Infiniti FX35 / FX45. Manual — part 65

AT-188

< SERVICE INFORMATION >

TROUBLE DIAGNOSIS FOR SYMPTOMS

7.

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

AT-49, "Inspections Before

Trouble Diagnosis"

.

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

AT-59,

"Symptom Chart"

(Symptom No.12).

OK or NG

OK

>> GO TO 9.

NG

>> Repair or replace damaged parts.

9.

CHECK SYMPTOM

Check again. Refer to

AT-53, "Road Test"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 10.

10.

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.

11.

DETECT MALFUNCTIONING ITEM

Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to

AT-59,

"Symptom Chart"

(Symptom No.12).

OK or NG

OK

>> GO TO 9.

NG

>> Repair or replace damaged parts.

A/T Does Not Shift: D

4

→

D

5

INFOID:0000000001327372

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-178, "Vehicle Does Not Creep Forward in "D" Position"

,

AT-180, "Vehicle Cannot Be

Started from D

1

"

.

2.

CHECK SELF-DIAGNOSTIC RESULTS

SCIA5199E

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-189

< SERVICE INFORMATION >

D

E

F

G

H

I

J

K

L

M

A

B

AT

N

O

P

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 3.

3.

CHECK A/T FLUID LEVEL

Check A/T fluid level. Refer to

AT-11, "Checking A/T Fluid"

.

OK or NG

OK

>> GO TO 4.

NG

>> Refill ATF.

4.

CHECK LINE PRESSURE

Check line pressure at the engine stall point. Refer to

AT-49,

"Inspections Before Trouble Diagnosis"

.

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-215, "Control Valve with TCM and A/T Fluid Temperature Sen-

sor 2"

.

2.

Disassemble A/T. Refer to

AT-267

.

3.

Check the following.

-

Oil pump assembly. Refer to

AT-285, "Oil Pump"

.

OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace damaged parts.

6.

DETECT MALFUNCTIONING ITEM

1.

Check control valve with TCM. Refer to

AT-215, "Control Valve with TCM and A/T Fluid Temperature Sen-

sor 2"

.

2.

Disassemble A/T. Refer to

AT-267

.

3.

Check the following.

-

Oil pump assembly. Refer to

AT-285, "Oil Pump"

.

-

Power train system. Refer to

AT-267

.

-

Transmission case. Refer to

AT-267

.

OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace damaged parts.

SAT638A

SAT494G

AT-190

< SERVICE INFORMATION >

TROUBLE DIAGNOSIS FOR SYMPTOMS

7.

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

AT-49, "Inspections Before

Trouble Diagnosis"

.

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

AT-59,

"Symptom Chart"

(Symptom No.13).

OK or NG

OK

>> GO TO 9.

NG

>> Repair or replace damaged parts.

9.

CHECK SYMPTOM

Check again. Refer to

AT-53, "Road Test"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 10.

10.

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.

11.

DETECT MALFUNCTIONING ITEM

Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to

AT-59,

"Symptom Chart"

(Symptom No.13).

OK or NG

OK

>> GO TO 9.

NG

>> Repair or replace damaged parts.

A/T Does Not Lock-up

INFOID:0000000001327373

SYMPTOM:

A/T does not lock-up at the specified speed.

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?

SCIA5199E

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-191

< SERVICE INFORMATION >

D

E

F

G

H

I

J

K

L

M

A

B

AT

N

O

P

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 FLUID LEVEL

Check A/T fluid level. Refer to

AT-11, "Checking A/T Fluid"

.

OK or NG

OK

>> GO TO 3.

NG

>> Refill ATF.

3.

CHECK LINE PRESSURE

Check line pressure at the engine stall point. Refer to

AT-49,

"Inspections Before Trouble Diagnosis"

.

OK or NG

OK

>> GO TO 6.

NG-1

>> Line pressure high: GO TO 4.

NG-2

>> Line pressure low: GO TO 5.

4.

DETECT MALFUNCTIONING ITEM

1.

Check control valve with TCM. Refer to

AT-215, "Control Valve with TCM and A/T Fluid Temperature Sen-

sor 2"

.

2.

Disassemble A/T. Refer to

AT-267

.

3.

Check the following.

-

Oil pump assembly. Refer to

AT-285, "Oil Pump"

.

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace damaged parts.

5.

DETECT MALFUNCTIONING ITEM

1.

Check control valve with TCM. Refer to

AT-215, "Control Valve with TCM and A/T Fluid Temperature Sen-

sor 2"

.

2.

Disassemble A/T. Refer to

AT-267

.

3.

Check the following.

-

Oil pump assembly. Refer to

AT-285, "Oil Pump"

.

-

Power train system. Refer to

AT-267

.

-

Transmission case. Refer to

AT-267

.

OK or NG

OK

>> GO TO 6.

NG

>> Repair or replace damaged parts.

6.

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