Nissan Versa (N17): P0846 Transmission fluid pressure SEN/SW B

Nissan Versa 2nd generation (N17) Service Manual / Transmission & driveline / Transaxle & transmission (TM) / P0846 Transmission fluid pressure SEN/SW B

DTC Logic

DTC DETECTION LOGIC

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 diagnosis 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 pressure − 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 angle: Between −1.3/8 and +1.3/8 inclusive

- Secondary pressure sensor

- Control valve assembly

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

Start the engine.
Shift the selector lever to "D" position.
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.
Stop the vehicle.
Check the first trip DTC.

Is "P0846"detected?

YES >> Go to TM "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK TCM INPUT SIGNAL

Start the engine.
Check voltage between TCM connector terminal and ground.

Is the inspection result normal?

YES >> Check intermittent incident. Refer to GI "Intermittent Incident".

NO >> There is a malfunction of secondary pressure sensor value. Replace transaxle assembly. Refer to TM "Removal and Installation".

P0746 Pressure control solenoid A

P0847 Transmission fluid pressure SEN/SW B

Other materials:

Instrument panel
1. Headlight/turn signal switch/fog light switch (if so equipped) 2. Driver's supplemental air bag (P. 1-39) Horn 3. Meters and gauges. Warning and indicator lights 4. Wiper and washer switch 5. Vents 6. Rear window defroster switch 7. Front passenger air bag status light 8. Hazard warn ...

Input shaft and gear
Exploded View 1. Input shaft front bearing 2. Input shaft 3. Snap ring 4. Input shaft rear bearing 5. Adapter plate 6. Bushing 7. 5th input gear 8. 5th-reverse baulk ring 9. Synchronizer lever 10. 5th-reverse synchronizer hub 11. 5th-reverse coupling sleeve 12. Lock washer 13. Retaining pi ...

Nissan Versa (N17): P0846 Transmission fluid pressure SEN/SW B

P0746 Pressure control solenoid A

P0847 Transmission fluid pressure SEN/SW B

Other materials:

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