Honda Acura NSX 1991 Service Manual page 792

Problem code 3-2: Engine speed signal (NEP).
Remove the ALB 2.3 (20AI fuse
for more than 3 seconds to reset
TCS control unit.
Start the engine.
Y E S
Measure the voltage between the
TCS control unit No. 41 terminal
and body ground.
Is there approximately 6.0 V?
Y E S
l
Check for poor connections or
Disconnect the 12-P connector
from the TCS control unit, the
12-P connector from the PGM-FI
ECU and the 26-P connector from
the A/T control unit.
I
Check for continuity between the
TCS control unit No. 41 terminal
tween the TCS control unit, PGM-
intermittent failure.
Check for poor connections or
loose wires.
1
NOTE:
l
Use the 10 V range or a similar range in the ana-
log tester.
l
Check with the engine idling and warmed-up.
N O
N O
12-P CONNECTOR
View from terminal side.
12-P CONNECTOR
View from terminal side.
WIRE