Infiniti EX35. Manual - part 1419

 

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Infiniti EX35. Manual - part 1419

 

 

TM-64

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P0734 A/T 4TH GEAR FUNCTION

P0734 A/T 4TH GEAR FUNCTION

Description

INFOID:0000000003130502

This malfunction is detected when the A/T does not shift into 4th gear position as instructed by TCM. This is
not only caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as
control valve sticking, improper solenoid valve operation, etc.

DTC Logic

INFOID:0000000003130503

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.

1.

CHECK ATF TEMPERATURE

 With CONSULT-III

1.

Start the engine.

2.

Select “Data Monitor” mode for “TRANSMISSION”.

3.

Check ATF temperature is in the following range.

 With GST

1.

Start the engine.

2.

Drive vehicle for approximately 5 minutes in urban areas, GO TO 2.

Is ATF temperature within specified range?

YES

>> GO TO 2.

NO

>> Drive vehicle to warm ATF or stop engine to cool ATF.

2.

CHECK SYMPTOM 1

 With CONSULT-III

1.

Select “DTC & SRT Confirmation” for “TRANSMISSION”.

2.

Select “4TH GR FNCTN P0734” of “DTC WORK SUPPORT” mode.

3.

Drive vehicle and maintain the following conditions.

DTC

Item

(CONSULT-III screen 

terms)

A/T CHECK indicator 
lamp judgment flicker

Diagnostic item is de-

tected when...

Possible cause

P0734

A/T 4TH GR FNCTN

21st

TCM detects any incon-
sistency in the actual 
gear ratio.

• Input clutch solenoid 

valve

• Front brake solenoid 

valve

• Direct clutch solenoid 

valve

• High and low reverse 

clutch solenoid valve

• Each clutch and brake
• Hydraulic control cir-

cuit

ATF TEMP 1

: 20

°

C (68

°

F) – 140

°

C (284

°

F)

MANU MODE SW

: ON

GEAR

: “4” position

ACCELE POSI

: 0.6/8 or more

VEHICLE SPEED

: 10 km/h (6 MPH) or more

P0734 A/T 4TH GEAR FUNCTION

TM-65

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

4.

Keep the current driving status for at least 5 consecutive seconds if CONSULT-III screen changes from
“OUT OF CONDITION” to “TESTING”.

CAUTION:

If “TESTING” does not appear on CONSULT-III for a long time, select “Self Diagnostic Results”
mode for “TRANSMISSION”. In case a 1st trip DTC other than “P0734 A/T 4TH GR FNCTN” is
shown, refer to “SELF DIAGNOSTIC RESULTS”. Refer to 

TM-40, "CONSULT-III Function (TRANS-

MISSION)"

.

 With GST

1.

Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.

2.

Check DTC.

Is “STOP VEHICLE” or “COMPLETED RESULT NG” displayed? / Is “P0734 A/T 4TH GR FNCTN” detected?

YES-1 >> “STOP VEHICLE”: GO TO 3.
YES-2 >> “COMPLETED RESULT NG”: Go to 

TM-65, "Diagnosis Procedure"

.

YES-3 >> “P0734 A/T 4TH GR FNCTN” is detected: Go to 

TM-65, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

3.

CHECK SYMPTOM 2

 With CONSULT-III

1.

Stop vehicle.

2.

Drive vehicle in “D” position allowing it to shift from 1st to 5th gear and check shift timing and shift shock.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

NO

>> Confirm malfunction phenomena by “ROAD TEST” to repair malfunctioning part. Refer to 

TM-149,

"Description"

.

Diagnosis Procedure

INFOID:0000000003130504

1.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-89, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts.

2.

REPLACE CONTROL VALVE WITH TCM

1.

Replace control valve with TCM. Refer to 

TM-162, "Exploded View"

.

2.

Perform “DTC CONFIRMATION PROCEDURE”. Refer to 

TM-64, "DTC Logic"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Confirm malfunction phenomena by “ROAD TEST” to repair malfunctioning part. Refer to 

TM-149,

"Description"

.

ENGINE SPEED

: TURBINE REV 

 50 rpm or more

TURBINE REV

: 300 rpm or more

Manual mode switch

: ON

Gear position

: “4” position

Accelerator opening

: 0.6/8 or more

Vehicle speed

: 10 km/h (6 MPH) or more

TM-66

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P0735 A/T 5TH GEAR FUNCTION

P0735 A/T 5TH GEAR FUNCTION

Description

INFOID:0000000003130505

This malfunction is detected when the A/T does not shift into 5th gear position as instructed by TCM. This is
not only caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as
control valve sticking, improper solenoid valve operation, etc.

DTC Logic

INFOID:0000000003130506

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.

1.

CHECK ATF TEMPERATURE

 With CONSULT-III

1.

Start the engine.

2.

Select “Data Monitor” mode for “TRANSMISSION”.

3.

Check ATF temperature is in the following range.

 With GST

1.

Start the engine.

2.

Drive vehicle for approximately 5 minutes in urban areas, GO TO 2.

Is ATF temperature within specified range?

YES

>> GO TO 2.

NO

>> Drive vehicle to warm ATF or stop engine to cool ATF.

2.

CHECK SYMPTOM 1

 With CONSULT-III

1.

Select “DTC & SRT Confirmation” for T“RANSMISSION”.

2.

Select “5TH GR FNCTN P0735” of “DTC WORK SUPPORT” mode.

3.

Drive vehicle and maintain the following conditions.

DTC

Item

(CONSULT-III screen 

terms)

A/T CHECK indicator 
lamp judgment flicker

Diagnostic item is de-

tected when...

Possible cause

P0735

A/T 5TH GR FNCTN

22nd

TCM detects any incon-
sistency in the actual 
gear ratio.

• Input clutch solenoid 

valve

• Front brake solenoid 

valve

• Direct clutch solenoid 

valve

• High and low reverse 

clutch solenoid valve

• Each clutch and brake
• Hydraulic control cir-

cuit

ATF TEMP 1

: 20

°

C (68

°

F) – 140

°

C (284

°

F)

MANU MODE SW

: ON

GEAR

: “5” position

ACCELE POSI

: 0.6/8 or more

VEHICLE SPEED

: 10 km/h (6 MPH) or more

P0735 A/T 5TH GEAR FUNCTION

TM-67

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

4.

Keep the current driving status for at least 5 consecutive seconds if CONSULT-III screen changes from
“OUT OF CONDITION” to “TESTING”.

CAUTION:

If “TESTING” does not appear on CONSULT-III for a long time, select “Self Diagnostic Results”
mode for “TRANSMISSION”. In case a 1st trip DTC other than “P0735 A/T 5TH GR FNCTN” is
shown, refer to “SELF DIAGNOSTIC RESULTS”. Refer to 

TM-40, "CONSULT-III Function (TRANS-

MISSION)"

.

 With GST

1.

Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.

2.

Check DTC.

Is “STOP VEHICLE” or “COMPLETED RESULT NG” displayed? / Is “P0735 A/T 5TH GR FNCTN” detected?

YES-1 >> “STOP VEHICLE”: GO TO 3.
YES-2 >> “COMPLETED RESULT NG”: Go to 

TM-67, "Diagnosis Procedure"

.

YES-3 >> “P0735 A/T 5TH GR FNCTN” is detected: Go to 

TM-67, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

3.

CHECK SYMPTOM 2

 With CONSULT-III

1.

Stop vehicle.

2.

Drive vehicle in “D” position allowing it to shift from 1st to 5th gear and check shift timing and shift shock.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

NO

>> Confirm malfunction phenomena by “ROAD TEST” to repair malfunctioning part. Refer to 

TM-149,

"Description"

.

Diagnosis Procedure

INFOID:0000000003130507

1.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-89, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace damaged parts.

2.

REPLACE CONTROL VALVE WITH TCM

1.

Replace control valve with TCM. Refer to 

TM-162, "Exploded View"

2.

Perform “DTC CONFIRMATION PROCEDURE”. Refer to 

TM-66, "DTC Logic"

.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Confirm malfunction phenomena by “ROAD TEST” to repair malfunctioning part. Refer to 

TM-149,

"Description"

.

ENGINE SPEED

: TURBINE REV 

 50 rpm or more

TURBINE REV

: 300 rpm or more

Manual mode switch

: ON

Gear position

: “5” position

Accelerator opening

: 0.6/8 or more

Vehicle speed

: 10 km/h (6 MPH) or more

 

 

 

 

 

 

 

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