Infiniti Q45. Manual — part 69
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-189
D
E
F
G
H
I
J
K
L
M
A
B
AT
7.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-225, "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 9.
NG
>> Repair or replace damaged parts.
8.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-225, "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 9.
NG
>> Repair or replace damaged parts.
9.
CHECK A/T FLUID CONDITION
1.
Remove oil pan. Refer to
AT-225, "Control Valve with TCM and A/T Fluid Temperature Sensor 2"
.
2.
Check A/T fluid condition. Refer to
AT-51, "A/T Fluid Condition Check"
.
OK or NG
OK
>> GO TO 10.
NG
>> GO TO 13.
10.
DETECT MALFUNCTIONING ITEM
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
(Symptom No.43).
OK or NG
OK
>> GO TO 11.
NG
>> Repair or replace damaged parts.
11.
CHECK SYMPTOM
Check again. Refer to
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 12.
12.
CHECK TCM
1.
Check TCM input/output signals. Refer to
AT-84, "TCM Input/Output Signal Reference Values"
.
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.
AT-190
TROUBLE DIAGNOSIS FOR SYMPTOMS
13.
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 11.
NG
>> Repair or replace damaged parts.
Vehicle Does Not Creep Forward In “D” Position
NCS0010K
SYMPTOM:
Vehicle does not creep forward when selecting “D” position.
DIAGNOSTIC PROCEDURE
1.
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"
"Judgement Self-diagnosis Code"
.
NO
>> GO TO 2.
2.
CHECK CONTROL LINKAGE
Check the control linkage. Refer to
AT-218, "Checking of A/T Position"
OK or NG
OK
>> GO TO 3.
NG
>> Adjust control linkage. Refer to
AT-218, "Adjustment of A/T Position"
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 STALL TEST
Check stall revolution with selector lever in “D” position. Refer to
.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 7.
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.
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-191
D
E
F
G
H
I
J
K
L
M
A
B
AT
6.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-225, "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 8.
NG
>> Repair or replace damaged parts.
7.
DETECT MALFUNCTIONING ITEM
1.
Check control valve with TCM. Refer to
AT-225, "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-225, "Control Valve with TCM and A/T Fluid Temperature Sensor 2"
.
2.
Check A/T fluid condition. Refer to
AT-51, "A/T 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.43).
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 signals. Refer to
AT-84, "TCM Input/Output Signal Reference Values"
.
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.
AT-192
TROUBLE DIAGNOSIS FOR SYMPTOMS
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.
Vehicle Cannot Be Started from D
1
NCS0010L
SYMPTOM:
Vehicle cannot be started from D
1
on cruise test - Part 1.
DIAGNOSTIC PROCEDURE
1.
CONFIRM THE SYMPTOM
Check if vehicle creeps in “R” position.
OK or NG
OK
>> GO TO 2.
NG
>> Refer to
AT-188, "Vehicle Does Not Creep Backward In “R” 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"
"Judgement Self-diagnosis Code"
.
NO
>> GO TO 3.
3.
CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to
AT-126, "DTC P1705 THROTTLE POSITION SENSOR"
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace accelerator pedal position 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.
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