Honda Acura NSX 1991, Service Manual

Page: 783 / 1420

Troubleshooting
Troubleshooting Flowchart (cont’d)
Problem code 2-1: Steering angle sensor system.
NOTE: The TCS control unit performs the
self-dia nosis for the steering angle sensor when the average speed of
the front two wheels exceeds 16 km/hr. The TCS indicator light comes on if the yaw rate is generated and the
steering angle signal that corresponds to this yaw rate is not input when the steering wheel is turned while there
is no input from the STOP (brake light signal) and PARK (Parking brake signal).
Start the engine.
1 .
Push the TCS switch 3
times
within three seconds.
2 .
the steering wheel slowly
from left to right more than 1.5
turns.
3 .
Push the TCS switch 2 times
within 3 seconds.
4.
Return the steering wheel to the
left side slowly, check the num-
ber of times the
indicator
light flashes after the wheel has
moved approximately one turn.
\
NOTE:
Always maintain the same number of rotations.
Step 1 to 4 are the steering angle sensor check proce-
dures for actual operating condition. This will
be called the “steering anlge sensor system check”
in the following sections.
NOTE:
Start checking after the steering wheel moves at least
1.5 turns from the right to the left.
Turn the steering wheel slowly, no faster than one turn
in four seconds.
NOTE: Always maintain the same number of rotations.
Does the light flash 5 times 7
NOTE:
Start the check from the beginning when the steer-
ing wheel moves at least one turn from the left to the
right.
Turn the steering wheel slowly, no faster than one turn
in four seconds.
The tire pressure is incorrect or
tires with an incorrect diameter
sensor is OK.
are installed. The angle
Measure the voltage between the
View from terminal side.
W I R E
LT
Is there approximately
Y E S
N O
page 19-97)
page
19-96