Hi.
Use the multimeter to check the timer contacts.
Set the timer for TIMED REGULAR and with unit unplugged check the continuity between contacts GY-WB, BK-BU, T-W.
They all should have continuity. If not - replace the timer
Part number: 3397273 
Here are the breakdown diagrams and
http://cdn.appliancepartspros.com/im...29233726_2.gif
Post the results.
Simon.