Tow/haul mode with indicator light?
Thread Starter
Teching In
Joined: Mar 2014
Posts: 12
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Tow/haul mode with indicator light? Swapped a 2002 Yukon 5.3 and 4l60e into my jeep J10. I have a momentary switch installed to enable or disable tow/haul mode and it works fine but there is no light that tells me its engaged as there was on the original GMC dash. I don't see an output for this on the PCM either.
What I want to do is push the tow button and see a light or LED come on until I push it again disabling tow and turning off the indicator. Anybody have an easy solution to this simple problem?
Thanks
Jeff
What I want to do is push the tow button and see a light or LED come on until I push it again disabling tow and turning off the indicator. Anybody have an easy solution to this simple problem?
Thanks
Jeff
Thread Starter
Teching In
Joined: Mar 2014
Posts: 12
Likes: 0
No BCM on my older setup. There has to be an easy way to do this. Maybe with a relay or two? In my dream, when I push the button, pin 71 is momentarily grounded and a dash light (that I install) is on. Push it again and pin 71 is grounded again disabling tow/haul and the light goes out. Anybody have a simple relay design for this?
Thanks
Thanks
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
I had wanted to do that too. I was going to try using a circuit like this http://todbot.com/blog/2010/01/02/mo...omment-page-2/ but never bothered to get around to it.
