G35 Electrical Chaos: Control Module Mystery Needs Solving

I had a similar issue with my 2007 Infiniti M35. Last month, my car showed the same symptoms nav system failure, unusual warning lights, and general electrical chaos. Took it to my trusted mechanic who diagnosed it as a faulty cable connection to the main control unit that was disrupting the CAN-BUS communication system. The problem ended up being a corroded connector between the main control module and the vehicle's BUS system. Had similar mileage too, around 120K km. It wasn't just a simple fix-it-yourself job required specialized diagnostic equipment to properly identify which connection was failing and repair it. Got it fixed at an Infiniti specialist shop (not the dealer). Definitely recommend finding someone who specifically knows Infiniti electrical systems, as these issues can be tricky to diagnose correctly. The repair itself wasn't particularly complex once they found the problem, but it was critical to get it done right to prevent further electrical issues. This was a serious issue that needed immediate attention since it affected multiple vehicle systems. Don't wait too long to get it checked out.

Hey, had pretty much the exact same thing happen with my Infiniti too! Can't tell you how relieved I am to hear someone else went through this. Your solution sounds spot on especially about the corroded connector being the culprit. Mind if I ask how much the repair set you back? Also, has everything been running smooth since the fix, or have you noticed any other quirks pop up? Would really help me get an idea of what I'm in for. Thanks for sharing your experience!

Hey again! Glad I could help out with my experience. Since getting it fixed at my Infiniti specialist, my M35 has been running perfectly no more electrical gremlins whatsoever! Everything's working as it should nav system, dash, the whole nine yards. The repair cost me 155€ to fix that faulty cable connection to the control unit. Honestly, it was worth every penny to get the BUS system communication working properly again. I've put about 3,000 km on it since the repair last month, and I haven't seen a single warning light or any other weird electrical issues pop up. It's like having a completely different car now in a good way! My mechanic really knew what they were doing with these Infiniti electrical systems. Trust me, once you get it sorted, you'll be so relieved. Just make sure you find someone who really knows these cars it makes all the difference. Let me know how it goes with yours!

you were absolutely right! Just got my G back from the shop yesterday, and I couldn't be happier. Found this Infiniti specialist across town guy knew exactly what he was talking about as soon as I mentioned the symptoms. Funny enough, my repair was pretty close to what you paid came to about 170€. The mechanic showed me the corroded connector when I picked up the car, and wow, it was in rough shape! He also gave the whole electrical system a once-over to make sure nothing else was going bad. Took it for a good long drive today, and everything's working perfectly now. Nav's back up, no more unusual warning lights, and the electrical system's behaving like it should. Such a relief after dealing with all those issues! Thanks again for sharing your experience really helped me feel confident about getting it fixed. Sometimes it just takes finding the right mechanic who knows what they're doing. Definitely keeping this shop's number for future reference!