Hardwired Lockers with OEM Knob

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Re: Hardwired Lockers with OEM Knob

Post by BoldAdventure » Wed Apr 18, 2018 10:40 am

Retired BLM Rig wrote:
Wed Apr 18, 2018 9:15 am
Here's what another member said about the sway bar disconnect on another thread, however he was talking about a 3rd gen. He says that it's a motor not a solenoid, which makes sense because when I operate my sway bar it sounds more like a motor spinning than a solenoid clicking.
I purchased a smart bar off ebay from a 2008 and it's identical. Even plugged straight into my harness. So they've never made any physical changes to the smart bar in years. FYI.

----

Motor, solenoid, whatever. The EVO thing seems to work with just a spring and a bolt that pushes against whatever it is the smartbar part in my picture pushes against. That seems to disconnect the bar. I didn't spend a bunch of time looking in there to figure out the mechanics. That's why I called it a plunger, that thing must move outwards.

¯\_(ツ)_/¯
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Re: Hardwired Lockers with OEM Knob

Post by Reloaderguy » Wed Apr 18, 2018 12:25 pm

Retired BLM Rig wrote:
Wed Apr 18, 2018 10:24 am
I'll leave this here in case someone else in the future wants to hardwire their lockers from the SmartBar connector.


154963830000.GIF
Can you identify what all of the pins are for?
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Re: Hardwired Lockers with OEM Knob

Post by BoldAdventure » Wed Apr 18, 2018 12:40 pm

Reloaderguy wrote:
Wed Apr 18, 2018 12:25 pm
Can you identify what all of the pins are for?
Here you go: http://connectors.dcctools.com/details.htm?id=163539

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Re: Hardwired Lockers with OEM Knob

Post by Reloaderguy » Wed Apr 18, 2018 2:06 pm

Does the Smartbar circuit board contain the transfer case position and speed limiting logic? If yes, can anyone identify the circuit path on the board?
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Re: Hardwired Lockers with OEM Knob

Post by Retired BLM Rig » Thu Apr 19, 2018 4:47 pm

Reloaderguy wrote:
Wed Apr 18, 2018 2:06 pm
Does the Smartbar circuit board contain the transfer case position and speed limiting logic?
Based on the live data stream for the SmartBar, I would say yes.

Image

Image
Reloaderguy wrote:
Wed Apr 18, 2018 2:06 pm
If yes, can anyone identify the circuit path on the board?
I believe it passes right through the middle of the flux capacitor. If tampered with, it will interrupt the space time continuum resulting in your truck being filled with manure. :lol:

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Re: Hardwired Lockers with OEM Knob

Post by olyelr » Fri Apr 20, 2018 8:32 am

Lmao!

I find it funny they have the speed set at 119 mph for the lockers to unlock lol
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Re: Hardwired Lockers with OEM Knob

Post by Bill2014 » Fri Apr 20, 2018 11:11 am

olyelr wrote:
Fri Apr 20, 2018 8:32 am
Lmao!

I find it funny they have the speed set at 119 mph for the lockers to unlock lol
What????
you cant get to 119 mph in low range? :wink:
Have you tried?? :popcorn:
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Re: Hardwired Lockers with OEM Knob

Post by olyelr » Fri Apr 20, 2018 8:45 pm

Bill2014 wrote:
Fri Apr 20, 2018 11:11 am
olyelr wrote:
Fri Apr 20, 2018 8:32 am
Lmao!

I find it funny they have the speed set at 119 mph for the lockers to unlock lol
What????
you cant get to 119 mph in low range? :wink:
Have you tried?? :popcorn:
No I guess not. I have been across the dunes in 4low in overdrive close to redline though... its nowhere near 119 mpg :lol:
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Re: Hardwired Lockers with OEM Knob

Post by Reloaderguy » Fri Apr 20, 2018 9:02 pm

Has anyone tried either jumpering or splicing C to G and D to H inside the Smartbar or the wires outside? It seems the bar is being supplied power but then interrupting it in the logic board. That is essentially what the 4th Gen locker bypass is doing at the plug next to the computer. It'll throw a code but will be hard wired to the OE knob. Maybe a resistor or capacitor soldered directly onto the board can satisfy the position logic?
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Re: Hardwired Lockers with OEM Knob

Post by BoldAdventure » Sat Apr 21, 2018 12:00 am

Why don’t you try it? And report back.
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Re: Hardwired Lockers with OEM Knob

Post by Reloaderguy » Sat Apr 21, 2018 10:29 am

I probably will but it's going to be a while, I don't have a Smartbar in my truck and the factory wiring isn't running to my lockers.

Can I have your old smartbar?
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Re: Hardwired Lockers with OEM Knob

Post by BoldAdventure » Sat Apr 21, 2018 12:36 pm

Mine is in route to PitSlave and my spare unit is promised now to another dude.
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Re: Hardwired Lockers with OEM Knob

Post by olyelr » Sat Apr 21, 2018 12:46 pm

MikeKey wrote:
Sat Apr 21, 2018 12:36 pm
Mine is in route to PitSlave...
Im liking the sounds of this! :D
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Re: Hardwired Lockers with OEM Knob

Post by Reloaderguy » Sat Apr 21, 2018 8:40 pm

I popped the hood today and started to get tools out to pull the module mounted behind the grill when I came to the realization I just don't care that much. Maybe when I do the steering or bumper I'll have more interest...or not. Either way, good luck to you guys.
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Re: Hardwired Lockers with OEM Knob

Post by DamageWagon » Sat Apr 21, 2018 9:42 pm

^^^^^ the death of 98.7% of all projects

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Re: Hardwired Lockers with OEM Knob

Post by BoldAdventure » Sun Apr 22, 2018 10:00 am

My shit works and that’s about the extent of my caring as well, lol
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Re: Hardwired Lockers with OEM Knob

Post by Reloaderguy » Sun Apr 22, 2018 10:09 am

I already have a bypass. Maybe one of you guys that want to bypass your lockers can try jumping the pins i mentioned earlier and see what happens.
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Re: Hardwired Lockers with OEM Knob

Post by Retired BLM Rig » Sun Apr 22, 2018 11:45 am

Reloaderguy wrote:
Sun Apr 22, 2018 10:09 am
I already have a bypass. Maybe one of you guys that want to bypass your lockers can try jumping the pins i mentioned earlier and see what happens.
I'm pretty sure that jumping those pins would result in a dead short and a blown fuse, unless I'm misunderstanding your meaning somehow. :secret:

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Re: Hardwired Lockers with OEM Knob

Post by Reloaderguy » Sun Apr 22, 2018 5:30 pm

Retired BLM Rig wrote:
Sun Apr 22, 2018 11:45 am
Reloaderguy wrote:
Sun Apr 22, 2018 10:09 am
I already have a bypass. Maybe one of you guys that want to bypass your lockers can try jumping the pins i mentioned earlier and see what happens.
I'm pretty sure that jumping those pins would result in a dead short and a blown fuse, unless I'm misunderstanding your meaning somehow. :secret:
Isn't the locker return the power source to the locker?
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Re: Hardwired Lockers with OEM Knob

Post by Retired BLM Rig » Sun Apr 22, 2018 9:13 pm

Reloaderguy wrote:
Sun Apr 22, 2018 5:30 pm
Retired BLM Rig wrote:
Sun Apr 22, 2018 11:45 am
Reloaderguy wrote:
Sun Apr 22, 2018 10:09 am
I already have a bypass. Maybe one of you guys that want to bypass your lockers can try jumping the pins i mentioned earlier and see what happens.
I'm pretty sure that jumping those pins would result in a dead short and a blown fuse, unless I'm misunderstanding your meaning somehow. :secret:
Isn't the locker return the power source to the locker?
Ah yes... Ram and their unfortunate choice of words for describing a circuit. :doh: It's like they make it confusing on purpose. :angry:
As far as the locker actuators are concerned:
  • "Source" means +12 Volt or power
  • "Return" means -12 Volt or ground
image.jpg
Pin #4 would be +12 volt coming from the SmartBar to the locker and Pin #6 would be -12 volt coming from the SmartBar.



On this image that I posted earlier, pins C & D would be +12 volt/power being sent from the SmartBar to the locker actuators and pins G & H would be -12 volt/ground being sent from the SmartBar to the locker actuators.

Image

I know that technically electricity is always looking for the path of least resistance to ground and circuits are usually viewed as being a loop, so + is the source of power being sent out and - is the return path to the ground that the electrons are looking for.
EL_circuit.jpg
In this image, substitute the word "Locker" for "Light Bulb/Load".
That's my best attempt at explaining why they use the terms "Source" and "Return". :patriot:

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Re: Hardwired Lockers with OEM Knob

Post by Reloaderguy » Sun Apr 22, 2018 9:19 pm

My volt meter would have stopped me from wiring the positive into the negative. LOL

So which is the locker power out from the smartbar?
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Re: Hardwired Lockers with OEM Knob

Post by Retired BLM Rig » Sun Apr 22, 2018 9:48 pm

Reloaderguy wrote:
Sun Apr 22, 2018 9:19 pm
So which is the locker power out from the smartbar?
Pin C is power going out to the front locker.
Pin D is power going out to the rear locker.

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Re: Hardwired Lockers with OEM Knob

Post by Low_Sky » Sun Apr 22, 2018 11:18 pm

BLM Rig, do you know if G/H are a common ground, or a floating ground that's only grounded when C/D are hot? If G/H are common and always grounded, one should be able to tap only into C/D right by the smart bar and save a lot of wiring. Would diodes be necessary to keep from back feeding +12V into the smartbar?
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Re: Hardwired Lockers with OEM Knob

Post by Retired BLM Rig » Mon Apr 23, 2018 2:37 am

Low_Sky wrote:
Sun Apr 22, 2018 11:18 pm
BLM Rig, do you know if G/H are a common ground, or a floating ground that's only grounded when C/D are hot? If G/H are common and always grounded, one should be able to tap only into C/D right by the smart bar and save a lot of wiring. Would diodes be necessary to keep from back feeding +12V into the smartbar?
Sorry I haven't had the need to test the ground side of the system yet, I don't know.

Yes, I would use diodes to protect the SmartBar if it was still going to be in the system. I would also use potted or weatherproof relays that have a built-in voltage spike suppressing diode or resistor like this one to protect any delicate electronics that were still part of the system.

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Re: Hardwired Lockers with OEM Knob

Post by Reloaderguy » Mon Apr 23, 2018 12:04 pm

Low_Sky wrote:
Sun Apr 22, 2018 11:18 pm
BLM Rig, do you know if G/H are a common ground, or a floating ground that's only grounded when C/D are hot? If G/H are common and always grounded, one should be able to tap only into C/D right by the smart bar and save a lot of wiring. Would diodes be necessary to keep from back feeding +12V into the smartbar?
That's what I was thinking. The locker power source is a connector on the passenger side of the rad, I'm just not sure which pins are the power in for the lockers in the Smartbar.
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