When the system shorts, use a test light to determine the short, hook one end of the test light to the battery terminal (test negative to ground and positive to power) and use the probe to ground or power, if the connection is shorted the test light will illuminate. Do not test positive to ground, it will no tell you were the short is, it just tells of a circuit functionality.
When the system is used the electrical connection is tested, It sounds like a battery cable connection is corroded or the cable itself is bad. Please check and get back to us.
Monday, June 17th, 2013 AT 9:32 AM