Nissan Sentra B18 (2020-2025) Service Manual: P0742-00 Torque Converter
Dtc Description
DTC DETECTION LOGIC
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P0742 |
00 |
TORQUE CONVERTER CLUTCH (Torque Converter Clutch Circuit Stuck On) |
Diagnosis condition |
Diagnosis is permitted when all of the following conditions are satisfied: a) Shift position: D position (not manual mode) b) Acceleration pedal opening angle ≥ 10 deg c) 0 rpm < secondary pulley speed < 2000 rpm d) Engine speed ≥ 450 rpm e) Period satisfying the following e-1) is no longer than 0.02 sec. e-1) Speed difference caused by clutch (Input speed - Primary pulley speed ≥ 50 rpm f) The following "f-1" is satisfied for 5 sec or more. f-1) Lock-up instruction pressure ≤ -0.1 MPa g) Power supply voltage ≥ 10 V h) Engine torque ≧ Approximately 30 Nm |
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Signal |
— |
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Threshold |
Absolute value of speed difference caused by T/C ≤ 40 rpm |
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Diagnosis delay time |
5 seconds |
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POSSIBLE CAUSE
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Harness or connector
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Torque converter clutch solenoid
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Control valve
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Torque converter
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TCM
FAIL-SAFE
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Start is slow
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Acceleration is slow
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Engine stops when shift to “D” position during stopping the Nissan Sentra vehicle.
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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.
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Drive the Nissan Sentra vehicle and maintain the following conditions for 10 seconds or more.
Shift position
: "D" position
Accelerator pedal opening
: 10 deg or more
Nissan Sentra Vehicle speed
: 1 - 15 km/h (0.6 - 9 MPH)
Brake pedal
: Depress*
*: Keep depressing the brake pedal moderately not to accelrate the Nissan Sentra vehicle.
CAUTION:
Be careful of the driving speed.
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Stop the Nissan Sentra vehicle.
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Check the DTC.
Is "P0742-00" detected?
YES >>Proceed to DTC 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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Dtc Diagnosis Procedure
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REPLACE TRANSAXLE ASSEMBLY
Replace transaxle assembly. Refer to Removal and Installation.
>>WORK END
P0741-00 Torque Converter
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
( ...
P0746-00 Pressure Control Solenoid a
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
( ...
Other materials:
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen items
(Trouble diagnosis content)
DTC Detection Condition
...
Front stabilizer
Exploded View
Stabilizer bar
Stabilizer clamp
Stabilizer bushing
Stabilizer connecting rod
Front coil spring and strut
Front suspension member
Front
Removal and Installation
REMOVAL
Remove the wheel and tire using power tool. Refer to WT-47, "Exploded
View".
...
Parking Brake Control
Exploded View
Exploded View
1.
Parking brake lever
assembly
2.
Parking brake switch
...
