2008 Nissan Titan won't start.

Is it your code reader that won't read or a professional shop that will not read? Asking because your OBD port might have a communication issue due to wiring. Do you have a "no com" with multiple readers?

Is your security lite on while trying to start?

My 07 Nissan Titan is doing the same,crank wont start and cant read OBD..any ideas what could be the problem please..

currently have a 08 doing the same. no fix found but you can rule out the immobilizaer & fuel pump unless you already have one to put in. make sure you check and clean the tank for loose trash. ECM Relays were switched around/ also replaced later. All have been in vain and still crank with no start. Currently the Nissan Dealer is saying "I Donno" and the current Transmission Repair shop is trying their best to pinpoint as I have had no code other than a fuel evap code - which was already repaired. trying for some kind of fuse box for now - currently I'm at 1500.00 not including the 6 tows up this point when it leaves me stranded. Hope this will help the next person.

Did you ever find out the cause?

did you ever find the problem i put my code reader on to and it wont read either or start