Dim-able Electrical Connection on 05

[jelag]

I'm looking for a dim-able connection under the dash to tie in the lights on a gauge...



Any thoughts... Thanks...

 

[Bill Stockard]

I'm looking for a dim-able connection under the dash to tie in the lights on a gauge...

Any thoughts... Thanks...

Check Geno's Garage web site, Installation Instructions, Gauge Installation Tips '03-'09 Trucks. Your answer should be there.

Bill

 

[jelag]

Geez Bill.....

You are so right... . got exactly what I need... . and to be honest when I ordered the parts from Geno's I missed that part of the web page... . I guess I should spend more time surfing the sight...

 

[p-Bar]

I pulled off the light for the heat/ac control you will find a bulb there to tie into to

 

[jelag]

05 Dually... . gauge wiring...

OK, I'm back to page #1... . I went to the Geno Garage site... pin #2, orange/brown wire is the power to dimmer...

pin #2, orange/brown is hot at the connector when the switch is disconnected from the wiring harness... and... with the dimmer wire from the gauge connected the gauge light does not come on...

The gauge is an ISSPRO EV2 EGT gauge from Geno's... . 6 leads... hot, dimmer, ground, red, yellow, ground (last 3 from EGT probe)

I've had it apart 3 times... rechecked my work... I've not contacted Geno's yet... Suggestions...

 

[p-Bar]

Call Isspro direct and have them help you troubleshoot it

 

[TLane]

Do you have the hot and the ground hooked up, as well as the dimmer wire? Some gauges power the bulb from the hot and use the dimmer wire only to vary the voltage applied to the bulb, especially if it has LED lighting.

Of course, the ground has to be good as well.

 

[JJPage]

I've had it apart 3 times... rechecked my work... I've not contacted Geno's yet... Suggestions...

Since my last recommendation to you didn't pan out so well... I'm a bit gunshy to repeat another. Troy Yonkers in Post Falls installed a set of Isspro EV2's in my brother Randy's 05 last spring, did a very nice install.

 

[Bob4x4]

As Pbar suggested you can get the dash light power you want safely from the back of the ac control or the radio pin 3 on the grey 22 way connector. It will be a 20 gauge orange with tan tracer. Or cavity 8 of the black 16 way connector of the ac controller 20gauge OR/GY

 

[jelag]

OK... I can't believe that something this simple can catch me like this... I understood the directions... this is an electronic gauge... it functions well... no problems there. . I'll move my dimmer wire to the suggestion by Bob and see how it works...

Before I wrote the above... it put a test light on the back of each connector... with the dimmer switch connected and of course the lights on... I'd swing the dimmer switch from dim to bright and not one of the connectors made the test light go dim... . yet the lights on the dash would dim... I can only assume that the dimmer switch drives a computer... BTW all the wires to the headlight switch... . all 6 of them are 20 gauge wires so there's really no current flowing in these circuits... .

Jess... like I mentioned... I interviewed several and made my pick... I've been back to see him... had him fix an oil leak at the valve cover gasket... More on this later... . we drag up and leave for our volunteer job at Bonneville Fish Hatchery the 15th... all must be ready and it will be... .

Jim

 

[cerberusiam]

Orange with black tracer (looks black to me) should be the dimmer wire and will dim the gauge lights, that is the way mine is hooked up and it works. If you have EV2's you are better off getting the dimmer switch setup and using it anyway. Unless you like all the dash and gauge lights brite you will have a problem balancing the gauges with the dash. The gauges will always be brighter and when you go to low with the cluster lights the gauge lights start flickering.

 

[ProLean]

If you have a gauge with an LED light, you will always have a brighter gauge than the stock cluster because the LEDs are so much more efficient with the energy supplied. I ran into this with my truck when installing the Autometers I have now. Autometer makes a module they sell for $40 that lets you vary the voltage to try and match your stock cluster. I just went to radio shack and bought a few resisters and put one in line with that dimmed circuit. I think I ended up using a 1000 ohm resistor. It was a . 5 watt resistor I believe. You can go dimmer or brighter depending on your taste. The lower the number on the ohms... the brighter the LEDs. It cost me about $3 for everything and it works great!

Good luck JELAG

 

[Joseph Donnelly]

I got dimmer power behind the headlight switch.

 

[jelag]

Joe

That's where Geno's Garage sent me with their instructions on their web page... Pin #2 orange/brown wire at the head light switch... . however that pin is hot all the time... . the other orange/brown wire is pin 6 and no matter what I did with the headlight switch I couldn't get that terminal to light up... since all these wires are 20 gauge I assume this whole thing goes to and from a computer... . I used a test light... so I'm going to take one of the other suggestions and open the dash again and find either the AC controls or Radio Controls (connector) and will do that tomorrow... It was nice when a switch supplied power to an accessory or to a relay...

BTW - emailed ISSPRO and no answer from 2 days ago... but will call them Monday if I don't have this solved... I will however make sure that I have a circuit that is in fact the dimmer connection... when the wire goes to a light bulb I know I can verify that...

 

[Joseph Donnelly]

I don't remember the wire color code. I poked the test light probe into the connector until I found the wire that lighted up the test light and dimmed it; it is only hot when the ignition is on.

 

[cerberusiam]

The dimmer wire is the ground side of the circuit like everything else in the wiring so there is no load. There are 2 orange wires with a traces and I can't tell if they are brown or black, the bottom wire on the light switch connector is the correct one.

 

[jelag]

OK Guys... I'm now fixed... . I did like what was suggested and pulled open the controls behind the AC pin #8 gray with an orange trace... checked it with a test light and its the right wire... . test light dims with the dimmer switch... I than went back to the head light switch and tested the wires there... . and re-tested the wire suggested by Geno's Garage in their installations tips... . Like Cerberusiam said in the above post... there are 2 orange/brown or orange/black on the head light switch and pin #2 as suggested by Geno's is not the correct one to make this gauge work... and frankly neither is the other orange/brown wire... so I now reconnected the gauge and all works well, like it should...

Thanks for all your input.....