The ES on my 2005 Rancher doesn't always work, it had a dead battery and I replaced it and am still having a problem.
The gear indicator is flashing a code I assume what ever gear it is in. Blinks 3 times pauses and blinks three times and pauses. Sometimes it starts blinking as soon as the key is turned on other times you can start it shift into gear and then it starts blinking.
At any rate when it is blinking you can't shift to a different gear.
What code is three blinks?