Nissan Sentra. Manual — part 898

TM-228

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

P2858 CLUTCH B PRESSURE

P2858 CLUTCH B PRESSURE

DTC Logic

INFOID:0000000009759476

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

• Be sure to perform “

TM-228, "Diagnosis Procedure"

” and then perform “DTC CONFIRMATION PRO-

CEDURE”.

• Never perform “DTC CONFIRMATION PROCEDURE” before the repairs. Doing so may result in a sec-

ondary malfunction.

• 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. Drive the vehicle.

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

4. Stop the vehicle.

5. Check the first trip DTC.
Is “P2858” detected?

YES

>> Go to

TM-228, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009759477

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"

.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

Possible causes

P2858

CLUTCH B PRESSURE
(Clutch B Pressure Engage-
ment Performance)

The auxiliary gearbox gear ratio is 2.232 or
more for the auxiliary gearbox 2GR ratio con-
tinuously for 5 seconds or more under the fol-
lowing diagnosis conditions:
• Diagnosis conditions
- Selector lever: Other than “P”, “R” and “N”

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 2GR of auxiliary gearbox

is in progress.

- Auxiliary gearbox shifting is not in progress.
- TCM power supply voltage: More than 11 V

• High clutch & reverse brake solenoid

valve

• Control valve assembly

Selector lever

: “D” POSITION

Accelerator pedal position

: 0.7/8 or more

Vehicle speed

: 45 km/h (28 MPH) or more

P2858 CLUTCH B PRESSURE

TM-229

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

NO

>> Repair or replace malfunctioning parts.

TM-230

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

P2859 CLUTCH A PRESSURE

P2859 CLUTCH A PRESSURE

DTC Logic

INFOID:0000000009759478

DTC DETECTION LOGIC

DTC COFIRMATION PROCEDURE

CAUTION:

• Be sure to perform “

TM-231, "Diagnosis Procedure"

” and then perform “DTC CONFIRMATION PRO-

CEDURE”.

• Never perform “TC CONFIRMATION PROCEDURE” before the repairs. Doing so may result in a sec-

ondary malfunction.

• 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.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

Possible causes

P2859

CLUTCH A PRESSURE
(Clutch A Pressure Disengage-
ment Performance)

The detection conditions continuously for 200
msec or more under the following diagnosis
conditions:
• Diagnosis conditions
- Selector lever: Other than “P”, “R” and “N”

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

− Auxilia-

ry gearbox 2GR ratio

≥ 50%

• Low brake solenoid valve
• Control valve assembly

The auxiliary gearbox gear ratio is

±10% or

less for the auxiliary gearbox 1GR ratio contin-
uously for 500 msec or more under the follow-
ing diagnosis conditions:
• Diagnosis conditions
- Selector lever: Other than “P”, “R” and “N”

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

P2859 CLUTCH A PRESSURE

TM-231

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

2. Drive the vehicle.

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

4. Stop the vehicle

5. Check the first trip DTC.
Is “P2859” detected?

YES

>> Go to

TM-231, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009759479

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.

Selector lever

: “D” position

Accelerator pedal position

: 0.7/8 or more

Vehicle speed

: 45 km/h (28 MPH) or more