Honda Acura NSX 1991 Service Manual page 913

From page 22-24
Y E S
Remove the control unit (page
22-841.
Substitute a know-good control
unit and recheck. if symptomlindi-
cation goes away, replace the
original control unit.
From page 22-24
From the back of the 14-P con-
nector, measure voltage bet-
ween No.3 (+) terminal and
No. 14 C-1 terminal.
NO
Disconnect 14-P connector from
the control unit.
Substitute a know-good control
unit and recheck. If symptomfindi-
cation goes away, replace the
original control unit.
Repair open in LT GRN
wire between control
unit (No.31 and evapo-
r a t o r t e m p e r a t u r e
sensor.
Repair short in LT GRN
wire between control
unit (No.31 and evapo-
r a t o r t e m p e r a t u r e
sensor.