Honda S2000 Service Manual page 540

Service Check Signal Circuit Method:
NOTE: Use this procedure when the PGM Tester
software does not match the yearlmodel vehicle you
are working on.
'1. With
the ignition switch OFF, connect the Honda
PGM tester (A) to the 16P data link connector (DLC)
(B) located under the dash on the passenger's side
of the vehicle.
4.
Whith the vehicle on the ground, set the front
wheels in the straight ahead driving position.
Short the SCS circuit to body ground using the
Honda PGM Tester.
Turn the steering wheel 45 degrees to the left from
the straight ahead driving position, and hold the
steering wheel in that position.
Turn the ignition switch ON (ll). The EPS indicator
comes on, then it goes off after 4 seconds.
Within 4 seconds after the EPS indicator goes off,
return the steering wheel to the straight ahead
driving position and release the steering wheel.
The EPS indicator comes on again 4 seconds after
releasing the steering wheel.
Within 4 seconds after the EPS indicator comes on,
turn the steering wheel 45 degrees to the left again
and hold it in that position.
The EPS indicator qoes off after 4 seconds.
5 .
7 .
8. Within 4 seconds afterthe EPS indicator goes off,
return the steering wheel to the straight ahead
driving position again and release the steering
wheel. The EPS indicator blinks twice 4 seconds
after releasing the steering wheel, indicating that
the DTC was erased.
NOTE: lf the EPS indicator does not blink twice, an
error was made in the procedure and the DTC was
not erased. Turn the ignition switch OFF, and
repeat the operation from the step 3.
9. Turn the ignition switch OFF within 5 seconds after
the EPS indicator blinks twice.
NOTE: lf the ignition switch is not turned OFF
within 5 seconds after the EPS indicator blinks, the
system will go to the memorizing mode of the
torque sensor neutral position. To avoid this, turn
the steering wheel 45 degrees to left from the
straight ahead driving position and turn the ignition
switch OFF. This will return the svstem to the alert
m o o e .
10. Disconnect the Honda PGM Tester from the DLC.
1 1 , Perform the DTC code output operation, and be
sure that the code has been erased.
EPS INDICATOB
STEEN {G
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