Honda Acura NSX 1991 Service Manual page 1171

Remove the lighting relay from the main relay box.
There should be continuity between the C and D ter-
minals.
There should be continuity between the A and B ter-
minals when the battery is connected to C and D ter-
minals.
There should be no continuity when the battery is
disconnected.
D
B
t
A C
Remove the dimmer relay from the main relay box.
There should be continuity between the F and E ter-
minals and between the B and C terminals.
There should be continuity between the A and C ter-
minals when the battery is connected to the E and
F terminals.
There should be no continuity when the battery is
disconnected.
F A B