Nissan Sentra B18 (2020-2025) Service Manual: Select Solenoid Valve Circuit
Diagnosis Procedure
Diagnosis Procedure
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CHECK HARNESS CONNECTOR
-
Ignition switch OFF.
-
Check the mating condition of TCM harness connector and CVT unit harness connector.
Is the inspection result normal?
YES >>GO TO 2.
NO >>Repair or replace damaged parts.
-
-
CHECK CONNECTOR TERMINAL
-
Disconnect TCM harness connector and CVT unit harness connector.
-
Check the connectors of TCM and CVT unit for water intrusion, or damage or corrosion of the terminals.
Is the inspection result normal?
YES >>GO TO 3.
NO >>Repair or replace damaged parts.
-
-
CHECK DETECTED DTC
Are other solenoid valve malfunctions detected in addition to select solenoid valve?
YES >>GO TO 4.
NO >>GO TO 7.
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CHECK SOLENOID GROUND CIRCUIT - 1
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Connect TCM harness connector.
-
Check continuity (resistance) between CVT unit harness connector terminal and ground.
CVT unit
—
Continuity (Resistance)
Connector
Terminal
F46
20
Ground
Existed (1 Ω or less)
Is the inspection result normal?
YES >>GO TO 6.
NO >>GO TO 5.
-
-
CHECK SENSOR GROUND CIRCUIT - 2
-
Disconnect TCM harness connector.
-
Check continuity (resistance) between TCM harness connector terminal and CVT unit harness connector terminal.
TCM
CVT unit
Continuity (Resistance)
Connector
Terminal
Connector
Terminal
F23
44
F46
20
Existed (1 Ω or less)
Is the inspection result normal?
YES >>GO TO 6.
NO >>Repair harness or connector.
-
-
CHECK TCM POWER SUPPLY AND GROUND CIRCUITS
Check TCM power supply and ground circuits. Refer to Diagnosis Procedure.
Is the inspection result normal?
YES >>INSPECTION END
NO >>Repair or replace damaged parts.
-
CHECK SELECT SOLENOID VALVE CIRCUIT - 1
Check continuity between TCM harness connector terminal and CVT unit harness connector terminal.
TCM
CVT unit
Continuity (Resistance)
Connector
Terminal
Connector
Terminal
F23
37
F46
4
Existed (1 Ω or less)
Is the inspection result normal?
YES >>GO TO 8.
NO >>Repair harness or connector.
-
CHECK SELECT SOLENOID VALVE CIRCUIT - 2
Check continuity between TCM harness connector terminal and ground.
TCM
−
Continuity
Connector
Terminal
F23
37
Ground
Not existed
Is the inspection result normal?
YES >>GO TO 9.
NO >>Repair harness.
-
CHECK SELECT SOLENOID VALVE
Check resistance between CVT unit connector terminals.
CVT unit
Test condition
Resistance
Terminal
4
20
CVT fluid temperature
20°C (68°F)
5.2 – 6.7 Ω
50°C (122°F)
5.6 – 7.2 Ω
80°C (176°F)
6.0 – 8.0 Ω
Is the inspection result normal?
YES >>INSPECTION END
NO >>Replace control valve due to select solenoid valve malfunction. Refer to Removal and Installation.
Other materials:
Steering wheel
WARNING
Do not adjust the steering wheel while driving. Doing so may cause you
to lose control of your Nissan Sentra and could result in an accident.
Do not position the steering wheel closer to you than necessary for proper
steering control and driving comfort.
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Diagnosis Procedure
Diagnosis Procedure
CHECK SYSTEM SETTING
Turn ignition switch ON.
Check that the each system settings is
selectable on the combination meter.
Is the inspection result norma ...
Fuel Tank Temperature Sensor
Component Inspection
Component Inspection
CHECK FUEL TANK TEMPERATURE (FTT)
SENSOR
Turn ignition switch OFF.
Disconnect fuel level sensor unit and
fuel pump harness connector.
Remov ...