White Automotive and Media Services) he has never answered my messages even though I always sent them on the weekend as instructed on his site so hopefully you have better luck.

Welp, that's unfortunate. That's exactly who I was thinking.
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Marv88 Enthusiast

Marv88

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why wouldn't you want to use your factory fob to open the tailgate?

 

My guess is the same reason I looked into it which is that the Tahoe/Suburban fob has a separate button for the tailgate. When you do this with the Silverado fob you have to hit the unlock button once to unlock and then a user set number of times additional to drop the tailgate. Not too much hassle IMO but it would be nice to just press/hold one button one time.

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bndawgs Senior Enthusiast

bndawgs

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My guess is the same reason I looked into it which is that the Tahoe/Suburban fob has a separate button for the tailgate. When you do this with the Silverado fob you have to hit the unlock button once to unlock and then a user set number of times additional to drop the tailgate. Not too much hassle IMO but it would be nice to just press/hold one button one time.

ahhh, gotcha. yeah, i can see where that would be nice to have

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Marv88 Enthusiast

Marv88

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Y'all could always buy one of those wireless triggers and use that as he trigger.

I looked into that as well but could not find one that could be programmed to the factory fob and didn't want to carry an extra one just for the tailgate. Are you aware of any that could be programmed like that?

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