NISSAN 2013 LEAF - Owner's Manual - Manual (Page 85)

When not charging
None of the lights are illuminated when the Li-ion
battery and 12-volt battery are not charging.
EVSE (ELECTRIC VEHICLE SUPPLY
EQUIPMENT) CONTROL BOX
INDICATOR LIGHT
When a trickle charge is being performed, the
charging status is shown by the indicator light
that is on the EVSE (Electric Vehicle Supply
Equipment) control box.
An indicator light also indicates if there is a EVSE
(Electric Vehicle Supply Equipment) malfunction.
CH-36 Charging