Honda Acura NSX 1991 Service Manual page 451

Self-diagnosis D indicator light
blinks eight times.
Disconnect the 26P connector
from the control unit.
Turn the ignition switch ON.
Measure the voltage between the
A 3 a n d A 2 5
Is there voltage?
N O
Turn the ignition switch OFF.
Measure the resistance between
t h e A 3 a n d
Y E S
Disconnect the 2P connector from
the shift control solenoid valve as-
sembly.
Check for continuity between the
A 3 a n d A 2 5
terminals.
N O
Connect the 2P connector to the
shift control solenoid valve as-
sembly.
Check for loose control unit con-
Repair short to power
source in GRN/WHT
wire between the A3
terminal and shift con-
trol
solenoid valve B.
A 2 5
C h e c k f o r o p e n i n
w i r e b e -
tween the A3 terminal
N O
and the shift control
solenoid valve B. If wire
is OK, check the Shift
Control Solenoid Valve
B.
Repair short to ground
in GRN/WHT wire be-
Y E S
tween the A3 terminal
and the shift control
solenoid valve B.
NOTE: View from terminal side.
r
0 V?
r
0 O?
r
1
1