Honda HRV Overheating Error

Greetings. The symptoms you describe resemble an issue I encountered previously with my 2014 Opel Insignia, which also presented with error codes and overheating. In my case, the bypass valve malfunction was a consequential error, stemming from a failure within the vacuum system. Have you observed any indications of a coolant leak or power loss, or perhaps experienced engine stalling? The root cause may lie elsewhere in the system.

Thanks for the quick response! Coolant levels seem fine, but I have noticed a bit of power loss lately, especially when accelerating. How did you eventually figure out it was the vacuum system on your Insignia?

Acknowledged. The diagnostic process involved a systematic evaluation of the vacuum lines and associated components for leaks and integrity. Given the mileage on your HRV (180644 km), a thorough inspection of the vacuum system is advisable. However, without access to specialized diagnostic equipment, pinpointing the precise fault location can be challenging. Based on my experience, I recommend seeking counsel from a qualified technician to perform a comprehensive assessment of the engine's control system. It could prevent consequential damage.

Okay, that's really helpful. I appreciate you sharing your experience. Took it to a workshop and you were spot on. Turns out the bypass valve issue was indeed a ghost – a faulty sensor was throwing everything off. Repair cost was literally zero because it was just a misread, but they reset the system. Thanks again!