TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-243
[RE4F04B]
D
E
F
G
H
I
J
K
L
M
A
B
AT
Revision: November 2006
2006 Altima
12. A/T Does Not Perform Lock-up
ECS009A5
SYMPTOM:
A/T does not perform lock-up at the specified speed.
1.
CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to torque converter clutch sole-
noid valve circuit after cruise test?
Yes or No
Yes
>> Check torque converter clutch solenoid valve circuit.
Refer to
AT-153, "DTC P0740 TORQUE CONVERTER
.
No
>> GO TO 2.
2.
CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]
Check throttle position sensor [accelerator pedal position (APP) sen-
sor]. Refer to
EC-206, "DTC P0122, P0123 TP SENSOR"
521, "DTC P2122, P2123 APP SENSOR"
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace throttle position sensor [accelerator
pedal position (APP) sensor].
3.
DETECT MALFUNCTIONING ITEM
1.
Remove control valve. Refer to
AT-267, "Control Valve Assembly and Accumulators"
2.
Check following items:
–
Torque converter clutch control valve
–
Torque converter relief valve
–
Torque converter clutch solenoid valve
–
Pilot valve
–
Pilot filter
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
4.
CHECK SYMPTOM
Check again.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 5.
WCIA0063E
LCIA0067E