Honda Prelude 1993 Service Manual page 498

Symptom-to-Component Chart
Numbsr oI Da
indicator light
blinks while
Ssrvice Check
Connector is
jumped.
Da indicator
light
Possible Cause
Symptom
Refer to
page
I Blinks
Disconnected lock-up controi solenoid vafue
A connector
Shon or open in lock-up control solenoid
vafue A wire
Faultv lock-uo controlsolenoid valve A
Lock-up clutch does not
engage.
Lock-up clutch does not
disengage.
Unstable idle speed.
14-38
2
Blinks
Disconnected lock-up control solenoid vafue
B connector
Short or open in lock-up control solenoid
valve B wire
Faulty lock-up controlsolenoid valve B
Lock-up clutch does not
engage.
1+39
5
Blinks
or OFF
Disconnectsd throttle position (TP) sensor
connector
Short or oDen in TP sensor wire
Fauhv TP sensor
Lock-up clutch does not
engage.
1440
4 Blinks
Disconnected vehicle speed sensor {VSS)
connector
Short or open in VSS wire
Faufty VSS
Lock-up clutch does not
engage.
1441
Blinks
Short in A/T 9e8r position switch wire
Fauhy A/T gear poshion switch
' Fails to shi{t other than
zrde4th gears.
' Lock-up clutch does not
engage,
1442
OFF
Diconnected Nf
geat position switch
connector
Open in A/T gear position switch wire
Faulty A/T gear position switch
Fails to shift other than
2ndo4th ge8rs,
Lock-up clutch does not
engage.
Lock-up clutch sngages
and disengages ahernate-
1444
Blinks
Disconnected shift control solenoid valve A
connector
Short or open in shift control solenoid valve
A wire
Fauhy shift controlsolenoid valve A
' Fails to shitt (between 1
ste4th, 2nde4th or 2
nde3rd gesrs only).
' Fails to shift (stuck in 4
th gear)
1446
I Blinks
Disconnected shift control solenoid valve B
connecror
Short or oDBn in shitt control solenoid valve B
Fsuhv shift controlsolenoid valve B
' Fails to shift (stuck in I
st or 4th gears).
14-47
9 Blinks
Disconnected countershaft speed sensor
connector
Short or opon in the countershaft speed
sensor wir€
Fauhy countershaft speed sensor
Lock-up clutch does not
engage.
1+44
Electrical Syst
14-36