AT-150
[RE4F04B]
DTC P0734 A/T 4TH GEAR FUNCTION
Revision: November 2006
2006 Altima
3.
CHECK VALVE RESISTANCE
1.
Remove control valve assembly. Refer to
AT-267, "Control Valve Assembly and Accumulators"
.
–
Shift solenoid valve A
–
Shift solenoid valve B
2.
Check resistance between two terminals.
OK or NG
OK
>> GO TO 5.
NG
>> Replace solenoid valve assembly.
4.
CHECK VALVE OPERATION
1.
Remove control valve assembly. Refer to
AT-267, "Control Valve Assembly and Accumulators"
.
–
Shift solenoid valve A
–
Shift solenoid valve B
2.
Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Replace solenoid valve assembly.
5.
CHECK CONTROL VALVE
1.
Disassemble control valve assembly. Refer to
.
2.
Check to ensure that:
–
Valve, sleeve and plug slide along valve bore under their own
weight.
–
Valve, sleeve and plug are free from burrs, dents and scratches.
–
Control valve springs are free from damage, deformation and
fatigue.
–
Hydraulic line is free from obstacles.
OK or NG
OK
>> GO TO 6.
NG
>> Repair control valve.
6.
CHECK SHIFT UP (D
3
TO D
4
)
Does A/T shift from D
3
to D
4
at the specified speed?
OK or NG
OK
>> GO TO 11.
NG
>> Check control valve again. Repair or replace control valve assembly.
Solenoid valve
Terminal No.
Resistance
(Approx.)
Shift solenoid valve A
2
Ground
20 - 30
Ω
Shift solenoid valve B
1
5 - 20
Ω
WCIA0089E
WCIA0090E
SAT367H