Nissan Versa Note. Manual - part 813

TM-132

< BASIC INSPECTION >

[CVT: RE0F11A]

LINE PRESSURE TEST

LINE PRESSURE TEST

Work Procedure

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INSPECTION

1. Check the engine oil level. Replenish if necessary. Refer to 

LU-7, "Inspection"

.

2. Check for CVT fluid leaks. Refer to 

TM-226, "Inspection"

.

3. Drive for about 10 minutes to warm up the vehicle so that the CVT fluid temperature is 50 to 80

°C (122 to

176

°F).

4. Stop the vehicle, apply the parking brake and block the tires. 
5. Start the engine.
6. Select “Data Monitor” in “TRANSMISSION”.
7. Select “LINE PRESSURE”.
8. Measure the line pressure at both idle and the stall speed.

CAUTION:

Keep brake pedal pressed all the way down during measurement.

NARROWING-DOWN MALFUNCTIONING PARTS

Line pressure

: 

TM-257, "Line Pressure"

Judgment Possible 

cause

Idle speed

Low for all positions 
(“P”, “R”, “N”, “D”, “L”)

Possible causes include malfunctions in the pressure supply system and low oil pump output.
For example:
• Oil pump wear
• Damage of chain and sprocket
• Pressure regulator valve or plug sticking or spring fatigue
• Oil strainer 

⇒ oil pump ⇒ pressure regulator valve passage oil leak

• Engine idle speed too low

Only low for a specific 
position

Possible causes include an oil pressure leak in a passage or device related to the position after 
the pressure is distributed by the manual valve.

High

Possible causes include a sensor malfunction or malfunction in the line pressure adjustment 
function.
For example:
• Accelerator pedal position signal malfunction
• CVT fluid temperature sensor malfunction
• Line pressure solenoid malfunction (sticking in OFF state, filter clog, cut line)
• Pressure regulator valve or plug sticking

Stall speed

Line pressure does not 
rise higher than the line 
pressure for idle.

Possible causes include a sensor malfunction or malfunction in the pressure adjustment func-
tion.
For example:
• TCM  malfunction
• Line pressure solenoid malfunction (shorting, sticking in ON state)
• Pressure regulator valve or plug sticking

The pressure rises, but 
does not enter the 
standard position.

Possible causes include malfunctions in the pressure supply system and malfunction in the pres-
sure adjustment function.
For example:
• Oil pump wear
• Line pressure solenoid malfunction (sticking, filter clog)
• Pressure regulator valve or plug sticking

Only low for a specific 
position

Possible causes include an oil pressure leak in a passage or device related to the position after 
the pressure is distributed by the manual valve.

CVT POSITION

TM-133

< BASIC INSPECTION >

[CVT: RE0F11A]

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CVT POSITION

Inspection

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1. Turn ON the ignition switch with the shift selector in the "P" position. 
2. Press the shift selector handle button with the brake pedal depressed, and confirm that the shift selector

can be moved from the "P" position. Also confirm that shift selector will not move from the "P" position

without depressing the brake pedal. 

3. Move the shift selector and check for “excessive effort,” “sticking,” “noise” or “rattle”.
4. Confirm that shift selector stops at each position with the feel of engagement when it is moved through all

the positions. Check whether or not the actual position the shift selector is in matches the position shown

by the transaxle body.

5. The method of operating the shift selector to individual positions

correctly should be as shown.

• (A): Press shift selector button to operate shift selector, while

depressing the brake pedal.

• (B): Press shift selector button to operate shift selector.

• (C): Shift selector can be operated without pressing shift

selector button.

6. When the shift selector handle button is pressed without apply-

ing forward/backward force to the shift selector at “P”, “R”, “N”

and “D” positions, there should be no “sticking” of the button. 

7. Confirm the back-up lamps illuminate only when shift selector is

placed in the “R” position. Confirm the back-up lamps do not illu-

minate when the shift selector is pushed toward the “R” position side when shift selector is in the “P” or “N”

position.

8. Check that the engine can be started only when the shift selector is in the “P” and “N” positions.
9. Check that the transaxle is locked when the shift selector is in the "P" position.

Adjustment

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1. Move the shift selector to the “P” position.

CAUTION:

Rotate the wheels at least a quarter turn and be certain the transaxle is locked in the "P" position.

2. Remove nut (A) and set manual lever (B) to the “P” position. 

CAUTION:

Do not apply force to the manual lever. 

3. Tighten nuts to the specified torque. Refer to 

TM-232, "Exploded

View"

.

CAUTION:

Do not move the manual lever when tightening. 

WCIA0620E

JSDIA1875ZZ

TM-134

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

U0073 COMMUNICATION BUS A OFF

DTC/CIRCUIT DIAGNOSIS

U0073 COMMUNICATION BUS A OFF

Description

INFOID:0000000009019647

CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent malfunction detection ability.

Many electronic control units are equipped onto a vehicle, and each control unit shares information and links

with other control units during operation (not independently). In CAN communication, control units are con-

nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission

with less wiring. Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

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DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at

least 10 seconds, then perform the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Start the engine and wait for at least 5 seconds.

2. Check the DTC.
Is “U0073” detected?

YES

>> Go to 

TM-134, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009019649

For the diagnosis procedure, refer to 

LAN-15, "Trouble Diagnosis Flow Chart"

. 

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

U0073

Control Module Communica-
tion Bus A Off

TCM communication blockage lasts for 2 sec-
onds or more when turning ON the ignition 
switch. (Communication not established.)

Harness or connector
(CAN communication line is error)

U0100 LOST COMMUNICATION (ECM A)

TM-135

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

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U0100 LOST COMMUNICATION (ECM A)

Description

INFOID:0000000009019650

CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent malfunction detection ability.

Many electronic control units are equipped onto a vehicle, and each control unit shares information and links

with other control units during operation (not independently). In CAN communication, control units are con-

nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission

with less wiring. Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000009019651

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at

least 10 seconds, then perform the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Start the engine and wait for at least 5 seconds.

2. Check the DTC.
Is “U0100” detected?

YES

>> Go to 

TM-135, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009019652

For the diagnosis procedure, refer to 

LAN-15, "Trouble Diagnosis Flow Chart"

. 

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

U0100

Lost Communication With 
ECM/PCM A 

When the ignition switch is ON, TCM is un-
able to receive the CAN communications 
signal from ECM continuously for 2 sec-
onds or more.

• ECM
• Harness or connector

(CAN communication line is open or 
shorted)