TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-245
[RE4F04B]
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AT
Revision: November 2006
2006 Altima
13. A/T Does Not Hold Lock-up Condition
ECS009A6
SYMPTOM:
A/T does not hold lock-up condition for more than 30 seconds.
1.
CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to engine speed signal circuit
after cruise test?
Yes or No
Yes
>> Check engine speed signal circuit. Refer to
"DTC P0725 ENGINE SPEED SIGNAL"
No
>> GO TO 2.
2.
CHECK A/T FLUID CONDITION
1.
Remove oil pan.
2.
Check A/T fluid condition.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
3.
DETECT MALFUNCTIONING ITEM
1.
Remove control valve assembly. Refer to
AT-267, "Control Valve Assembly and Accumulators"
2.
Check the following items:
–
Torque converter clutch control valve
–
Pilot valve
–
Pilot filter
3.
Disassemble A/T.
4.
Check torque converter and oil pump assembly.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace damaged parts.
WCIA0064E
SAT171B