Nissan Sentra B18 (2020-2025) Service Manual: P0740-00 Torque Converter
Dtc Description
DTC Description
DTC DETECTION LOGIC
|
DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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|
P0740 |
00 |
TORQUE CONVERTER (Torque Converter Clutch Circuit/Open) |
Diagnosis condition |
Power supply voltage ≥ 10 V |
|
Signal |
Torque converter clutch solenoid drive signal |
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|
Threshold |
Solenoid drive circuit is diagnosed as open |
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Diagnosis delay time |
0.2 seconds |
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POSSIBLE CAUSE
-
Harness or connector
-
Torque converter clutch solenoid
-
TCM
FAIL-SAFE
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Start is slow
-
Acceleration is slow
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Lock-up is not performed
-
Stop/start system prohibited
DTC CONFIRMATION PROCEDURE
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PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, ignition switch OFF and wait for at least 10 seconds, then perform the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V.
>>GO TO 2.
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CHECK DTC DETECTION
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Start the engine.
-
Drive the Nissan Sentra vehicle and maintain the following conditions for 10 seconds or more.
Shift position
: "D" position
CVT fluid temperature
: 20 °C (68 °F) or more
Nissan Sentra Vehicle speed
: 40 km/h (25 MPH) or more
CAUTION:
Be careful of the driving speed.
-
Stop the Nissan Sentra vehicle.
-
Check the DTC.
Is "P0740-00" detected?
YES >>Proceed to Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: INSPECTION END
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Diagnosis Procedure
Diagnosis Procedure
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CHECK TORQUE CONVERTER CLUTCH SOLENOID CIRCUIT
Check torque converter clutch solenoid circuit. Refer to Diagnosis Procedure.
Is the inspection result normal?
YES>>Replace TCM. Refer to Removal and Installation.
NO >>Repair or replace damaged parts.
Other materials:
Parking Brake System. Foot Pedal
Precaution. Precautions
Precautions
Precaution for Supplemental Restraint System (srs) "air Bag" and "seat Belt Pre-Tensioner"
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as
“AIR BAG” and “SEAT BEL ...
Ventilation System. Periodic Maintenance. In-Cabin Microfilter
In-Cabin Microfilter
Exploded View
Exploded View
1.
Heating and cooling unit
assembly
2.
In-cabin microfilter
...
U1040 Eng Comm Circuit
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC detection
condition
...