Infiniti F50. Manual — part 96

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-269

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6.

PERFORM TCM INSPECTION

1.

Perform TCM input/output signal inspection.

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.

7.

DETECT MALFUNCTIONING ITEM

●

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

AT-60,

"Symptom Chart"

.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace damaged parts.

AT-270

TROUBLE DIAGNOSIS FOR SYMPTOMS

Cannot Be Changed to Manual Mode

ECS0089N

SYMPTOM:

Does not change to manual mode when manual shift gate is used.

DIAGNOSTIC PROCEDURE

1.

MANUAL MODE SWITCH

Check the manual mode switch. Refer to

AT-215, "DTC P1815 MANUAL MODE SWITCH"

.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace damaged parts.

2.

CHECK SELF-DIAGNOSTIC RESULTS

Execute self-diagnosis.

Do the self-diagnostic results indicate turbine revolution sensor?

YES

>> Check the malfunctioning system. Refer to

AT-152, "DTC P1716 TURBINE REVOLUTION SEN-

SOR"

.

NO

>> INSPECTION END

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-271

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A/T Does Not Shift: 5th gear

→

4th gear

ECS0089O

SYMPTOM:

When shifted from 5M to 4M position in manual mode, does not downshift from 5th to 4th gear.

DIAGNOSTIC PROCEDURE

1.

CHECK SELF-DIAGNOSTIC RESULTS

Execute self-diagnosis.
Do the self-diagnostic results indicate PNP switch, ATF pressure switch 1?

YES

>> Check the malfunctioning system. Refer to

AT-105, "DTC P0705 PARK/NEUTRAL POSITION

SWITCH"

,

AT-219, "DTC P1841 ATF PRESSURE SWITCH 1"

.

NO

>> GO TO 2.

2.

CHECK A/T FLUID LEVEL

Check A/T fluid level again. Refer to

AT-14, "Checking A/T Fluid"

.

OK or NG

OK

>> GO TO 3.

NG

>> Refill ATF.

3.

CHECK CONTROL LINKAGE

Check the control linkage.

●

Refer to

AT-282, "Checking of A/T Position"

.

OK or NG

OK

>> GO TO 4.

NG

>> Adjust control linkage. Refer to

AT-282, "Adjustment of

A/T Position"

.

4.

MANUAL MODE SWITCH

Check the manual mode switch. Refer to

AT-215, "DTC P1815 MANUAL MODE SWITCH"

.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace damaged parts.

SAT638A

SCIA1612E

AT-272

TROUBLE DIAGNOSIS FOR SYMPTOMS

5.

CHECK A/T FLUID CONDITION

1.

Remove oil pan. Refer to

AT-289, "Control Valve Assembly"

.

2.

Check A/T fluid condition.

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 9.

6.

DETECT MALFUNCTIONING ITEM

●

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

AT-60,

"Symptom Chart"

.

OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace damaged parts.

7.

CHECK SYMPTOM

Check again.
OK or NG

OK

>> INSPECTION END

NG

>> GO TO 8.

8.

PERFORM TCM INSPECTION

1.

Perform TCM input/output signal inspection.

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.

9.

DETECT MALFUNCTIONING ITEM

●

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

AT-60,

"Symptom Chart"

.

OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace damaged parts.

SAT171B