Twice in the last two days my Ford 5600 Diesel flashed its generator light at me. Once for a few seconds until I turned off the key and turned it back on... it is only the charging circuit.. did not turn off the engine... then this morning it just flashed at me...any ideas what would cause that ? It was very bright when it came on yesterday.... it has not done this in the past....has spent hours since with no flashing ......