Honda Acura NSX 1991 Service Manual page 1160

Lighting System
-Retractable Headlight Control Unit Input Test
Remove the bulkhead panels and disconnect the 18-P
connector from the control unit.
Make the following input tests at the harness pins.
NOTE:
Recheck the connections between the 13-P connector
l
and control unit. then replace the control unit if all in-
put tests prove OK.
Several different wires have the same color.
l
They have been given a number suffix to distinguish
them (for example RED/YELl and REDNEL4 are not the
same).
BULKHEAD PANEL
23-174
REAR BULKHEAD
18-P CONNECTOR
I
Y E L
\
CONTROL UNIT
View
from wire side