Honda Acura NSX 1991 Service Manual page 908

Troubleshooting
Self-diagnosis indicator light C comes on: Indicates a problem in the sunlight sensor circuit. Use a digital multimeter
(KS-AHM-32-003) to check it.
The sunlight sensor is a light sensitive, variable resistance diode.
sity of the light increases.
Problem in the sunlight sensor
circuit.
Disconnect the 2-P connector
from the sunlight sensor.
I
Measure resistance between the
2 terminals in the sunlight sensor
as shown. ,
Is there approx. 7.5 kg?
Turn the ignition switch ON.
I
Measure voltage between GRN/
RED wire (+) terminal in the con-
nector and body ground.
Is there approx. 5 VI
Y E S
To page 22-21
22-20
The
N U
Replace sunlight sen
NO
Turn the ignition switch OFF.
Remove the climate control unit
(page 22-84). Leave the wire con-
To page 22-21
resistance of the diode increases as the inten-