Quote Originally Posted by portal pat View Post
Took the truck to professionals last week. No fault codes came up, all were subsequently reset. Further delving discovered that the glow relay was not activating when engine was warm. They managed to get it apart, despite it not being a serviceable unit, and found a wire broken going to the coil in the relay. Soldered up and all good!! Important to note that glow plug indicator light gets its power from a different source to what goes to the plugs !
Thanks for getting back to us mate.

There's been a few relay issues from people lately, another thread here recently was the battery relay and it took Nissan techs a week to figure it out.

Important to note that glow plug indicator light gets its power from a different source to what goes to the plugs !
Interesting...Not the best idea when trying to isolate problems.