Honda Acura NSX 1991 Service Manual page 788

(From page 19-101)
Raise the car and support it with
s a f e t y s t a n d s (ye s e c t i o n 1).
Start the engine
Shift the transmission into 2nd.
and press the accelerator until a
Measure the voltage between the
TCS control unit No. 1 terminal
and the body ground.
Is there OV? (TCS in operation.)
Y E S
Turn the ignition switch OFF.
I
Disconnect the 20-P connector
from the TCS control unit and the
Check for continuity in the GRY
wire between the TCS control unit
a n d
I
Is there continuity?
(From page 19-l 01)
I
Check for continuity between the
Is there continuity?
I
Y E S
Repair short in the GRY wire be-
tween the TCS control unit and
PGM-FI ECU.
l Substitute a known-good con-
N O
trol unit and recheck.
l Check for poor connections or
loose wires.
the PGM-FI test har-
NOTE: Use
P G M - F I TEST HARNESS
I
Repair open in the GRY wire be-
tween the TCS control unit and
PGM-FI ECU.
1 t e r m i n a l 1
l Substitute a known-good TCS
control unit and recheck.
l Check for poor connections or
loose wires.
1
View from terminal side.
20-P CONNECTOR
I
CONNECTOR