2001 Silverado with RS700 II

Thanks for the reply Jeff.

OK.  I tested the brown wire and I get a negative pulse from it when activated.  I also put the PLDATA jumper in the operation setting after programming.   Let me ask you this.  Even with the PLDATA installed do I still need to send that (-) pulse to the factory alarm disarm wire?  Any other suggestions?  On the RS700 I have the ING 1 wire going to the pink wire from the ingition harness and the ING2 going to the white wire on the ignition harness.  The start wire is going to yellow on the ignition harness.  Is there another ingition wire I need to be energizing?

Yes, you still need to send a (-) signal to the OEM alarm system ( if the truck has OEM alarm ), otherwise the alarm will be set off when you try to remote start the truck. No other IGN wire , but you have the ORANGE ACC wire that controls the HVAC that needs to be hooked up. Make suer that your TACH wire ACTUALLY programmed to the unit. What wire did you use and did you get confirmation fromt he unit that it learned properly ??

I have verified the tach wire and it is programmed to the unit.  I got the tach wire off of the ECM under the battery (position 10 on the red connector, white wire).  I also verified that the tach wire is not a data wire, as the starter instructions show how to do that. 

I also now have the ACC orange wire connected as a second ING 2 via relay. 

Anyone know how long a (-) pulse needs to be sent to the PLDATA to activate it?  Right now I am using the disarm output wire on the starter, and it is sending a (-) pulse to the PLDATA about 2 seconds before the starter activates.

Could I just have a bad RS or PLDATA??  I'm starting to think that way.   I am sure it probably rare that these go bad or are defective from the factory but I suppose it could happen.

OK, first thing I will explain is I have been in the electrical business for almost 25 years.  I don't know how many times I have found bad connections either causing malfunctioning equipment or disabling equipment beyond repair.  Well, it caught me.  I found my problem when I connected the data interface data wire (PLDATA II) to the trucks Passlock data wire.  I made a bad connection there and that was it. 

I did find out one thing.  There are alot of people out there willing to share their knowledge in forums like these and it sure is nice know that you can still get something for nothing.  I appreciate all the people who posted to this thread and I hope someday I can return the favor.  Thanks a lot and God Bless!!