Nissan Pathfinder (2005 year). Instruction — part 28
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-195
D
E
F
G
H
I
J
K
L
M
A
B
AT
2005 Pathfinder
7.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sen-
.
2.
Disassemble A/T. Refer to
.
3.
Check the following.
–
Oil pump assembly. Refer to
.
–
Power train system. Refer to
.
–
Transmission case. Refer to
.
OK or NG
OK
>> GO TO 8.
NG
>> Repair or replace damaged parts.
8.
CHECK A/T FLUID CONDITION
1.
Remove oil pan. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sensor 2"
.
2.
Check A/T fluid condition. Refer to
AT-50, "Fluid Condition Check"
.
OK or NG
OK
>> GO TO 9.
NG
>> GO TO 12.
9.
DETECT MALFUNCTIONING ITEM
●
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
(Symptom No.23).
OK or NG
OK
>> GO TO 10.
NG
>> Repair or replace damaged parts.
10.
CHECK SYMPTOM
Check again. Refer to
,
.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 11.
11.
PERFORM TCM INSPECTION
1.
Perform TCM input/output signals inspection. Refer to
AT-83, "TCM Input/Output Signal Reference Val-
.
2.
If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK
>> INSPECTION END
NG
>> Repair or replace damaged parts.
12.
DETECT MALFUNCTIONING ITEM
●
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
(Symptom No.23).
OK or NG
OK
>> GO TO 10.
NG
>> Repair or replace damaged parts.
AT-196
TROUBLE DIAGNOSIS FOR SYMPTOMS
2005 Pathfinder
A/T Does Not Shift: D
1
→
D
2
UCS0037Q
SYMPTOM:
The vehicle does not shift-up from the D
1
to D
2
gear at the specified speed.
DIAGNOSTIC PROCEDURE
1.
CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D
1.
OK or NG
OK
>> GO TO 2.
NG
>> Refer to
AT-192, "Vehicle Does Not Creep Forward In “D” Position"
,
.
2.
CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to
AT-87, "SELF-DIAGNOSTIC RESULT MODE"
.
Is any malfunction detected by self-diagnostic results?
YES
>> Check the malfunctioning system. Refer to
AT-87, "SELF-DIAGNOSTIC RESULT MODE"
.
NO
>> GO TO 3.
3.
CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to
.
OK or NG
OK
>> GO TO 4.
NG
>> Refill ATF.
4.
CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to
.
OK or NG
OK
>> GO TO 7.
NG - 1 >> Line pressure high. GO TO 5.
NG - 2 >> Line pressure low. GO TO 6.
5.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sen-
.
2.
Disassemble A/T. Refer to
.
3.
Check the following.
–
Oil pump assembly. Refer to
.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace damaged parts.
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-197
D
E
F
G
H
I
J
K
L
M
A
B
AT
2005 Pathfinder
6.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sen-
.
2.
Disassemble A/T. Refer to
.
3.
Check the following.
–
Oil pump assembly. Refer to
.
–
Power train system. Refer to
.
–
Transmission case. Refer to
.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace damaged parts.
7.
CHECK A/T FLUID CONDITION
1.
Remove oil pan. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sensor 2"
.
2.
Check A/T fluid condition. Refer to
AT-50, "Fluid Condition Check"
.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 11.
8.
DETECT MALFUNCTIONING ITEM
●
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
(Symptom No.10).
OK or NG
OK
>> GO TO 9.
NG
>> Repair or replace damaged parts.
9.
CHECK SYMPTOM
Check again. Refer to
,
.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 10.
10.
PERFORM TCM INSPECTION
1.
Perform TCM input/output signals inspection. Refer to
AT-83, "TCM Input/Output Signal Reference Val-
.
2.
If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK
>> INSPECTION END
NG
>> Repair or replace damaged parts.
11.
DETECT MALFUNCTIONING ITEM
●
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
(Symptom No.10).
OK or NG
OK
>> GO TO 9.
NG
>> Repair or replace damaged parts.
AT-198
TROUBLE DIAGNOSIS FOR SYMPTOMS
2005 Pathfinder
A/T Does Not Shift: D
2
→
D
3
UCS0037R
SYMPTOM:
The vehicle does not shift-up from D
2
to D
3
gear at the specified speed.
DIAGNOSTIC PROCEDURE
1.
CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D
1.
OK or NG
OK
>> GO TO 2.
NG
>> Refer to
AT-192, "Vehicle Does Not Creep Forward In “D” Position"
,
.
2.
CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to
AT-87, "SELF-DIAGNOSTIC RESULT MODE"
.
Is any malfunction detected by self-diagnostic results?
YES
>> Check the malfunctioning system. Refer to
AT-87, "SELF-DIAGNOSTIC RESULT MODE"
.
NO
>> GO TO 3.
3.
CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to
.
OK or NG
OK
>> GO TO 4.
NG
>> Refill ATF.
4.
CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to
.
OK or NG
OK
>> GO TO 7.
NG - 1 >> Line pressure high. GO TO 5.
NG - 2 >> Line pressure low. GO TO 6.
5.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sen-
.
2.
Disassemble A/T. Refer to
.
3.
Check the following.
–
Oil pump assembly. Refer to
.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace damaged parts.
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-199
D
E
F
G
H
I
J
K
L
M
A
B
AT
2005 Pathfinder
6.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sen-
.
2.
Disassemble A/T. Refer to
.
3.
Check the following.
–
Oil pump assembly. Refer to
.
–
Power train system. Refer to
.
–
Transmission case. Refer to
.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace damaged parts.
7.
CHECK A/T FLUID CONDITION
1.
Remove oil pan. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sensor 2"
.
2.
Check A/T fluid condition. Refer to
AT-50, "Fluid Condition Check"
.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 11.
8.
DETECT MALFUNCTIONING ITEM
●
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
(Symptom No.11).
OK or NG
OK
>> GO TO 9.
NG
>> Repair or replace damaged parts.
9.
CHECK SYMPTOM
Check again. Refer to
,
.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 10.
10.
PERFORM TCM INSPECTION
1.
Perform TCM input/output signals inspection. Refer to
AT-83, "TCM Input/Output Signal Reference Val-
.
2.
If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK
>> INSPECTION END
NG
>> Repair or replace damaged parts.
11.
DETECT MALFUNCTIONING ITEM
●
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
(Symptom No.11).
OK or NG
OK
>> GO TO 9.
NG
>> Repair or replace damaged parts.
AT-200
TROUBLE DIAGNOSIS FOR SYMPTOMS
2005 Pathfinder
A/T Does Not Shift: D
3
→
D
4
UCS0037S
SYMPTOM:
●
The vehicle does not shift-up from the D
3
to D
4
gear at the specified speed.
●
The vehicle does not shift-up from the D
3
to D
4
gear unless A/T is warmed up.
DIAGNOSTIC PROCEDURE
1.
CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D
1.
OK or NG
OK
>> GO TO 2.
NG
>> Refer to
AT-192, "Vehicle Does Not Creep Forward In “D” Position"
,
.
2.
CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to
AT-87, "SELF-DIAGNOSTIC RESULT MODE"
.
Is any malfunction detected by self-diagnostic results?
YES
>> Check the malfunctioning system. Refer to
AT-87, "SELF-DIAGNOSTIC RESULT MODE"
.
NO
>> GO TO 3.
3.
CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to
.
OK or NG
OK
>> GO TO 4.
NG
>> Refill ATF.
4.
CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to
.
OK or NG
OK
>> GO TO 7.
NG - 1 >> Line pressure high. GO TO 5.
NG - 2 >> Line pressure low. GO TO 6.
5.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sen-
.
2.
Disassemble A/T. Refer to
.
3.
Check the following.
–
Oil pump assembly. Refer to
.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace damaged parts.
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-201
D
E
F
G
H
I
J
K
L
M
A
B
AT
2005 Pathfinder
6.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sen-
.
2.
Disassemble A/T. Refer to
.
3.
Check the following.
–
Oil pump assembly. Refer to
.
–
Power train system. Refer to
.
–
Transmission case. Refer to
.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace damaged parts.
7.
CHECK A/T FLUID CONDITION
1.
Remove oil pan. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sensor 2"
.
2.
Check A/T fluid condition. Refer to
AT-50, "Fluid Condition Check"
.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 11.
8.
DETECT MALFUNCTIONING ITEM
●
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
(Symptom No.12).
OK or NG
OK
>> GO TO 9.
NG
>> Repair or replace damaged parts.
9.
CHECK SYMPTOM
Check again. Refer to
,
.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 10.
10.
PERFORM TCM INSPECTION
1.
Perform TCM input/output signals inspection. Refer to
AT-83, "TCM Input/Output Signal Reference Val-
.
2.
If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK
>> INSPECTION END
NG
>> Repair or replace damaged parts.
11.
DETECT MALFUNCTIONING ITEM
●
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
(Symptom No.12).
OK or NG
OK
>> GO TO 9.
NG
>> Repair or replace damaged parts.
AT-202
TROUBLE DIAGNOSIS FOR SYMPTOMS
2005 Pathfinder
A/T Does Not Shift: D
4
→
D
5
UCS0037T
SYMPTOM:
●
The vehicle does not shift-up from the D
4
to D
5
gear at the specified speed.
●
The vehicle does not shift-up from the D
4
to D
5
gear unless A/T is warmed up.
DIAGNOSTIC PROCEDURE
1.
CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D
1.
OK or NG
OK
>> GO TO 2.
NG
>> Refer to
AT-192, "Vehicle Does Not Creep Forward In “D” Position"
,
.
2.
CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to
AT-87, "SELF-DIAGNOSTIC RESULT MODE"
.
Is any malfunction detected by self-diagnostic results?
YES
>> Check the malfunctioning system. Refer to
AT-87, "SELF-DIAGNOSTIC RESULT MODE"
.
NO
>> GO TO 3.
3.
CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to
.
OK or NG
OK
>> GO TO 4.
NG
>> Refill ATF.
4.
CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to
.
OK or NG
OK
>> GO TO 7.
NG - 1 >> Line pressure high. GO TO 5.
NG - 2 >> Line pressure low. GO TO 6.
5.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-233, "Control Valve With TCM and A/T Fluid Temperature Sen-
.
2.
Disassemble A/T. Refer to
.
3.
Check the following.
–
Oil pump assembly. Refer to
.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace damaged parts.
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