avital 2101l with 99 suzuki vitara

I am getting ready to install an Avital 2101L Keyless entry unit in a 1999 Suzuki Vitara and I want to make sure that I understand it correctly. I assume that I need to connect the 2101L's LOCK #30 COMMON OUTPUT to chassis Ground and the LOCK #87 NORMALLY OPEN to the Pink wire from the door switch and then do essentially the same think with the UNLOCK circuit except use the Pink/Green wire. Is this correct? Thanks.

Here's a link to a better picture of the wiring diagram http://... VitaraDoorLock_zps9a1260b7.jpg

Not quite. PURPLE / black and purple to ground. GREEN/ black to lock wire (pink). Blue/black to unlock wire (pink/green) WHITE/ black and BROWN / black not used.

Thanks, Howie. Out of curiosity, why is it better to hook the inputs to ground rather than the commons? From a logic standpoint, it would seem that either way should work.

The definition isn't intuitive, I'd make the same mistake if I didn't know the colours. I'd treat purple and PURPLE / black as Common input. Blue/black and green black as lock/unlock Normally open or NC. BROWN / black and WHITE/ black as Normally closed or NC. Thus Common = 30. NO = 87. NC = 87a.