Nissan Tiida C11. Manual - part 1334

LINE PRESSURE SOLENOID VALVE

TM-387

< COMPONENT DIAGNOSIS >

[TYPE 2 (4AT: RE4F03B)]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

LINE PRESSURE SOLENOID VALVE

Description

INFOID:0000000001713056

The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in
response to signals sent from the TCM.
The line pressure duty cycle value is not constant when the closed throttle position switch is ON. To
confirm the line pressure duty cycle at low-pressure, the accelerator (throttle) should be open until the
closed throttle position switch is OFF.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001713057

Remarks: Specification data are reference values.

On Board Diagnosis Logic

INFOID:0000000001713058

Diagnostic trouble code “LINE PRESSURE S/V” with CONSULT-III or 11th judgement flicker without CON-
SULT-III is detected when TCM detects an improper voltage drop while it tries to operate the solenoid valve.

Possible Cause

INFOID:0000000001713059

• Harness or connector

(Solenoid circuit is open or shorted.)

• Line pressure solenoid valve

DTC Confirmation Procedure

INFOID:0000000001713060

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 and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.

2.

Touch “START”.

3.

Depress accelerator pedal completely and wait at least 1 second.

4.

If the check result is NG, go to 

TM-387, "Diagnosis Procedure"

.

 WITHOUT CONSULT-III

1.

Start engine.

2.

With brake pedal depressed, shift the lever from “P”

→

“N”

→

“D”

→

“N”

→

“P” positions.

3.

Perform self-diagnosis. Refer to 

TM-350, "Diagnosis Procedure without CONSULT-III"

.

4.

If the check result is NG, go to 

TM-387, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001713062

1.

CHECK INPUT SIGNAL

With CONSULT-III

1.

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

2.

Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.

3.

Read out the value of “LINE PRES DTY” while driving. Check the value changes according to driving
speed.

Item name

Condition

Display value (Approx.)

LINE PRES DTY

Small throttle opening (Low line pressure) 

⇔

 Large 

throttle opening (High line pressure)

0% 

⇔

 94%

TM-388

< COMPONENT DIAGNOSIS >

[TYPE 2 (4AT: RE4F03B)]

LINE PRESSURE SOLENOID VALVE

Without CONSULT-III

1.

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

2.

Check voltage between TCM connector terminals and ground.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 2.

2.

CHECK DROPPING RESISTOR

1.

Turn ignition switch OFF.

2.

Disconnect dropping resistor harness connector in engine room.

3.

Check resistance between terminals.

OK or NG

OK 

>> GO TO 3.

NG

>> Repair or replace damaged parts.

3.

CHECK VALVE RESISTANCE

1.

Turn ignition switch OFF.

2.

Disconnect terminal cord assembly connector in engine room.

Item name

Condition

Display value 
(Approx.)

LINE PRES DTY

Small throttle opening (Low line pressure) 

⇔

 Large throttle opening (High line pres-

sure)

0% 

⇔

 94%

Item

Connec-

tor

Terminal

Condition

Judge-

ment stan-

dard 

(Approx.)

Line pres-
sure sole-
noid valve

E31

1 - Ground

When releasing accelera-
tor pedal after warming 
up engine.

1.5 - 3.0V

When depressing accel-
erator pedal fully after 
warming up engine.

0V

Line pres-
sure sole-
noid valve 
(with drop-
ping resis-
tor)

E31

2 - Ground

When releasing accelera-
tor pedal after warming 
up engine.

4 - 14V

When depressing accel-
erator pedal fully after 
warming up engine.

0V

SCIA3267E

Item

Connector

Terminal

Resistance (Approx.) 

Dropping resistor

E49

1 - 2

12 

Ω

SCIA4950E

LINE PRESSURE SOLENOID VALVE

TM-389

< COMPONENT DIAGNOSIS >

[TYPE 2 (4AT: RE4F03B)]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

3.

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

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4.

 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.

Check continuity between terminal cord assembly harness con-
nector terminal and dropping resistor harness connector termi-
nal.

5.

Check continuity between dropping resistor harness connector
terminal and TCM connector terminal.

6.

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

7.

If OK, check continuity between ground and transaxle assembly.

8.

Reinstall any part removed.

OK or NG

OK

>> GO TO 5.

NG

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

5.

CHECK DTC

Perform 

TM-387, "DTC Confirmation Procedure"

.

OK or NG

OK

>> INSPECTION END

Solenoid valve

Connector

Terminal

Resistance (Approx.) 

Line pressure solenoid 
valve

F30

4 - Ground

2.5 - 5.0 

Ω

SCIA4951E

Item

Connector

Terminal

Continuity

TCM

E31

1

Yes

Terminal cord assembly 
harness connector

F30

4

SCIA3272E

Item

Connector

Terminal

Continuity

Dropping resistor harness 
connector

E49

2

Yes

Terminal cord assembly 
harness connector

F30

4

SCIA7194E

Item

Connector

Terminal

Continuity

TCM

E31

2

Yes

Dropping resistor harness 
connector

E49

1

SCIA7195E

TM-390

< COMPONENT DIAGNOSIS >

[TYPE 2 (4AT: RE4F03B)]

LINE PRESSURE SOLENOID VALVE

NG

>> GO TO 6.

6.

CHECK TCM

1.

Check TCM input/output signals. Refer to 

XX-XX, "*****"

.

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.

Component Inspection

INFOID:0000000001713063

LINE PRESSURE SOLENOID VALVE

• For removal, refer to 

XX-XX, "*****"

.

Resistance Check

• Check resistance between terminal and ground.

Operation Check

• Check solenoid valve by listening for its operating sound while

applying battery voltage to the terminal and ground.

DROPPING RESISTOR

• Check resistance between terminals.

Solenoid valve

Terminal

Resistance (Ap-

prox.)

Line pressure so-

lenoid valve

4

Ground

2.5 - 5 

Ω

SCIA4951E

SCIA3275E

Item

Connector

Terminal

Resistance (Approx.) 

Dropping resistor

E49

1 - 2

12 

Ω

SCIA4950E