Infiniti G35 (V35). Manual — part 48
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-183
D
E
F
G
H
I
J
K
L
M
A
B
AT
In “N” Position, Vehicle Moves
NCS000I1
SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.
DIAGNOSTIC PROCEDURE
1.
CHECK PNP SWITCH CIRCUIT
Perform self-diagnosis. Refer to
AT-86, "SELF-DIAGNOSTIC RESULT MODE"
Do the self-diagnostic results indicate PNP switch?
YES
>> Check the malfunctioning system. Refer to
AT-106, "DTC P0705 PARK/NEUTRAL POSITION
NO
>> GO TO 2.
2.
CHECK A/T POSITION
Check A/T position. Refer to
AT-216, "Checking of A/T Position"
OK or NG
OK
>> GO TO 3.
NG
>> Adjust A/T position. Refer to
AT-215, "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 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-50, "A/T Fluid Condition Check"
.
OK or NG
OK
>> GO TO 5.
NG
>> Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
5.
CHECK SYMPTOM
Check again. Refer to
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 6.
6.
CHECK TCM
1.
Check TCM input/output signals. Refer to
AT-83, "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-184
TROUBLE DIAGNOSIS FOR SYMPTOMS
Large Shock (“N” to “D” Position)
NCS000I2
SYMPTOM:
A noticeable shock occurs when the selector lever is shifted from the “N” to “D” position.
DIAGNOSTIC PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to
AT-86, "SELF-DIAGNOSTIC RESULT MODE"
,
Is any malfunction detected by self-diagnostic results?
YES
>> Check the malfunctioning system. Refer to
AT-86, "SELF-DIAGNOSTIC RESULT MODE"
"Judgment Self-diagnosis Code"
.
NO
>> GO TO 2.
2.
CHECK ENGINE IDLE SPEED
Check the engine idle speed. Refer to
EC-76, "Idle Speed and Ignition Timing Check"
.
OK or NG
OK
>> GO TO 3.
NG
>> Adjust engine idle speed. Refer to
EC-76, "Idle Speed and Ignition Timing Check"
3.
CHECK A/T POSITION
AT-216, "Checking of A/T Position"
.
OK or NG
OK
>> GO TO 4.
NG
>> Adjust A/T position. Refer to
AT-215, "Adjustment of A/T Position"
4.
CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to
OK or NG
OK
>> GO TO 5.
NG
>> Refill ATF.
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 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.
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-185
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
.
–
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-50, "A/T Fluid Condition Check"
.
OK or NG
OK
>> GO TO 10.
NG
>> GO TO 9.
9.
DETECT MALFUNCTIONING ITEM
Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to
(Symptom No.1).
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-83, "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-186
TROUBLE DIAGNOSIS FOR SYMPTOMS
Vehicle Does Not Creep Backward in “R” Position
NCS000I3
SYMPTOM:
The vehicle does not creep in the “R” position. Or an extreme lack of acceleration is observed.
DIAGNOSTIC PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to
AT-86, "SELF-DIAGNOSTIC RESULT MODE"
,
Is any malfunction detected by self-diagnostic results?
YES
>> Check the malfunctioning system. Refer to
AT-86, "SELF-DIAGNOSTIC RESULT MODE"
"Judgment Self-diagnosis Code"
.
NO
>> GO TO 2.
2.
CHECK A/T POSITION
AT-216, "Checking of A/T Position"
.
OK or NG
OK
>> GO TO 3.
NG
>> Adjust A/T position. Refer to
AT-215, "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 “M” and “R” positions. Refer to
OK or NG
OK
>> GO TO 6.
OK in “M” position, NG in “R” position>>GO TO 5.
NG in both “M” and “R” positions>>GO TO 8.
5.
DETECT MALFUNCTIONING ITEM
1.
Disassemble A/T. Refer to
2.
Check the following.
–
OK or NG
OK
>> GO TO 9.
NG
>> Repair or replace damaged parts.
6.
CHECK LINE PRESSURE
Check the line pressure with the engine idling. Refer to
.
OK or NG
OK
>> GO TO 9.
NG - 1 >> Line pressure high. GO TO 7.
NG - 2 >> Line pressure low. GO TO 8.
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