The Best 2017 Nissan Armada Check Engine Light Ideas. The most common reason is a problem with the ecu. Web when your nissan check engine light stays on, it means the onboard diagnostic (obd) system has detected a malfunction with the way the engine is running, a problem with the emission system, or in some cases, it can indicate a transmission problem.

This indicates that the bsw is operational. Web here are five indicators that a check engine light means you should have your nissan serviced immediately: Web just a tutorial.if you haven't already, please subscribe to this channel and if any of the content has helped you, please give me a thumbs up.