So I've been trying to figure out how to go about this the cheapest way possible. I ended up using a local locksmith that was able to look up the key code and cut me 5 new keys for $65. The keys I supplied, I bought two genuine oem Nissan transponder keys and fobs and the other two were the cheap spares I had in hand. The 5th key was a generic non-transponder key for testing purposes to make sure it worked for my doors and ignition before the locksmith cut my new keys. I was able to program the 4 fobs via the Nissan recommended method. Transponder keys are done differently.
I have a Thinkscan Max TK909 from www.mythinkcar.com that I had bought a few years ago to help me diagnose my vehicle CELs. I turned it on looking to see if I had anything available on my tool to program my new keys, I didn't. After I ran updates on my diagnostic tool, I saw "IMMO Reset". Looked it up and inquired with the manufacturer since my manual made no mention of it and I'm sure it wasn't an available feature on my tool when I bought it a few years ago. Anyhow, manufacturer confirmed that "IMMO Reset" can program new keys and confirms it can do a 2008 Nissan Pathfinder, however, I still need a way to find the BCM 4 digit PIN to be able to register new keys. All OBD2 scanners with the "IMMO Reset" capability will require that PIN regardless of tool manufacturer.
I also found out that my BCM is an older version that uses NATS3 or NATS4 made by Visteon after tearing into the driver side lower dash area where the BCM is held onto by two 10 mm bolts, above and right of the gas pedal. My BCM Nissan PN: 284B0 ZP82A. I needed a BCM(5 characters) to PIN(4 digits) calculator. The BCM code is 5 characters long and my diagnostic tool was able to identify that. All I needed was a PIN calculator.
Scoured the Internet the last few days and I found a paid version and a free version. Unfortunately I had already paid for the paid version of $65 USD before I found a more simplistic free version minutes after
You can find the free Nissan PIN Code Calculator here https://www.u-obd.com/2017/12/22/nissan ... alculator/
Your anti-virus program may quarantine it like mine did, but it's just a false positive and put it on your exclusion/white list.
Once you have extracted the file, run it and put in your 5 character BCM PIN into the calculator. You're going to see Old and New Password. Old = Pre 2009 and New = Post 2009 vehicles. Use the password based on the year of your vehicle if you have the same BCM as I do. If you have a much newer BCM, this free calculator I found may not work for you and you'll have to find a different one possibly for NATS5 or NATS6 which there are a ton of youtube videos and forum discussions as well as other sites that are selling calculator tools.
Hope this helps some of you out. I went this route because Nissan wanted $265 to cut a key and program AND I had to get my Pathfinder towed to the dealership. Plus I had to buy a key and fob for $200 from them. The local locksmith where I had my keys cut had wanted $165 for one key, cut, no fob, and program, but at least they're mobile so they could have came to my house to do it.
I paid a little over $200 for two genuine transponder keys Nissan PN: H0564-ET000 and two genuine fobs Nissan PN: 28268-EA00A online shipped to me. Already had a diagnostic tool that was capable to program the new keys or I had a buddy that had one also if mine didn't have it or worked. Paid $65 for the calculator app, but could have saved that had I found the free calculator app first. Paid $65 for locksmith to look up the key code for my vehicle and cut 5 keys. $40 for a car "break-in" kit to break into my own vehicle to unlock the door. I came out ahead regardless of the other options that were available to me because now I have 4 keys and fobs that can be used to drive. 1 key to unlock car doors manually.
