Nissan Sentra B18 (2020-2025) Service Manual: Cvt Control System

Engine system

1

7

2

1

2

8

8

2

2

2

3

3

2

2

8

8

8

2

2

2

2

2

2

2

2

CAN communication line

Work Flow

4

3

3

4

3

3

3

6

6

6

4

4

6

4

6

3

3

3

6

6

4

4

4

Transmission range switch (P0705–00,P0706–00)

DTC Index

8

8

8

8

5

5

8

3

2

2

2

1

1

1

2

3

3

Input speed sensor (P0715–00, P0717–00, P0718–00)

4

5

5

5

3

3

3

7

7

3

7

5

5

5

3

3

3

5

Primary speed sensor (P0791–00, P0793–00, P0794–00)

5

6

6

6

4

4

4

8

8

4

8

6

6

6

4

4

4

6

6

Secondary speed sensor (P2765–00, P2767–00, P2768–00)

6

7

7

7

10

10

9

9

10

9

7

7

7

5

3

7

6

Line pressure sensor (P0746-00, P0747-00, P0846-00, P084B-00, P0870-00, P0871-00, P0872-00, P0873-00)

5

CVT fluid temperature sensor (P0711–00, P0712–00, P0713–00)

3

3

9

9

9

9

12

12

9

10

9

9

9

Primary pressure sensor (P084C–00, P084D–00)

8

10

10

11

11

10

10

11

11

10

10

10

8

Secondary pressure sensor (P0841–00, P0847–00, P0848–00)

9

11

11

12

12

11

11

12

12

11

11

11

9

Torque converter clutch solenoid valve (P0740–00, P0741–00, P0742–00, P0743–00, P0744–00)

6

11

6

6

5

5

5

5

7

5

5

Electric oil pump (P188E-00, P27A1-00, P27A3-00, P27A4-00, P27A5-00, P27A6-00, P28ED-00, P28EE-00, U0287-00)

4

6

4

4

Manual mode position

1

Stall test

Work Procedure

4

4

4

7

7

7

2

2

7

5

3

3

3

7

CVT position

Inspection

2

2

2

1

2

2

6

6

6

4

4

4

2

3

3

2

3

2

2

Power supply

Diagnosis Procedure

12

12

13

13

13

12

12

12

5

Control valve

Removal and Installation

9

8

10

9

5

13

13

13

13

8

14

14

13

14

13

13

13

8

4

4

4

4

4

10

7

5

8

CVT fluid level and state

Inspection

5

1

1

5

4

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

2

1

1

1

1

Ignition switch and starter

Wiring Diagram ,Work Flow (With 165-DSS-5000P) ,Work Flow (Without 165-DSS-5000P) ,Work Flow (Without 165-DSS-5000P)

1

1

1

Symptom

Diagnostic item

Reference

Shift Shock

Slips/Will Not Engage

Other

Large shock (N→ D position)

Large shock (N→ R position)

Shock is too large for lock-up.

Nissan Sentra Vehicle cannot be started from D position.

Nissan Sentra Vehicle cannot be started from R position.

Does not lock-up.

Does not hold lock-up condition.

Lock-up is not released.

When shifted to D position, acceleration is extremely poor.

When shifted to R position, acceleration is extremely poor.

Slips at lock-up.

No creep at all.

Nissan Sentra Vehicle cannot run in all positions.

When shifted to D position, driving is not possible.

When shifted to R position, driving is not possible.

Judder occurs during lockup.

Strange noise in D position.

Strange noise in R position.

Strange noise in N position.

Maximum speed low.

When shifted to P position, Nissan Sentra vehicle does not enter parking condition or, with shifted to another position, parking condition is not cancelled.

Nissan Sentra Vehicle runs with CVT in P position.

Vehicle runs with CVT in N position.

Engine stall.

Engine stalls when shifted to N → D or R.

Does not shift.

Torque converter

Exploded View

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Transmission range switch

Exploded View

2

2

3

4

3

3

3

4

6

5

Oil pump

1

1

2

2

2

2

2

2

2

2

2

2

2

2

2

1

Forward clutch

1

2

2

4

4

4

4

4

2

Reverse brake

1

2

3

5

5

4

4

3

Planetary gear

3

3

3

3

3

3

3

3

2

1

Bearings

5

Parking mechanism

3

6

5

5

1

1