D-Max, SSB, MVP or TCode Pro can retrieve PINs

Go up there personally with the following

Print out a copy of the title/insurance card with the vin#

Print a copy of the owners drivers license

Get something in writing stating that the owner or you approve the request of pin code

Extra- an invoice with shop info - diagnosis etc.

Yeah it's a pain but you can try this otherwise your SOL

Newer Hondas/Acura - You can add a key with the Maxisys

All keys lost function requires a "Generated Pin Code" but this function is only available with the Honda Software, the Immobilizer module is only accessed with a Locksmith License. 

Toyotas/Lexus - You can add a key with the Maxi

All keys lost function can be done but requires a seed key conversion, I've only done this with Techstream. The Immobilizer will generate a 20 - digit seed key, you will then need to convert it to a 5-6 digit PIN number along with a 16 minute wait. I use vinlocks.com for the the seed key conversion.

Putting a used PCM you can do the obd wire jump to "resync" the immo.....turn the key off, place a small wire from pin 4 to pin 13 on the obd port, turn the key on....wait 30 mins (all lights on cluster will flash), after 30 mins turn key off, remove jumper and it should start.

Nissan/Infinit - I use my old 708....only up to 2012....2013 and newer the security system changes and requires the Consult 3

You can add keys through the NATS feature, steering/pin lock will sometimes require a conversion, I use bcm.keytechtools.com

GM- 30 min key learn manual way to program a new key or online subscription 10 min

Ford - add key parameter reset, pcm replacement requires 2 keys

Mazda - in/out codes I use autokeyprog.com

Hyundai/Kia - you add a key with maxi - code saving/transfer

All keys lost requires a pin from dealer