Honda Acura NSX 1991 Service Manual page 440

Symptom-to-Component Chart
8
Possible Cause
light
Blinks Disconnected lock-up control
l
solenoid valve A connector
. Short or open in lock-up control
solenoid valve A wire
. Faulty lock-up control solenoid
valve A
Blinks Disconnected lock-up control
l
solenoid valve B connector
Short or open in lock-up control
l
solenoid valve 8 wire
Faulty lock-up control solenoid
l
valve B
Blinks or Disconnected throttle angle
l
OFF sensor connector
Short or open in throttle angle
l
sensor wire
Blinks Disconnected speed sensor
l
connector
Short of open in speed sensor
l
wire
Faulty speed sensor
l
Blinks Short in shift position console
l
switch wire
Faulty shift position console
l
switch
OFF Disconnected shift position
l
console switch connector
Open in shift position console
l
switch wire
Faulty shift position console
l
switch
Blinks Disconnected shift control
l
solenoid valve A connector
Short or open in shift control
l
solenoid valve A wire
Faulty shift control solenoid
l
valve A
Blinks
solenoid valve B connector
Short or open in shift control
l
solenoid valve B wire
Faulty shift control solenoid
l
valve B
Symptom
Lock-up clutch does not engage.
l
Lock-up clutch does not
l
disengage.
Unstable idle speed.
l
Lock-up clutch does not engage.
l
Lock-up clutch does not engage.
l
. Lock-up clutch does not engage.
Fails to shift other than 2nd -
l
4th gears.
Lock-up clutch does not engage.
l
Fails to shift other than 2nd *
l
4th gears.
Lock-up clutch does not engage.
l
Lock-up clutch engages and
l
disengages alternately.
Fails to shift (between 1st -
l
3rd gears only).
Fails to shift (stuck in 4th gear)
l
Fails to shift (stuck in 1st or 4th
l
gears).
Refer to
14-54
14-55
14-56
14-57
14-58
14-60
14-62
14-63