check my wiring 2007 2500hd

Vehicle: 2007 Chevrolet 2500HD Classic Diesel RS/Alarm: Viper 5902 Module: DLPKGM Here is a link to the document. https://docs.google.com/open?id=0B_6pTh43_ODVYzU3OGIzODItMmQwMi00NDFmLTlkZmQtZTg4OWM0NGRmMWM1 I used the 5901 instruction manual to complete this in addition to some other forum pages. I am going to try to set it up first with D2D. If some features don't work I will hardwire those features in. Previous experience: Multiple stereo systems. Remote Start installed in 88 Chevy Suburban. Main Questions at this point. 1.) Can I use the 12V coming in in the ignition harness for Constant 12v and relay powering or should I run additional 12V constant as I have done in the past? 2.)Do I need an external relay for starter kill since 5902 has built in flex relay? 3.) Instructions for 5901 say to cut the wait to start light and insert a diode with band towards ECM. They show the wait to start wire connected in on the ECM side of the diode. Help me understand doing this since the wait to start wire for the alarm is sensing a ground. It would make sense to me if the wait to start wire was connected on the other side of the relay. Please share any comments thoughts before I get started.James

The wiring looks OK.   In D2D the DLPKGM Green might not be necessary.   The truck also has a Brown Accessory2 wire but may only power very non-essential things.

There appear to be some DEI discrepancies for the 2007 Classic and the DLPKGM module.  In the Install guide it lists more capabilities than what DEI lists at the 2007 Silverado Classic  suggested module page.  ( I have never used this module on this truck, so I can't say for sure.)

1.)  The Red +12V constant at the ignition harness is rated at 40 Amps and has no problem supplying power to all the igntion wires.   The only additional load is the H1/2 Red power wire and the bypass.

2.) The Viper has a built in relay for starter kill so no external relay is needed.

3.)  Put a DMM on the Wait to Start wire and watch it thru a regular key start-up.  The Viper needs a 0V ground signal and the diode ensures it gets it.  The other way is to just set the Viper for a fixed delay time before remote starting ( Menu3, Item 9 ).

Soldering is fun!

kreg357 wrote: The wiring looks OK.   In D2D the DLPKGM Green might not be necessary.   The truck also has a Brown Accessory2 wire but may only power very non-essential things. There appear to be some DEI discrepancies for the 2007 Classic and the DLPKGM module.  In the Install guide it lists more capabilities than what DEI lists at the 2007 Silverado Classic  suggested module page.  ( I have never used this module on this truck, so I can't say for sure.) 1.)  The Red +12V constant at the ignition harness is rated at 40 Amps and has no problem supplying power to all the igntion wires.   The only additional load is the H1/2 Red power wire and the bypass. 2.) The Viper has a built in relay for starter kill so no external relay is needed. 3.)  Put a DMM on the Wait to Start wire and watch it thru a regular key start-up.  The Viper needs a 0V ground signal and the diode ensures it gets it.  The other way is to just set the Viper for a fixed delay time before remote starting ( Menu3, Item 9 ).

Thanks for the reply. Should H3/2,6,and 9 be constant 12v or should they be switched since they feed they feed the relays? Or does it really matter? Is there a disadvantage not powering the second accessory wire? I know that not powering the second ignition can create problems with the check engine light and the transmission. James

Best idea is to use a +12V constant source that can supply the current needs of the Vipers H3 ignition outputs.    That can usually be found with the +12V constant wire(s) in the ignition harness.  ( I'm a firm believer in K.I.S.S.)

The Brown ACC2 wire won't cause any problems if left un-powered during remote start. 

Soldering is fun!

Thank you so much. Last question. Can all the 12volt constants go to one of the 40 amp constant lines in the ignition harness or do I need to split them? Based on the feedback, this is the final wiring chart for the install. https://docs.google.com/open?id=0B_6pTh43_ODVOWI4NTFkN2ItNTA3NS00MWRhLWExNGYtZDNjYTRkODczOGY1James

Can't remember on that model, but many GM vehicles have more than one +12V constant wire in the harness / area.  Here a picture of a 2002 Silverado and while all the guides noted one +12V Red constant, there was a RED / White +12V constant available too.

Soldering is fun!