avital 4103 rear defrost wiring

Hello, I just had an Avital 4103 remote start installed on a 2009 Cobalt and the installer tells me the rear defroster cannot be connected without an additional relay and that the remote trunk release feature will then be sacrificed  Hope someone can confirm this is incorrect and tell us it's done.  thanks

Your installer is mistaken. Read on... You can view the Avital's manual here. On page 48 is half of the wiring pinout. I can't think of any reason why your installer would have used something other than the "RED / White (-) 200ma channel 2" output for the trunk release, since it's designed primarily as a trunk release output. For the rear window defogger, he'd use the "Blue/White 2nd status output/defogger" wire. This could be connected in one of 3 ways: 1. Directly to a wire from the defogger switch which goes to ground momentarily when the switch is pressed. 2. Directly to a wire from the climate control panel(if the defogger switch is integrated into it) or the defogger relay which activates the relay and stays at ground for as long as the defogger's active. 3. To an add-on relay which powers the high current wire going to the defogger grid itself. Information on programming the defogger output wire(Menu 2, Option 8) is found from pages 32 to 40 of the PDF manual. For method 1 of connection that I've just stated, program the output to "pulsed". For methods 2 or 3 program it to "latched".C Renner's Auto Electronix

My service is cheap, quick, and good - pick any two

Thanks, this is exactly what I thought since I had already seen the wiring diagram and saw separate connections for the trunk release the the rear defroster..  I expected that they would have hooked this up, why have the remote start if you can't melt the ice? 

Honestly I don't know anyone who does it unless asked, for a couple reasons. First, many remote starts don't have the convenient dedicated defroster output that the Avital has. Second, and feel free to check out the "Vehicle Wiring" link to see for yourself what I mean, unless the shop is paying big $$$ for ALLDATA or Mitchell they don't have a wire color or location for the defroster. So the installer has to figure the circuit out on his own, which takes time. I've done enough defroster hookups that it's not hard but I usually charge extra to make up for the time.C Renner's Auto Electronix

My service is cheap, quick, and good - pick any two

the ignition lock and unlock are in menu 1 options 2 and 3If i Can't Install it    I Don't need it   Joe

the locks would have to be tied into the avital system    if they are add on there should be 2 relays they can tie into for te locks to workIf i Can't Install it    I Don't need it   Joe

if the locks work with the remote then they should be able to change those settings to make it do what you wantIf i Can't Install it    I Don't need it   Joe