Nissan Versa Sedan. Manual - part 867

 

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Nissan Versa Sedan. Manual - part 867

 

 

TM-374

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

P0846 TRANSMISSION FLUID PRESSURE SEN/SW B

P0846 TRANSMISSION FLUID PRESSURE SEN/SW B

DTC Logic

INFOID:0000000009268179

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

Be careful of the driving speed.

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.

CHECK DTC DETECTION

1. Start the engine.

2. Shift the selector lever to “D” position.

3. Drive the vehicle at a constant velocity of 40 km/h (25 MPH) at lease for 10 seconds.

CAUTION:

At the same time, the accelerator pedal angle must be maintained constant.

4. Stop the vehicle.

5. Check the first trip DTC.
Is “P0846”detected?

YES

>> Go to 

TM-374, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009268180

1.

CHECK TCM INPUT SIGNAL

1. Start the engine.

2. Check  voltage between TCM connector terminal and ground.

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

P0846

Transmission Fluid Pressure 
Sensor/Switch B Circuit 
Range/Performance

The detection conditions continuously for 5 
seconds or more under the following diagno-
sis conditions:
• Diagnosis conditions
- Selector lever: “D” position
- The primary pulley speed experienced 306 

rpm or more and the secondary pulley 
speed experienced 230 rpm or more at 
least once.

- Wheel spin is not being detected.
- The rate of change in pulley ratio: Between 

−0.09 and +0.09 inclusive

- Solenoid valve output current: 750 mA or 

more

- GND short diagnosis of the solenoid valve 

circuit is not satisfied. 

- TCM power supply voltage: More than 11 V
• Detection conditions
- After the value of “Actual secondary pres-

sure 

− Target secondary pressure” exceeds 

0.675 MPa:

• The rate of change in vehicle speed [km/h 

(MPH)]: Between 

−49 (−30) and +49 (+30) 

inclusive

• The rate of change in accelerator pedal an-

gle: Between 

−1.3/8 and +1.3/8 inclusive

• Secondary pressure sensor
• Control valve assembly

P0846 TRANSMISSION FLUID PRESSURE SEN/SW B

TM-375

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

Is the inspection result normal?

YES 

>> Check intermittent incident. Refer to 

GI-45, "Intermittent Incident"

.

NO

>> There is a malfunction of  secondary pressure sensor value. Replace  transaxle assembly. Refer

to 

TM-452, "Removal and Installation"

.

TCM

Ground

Condition

Voltage

Connector

Terminal

F44

16

Ground

• Selector lever: “N” position
• At idle

Approx. 0.88 – 0.92 V

TM-376

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

P0847 TRANSMISSION FLUID PRESSURE SEN/SW B

P0847 TRANSMISSION FLUID PRESSURE SEN/SW B

DTC Logic

INFOID:0000000009268181

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.

CHECK DTC DETECTION

With CONSULT

1. Start the engine.

2. Select “Data Monitor” in “TRANSMISSION”.

3. Select “FLUID TEMP”.

4. Maintain the following conditions for 10 seconds or more.

5. Check the first trip DTC.

With GST

1. Start the engine and wait for at least 10 seconds.

CAUTION:

When the ambient temperature is 

−20°C (−4°F) or less and the engine is cold, warm up the engine

for approximately 5 minutes. 

2. Check the first trip DTC.
Is “P0847”detected?

YES

>> Go to 

TM-376, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009268182

1.

CHECK CIRCUIT BETWEEN TCM AND CVT UNIT (PART 1)

1. Turn ignition switch OFF.

2. Disconnect  TCM connector and  CVT unit connector.

3. Check  continuity between  TCM harness connector terminals and  CVT unit harness connector terminals.

Is the inspection result normal?

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

P0847

Transmission Fluid Pressure 
Sensor/Switch B Circuit Low

The secondary pressure sensor voltage is 
0.09 V or less continuously for 5 seconds or 
more under the following diagnosis condi-
tions:
• Diagnosis conditions
- CVT fluid temperature: 

−20°C (−4°F) or 

more

- TCM power supply voltage: More than 11 V

• Harness or connector

(Secondary pressure sensor circuit is 
open or shorted to ground) 

• Secondary pressure sensor 
• Control valve assembly

FLUID TEMP

: 

−19°C (−2.2°F) or more

TCM

CVT unit

Continuity

Connector

Terminal

Connector

Terminal

F44

11

F46

25

Existed

16

14

26

16

P0847 TRANSMISSION FLUID PRESSURE SEN/SW B

TM-377

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

YES 

>> GO TO 2.

NO

>> Repair or replace malfunctioning parts.

2.

CHECK CIRCUIT BETWEEN TCM AND CVT UNIT (PART 2)

Check  continuity between  TCM harness connector terminals and ground.

Is the inspection result normal?

YES 

>> GO TO 3.

NO

>> Repair or replace malfunctioning parts.

3.

CHECK TCM INPUT SIGNALS

1. Connect all connectors removed. 

2. Start the engine.

3. Check  voltage between TCM harness connector terminal and ground. 

Is the inspection result normal?

YES 

>> Check intermittent incident. Refer to 

GI-45, "Intermittent Incident"

.

NO

>> There is malfunction of  secondary pressure sensor. Replace  transaxle assembly. Refer to 

TM-

452, "Removal and Installation"

.

TCM

Ground

Continuity

Connector

Terminal

F44

16

Ground

Not existed

26

TCM

Ground

Condition

Voltage

Connector

Terminal

F44

16

Ground

• Selector lever: “N” position
• At idle

Approx. 0.88 – 0.92 V

 

 

 

 

 

 

 

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