Nissan Sentra Service Manual: P2857 Clutch A Pressure

Nissan Sentra Service Manual / Transmission & driveline / Transaxle & transmission / CVT: RE0F11A / P2857 Clutch A Pressure

DTC Logic

DTC DETECTION LOGIC

DTC

CONSULT screen terms (Trouble diagnosis content)

DTC detection condition

Possible causes

P2857

CLUTCH A PRESSURE (Clutch A Pressure Engagement Performance)

The auxiliary gearbox gear ratio is 2.232 or more for the auxiliary gearbox 1GR ratio continuously for 5 seconds or more under the following diagnosis conditions:

Diagnosis conditions

Selector lever: Other than вЂњPвЂќ, вЂњRвЂќ and вЂњNвЂќ positions
Accelerator pedal position: 0.7/8 or more
Engine speed: More than 550 rpm
Output speed: More than 300 rpm
Secondary pulley speed: More than 300 rpm
Command for the 1GR of auxiliary gearbox is in progress.
Auxiliary gearbox shifting is not in progress.
TCM power supply voltage: More than 11 V

Low brake solenoid valve
Control valve assembly

DTC CONFIRMATION PROCEDURE

CAUTION:

Be sure to perform вЂњTM-226, "Diagnosis Procedure"вЂќ and then perform вЂњDTC CONFIRMATION PROCEDUREвЂќ.
Never perform вЂњDTC CONFIRMATION PROCEDUREвЂќ before the repairs. Doing so may result in a secondary malfunction.
Be careful of the driving speed.

1.PREPARATION BEFORE WORK

If another вЂњDTC CONFIRMATION PROCEDUREвЂќ 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.
Drive the vehicle.
Maintain the following conditions for 10 seconds or more.

Selector lever : вЂњLвЂќ POSITION

Accelerator pedal position : 0.7/8 or more

Vehicle speed : 10 km/h (6 MPH) or more

Stop the vehicle.
Check the first trip DTC.

Is вЂњP2857вЂќ detected? YES >> Go to TM-226, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK INTERMITTENT INCIDENT

Refer to GI-39, "Intermittent Incident".

Is the inspection result normal? YES >> Replace the transaxle assembly. Refer to TM-283, "Removal and Installation".

NO >> Repair or replace malfunctioning parts.

P2765 Input speed sensor B

DTC Logic DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition Possible causes P2765 INPUT SPEED SENSOR B (Input/Turbine ...

P2858 Clutch B Pressure

DTC Logic DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition Possible causes P2858 CLUTCH B PRESSURE (Clutch B Pressure Engagement Perfo ...

Other materials:

Power window and door lock/unlock switch RH
Removal and Installation REMOVAL Release the pawls using a suitable tool and lift the power window and door lock/unlock switch RH and finisher as an assembly and remove. Disconnect the harness connector from the power window and door lock/unlock switch RH. Release the four pawls (tw ...

Cooling fan
Component Function Check 1.CHECK COOLING FAN FUNCTION With CONSULT Turn ignition switch ON. Perform вЂњFANвЂќ in вЂњACTIVE TESTвЂќ mode of вЂњENGINEвЂќ using CONSULT Check that cooling fan operates at low speed or high speed. Without CONSULT Activate IPDM E/R auto ...

P0014 EVT control
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0014 is displayed with DTC P0078, first perform trouble diagnosis for DTC P0078. Refer to EC-183, "DTC Logic". If DTC P0014 is displayed with P1078, first perform trouble diagnosis for P1078. Refer to EC-359, "DTC Logic&quo ...