Infiniti G35 (V35) Sedan. Manual - part 1362

TM-140

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P0734 A/T 4TH GEAR FUNCTION

3.

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-DIAG RESULTS”. In
case a 1st trip DTC other than P0734 is shown, refer to applicable “TROUBLE DIAGNOSIS FOR
DTC”.

Is “STOP VEHICLE” or “COMPLETED RESULT NG” displayed?

“STOP VEHICLE”>>GO TO 3.
“COMPLETED RESULT NG”>>Go to 

TM-140, "Diagnosis Procedure"

.

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-39, "Intermittent Incident"

.

NO

>> Go to 

TM-140, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000957043

1.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-168, "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-240, "Exploded View"

.

2.

Perform “DTC CONFIRMATION PROCEDURE”. Refer to 

TM-139, "DTC Logic"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

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

TM-226,

"Description"

.

GEAR

: “4” position

Manual mode

: ON

P0735 A/T 5TH GEAR FUNCTION

TM-141

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

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P0735 A/T 5TH GEAR FUNCTION

Description

INFOID:0000000000957044

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 also by mechanical malfunction such
as control valve sticking, improper solenoid valve operation.

DTC Logic

INFOID:0000000000957045

DTC DETECTION LOGIC

*: This is an OBD-II self-diagnostic item.

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 and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.

CHECK ATF TEMPERATURE

  With CONSULT-III

1.

Start the engine.

2.

Select “DATA MONITOR”.

3.

Check ATF temperature is in the following range.

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

2.

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*

AT 5TH GR FNCTN

22th

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

• Harness or connectors

(Solenoid circuits are 
open or shorted.)

• Input clutch solenoid 

valve

• Front brake solenoid 

valve

• Direct clutch solenoid 

valve

• High and low reverse 

clutch solenoid valve

• Each clutch
• Hydraulic control cir-

cuit

ATF TEMP 1

: 20

°

C – 140

°

C

VEHICLE SPEED

: 10 km/h (6 MPH) or more

ACCELE POSI

: 0.6/8 or more

ENGINE SPEED

: TURBINE REV 

−

 50 rpm or more

TURBINE REV

: 300 rpm or more

TM-142

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P0735 A/T 5TH GEAR FUNCTION

3.

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-DIAG RESULTS”. In
case a 1st trip DTC other than P0735 is shown, refer to applicable “TROUBLE DIAGNOSIS FOR
DTC”.

Is “STOP VEHICLE” or “COMPLETED RESULT NG” displayed?

“STOP VEHICLE”>>GO TO 3.
“COMPLETED RESULT NG”>>Go to 

TM-142, "Diagnosis Procedure"

.

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-39, "Intermittent Incident"

.

NO

>> Go to 

TM-142, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000000957046

1.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-168, "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-240, "Exploded View"

2.

Perform “DTC CONFIRMATION PROCEDURE”. Refer to 

TM-141, "DTC Logic"

.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

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

TM-226,

"Description"

.

GEAR

: “5” position

Manual mode

: ON

P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

TM-143

< COMPONENT DIAGNOSIS >

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P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

Description

INFOID:0000000000957047

• The torque converter clutch solenoid valve is activated, with the gear in D

3

, D

4

, D

5

, M3, M4 and M5 by the

TCM in response to signals sent from the vehicle speed sensor and accelerator pedal position sensor (throt-
tle position sensor). Torque converter clutch piston operation will then be controlled.

• Lock-up operation, however, is prohibited when A/T fluid temperature is too low.
• When the accelerator pedal is depressed (less than 1.0/8) in lock-up condition, the engine speed should not

change abruptly. If there is a big jump in engine speed, there is no lock-up.

DTC Logic

INFOID:0000000000957048

DTC DETECTION LOGIC

*: This is an OBD-II self-diagnostic item.

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 and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.

CHECK DTC DETECTION

  With CONSULT-III

1.

Start the engine.

2.

Select “DATA MONITOR”.

3.

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

  With GST

Follow the procedure “With CONSULT-III”.
Is “P0740 TCC SOLENOID/CIRC” detected?

YES

>> Go to 

TM-143, "Diagnosis Procedure"

.

NO

>> Check Intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000957049

1.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to 

TM-168, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace the control valve with TCM. Refer to 

TM-240, "Exploded View"

.

NO

>> Repair or replace damaged parts.

DTC

Item

(CONSULT-III screen 

terms)

A/T CHECK indicator 
lamp judgment flicker

Diagnostic item is de-

tected when...

Possible cause

P0740*

TCC SOLENOID/CIRC

3rd

Normal voltage not ap-
plied to solenoid due to 
cut line, short, or the like.

• Harness or connectors

(Solenoid circuit is 
open or shorted.)

• Torque converter 

clutch solenoid valve

VHCL/S SE-A/T

: 80 km/h (50 MPH) or more

ACCELE POSI

: 0.5/8 – 1.0/8

SLCT LVR POSI

: “D” position

Drive location

: Driving the vehicle uphill (increased engine load) will help maintain the driving 
conditions required for this test.