Infiniti M45 (Y34). Manual — part 102

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-293

D

E

F

G

H

I

J

K

L

M

A

B

AT

Cannot Be Changed to Manual Mode

ACS001MB

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-230, "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-160, "DTC P1716 TURBINE REVOLUTION SEN-

SOR"

.

NO

>> INSPECTION END

AT-294

TROUBLE DIAGNOSIS FOR SYMPTOMS

A/T Does Not Shift: 5th Gear

→

4th Gear

ACS001G6

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-110, "DTC P0705 PARK/NEUTRAL POSITION

SWITCH"

,

AT-234, "DTC P1841 ATF PRESSURE SWITCH 1"

.

NO

>> GO TO 2.

2.

CHECK A/T FLUID LEVEL

Check A/T fluid level. 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-305, "Checking of A/T Position"

.

OK or NG

OK

>> GO TO 4.

NG

>> Adjust control linkage. Refer to

AT-305, "Adjustment of

A/T Position"

.

4.

MANUAL MODE SWITCH

Check the manual mode switch. Refer to

AT-230, "DTC P1815 MANUAL MODE SWITCH"

.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace damaged parts.

SAT638A

SCIA1612E

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-295

D

E

F

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AT

5.

CHECK A/T FLUID CONDITION

1.

Remove oil pan. Refer to

AT-312, "Control Valve Assembly"

.

2.

Check A/T fluid condition. Refer to

AT-52, "Fluid Condition

Check"

.

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-63,

"Symptom Chart"

.

OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace damaged parts.

7.

CHECK SYMPTOM

Check again. Refer to

AT-60, "Cruise Test - Part 3"

.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 6.

8.

CHECK TCM

1.

Check TCM input/output signal. Refer to

AT-86, "TCM Input/Output Signal Reference Values"

.

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-63,

"Symptom Chart"

.

OK or NG

OK

>> GO TO 7.

NG

>> Repair or replace damaged parts.

SCIA5199E

AT-296

TROUBLE DIAGNOSIS FOR SYMPTOMS

A/T Does Not Shift: 4th Gear

→

3rd Gear

ACS001G7

SYMPTOM:

When shifted from 4M to 3M position in manual mode, does not downshift from 4th to 3rd gear.

DIAGNOSTIC PROCEDURE

1.

CHECK SELF-DIAGNOSTIC RESULTS

Execute self-diagnosis.
Do the self-diagnostic results indicate PNP switch, ATF pressure switch 1, ATF pressure switch 3?

YES

>> Check the malfunctioning system. Refer to

AT-110, "DTC P0705 PARK/NEUTRAL POSITION

SWITCH"

,

AT-234, "DTC P1841 ATF PRESSURE SWITCH 1"

,

AT-238, "DTC P1843 ATF PRES-

SURE SWITCH 3"

.

NO

>> GO TO 2.

2.

CHECK A/T FLUID LEVEL

Check A/T fluid level. 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-305, "Checking of A/T Position"

.

OK or NG

OK

>> GO TO 4.

NG

>> Adjust control linkage. Refer to

AT-305, "Adjustment of

A/T Position"

.

4.

MANUAL MODE SWITCH

Check the manual mode switch. Refer to

AT-230, "DTC P1815 MANUAL MODE SWITCH"

.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace damaged parts.

SAT638A

SCIA1612E