Two problems related to software have been reported for the 2007 Honda Accord. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Honda Accord based on all problems reported for the 2007 Accord.
First of all I'm really surprised to find out that Honda does not have a recall for the a pcm - ecm power relay. This should be a safety issue. Basically while driving my car if I have the heat on the vehicle will turn off when I slow down or come to a stop. If I flash my high beams the car would shut off (while at a stop). Finally I took my car to a friend and their auto link tester read p0685-ecm- pcm. He told me to take it to a dealership which I did and had to pay for a diagnostic and the agent there inform me that the software needed to be updated. Now for 2 months I have been driving my vehicle that I have own for over 10 years, and every now and then it turns off on me when I'm at a red light, stop sign and sometimes when I slow down. There has been 2 times that I was almost hit from behind because the vehicle turns off. For years I have always purchased Honda Accord but with them not owning up to things that are happening with their vehicles as far a safety issue I might have to look into purchasing another make and model when I purchase my next vehicle. Honda needs to do a recall on these model of Accords so people can their vehicle into a dealership to have their electrical software updated.
Check engine light went on and off a few times, took it to autocheck and found a code. Took it to dealer, they could not locate the code and claimed there is no issue they can find, come back when it happens again. Few weeks later, the check engine light came again in the evening, and now with other problems, the whole electric system including lights, radio etc started dancing on and off, abs light came on and off. Happened for a few minutes and then everything went smooth. I took the car back to dealership and they claim the code p0685 was found and there was a software update for the pcm and they applied that update. I asked why was there no intimation about it and the response was that it was not considered as one of the critical updates. With the experience I had, the way things were happening in that 2-3 minutes of electric system dance, anything could have gone wrong with the car. There should be a recall notice sent for this update.