Nissan Sentra B18 (2020-2025) Service Manual: Symptom Diagnosis. Cvt Control System
Cvt Control System
Symptom Table
Symptom Table
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The diagnosis item number indicates the order of check. Start checking in the order from 1.
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Perform diagnoses of symptom table 1 before symptom table 2.
Symptom Table 1
|
Diagnostic item |
Reference |
Symptom |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Shift Shock |
Slips/Will Not Engage |
Other |
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|
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. |
Nissan Sentra Vehicle does not decelerate by engine brake. |
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. |
Engine speed does not return to idle. |
Does not shift. |
Cannot be changed to manual mode. |
Engine does not start in N or P position. |
Engine starts in positions other than N or P. |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
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 |
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|
Manual mode position |
1 |
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|
Stall test |
Work Procedure |
4 |
4 |
4 |
7 |
7 |
7 |
2 |
2 |
7 |
5 |
3 |
3 |
3 |
7 |
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|
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 |
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|
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 |
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Symptom Table 2
|
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. |
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|
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 |
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|
Reverse brake |
1 |
2 |
3 |
5 |
5 |
4 |
4 |
3 |
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|
Planetary gear |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
2 |
1 |
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|
Bearings |
5 |
||||||||||||||||||||||||||
|
Parking mechanism |
3 |
6 |
5 |
5 |
1 |
1 |
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Other materials:
Clutch. Removal and Installation
Clutch Pedal
Exploded View
Exploded View
1.
Clutch pedal
2.
Clutch master cylinder
...
B1019 Occupant Sens
Dtc Description
DTC Description
DESCRIPTION
B1019 OCCUPANT SENS
The OCS control unit is wired to the air bag
diagnosis sensor unit. The air bag diagnosis sensor unit will
monitor the OCS for failures and interruptions in communication
between the OCS control unit and the air bag ...
iPod* player operation
Type-A.
Connecting iPod
WARNING
Do not connect, disconnect, or operate the USB device while driving. Doing
so may distract the driver. If distracted, you could lose control of your Nissan
Sentra, which could result in an accident causing serious injury.
CAUTION
Do not force the ...