One problem related to check engine light on has been reported for the 2004 Nissan Titan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Nissan Titan based on all problems reported for the 2004 Titan.
I went in to get a truck on July 11th. . . They had to get the truck started by jumping the battery that they said would be replaced. While rushing us without offering a test drive insurring the truck was sound and mechanically stable. We then drove off in the 2004 Nissan Titan and all the lights on the dash came on shortly after. Vrd abs and brake as well as check engine light. The brakes then went out on us as we reached out home. The next day we informed them of what happened, they said it was just water on the brakes to give it a day and see what it does. It happened again and when we took it back they said the mechanic was gone to come back. Thats when we noticed the cara registration was for another vehicle and started to wonder if they had taken the car to emmisions at all. Check engine light was om since we left the lot. Before our first payment I spent $900 on parts had roadside called 4 times and replaced the battery. The truck didnt last to the first payment. Completely lost all braking power. This truck was taken to a mechanic that told us it would not have passed emissions when we got it because the history on the check engine light showed it was only cleared and not addressed.