No diagnosis yet. I'll have to take it into the shop and have my guy check out the system. But there are other issues. The battery shows 12.50 volts at rest which means it's near the end of its life, the front bumper needs refinishing, the tires need replacement, the auto transmission is getting a bit dodgy starting off and sometimes racing before shifting into a higher gear and the finish needs a good compounding and polishing. On the plus side, the V6 engine is strong, burns no oil and still returns about 25 mpg. Probably the best engine in any car I ever had - and that's a lot of cars. So it comes down to this. Do I sink any more $$ into this or move on. This is wife's car. Probably wind up with something coming off lease. Perhaps another Accord with backup camera. Good safety feature. Some of the other crap like lane keeping assist is just another thing to go wrong and not needed. We're not SUV fans.