I received an "Engine System Malfunction" warning on my 2016 CX-9. The first time I took it to the dealer they told me it was a know TSB issue so they re-flashed the engine management software and it would be fixed. Less than three weeks later, the same thing happened again. This time, the dealer said it was my battery and recommended replacing it "We can't evaluate the engine if the voltages are too low." The battery was replaced and I'm now wondering if the problem has been corrected.
While I don't disagree with the battery diagnosis, I'm wondering if there isn't a specific error code for battery problem, rather than a "Engine System Malfunction." Has anyone else had this problem before?
While I don't disagree with the battery diagnosis, I'm wondering if there isn't a specific error code for battery problem, rather than a "Engine System Malfunction." Has anyone else had this problem before?