Nissan Sentra Service Manual: P2859 Clutch A Pressure

Nissan Sentra Service Manual / Transmission & driveline / Transaxle & transmission / CVT: RE0F11A / P2859 Clutch A Pressure

DTC Logic

DTC DETECTION LOGIC

DTC

CONSULT screen terms (Trouble diagnosis content)

DTC detection condition

Possible causes

P2859

CLUTCH A PRESSURE (Clutch A Pressure Disengagement Performance)

The detection conditions continuously for 200 msec or more under the following diagnosis conditions:

Diagnosis conditions

Selector lever: Other than вЂњPвЂќ, вЂњRвЂќ and вЂњNвЂќ positions
Vehicle speed: 10 km/h (6 MPH) or more
Engine speed: More than 550 rpm
Output speed: More than 300 rpm
Secondary pulley speed: More than 300 rpm
A lapse of 500 msec or more after the stop lamp switch is turned from ON to OFF.
Command for the 2GR of auxiliary gearbox is in progress.
Auxiliary gearbox shifting is not in progress.
TCM power supply voltage: More than 11 V

Detection conditions

Acceleration/deceleration: Less than −0.05 G
Actual auxiliary gearbox gear ratio − Auxiliary gearbox 2GR ratio ≥ 50%

Low brake solenoid valve
Control valve assembly

The auxiliary gearbox gear ratio is В±10% or less for the auxiliary gearbox 1GR ratio continuously for 500 msec 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
Secondary pulley speed: More than 300 rpm
Output speed: More than 300 rpm
Command for the 2GR of auxiliary gearbox is in progress
Auxiliary gearbox shifting is not in progress.
TCM power supply voltage: More than 11 V

DTC COFIRMATION PROCEDURE

CAUTION:

Be sure to perform вЂњTM-231, "Diagnosis Procedure"вЂќ and then perform вЂњDTC CONFIRMATION PROCEDUREвЂќ.
Never perform вЂњTC 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 : вЂњDвЂќ position

Accelerator pedal position : 0.7/8 or more

Vehicle speed : 45 km/h (28 MPH) or more

Stop the vehicle
Check the first trip DTC.

Is вЂњP2859вЂќ detected? YES >> Go to TM-231, "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.

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