Nissan Tiida C11. Manual - part 1255

DTC P0734 A/T 4TH GEAR FUNCTION

TM-71

< COMPONENT DIAGNOSIS >

[TYPE 1 (4AT: RE4F03B)]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

-

Valve, sleeve and plug slide along valve bore under their own weight.

-

Valve, sleeve and plug are free from burrs, dents and scratches.

-

Control valve springs are free from damage, deformation and fatigue.

-

Hydraulic line is free from obstacles.

OK or NG

OK

>> GO TO 6.

NG

>> Repair control valve.

6.

CHECK SHIFT-UP (D

3

 TO D

4

)

During 

TM-183, "Cruise Test - Part 1"

.

Does A/T shift from D

3

 to D

4

 at the specified speed?

YES

>> GO TO 11.

NO

>> Check control valve again. Repair or replace control

valve assembly.

7.

CHECK VALVE RESISTANCE

1.

Remove control valve assembly. Refer to 

TM-191, "Control Valve Assembly and Accumulators"

.

-

Line pressure solenoid valves

2.

Check resistance between terminal cord assembly harness con-
nector terminal and ground.

OK or NG

OK

>> GO TO 8.

NG

>> Replace solenoid valve assembly.

8.

CHECK VALVE OPERATION

1.

Remove control valve assembly. Refer to 

TM-191, "Control Valve Assembly and Accumulators"

.

-

Line pressure solenoid valves

2.

Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.

OK or NG

OK

>> GO TO 9.

NG

>> Replace solenoid valve assembly.

9.

CHECK CONTROL VALVE

1.

Disassemble control valve assembly. Refer to 

TM-243, "Control Valve Assembly"

.

2.

Check line pressure circuit valves for sticking.

-

Pilot valve

-

Shift solenoid valve A

-

Shift solenoid valve B

OK or NG

OK

>> GO TO 10.

SCIA7190E

Solenoid valve

Terminal

Resistance

(Approx.)

Line pressure solenoid valve

4

Ground

2.5 - 5 

Ω

SCIA3457E

SCIA3275E

TM-72

< COMPONENT DIAGNOSIS >

[TYPE 1 (4AT: RE4F03B)]

DTC P0734 A/T 4TH GEAR FUNCTION

NG

>> Repair control valve.

10.

CHECK SHIFT-UP (D

3

 TO D

4

)

During 

TM-183, "Cruise Test - Part 1"

.

Does A/T shift from D

3

 to D

4

 at the specified speed?

YES

>> GO TO 11.

NO

>> Check control valve again. Repair or replace control

valve assembly.

11.

CHECK DTC

Perform 

TM-68, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

NG

>> Perform 

TM-183, "Cruise Test - Part 1"

 again and return to the start point of this test group.

SCIA7190E

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

TM-73

< COMPONENT DIAGNOSIS >

[TYPE 1 (4AT: RE4F03B)]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

Description

INFOID:0000000001694334

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

4

 and D

3

, by the TCM in response

to signals sent from the vehicle speed sensor and the ECM (throttle opening). Lock-up 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 2/8) on lock-up condition, the engine speed should not

change abruptly. If there is an abrupt change in engine speed, there is no lock-up.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001694335

Remarks: Specification data are reference values.

On Board Diagnosis Logic

INFOID:0000000001694336

• This is an OBD self-diagnostic item.
• Diagnostic trouble code “P0740 T/C CLUTCH SOL/V” with CONSULT-III or 7th judgement flicker without

CONSULT-III is detected when TCM detects an improper voltage drop while it tries to operate solenoid
valve.

Possible Cause

INFOID:0000000001694337

• Torque converter clutch solenoid valve
• Harness or connector

(The solenoid circuit is open or shorted.)

DTC Confirmation Procedure

INFOID:0000000001694338

CAUTION:

• Always drive vehicle at a safe speed.
• If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at

least 10 seconds before continuing.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

 WITH CONSULT-III

1.

Turn ignition switch ON. (Do not start engine.)

2.

Select “DATA MONITOR” mode for “A/T” with CONSULT-III and wait at least 1 second.

3.

Touch “START”.

4.

Start engine and maintain the following conditions for at least 5 consecutive seconds.
VEHICLE SPEED: 80 km/h (50 MPH) or more
THROTTLE POSI: 0.5/8 - 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.

5.

If the check result is NG, go to 

TM-73, "Diagnosis Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-III”.

 WITHOUT CONSULT-III

1.

Start engine.

2.

Drive vehicle in D

1

→

 D

2

→

 D

3

→

 D

4

→

 D

4

 lock-up position.

3.

Perform self-diagnosis. Refer to 

TM-38, "Diagnosis Procedure without CONSULT-III"

.

4.

If the check result is NG, go to 

TM-73, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001694340

1.

CHECK INPUT SIGNAL

Item name

Condition

Display value (Approx)

TCC S/V DUTY

Lock-up OFF 

⇔

 Lock-up ON

4% 

⇔

 94%

TM-74

< COMPONENT DIAGNOSIS >

[TYPE 1 (4AT: RE4F03B)]

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE

With CONSULT-III

1.

Start engine.

2.

Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-III.

3.

Read out the value of “TCC S/V DUTY” while driving. Check the value changes according to driving
speed.

Without CONSULT-III

1.

Start engine.

2.

Check voltage between TCM connector terminal and ground.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 2.

2.

CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect TCM connector.

3.

Check resistance between TCM connector terminal and ground.

OK or NG

OK 

>> GO TO 5.

NG

>> GO TO 3.

3.

 CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY HARNESS CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect terminal cord assembly harness connector and TCM connector.

3.

Check continuity between terminal cord assembly harness con-
nector terminal and TCM connector terminal.

4.

If OK, check harness for short to ground and short to power.

5.

If OK, check continuity between ground and transaxle assembly.

6.

Reinstall any part removed.

OK or NG

OK

>> GO TO 4.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

Monitor item

Condition

Display value 
(Approx)

TCC S/V DUTY

Lock-up OFF 

⇔

 Lock-up ON

4% 

⇔

 94%

Name

Connec-

tor

Terminal

Condition

Judgement 

standard 

(Approx.)

Torque con-
verter clutch 
solenoid 
valve

E31

3 - Ground

When A/T performs lock-
up.

8 - 15V

When A/T does not per-
form lock-up.

0V

SCIA3261E

Solenoid Valve

Connector

Terminal 

Resistance (Ap-

prox.)

Torque converter clutch 
solenoid valve

E31

3 - Ground

5 - 20 

Ω

SCIA3262E

Item

Connector

Terminal Continuity

TCM

E31

3

Yes

Terminal cord assembly 
harness connector

F30

5

SCIA3263E