Symptom Troubleshooting Versus DTC Troubleshooting
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
Some symptoms will not set the diagnostic trouble codes (DTCs) or cause the D indicator to blink. If the MIL was reported on or the D indicator has been blinking, check for the DTCs. If the vehicle has an abnormal symptom, and there are no DTCs stored, do the symptom troubleshooting. Check the list of probable cause(s) for the symptom, in the sequence listed, until you find the problem.