02 superduty diesel
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=68164
Printed Date: May 13, 2025 at 6:43 PM
Topic: 02 superduty diesel
Posted By: stiverp
Subject: 02 superduty diesel
Date Posted: December 11, 2005 at 8:50 PM
I've ran into a problem that has never occured. While using a tachless alarm/start system the truck would time out and start as it should, however after it would run for 5-10 seconds it would shut down the alarm would reset, timeout and restart the truck. This happens the 3 programed times and the truck shuts down the last time and system arms. I checked all wires over and over. Even tried hooking it up on the tach/rpm program still the same thing happens. This truck doesn't have pats. Does anyone out there have any ideas that I may have missed. I used the green wire on the back of the insturment cluster as I always do. thanks, Stiver
Replies:
Posted By: customak47
Date Posted: December 12, 2005 at 1:12 PM
under the dash there is a factory harness wrapped with a piece of yellow tape to the left of the steering column called the body acceccory harness used for commercial applications that has a tach wire in it. (green also) that's the tach source i always use. try taking the fuses out of the unit or unplugging it altogether and let it reset, try reprogramming tach to that wire. if this doesn't work it's a defective module, bad ground, or bad install, because these are the easiest vehicles to do, in my opinion
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My rifle is my friend...
Posted By: 5150azn
Date Posted: December 12, 2005 at 2:32 PM
How would you use tach on a diesel vehicle.
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Tell the Snap-On guy I'm not here!
Posted By: rayrobson
Date Posted: December 13, 2005 at 1:00 AM
Here in Canada the wire is sometimes WHITE/ green or GREEN / WHITE in the same aux location. If for some reason you cannot find this tach wire you can purchase a tach generator from a number of suppliers. I agree with custom, these are straight forward installs so check your wiring and do yourself a favour... alaways program tach on a diesel. Hope this helps. ------------- H2s H3s Escalades Denalis all day everyday....if you need help with these vehicles PM me...If I don't know I will find out!
Posted By: KarTuneMan
Date Posted: December 13, 2005 at 1:06 AM
Thge tach is in a factory bundled harness under the dash .....left side of stearing column. GREEN / WHITE....reduce the crank time.....K
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