G35 Fault Message: DIY Fix or Mechanic Visit Needed?

I had a similar issue with my '07 Infiniti M35 last year. The central fault memory gave me trouble too turned out it was connected to a faulty ECU sensor module. My mechanic found multiple stored fault codes that kept reappearing even after clearing them. The repair involved replacing the main ECU sensor and reprogramming the system. It wasn't a quick fix, took them about two days to properly diagnose and repair. This was definitely a serious electrical issue that needed immediate attention since it could affect other systems. If you're getting persistent fault messages, I'd suggest going to an Infiniti specialist or a shop that's experienced with these models' electrical systems. They'll need proper diagnostic equipment to pinpoint the exact problem. From my experience, these fault memory issues often indicate a deeper electrical problem that needs professional attention.

Thanks for sharing your experience! That's really helpful to know about the ECU sensor being the culprit. Do you remember roughly how much you ended up paying for the whole repair? Also, has everything been running smoothly since then, or have you noticed any other electrical quirks?

Hey there! Happy to give you an update on my M35 situation. Since getting it fixed last year, it's been running like a charm no more electrical gremlins! The central fault memory lock issue is completely gone after the repair. The total bill came to 625€ for replacing the faulty ECU sensor module and all the programming work. Yeah, it wasn't cheap, but honestly, it was worth every penny to get it sorted properly. My car's been absolutely solid since then no warning messages, no stored faults, nothing. I actually feel pretty lucky that my mechanic caught it when they did, because these things can snowball into bigger problems if left unchecked. Trust me, if you're dealing with similar symptoms, better get it checked out by someone who knows these Infinitis inside out. The peace of mind is totally worth it! Let me know if you need any other details about the repair or if you want the contact info for my mechanic. They really knew their stuff with these electrical issues.

I really appreciate all the detailed info! Just got back from the mechanic today actually. You were spot on about the ECU sensor that's exactly what it was! Ended up paying around 580€, which wasn't as bad as I was expecting after hearing your experience. The funny thing is, they found a couple of loose connections while they were in there too. The mechanic I went to specializes in Japanese cars, and they were super thorough. Took them about a day and a half to fix everything, but the car's running so much better now. No more annoying fault messages popping up! Honestly, I'm just relieved it's sorted. Was worried it might've been something way more serious. Sometimes these electrical issues can be such a headache, but looks like we both lucked out with relatively straightforward fixes. Thanks again for helping me know what to expect definitely made the whole process less stressful!