1 Battery discharge indicator
2 Display screen
3 Motor temperature indicator (viewable during initial key ON, self test and indicator 
functioning)
4 Battery retainer switch indicator (viewable during initial key ON, self test and indi-
cator functioning)
5 Enter or return key used to navigate in and out of menus, drive test outputs and 
select/input settings
6 Navigation keys (up, down, left and right arrow) used to scroll through menus
7 Operator improper sequence error indicator (viewable during initial key ON, self 
test and indicator functioning)
8 Service required indicator (viewable during initial key ON, self test and indicator 
functioning)