Jump to content

Ign Power Only

pchrist

Recommended Posts

pchrist Enthusiast

pchrist

Posted
Posted

Does anyone know where i can tie into an power line under the dash or in the interior fuse box for a some power? I am looking for something that is only on when the ignition is turned.

 

TY in advance!!!

Hubie Enthusiast

Hubie

Posted
Posted
Does anyone know where i can tie into an power line under the dash or in the interior fuse box for a some power? I am looking for something that is only on when the ignition is turned.

 

TY in advance!!!

 

 

X2 on that one, also where under the hood can I tie into and only have power when the ignition is on? Oh and its for the NBS.

jpk Enthusiast

jpk

Posted
Posted

Tap any relay terminal marked #30. That should be switched ignition power. I found one in the main power distribution center under the hood for my fog lights and on the dash-end panel for my XM radio. I have a GMT800 though, so I don't know how the newer ones might be different

dlewis1111 Senior Enthusiast

dlewis1111

Posted
Posted
Does anyone know where i can tie into an power line under the dash or in the interior fuse box for a some power? I am looking for something that is only on when the ignition is turned.

 

TY in advance!!!

 

using a multimeter, set it for DC voltage and ground the black lead. With the ignition on, test probe some of the unused circuits. Find 12v, and then check again with the ignition off (keeping in mind the possible 10 min key off power). If it is not present with the key off, then voila.

Wires Enthusiast

Wires

Posted
Posted

I found power under the dash in my GMT900. There was ignition power for the power seats or something like that. I couldn't find any ignition type sources in the fuse block.

 

That's where I wired my GPS to (and it saved the trouble of getting power through the firewall.)

mfennema Enthusiast

mfennema

Posted
Posted

Search on this forum for RAP (Retained Accessory Power). In the 07+ trucks you can find a power source like this in the box under the dash behind the brake pedal.

Wires Enthusiast

Wires

Posted
Posted

I don't remember exactly. Just started probing that junction box with a voltmeter. I believe the wire that I tapped into was "yellow", typical for ignition power.

Wires Enthusiast

Wires

Posted
Posted
I don't remember exactly. Just started probing that junction box with a voltmeter. I believe the wire that I tapped into was "yellow", typical for ignition power.

 

I was over at the Denali Truck forum, and they have a copy of the electrical service manual for the GMT900's. According to it:

 

"Locate the power supply harness under the instrument panel near the center of the vehicle. The wire bundle consists of six blunt cut wires, two red/white (battery hot), two black (ground, one light green (Ign Hot) and one light blue (Ign Hot)."

 

Just grab one of the black wires and a light green (or light blue), and hook onto that. Nice clean install.

 

The combination of power out of one of the bat wires + one of the ign wires needs to be less than 21Amps.

Wires Enthusiast

Wires

Posted
Posted
Let us all know if you find that and where you find it. I have looked and never found it myself.

 

How hard could it be? :confused:

 

I know it took me a bit just to find the trailer brake harness, even when I knew exactly where to look. They seem to tape/hide those things pretty good.

 

I have a center console, so it would be even harder to find.

  • 2 weeks later...
jrjohnson966 Enthusiast

jrjohnson966

Posted
Posted

I was unable to locate the wiring bundle consisting of the 6 blunt cut wires which are supposed to be located under the instrument panel near the center of the vehicle. After much reading on this site, I was able to locate a source for switched 12v power under the dash. I am now using it to power my Sirius unit and have had no problems.

 

Here is a link to the information that solved my problem:

http://www.gm-trucks.com/forums/index.php?...hl=12v&st=0

 

There is a picture on this message, about 3/4 of the way down on the first page, which has an arrow pointing to the location of a 12v switched power source. As it states, the top left post is the 12v switched.

 

I connected to this post using a wire that has an in-line fuse, connected to a ground, and now have switched 12v power.

 

Hope this helps.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • GAMark
      Road Master Active Suspension

      By GAMark · Posted

      Not true! I have been runing them since 2006 F250! suspension component that works as a sway bar, a traction bar, and a helper spring points directly to the RoadActive Suspension (RAS) kit. Works as a sway bar, a traction bar, and a helper spring.
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Here's a starter kit:    CC Jensen, a Danish oil testing Concern gives us the following guidelines:   ISO 14/12/10 Very Clean Oil ISO 16/14/11 Clean Oil ISO 17/15/12 Lightly Contaminated ISO 19/17/14 New Oil ISO 22/20/17 Very Contaminated and not suitable for any service.   In addition CC Jensen gives a table showing how engine life is increased by cleaning up the oil. For example cleaning the oil from 19/17/14 to 13/11/8 will extend motor life by a factor of 6X.   But even cleaning it two “Life Extension Classes” will double motor life. So perhaps giving those classes would be useful:   21/19/16 20/18/15 19/17/14 18/16/13 17/15/12 16/14/11 15/13/10 14/12/9 13/11/8   *************************************   https://testoil.com/program-management/setting-iso-cleanliness-targets/   Third paragraph from the bottom will give a starting point.    Your next question should be, okay 10um at what Beta ratio and the answer is in the graph Beta 75.   Then the next question is what is your chosen filters profile? (Purolator PL series below) The red dot is Beta 75. This was the information I obtained from MANN a few years ago. So the best filters, Purolator One, AMSOIL EA, FRAM Ultra, Royal Purple, Bosch Premium should get a doubling engine life over filters like Purolator L, any service filter from any quick lube, WIX, NAPA, STP, Mobil 1, Purolator BOSS.    And as noted by CC Jensen a 2-5 micron @ Beta 200 bypass system has the capability of a six fold improvement. AMSOIL has such a system as does Donaldson.       Now having said all that testing is the touchstone. Test the oil NEW and test it with your chosen filter. Then test over milage. Do the work, get the result. But understand this in NOT absolute BECAUSE this is one factor in isolation.   Example:    A valve spring supplier can state that with cam X and a valve train of Y grams the valves will not float to 7K rpm. is that true if the builder choose a system 20 grams over limit? Common sense must be used and limits understood. 
    • bruceb58
      Road Master Active Suspension

      By bruceb58 · Posted

      This doesn't look like a GM truck. Not needed on a HD truck
    • CamGTP
      Gas Prices

      By CamGTP · Posted

      It varies a ton around me. Some places are still at $5.00 or higher and others are way down into the $4's.   Offroad diesel was $4.02 at the one station I passed today.
    • Hdwrguy
      2027 Chevrolet Silverado: Official Discussion

      By Hdwrguy · Posted

      So after reading the reveal from Chevrolet, I kept asking myself...why did the trim levels change?   Here are the official ones:   Work Truck (WT): The quintessential fleet truck, built with durable, easy-to-clean interiors for commercial or utilitarian use. Custom: A stylish, road-oriented trim that adds a more refined appearance, standard dual exhaust, and modern exterior styling. Custom Trail Boss: An entry-level off-roader featuring a 2-inch factory suspension lift and 34-inch mud-terrain tires on a budget. Silverado: Serving as the new base consumer truck (replacing the previous LT trim), it comes standard with the Z71 off-road package when equipped with 4WD. Trail Boss: Steps up the off-road hardware with the 2-inch lift, 34-inch tires, monotube shocks, an exclusive off-road hood, and more premium interior options. ZR2: The flagship off-roader. It boasts 35-inch mud-terrain tires, Multimatic DSSV dampers, front and rear electronic lockers, forged carbon-fiber interior accents, and an available hardcore Bison Edition (co-developed with AEV). High Country: The pinnacle of luxury. It replaces bright chrome with modern satin chrome, 22-inch wheels, premium leather, real wood interior trim, a panoramic sunroof, and an exclusive front-passenger touchscreen. As others have stated, why would you want a Silverado - 'Silverado' - wth?? LT needs to remain!!!   Also, there will no longer be a dedicated Z71 model.  All 4x4 trucks will have the Z71 package. Carplay is also something that cannot be removed.  Hopefully it will remain.     I am excited about the 5.7L V8 (350 C.I.D.)  Old school Chevy power.  My only concern is whatever version of AFM/DFM cylinder deactivation.  Too bad that isn't an option a buyer can choose to have or not.   I will definitely be stopping by my local dealership when these trucks start showing up.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...