Honda Acura NSX 1991 Service Manual page 241

(From page 1 I-64)
Check for continuity on WHTI
w i r e b e t -
ween Fl or F3* and 22P connec-
tor of the AIT control unit.
Does continuity exist?
Y E S
Substitute a known-good A/T
control unit and recheck.
Does Check Engine light indicate
CODE 30 or 31?
Y E S
and recheck. If symptomlindica-
Repair open in WHTl
N O
G R N o r WHT/RED+
wire between ECU (Fl
or F3*) and the AIT
control unit.
N O
Replace the original
II-65