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Adding Traction Control

neonhomer

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neonhomer Enthusiast

neonhomer

Posted
Posted

Someone was telling me that traction control might be available on my truck. A friend of mine who knows a thing or two about the inner programming of the PCM says there are tables in the PCM for traction control.

 

Looking at the PCM pinout, there is two references to torque..... C1, pin 13, Requested Torque Signal (NW7), and C2, pin 5, Delivered Torque Signal (NW7).

 

NW7 is the RPO code for Electronic Traction Control. My thinking is that C1-13 is the switch, and C2-5 is the light.

 

Question is.... how is the switch controlled? Is is a 5v signal that has to be grounded to activate, or do I need to find a 5v source to send to that line to activate.

 

If the "light" is right, it should be a 12vdc to power a light (like in a switch or a dash indicator).

 

 

Okay.. well, I just went out to the truck, and there is the option for it.... so now the question is how to install and enable it.

superjim Senior Enthusiast

superjim

Posted
Posted

What do you mean....

 

 

"Okay.. well, I just went out to the truck, and there is the option for it.... so now the question is how to install and enable it."

neonhomer Enthusiast

neonhomer

Posted
  • Author
Posted

From doing some reading, there are a few different ABS controllers. one of the options is w/ or w/o traction control.

neonhomer Enthusiast

neonhomer

Posted
  • Author
Posted

No, it's not 4wd.... Traction Control (or TAS as it is called in the manual) is only available in the 2wd models.... was probably an option for the SS models.

Ranger Senior Enthusiast

Ranger

Posted
Posted

I would not enable that pesky damn thing at all...The only "traction control" devices you need are a rear locking differential and that middle/left pedal...I had Traction Control on my Colorado and hated it, almost got me rear ended a few times.

redvett Senior Enthusiast

redvett

Posted
Posted

Your truck has a 3 channel ABS and you need a 4 channel to control the two back brakes separately. You also need a speed sensor at each rear wheel, your only has the speed sensor at the transmission. Along with plumbing,wiring & soft-wear and more its not a cheap or easy job unless you find a donor truck of the same M/Y.

neonhomer Enthusiast

neonhomer

Posted
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Posted

Hmmmm... I don't know if my truck is configured like that or not. Would have to look into it more.

 

Anyway, I had a CMR dealer go into my tune and zero out the torque reduction tables, effectively disabling traction control.

 

I just thought it would be nice to be able to enable it and disable it at will, without having to reload a tune to the truck.

redvett Senior Enthusiast

redvett

Posted
Posted

You had torque management removed not traction control. Torque Management controls the power you can put to the drive line and abuse it. Traction control will when on wet or slippery surfaces enable and provide traction to the wheel that slips.

 

Hmmmm... I don't know if my truck is configured like that or not. Would have to look into it more.

 

Anyway, I had a CMR dealer go into my tune and zero out the torque reduction tables, effectively disabling traction control.

 

I just thought it would be nice to be able to enable it and disable it at will, without having to reload a tune to the truck.

neonhomer Enthusiast

neonhomer

Posted
  • Author
Posted

Actually, both were removed.... Torque Management can be removed from the Predator handheld, but torque reduction (traction control) has to be removed through CMR (Diablo's custom tune software).

 

Where does the TC button normally mount in these trucks anyway? I can't find a listing for the TC/TAS button anywhere.

redvett Senior Enthusiast

redvett

Posted
Posted

NW7 TRACTION CONTROL – ELECTRONIC was only available on the Tahoe & Surburban 4x2 in 2004

The button was at the left of the steering wheel and when you started up the vehicle a light would light up in the cluster.

 

Actually, both were removed.... Torque Management can be removed from the Predator handheld, but torque reduction (traction control) has to be removed through CMR (Diablo's custom tune software).

 

Where does the TC button normally mount in these trucks anyway? I can't find a listing for the TC/TAS button anywhere.

06MonteSS Enthusiast

06MonteSS

Posted
Posted
You had torque management removed not traction control. Torque Management controls the power you can put to the drive line and abuse it. Traction control will when on wet or slippery surfaces enable and provide traction to the wheel that slips.

 

Hmmmm... I don't know if my truck is configured like that or not. Would have to look into it more.

 

Anyway, I had a CMR dealer go into my tune and zero out the torque reduction tables, effectively disabling traction control.

 

I just thought it would be nice to be able to enable it and disable it at will, without having to reload a tune to the truck.

 

 

nope, he had TRACTION CONTROL removed - there are two tables in the tune file for the traction control... I know, cuz I did it....

 

torque management is already just about totally removed in the diablo tunes anyway... but traction control is not...

 

and yeah, I know the difference between the two and what they're for.... heh...

 

 

but yeah, as was mentioned, just wiring up a switch isn't going to do anything without the correct additional modules/sensors...

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