Breathalyzer in 2004 saturn Ion

The guys next door do them as well, and I gave them a hand on one in a Colorado. The principle will remain the same. You have to interrupt something to make sure the vehicle will not crank, correct? The easiest thing to do would be to interrupt the Passlock data wire at the key. If the ECM doesen't recieve the correct resistance in the start position, it will not trigger the starter...... There is an ignition feed at the key, and there is a tach signal as well. I will double check tomorrow with the shop next door as to how the Colorado is working. Like I said, you need to interrupt whatever cranks the motor, so I would go after the Passlock Data wire (if it fails while it is running, you get a light..... the vehicle will still run) HTH Gus Wherever I go, that is where I end up......

STARTER 1   yellow (not for remote start) - pin 48 or 46, blue plug, ecm Shaughn Murley

Install Manager, Dealer Services

Visions Electronics

Red Deer, Alberta

Will have a definate answer on Tues. AM as to what they do on these things here in MB. There is an interlock training seminar that I'm going to at the shop next door and just be a fly on the wall (that, and they want to grill me for info I'm sure...) Gus Wherever I go, that is where I end up......