TXjeepTJ

iTrader: (8)

So the instructions I got from the wiring harness company I used say to used NORMALLY CLOSED momentary switches for the "cruise set/coast" and "cruise resume/accelerate".

All the diagrams I look at looks like you should use NORMALLY OPEN momentary switches.. Just want to see which is correct..

Does PCM look for a pulsed 12v signal? Or as a normally closed switch would provide- a constant 12v source and when pushed it cuts the 12volts momentarily

Thanks

LonghornSS

A normally closed switch is generally opposite to the way cruise the control Circuits I have used operate.
A little more information would be helpful. Who's wire harness are you using and what PCM, is the cruise controlled by the engine PCM or an outside module?

TXjeepTJ

iTrader: (8)

It's a psi conversions wiring harness, I have a standard 2002 ls1 style PCM - the wires for the cruise control are coming from the TAC module of the electronic throttle pedal

ls1nova71

iTrader: (4)

You need normally open switches for set/coast and resume/accel.

Punisher8738

iTrader: (1)

For what it's worth I have a Spear tech harness and used a Dakota Digital HND-1 when I had dbw.

aknovaman

iTrader: (7)

Just connect it up as shown in the diagrams. On switch is a toggle, others are momentary.

aknovaman

iTrader: (7)

http://chevythunder.com/drive_by_wir...C%20Controller

On switch is toggle, set, resume are momentary.

TXjeepTJ

iTrader: (8)

Right, but I was questioning the initial position of the momentary switches. Instructions say to use 'normally closed' when everything else says to use 'normally open'

I guess I'll just wire it up using normally open momentary switches and hope to god nothing bad happens when I flip the 'on' switch... lol

ls1nova71

iTrader: (4)

You definitely need normally open switches. Nothing bad will happen if you use normally closed switches, like most aftermarket turn signal lever mounted ones (not the DD hdn-1), other than the fact that the cruise won't operate.

LonghornSS

I used a cruise lever from a G body Car and just modified it so there was no washer lever and made an adapter to go to mount to my IDIDIT column.

TXjeepTJ

iTrader: (8)

Got it all hooked up, but nothing happens when I flip the switch to run send "on power" and toggle 12v to PCM using momentary normally open switches..

Anyone know what else I can check?

aknovaman

iTrader: (7)

Plz check your PM.

ls1nova71

iTrader: (4)

There are several things to check, but I usually start with the easy stuff first. Do you have all the wires hooked up? Do you have 12v at the on/off switch? Do you have LED brake lights?