I may just that a try.
Isspro dimming issues
Elder User
Joined: Jun 2012
Posts: 536
Likes: 2
From: N. Va.
Did you get them where you wanted them? I have the same problem trying to match the gauge intensity to the dash. When I adjust the voltage in the ISSPRO program and hook them back up it doesn't appear to be doing anything. Damn it Jim!!!
Thread Starter
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Postmaster
Joined: Jun 2010
Posts: 2,555
Likes: 9
From: Longview, TX
I haven't ordered the software yet. I am waiting until I need something else and I'll tag that onto it. Sorry I can't help any further. If you have the software, maybe give isspro a call and see if they can walk you through it.
Junior User
Joined: Feb 2012
Posts: 52
Likes: 0
I had the same problem with my Isspro EV2 gauges. I know that some instructions say to wire the gauges to the dash light source and to use the dash dimmer but as you have found out there are issues.
Also I have some friends that burned out their dash dimmer by wiring it like described above.
You may want to try this:
1. Use the parking light wire for the power source.
(I used the dark brown wire on my light switch. If I remember it's the parking light power source. This way your gauges are only lit when you have your head lights or parking lights turned on. )
2. Buy an Autometer led dimmer.
3. Wire the dimmer to the power source mentioned above.
4. Set the led dimmer to match your dash panel lights (or however you want to set them)
You will be good to go.
On my 2000 F350 7.3L CC I have Autometer and Isspro gauges. My install was a bit different as I pulled a wire directly off my battery and installed a separate relay for my power but used the brown wire to activate my relay.
Maybe I'll do a write-up on how I did my wiring if there is any interest.
Also I have some friends that burned out their dash dimmer by wiring it like described above.
You may want to try this:
1. Use the parking light wire for the power source.
(I used the dark brown wire on my light switch. If I remember it's the parking light power source. This way your gauges are only lit when you have your head lights or parking lights turned on. )
2. Buy an Autometer led dimmer.
3. Wire the dimmer to the power source mentioned above.
4. Set the led dimmer to match your dash panel lights (or however you want to set them)
You will be good to go.
On my 2000 F350 7.3L CC I have Autometer and Isspro gauges. My install was a bit different as I pulled a wire directly off my battery and installed a separate relay for my power but used the brown wire to activate my relay.
Maybe I'll do a write-up on how I did my wiring if there is any interest.
Junior User
Joined: Feb 2012
Posts: 52
Likes: 0
I used the light blue wire with red trace for the ignition-switched 12v source to power up the relay, not the dark brown wire.
The dark brown wire (on the light switch for the parking and running lights) is what I ran to the dimmer for the gauge lighting.
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Postmaster
Joined: Jun 2010
Posts: 2,555
Likes: 9
From: Longview, TX
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Junior User
Joined: Feb 2012
Posts: 52
Likes: 0
jeffreyt, sorry for the confusion. You are right. Thanks for spotting that!
I forgot that the dash dimmer wire is the same color as the wire I used from the steering column harness to power my gauge relay..
Here is a photo of what I am talking about:
This is the red/ light-Blue wire on the dash light switch:
You can see where I first tapped into the dash dimmer switch for my gauges.
I had the same trouble as you so I went with the dark brown wire and Isspro led dimmer deal. It works great.
I forgot that the dash dimmer wire is the same color as the wire I used from the steering column harness to power my gauge relay..
Here is a photo of what I am talking about:
This is the red/ light-Blue wire on the dash light switch:
You can see where I first tapped into the dash dimmer switch for my gauges.
I had the same trouble as you so I went with the dark brown wire and Isspro led dimmer deal. It works great.
Fleet Mechanic
Joined: Nov 2012
Posts: 1,348
Likes: 110
From: Lakeland, Fl
So are you pulling the switched 12v from the brown parking light wire? I'm having the same problem with flickering lights. Mine work just like the OP's video.
Butt-Head
Joined: Apr 2004
Posts: 9,448
Likes: 2,934
From: Reed Point, MT
I guess I am just really surprised at the sheer number of people who actually dim their dash lights at night.
Fleet Mechanic
Joined: Nov 2012
Posts: 1,348
Likes: 110
From: Lakeland, Fl
Thank you Einstein, but I know how to fix the problem, my question was to 4BigGreen about the parking light wire.