Hi folks, Has anyone had ECU-related issues with their Renegade? My wife has a 2016 75th Anniversary Renegade (1.4L turbo, manual transmission). A couple weeks ago the Malfunction Indicator Light (check engine) on the dash lit up. I had the code checked and it said the knock sensor was malfunctioning. I had it replaced, had the code wiped, and a couple days later the light came on again. I took it in again and the code still read that the knock sensor was having an issue. The mechanic (indie, not a dealer) checked the knock sensor and the harness/wiring and it all seemed to be working, so he came to the conclusion that the ECU is bad and needs to be replaced because it's not communicating with the sensor properly. I've never dealt with ECU issues on a vehicle before, so I have no prior experience with it. Does it make sense that he'd reach this conclusion this way? Are there tests that can be done to check for sure that the ECU is bad or do you just reach that conclusion when you get codes for parts that are not broken? I called one of the dealers and the gentleman I spoke with said that it might need a software update, but the mechanic said updates don't usually fix an issue like that. I'm not sure who to believe in this case, as I've have negative experience with both dealers and indie mechanics in the past. We moved to Los Angeles a few years back and I have yet to find a mechanic I trust to work on the Renegade. Any insight is appreciated. I just want to make sure I'm doing my due diligence before going ahead with a repair that's going to set me back a good chunk of change... Thanks!