So when I bought my XC70 it came with an Astro remote start, but no fob (lost). Knowing how the ignition system on these cars work I had no idea how they managed to put a command start on without shoving a key up in the dash which according to the owner they did not. The guy had said he lost one of the keys, turned out the installation shop DID in fact shove it up in the dash... the guy who made me a new remote discovered that nice surprise. Anyways...

So command start works and locking from the Astro fob works, but not unlock. The car is 100% getting the unlock signal because when you push the button the headlights flash but doors do not unlock. The key guy checked out the Astro box and it's configured to unlock and has voltage on the right wires, so is this a Volvo thing that I just can't get around or what? All of the unlock buttons work in the car, my installer said there might be a short to the driver's door unlock button but wouldn't it not work if that were the case?