Honda Acura NSX 1991 Service Manual page 1234

Power Door Mirrors
NOTE: Before testing, remove the left door trim panel,
then disconnect all of the connectors from the door trim
panel.
10-P CONNECTOR
View from wire side
Mirror Test:
NOTE: Check the No. 4 (15A) fuse in the dash fuse
box before testing.
One or both inoperative:
1 . Check for voltage between the YEL/BLKl terminal
and body ground with the ignition switch ON.
There should be battery voltage.
If there is no voltage, check for an open in the
l
23-250
2. Check for continuity between the BLK teminal and
body ground.
There should be continuity.
If there is no continuity, check for:
l
Left inoperative:
Connect the YEL/BLK* terminal to the YEL/RED terminal
and the YELAWHT (or YELIBLK') terminal to the body
ground with jumper wires.
The left mirror should tilt down (or swing left) when the
ignitin switch is turned ON.
remove the left door trim panel and check for open
in the YELANHT (or YELIBLK') wire between the left
door mirror and switch.
If the wire is OK, check the left door mirror.
the YELIRED wire.
switch.
Right inoperative:
Connect the YEL/BLKl terminal to the BLU/GRN termi-
nal and the YELNVHT (or BLlJ/BLK) teminal to the body
ground with jumper wires.
The right mirror should tilt down (or swing left) when the
ignition switch is turned ON.
remove the right door trim panel and check for open
in the YELANHT or BLU/BLK) wire between the right
door mirror and the switch.
If the wire is OK, check the right door mirror.
l If the mirror neither tilts down nor swings left, repair
the BLU/GRN wire.
switch.