07 caddy escalsade security

itried to install a viper 350 1way into this vehicle and arent having much luck with it. the guy wants everything hidden so his (soon to be ex) wife cant tell there is one installed. i tried talking the guy into just a starter kill but if he wants to spend the $ then hey. now im wishing i never touched it. i only had a short amount of time since he had to keep it all secret but noticed a few things on the vehicle that threw me for a loop.

as for the starter kill i hooked up a relay for it and used the yllw/blk wire from the top plug on the ECU (ecu located behind driver headlight). all other wires that tested as a starter wire would still allow truck to start even if it were cut.

as far as door locks i tried to 5 wire the purple and tan but i get nothing. i hear the relays clicking but no response from door locks.

and the led doesnt even blink. he wants it to be left unplugged but when it is plugged up i cant get anything from it. should i have just used the module for the vehicle or is there a way to integrate without it?

READ........ I don't think you are following the correct wireing info? I could be wrong.

To do keyless on this rig WITHOUT a module of any kind is more than a headache....

i did read it. thats the prob. i see that some people have down to get a module and some people are 5 wiring. i figured im good with a relay so why waste the $. now i see that i will have to spend the cash for the module which im not to excited about. so i take it no one has successfully done door locks without it?

one other thing... the vehical has factory disarm wire in the door but there is no fac disarm output on the viper itself. any suggestions?

its aslow day and i am finding alot of info on this thing since i have nothing but time. i wanna share what i found incase it helps any1 else in the future. for those of us who dont have access to directech tip 1607 this is it. (this works for 07 yukon/tahoe/escalade/ lucerne & suburban (wire colors may vary) front doors use a type C system and rear uses pos trigger to lock and ground to unlock.

You must do this in both front doors in order to allow them to work. the wires are in the door  tan and purple in dr door and tan and gry/blk in passenger door. im going to explain it as best i can so i hope this helps

cut you tan wire and connect your DDM side to the anode side of a diode and that goes to 86 on you relay. Connect your positive lock/unlock output from your alrm and diode isolate it as well (you should have 2 diodes on 86) .Connect the acuator side to 30. give 87 12v fused. 85 and 87a go to ground .       now cut your purple wire and do the same. now go to the passenger door and do it to the tan and gry/blk like we instructed earlier

incase you wanna do the rear locks now... find and tap (dont cut these) the white wire (unlock) at the BCM and the lt blue wire (lock((should be pin 7 and 9) connect one to 30 on a relay and the other to 30 on a second relay. tap your lock/unlock outputs to86 of the proper relay. the unlock relay should getground at 85 and 87 while the lock relay gets grounded on 85 only. 87 will get 12v on the lock relay. nothing on 87a

Thank You......

If memory serves me right those vehicles WILL start even though the starter wire is cut.  As long as the ECU sees the accessory drop and ignition hold, the vehicle will start, regardless if the starter wire is cut or not.