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DRIVETRAIN SYSTEM
SYMPTOM TROUBLESHOOTING
GENERAL INFORMATION
14-6
When the
vehicle
has any
AfT
system trouble, check the DTC or
Mil
blinking, refer to the
Ole
index
(page
14·
16)
and begin the appropriate troubleshooting procedure. If
there
are no
Ole
or
MIL blinking,
do the diagnostic procedure for the symptom, and
check
the oil pressure and diagnose according to the
hydraulic
ci rcuit
troubleshooting chart
(page
14-10).
Symptom
I
Diagnosis
procedure
Vehicle
does not start
•
Check
the AfT clutch PC solenoid
valve
operation
(page 14-6).
•
Check the line oil pressure and 1st clutch
oil
pressure
(page 14-8).
•
Check the 1st shift
clutch
system
(page
14-47).
Excessive starting shock
•
Check the line oil pressure and 1st clutch oil pressure
(page 14-8).
•
Check
the
1st
shift clutch system
(page 14-47).
~icle
creeps (vehicle
•
Check that the emergency
valve is
not active
(page
does not
stop)
when
14-28).
idling
•
Check the
1st
clutch
oit
pressure
(page
14-8).
•
Check the 1st shift clutch system
(page
14-47).
Driving power falls o
-ff-
•
Check the AfT clutch PC solenoid valve operation
when starting
(insuffi-
(page
14-6).
cienl
engine brake)
•
Check the 1st clutch oil pressure
(page
14-8).
•
Check the 1st shift clutch
system
(page
14-47).
Engine stalls when
•
Check
th
e
engine
idle
speed
(page
6-55).
starting
•
Check the 1st clutch oil pressure
(page
14-8).
•
Check the 1st shift
clutch
system (page 14-47).
AfT does not shift
•
Check the TP
sensor
installation condition
(page
6-51)
•
Check the VS sensor installation
condition (page
6-53)
•
Check the shift solenoid
valve operation (page 14-7).
•
Check the
clutch
oil pressures
(page
14-8).
•
Check the 1st/2nd shift
clutch
system
(page
14-47).
['''""iV' 'hift ' h od<.
•
Check the clutch oil pressures (page 14 8).
engine
rpm rises or
•
Check the 1st/2nd
shift
clutch system
(page
14-47).
driving
power falls off
AfT CLUTCH PC SOLENOID VALVE
OPERATION INSPECTION
Remove the left side panel
(page 3-1 1).
Turn the ignition switch to ON
(I)
and check for a
"click"
sound from the
AfT
clutch PC solenoid valve.
If the
"click"
sound is heard, the
AfT
clutch PC sole-
noid valve is normal.
Also
check
for
Engine
oil
level
(page4-12
)
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Table of Contents
Troubleshooting
