Honda Acura NSX 1991 Service Manual page 806

(From page 19- 118)
Turn the ignition switch OFF.
Disconnect the 18-P connector
from the Anti-lock brake control
unit.
Measure the voltage between the
TCS control unit 20-P connector
N o . 7,9, 18 and 20 terminals and
body groF1
Is there approximately 5 V?
Y E S
Turn the ignition switch OFF.
Disconnect the 20-P connector
unit.
Check for continuity in the ORNl
RED, ORNIBLK,
wires between the
TCS control unit and the Anti-lock
brake control unit.
I
Is there continuity?
N O
trol unit and the Anti-lock brake
20-P CONNECTOR
I 2 3 4 5@/[6
0 I I 12 I3 l4&5116j,l7 18 I 9
View from terminal side.
View from terminal side.
NO
Turn the ignition switch OFF.
Disconnect the 20-P connector
Is there continuity?
I
Repair short-circuit in the ORNl
l Substitute a known-good ALB
control unit and recheck
Check for poor connections or
l
loose wires.
I
WIRE (FRP)
7 8
\
GRENVHT
WIRE
L
l Substitute a known-
good control unit
N O
and recheck.
Check for poor con-
l
wires.
WIRE
WIRE
1 B -P CONfiECTOR
19-l 19