Honda Acura NSX 1991 Service Manual page 1281

Test
No. Wire
Under all conditions.
1 BLK
Ignition switch ON and
main switch ON.
2 LT GRN
RESUME button pushed.
LT GRNI
3
BLK
SET button pushed.
LT GRNI
4
RED
M/T: Clutch pedal
pushed.
5 A/T: Shift lever in 2, 3
or D.
Start the engine.
6 GRN
Ignition switch ON and
main switch ON. Raise
7
the rear of the car
rotate one wheel slowly.
Ignition switch ON, main
switch ON and brake
8 GRY
pedal pushed, then
released.
Brake pedal pushed,
then relelased.
9
Ignition switch ON.
Connect the
I I BRN
positive to the BRN
terminal and negative to
1 2 BLU
the BLU terminal.
Connect the battery
positive to the BRNI
WHT
1 3
WHT terminal and nega-
tive to ground.
condition Test: desired
Check for continuity to
ground: should be continuity.
Check for voltage to ground:
should be battery voltage.
Ground each
Horns should sound as the
switch is pushed.
Check for continuity to
ground: should be continuity.
Check for voltage to ground:
should be battery voltage.
Check for voltage between the
LT GRN @ and YEL/RED 0
terminals: should be
0-5-O-5 V repeatedly.
Check for voltage to ground:
should be 0 V with the pedal
pushed and battery voltage
with the pedal released.
Check for voltage to ground:
should be battery voltage with
the pedal pushed, and 0 V
with the pedal released.
Attach to ground: Indicator
light in the gauge assembly
comes on.
battery Check the operation of the ac-
tuator motor: should be able
to hear motor.
Check the operation of the
magnetic clutch: clutch should
click and output link should be
locked.
Possible cause (if result is not obtained)
result
Poor ground (G401, G402).
l
An open in the wire.
l
Blown No. 5 (IOA) fuse.
l
Faulty main switch.
l
An open in the LT GRN or YEL
l
wire.
Blown No. 45 (2OA)
terminal:
l
Faulty SET/RESUME switch.
l
Faulty cable reel.
l
An open in the WHTIGRN,
l
BLUIRED, LT GRNIBLK or
LT GRN/RED wire.
Faulty or misadjusted clutch
l
switch (M/T).
Faulty shift position console
l
switch (A/T).
Poor ground (G401, G402).
l
An open in the wire.
l
Faulty ignition system or PGM-FI
l
ECU.
An open in the wire.
l
Faulty speed sensor.
l
An open in the wire.
l
Faulty brake light switch.
l
An open in the GRY or LT GRN
l
wire.
Faulty brake light switch.
l
An open in the wire.
l
Blown bulb.
l
Blown No. 5 (IOA) fuse.
l
Faulty dimming circuit in the
l
gauge assembly.
An open in the wire.
l
Faulty actuator.
l
An open in the wire
l
Faulty actuator.
l
An open in the wire.
l
Poor ground (G302).
l
fuse.