ckennedy

sorry to post here but - have been trying to put a cool down timer on my truck all day and can't seem to find the right wire for the ISSPRO cool down timer... I can't find the ign. wire that would be running when key is out and timer is counting down...

found my dimmer wire and good wiring for gauges but can;t find wire for timer... any help on the ign. bundle wirinf on 600 engine.???

handymantim

Can you post the exact directions from the ISSPRO? i.e. what is the exact title or function of the wire you're trying to find? I might have better luck looking through my shop manual for that wire if you could post the steps from the install manual.

ckennedy

handyman! here is a photo.. as you can see I need a link to the ign ckt.. the prob. is I THINK i need the MAIN one for the ign. wiring.. not just any hot lead.. so when I turn the key off the system is in check untell the timer opens the curcuit again...

handymantim

Sorry but I can't figure out which wire you're looking for from that diagram. Are there any written directions in that install manual?

ckennedy

oops.. sorry about that... I am working on the far left wire... the one for the ign. switch... and no there are not any REAL instructions on this one.. There is only general inst. on wire gauge and the optional cut off switch and hooking up the temp. probe.. I may try to call a dealer in the AM.. or some of the online sites like PEIRS or Diesel Power Products, etc....

ps: The vehcile ign Ckt. wiring on the left...

ckennedy

tim - just wanted to say thanks for trying to help out...

duner

those are about the worst directions i've ever seen. they should have just sent you a piece of paper saying "hook it up" i wasn't too impressed with the instructions they sent with my gauges either. just my rant! good luck

handymantim

I'm 90% sure the PK/GY wire is the wire you're talking about. According to my manual that is the wire coming from the ignition switch to the PCM for "run/start".

To confirm the other 10% you might want to wait for confirmation from someone else on this site or maybe someone who has actually installed the ISSPRO. Maybe the place you bought it?

The yellow wire from the ignition switch is the "start" wire.

Good luck. Wish I could give you a definitive answer.

spunbearing

Looks like you just need any ignition switched hot. Just get a test light with a piercing probe and find one that is hot when the key is on and is dead when the key is off... no big deal.<edit> OOPS you want the constant ignition hot.. not the one that triggers the relay for the heating coils temporarily.

ckennedy

thanks all for input... I have been working on another part of install... have a tech calling DC in AM... We will see what they come up with!! I will let you know...

ckennedy

ok.. have put in all 4 gauges aboe rear view mirror.. Got the cool down timer in and working.. I am going to Big Bend National Park ffor turkey day - will post ign. wiring taps and other stuff when I get back!@

ckennedy

please see link for correct ign wire info on HO 600.. timer is in and working correctly!!

https://www.dieseltruckresource.com/...threadid=55712