Seeking Advice on Troubleshooting Ignition Starter Switch Issues on 2015 Nissan Sunny

Hey there,! I had a relatable snag with my 2013 Nissan Sentra, pretty similar to your Sunny. I'm no mechanic, just a regular guy with some car experience. My ignition wouldn't kick in, kinda like what you're experiencing. Turned out it was a defective wiring harness, not the starter switch. Visited my trusted workshop, they diagnosed the issue, and fixed it up for me. Cost me about 95 Euro, well worth it to avoid the headaches. Before I can get into specifics though, could you tell me if your Sunny has any modifications or any prior engine related problems? More details could help me to give a more precise advice. Take care!

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Hey, much appreciated for sharing your experience. My Sunny is pretty much all stock with no modifications. Apart from this current ignition issue, I haven't run into any engine-related problems until now. The last service was done not too long ago, and the mileage is around 23213 KM. Hope this extra info helps you give a more accurate advice. Cheers!

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Hey again,! No problem, glad to help out. From my own experience with the Sentra, which shares many components with your Sunny, no modifications and relatively low mileage should rule out quite a few possible problems. Before you rush to the workshop though, just to rule out the simplest possibilities, have you checked the car battery? It's not rare for a dying battery to cause ignition issues... Just a thought. If the battery test comes back okay, then it's time to look into the ignition system. My Sentra's ignition issue was caused by a faulty wiring harness. But in your case, if it's not the ignition switch as you initially thought, it could be a failing ignition coil or an issue with the engine control unit (ECU). Worth a check. If you are not comfortable doing these checks yourself, I would suggest taking your car to a trusted professional to ensure the right diagnostic process is followed. Hope this helps you with your problem. Keep me posted how it goes, alright? Cheers!

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Hey there,! Good point on the battery - I'll definitely have that checked out. I hadn't really considered the ignition coil or the ECU being potential issues, so that's useful insight right there. This has been immensely helpful. I'll follow your advice and head over to my usual mechanic for a proper diagnosis. Thanks again for lending your knowledge. Will sure keep you updated on how things turn out. Cheers!

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