Honda Acura NSX 1991 Service Manual page 249

- L e s s t h a n 1 V ?~I
(From page 11-72)
c3 (+)
A/C switch ON.
A26 b-4
I
I
Repair open in BLUl
Is voltage less than 1 V?
I BLK wire between ECU
Air conditioning signal is OK.
Y E S
Substitute a known-good ECU
and recheck. If symptom/indica-
tion goas away, replace the orig-
inal ECU.