Honda Civic Service Manual page 1657

Ceiling Light Test
1. Turn the light switch OFF
2.
Pry off the lens.
3.
Remove the two mounting nuts (or a bolt) from the
housing, then remove the housing.
4.
Disconnect the connector{s) from the housing.
5.
Check for continuity between the terminals in each
switch position according to the table.
With moonroof:
3P CONNECTOR
\
rermrnal
Position \
1
2
or
2'
3
or
3'
OFF
o-
/a\
- o
\7
MIDDLE
o-
,.\
--o
\:/
ON
o-
--o
\:/
2 3 - 1 8 5
q,
Without moonroot:
Coupe/Hatchback:
BULB (5 WI
/
2'
4
1
3