Nissan Frontier D22. Manual — part 102
TROUBLE DIAGNOSES FOR SYMPTOMS
AT-377
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
4.
CHECK A/T FLUID CONDITION
1.
Remove oil pan.
2.
Check A/T fluid condition.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 7.
5.
DETECT MALFUNCTIONING ITEM
1.
Remove control valve assembly. Refer to
2.
Check the following items:
–
Shift valve B
–
Overrun clutch control valve
–
Shift solenoid valve B
–
Pilot valve
–
Pilot filter
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace damaged parts.
6.
CHECK SYMPTOM
Check again.
OK or NG
OK
>> INSPECTION END.
NG
>> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
7.
DETECT MALFUNCTIONING ITEM
1.
Remove control valve assembly. Refer to
2.
Check the following items:
–
Shift valve B
–
Overrun clutch control valve
–
Shift solenoid valve B
–
Pilot valve
–
Pilot filter
3.
Disassemble A/T.
4.
Check the following items:
–
Servo piston assembly
–
Brake band
–
Torque converter
–
Oil pump assembly
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace damaged parts.
SAT171B
AT-378
[RE4R01A]
TROUBLE DIAGNOSES FOR SYMPTOMS
12. A/T Does Not Perform Lock-up
ECS007OI
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-293, "DTC P0740 TORQUE CONVERTER
No
>> GO TO 2.
2.
CHECK THROTTLE POSITION SENSOR
Check throttle position sensor. Refer to
(VG33E only) or
EC-1350, "DTC P0121 TP SENSOR"
(VG33ER only).
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace throttle position sensor.
3.
DETECT MALFUNCTIONING ITEM
1.
Remove control valve. Refer to
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
>> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
SAT346H
AAT495A
TROUBLE DIAGNOSES FOR SYMPTOMS
AT-379
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
13. A/T Does Not Hold Lock-up Condition
ECS007OJ
SYMPTOM:
●
A/T does not hold lock-up condition for more than 30 seconds.
1.
CHECK 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 3.
NG
>> GO TO 5.
3.
DETECT MALFUNCTIONING ITEM
1.
Remove control valve assembly. Refer to
2.
Check the following items:
–
Torque converter clutch control 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
>> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
SAT347H
SAT171B
AT-380
[RE4R01A]
TROUBLE DIAGNOSES FOR SYMPTOMS
5.
DETECT MALFUNCTIONING ITEM
1.
Remove control valve assembly. Refer to
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 4.
NG
>> Repair or replace damaged parts.
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