gr8spinner said:
If it was a burned bulb (I hope it's that easy) wouldn't it just go rapid and never go back to normal till the bulb was changed?
You would think so. Might as well check and change the bulbs first, or swap them right to left.
If only one or two stop working then it is probably the bulbs. If ALL the turn signals on ONE side stop working at the same time, then you might suspect the wire from the ICE controller. If they stop working of BOTH sides, look after the fuse. There aren't many other options. There are two wires that come out of the ICE, one for each side. Then the connections fan out to the various bulbs. If at least one bulb is working on a side, it usually means everything else is OK.
Left turn signal usually goes first, because you tend to use that light more while waiting for traffic to make a left.