Acura NSX 1991 Manual page 831

Main Menu Table of Contents
Combination Light/Turn Signal Switch Test
1. Remove the dashboard lower cover (see page 23-182).
2. Disconnect the 18-P connector from the floor wire
harness.
3. Check for continuity between the terminals, in each
switch position, according to the table.
18-P CONNECTOR
View from wire side
Headlight/Dimmer/Passing Switch
Turn Signal Switch