Infiniti FX35 / FX45. Manual — part 61
AT-172
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
In "N" Position, Vehicle Moves
INFOID:0000000001327364
SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.
DIAGNOSTIC PROCEDURE
1.
CHECK PNP SWITCH CIRCUIT
With CONSULT-III
• Perform self-diagnosis.
Without CONSULT-III
• Perform self-diagnosis. Refer to
AT-91, "Diagnosis Procedure without CONSULT-III"
.
Do the self-diagnostic results indicate PNP switch?
YES
>> Check the malfunctioning system. Refer to
.
NO
>> GO TO 2.
2.
CHECK A/T POSITION
Check the A/T position. Refer to
AT-207, "Checking of A/T Position"
.
OK or NG
OK
>> GO TO 3.
NG
>> Adjust A/T position. Refer to
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-215, "Control Valve with TCM and A/T Fluid Temperature Sensor 2"
.
2.
Check A/T fluid condition. Refer to
.
OK or NG
OK
>> GO TO 5.
NG
>> Check the malfunction items. If any items are damaged,
repair or replace damaged parts. Refer to
(Symptom No.67).
5.
CHECK SYMPTOM
Check again. Refer to “CHECK AT IDLE”.
SCIA2119E
SAT638A
SCIA5199E
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-173
< SERVICE INFORMATION >
D
E
F
G
H
I
J
K
L
M
A
B
AT
N
O
P
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 Value"
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.
Large Shock ("N" to "D" Position)
INFOID:0000000001327365
SYMPTOM:
A noticeable shock occurs when the selector lever is shifted from “N” to “D” position.
DIAGNOSTIC PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
With CONSULT-III
• Perform self-diagnosis.
Without CONSULT-III
• Perform self-diagnosis. Refer to
AT-91, "Diagnosis Procedure without CONSULT-III"
.
Is any malfunction detected by self-diagnostic results?
YES
>> Check the malfunctioning system. Refer to
AT-84, "CONSULT-III Function (TRANSMISSION)"
,
AT-91, "Diagnosis Procedure without CONSULT-III"
.
NO
>> GO TO 2.
2.
ENGINE IDLE SPEED
Check the engine idle speed. Refer to
EC-84, "Idle Speed and Ignition Timing Check"
661, "Idle Speed and Ignition Timing Check"
(for VK45DE).
OK or NG
OK
>> GO TO 3.
NG
>> Adjust engine idle speed. Refer to
EC-84, "Idle Speed and Ignition Timing Check"
or
EC-661, "Idle Speed and Ignition Timing Check"
(for VK45DE).
3.
CHECK A/T POSITION
Check the A/T position. Refer to
AT-207, "Checking of A/T Position"
.
OK or NG
OK
>> GO TO 4.
NG
>> Adjust A/T position. Refer to
4.
CHECK A/T FLUID LEVEL
SCIA2119E
AT-174
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
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
AT-49, "Inspections Before Trouble Diagnosis"
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-215, "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-215, "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-215, "Control Valve with TCM and A/T Fluid Temperature Sensor 2"
.
SAT638A
SAT494G
TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-175
< SERVICE INFORMATION >
D
E
F
G
H
I
J
K
L
M
A
B
AT
N
O
P
2.
Check A/T fluid condition. Refer to
.
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 “CHECK AT IDLE”.
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 Value"
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.
Vehicle Does Not Creep Backward in "R" Position
INFOID:0000000001327366
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
With CONSULT-III
• Perform self-diagnosis.
Without CONSULT-III
• Perform self-diagnosis. Refer to
AT-91, "Diagnosis Procedure without CONSULT-III"
.
Is any malfunction detected by self-diagnostic results?
YES
>> Check the malfunctioning system. Refer to
AT-84, "CONSULT-III Function (TRANSMISSION)"
,
AT-91, "Diagnosis Procedure without CONSULT-III"
.
NO
>> GO TO 2.
2.
CHECK A/T POSITION
SCIA5199E
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