Intermittent Failures
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.
The term intermittent failure means a system may have had a failure, but it is OK now. If the IMA system indicator on the dash does not come on, check for poor connections or loose terminals at all connectors related to the circuit you are troubleshooting. If the IMA system indicator was on but then went off, the original problem may have been intermittent.