Infiniti M45 (Y34). Manual — part 96
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-269
D
E
F
G
H
I
J
K
L
M
A
B
AT
5.
CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer
to
.
OK or NG
OK
>> GO TO 8.
NG - 1 >> Line pressure high. GO TO 6.
NG - 2 >> Line pressure low. GO TO 7.
6.
DETECT MALFUNCTIONING ITEM
1.
Check control valve assembly. Refer to
AT-312, "Control Valve Assembly"
2.
Disassemble A/T. Refer to
.
3.
Check the following items:
–
Oil pump assembly. Refer to
.
OK or NG
OK
>> GO TO 8.
NG
>> Repair or replace damaged parts.
7.
DETECT MALFUNCTIONING ITEM
1.
Check control valve assembly. Refer to
AT-312, "Control Valve Assembly"
2.
Disassemble A/T. Refer to
.
3.
Check the following items:
–
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-312, "Control Valve Assembly"
2.
Check A/T fluid condition. Refer to
.
OK or NG
OK
>> GO TO 9.
NG
>> GO TO 12.
SAT494G
SCIA5199E
AT-270
TROUBLE DIAGNOSIS FOR SYMPTOMS
9.
DETECT MALFUNCTIONING ITEM
●
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
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.
CHECK TCM
1.
Check TCM input/output signal. Refer to
AT-86, "TCM Input/Output Signal Reference Values"
.
2.
If NG, recheck TCM pin 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
OK or NG
OK
>> GO TO 10.
NG
>> Repair or replace damaged parts.
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-271
D
E
F
G
H
I
J
K
L
M
A
B
AT
Vehicle Cannot Be Started From D
1
ACS001FX
SYMPTOM:
Vehicle cannot be started from D
1
on cruise test - Part 1 and Part 2.
DIAGNOSTIC PROCEDURE
1.
CONFIRM THE SYMPTOM
Check if vehicle creeps in “R” position.
OK or NG
OK
>> GO TO 2.
NG
>> Refer to
AT-265, "Vehicle Does Not Creep Backward in “R” Position"
2.
CHECK SELF-DIAGNOSTIC RESULTS
Execute self-diagnosis.
Is any malfunction detected by self-diagnostic results?
YES
>> Check the malfunctioning system.
NO
>> GO TO 3.
3.
CHECK ACCELERATOR POSITION (APP) SENSOR
Check accelerator pedal position (APP) sensor. Refer to
AT-152, "DTC P1705 THROTTLE POSITION SEN-
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace accelerator pedal position (APP) sensor.
4.
CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to
OK or NG
OK
>> GO TO 5.
NG
>> Refill ATF.
5.
CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to
OK or NG
OK
>> GO TO 8.
NG - 1 >> Line pressure high. GO TO 6.
NG - 2 >> Line pressure low. GO TO 7.
SAT638A
SAT494G
AT-272
TROUBLE DIAGNOSIS FOR SYMPTOMS
6.
DETECT MALFUNCTIONING ITEM
1.
Check control valve assembly. Refer to
AT-312, "Control Valve Assembly"
2.
Disassemble A/T. Refer to
3.
Check the following items:
–
Oil pump assembly. Refer to
OK or NG
OK
>> GO TO 8.
NG
>> Repair or replace damaged parts.
7.
DETECT MALFUNCTIONING ITEM
1.
Check control valve assembly. Refer to
AT-312, "Control Valve Assembly"
2.
Disassemble A/T. Refer to
3.
Check the following items:
–
Oil pump assembly. 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-312, "Control Valve Assembly"
2.
Check A/T fluid condition. Refer to
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
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.
SCIA5199E
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