Nissan Rogue Service Manual: P0740 torque converter
DTC Description
DTC DETECTION LOGIC
| DTC | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition |
| P0740 | TORQUE CONVERTER (Torque Converter Clutch Circuit/Open) | When all of the following conditions are satisfied and this state is
maintained
for 5 seconds:
|
POSSIBLE CAUSE
- Harness or connector (Torque converter clutch solenoid valve circuit is open or shorted to power supply)
- Torque converter clutch solenoid valve
FAIL-SAFE
- Start is slow
- Acceleration is slow
- Lock-up is not performed
DTC CONFIRMATION PROCEDURE
CAUTION: Be careful of the driving speed.
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.
>> GO TO 2.
2.PREPARATION BEFORE OPERATION
With CONSULT
- Start the engine.
- Select “Data Monitor” in “TRANSMISSION”.
- Select “FLUID TEMP”.
- Confirm that the CVT fluid temperature is in the following range.
FLUID TEMP : 20°C (68°F) or more
With GST
- Start the engine.
- Set the CVT fluid to 20°C (68°F) or more.
NOTE: When the ambient temperature is 20°C (68°F), the CVT fluid usually increases to 50 to 80°C (122 to 176°F) with driving in an urban area for approximately 10 minutes.
Is the CVT fluid 20°C (68°F) or more? YES >> GO TO 3.
NO >> 1. Warm the transaxle.
2. GO TO 3.
3.CHECK DTC DETECTION
- Drive the vehicle.
- Maintain the following conditions for 10 seconds or more.
Selector lever : “D” position
Vehicle speed : 40 km/h (25 MPH) or more
- Stop the vehicle.
- Check the first trip DTC.
Is “P0740” detected? YES >> Go to TM-132, "Diagnosis Procedure".
NO-1 >> To check malfunction symptom before repair: Refer to GI-41, "Intermittent Incident".
NO-2 >> Confirmation after repair: INSPECTION END
Diagnosis Procedure
1.CHECK CIRCUIT BETWEEN TCM AND CVT UNIT
- Turn ignition switch OFF.
- Disconnect TCM connector and CVT unit connector.
- Check continuity between TCM harness connector terminal and CVT unit harness connector terminal.
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace malfunctioning parts.
2.CHECK CIRCUIT BETWEEN CVT UNIT AND GROUND
Check resistance between CVT unit harness connector terminal and ground.
Is the inspection result normal? YES >> INSPECTION END
NO >> There is malfunction of torque converter clutch solenoid valve. Replace transaxle assembly. Refer to TM-220, "Removal and Installation".
P0717 input speed sensor A
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0717
INPUT SPEED SENSOR A
(Input/Turbine Speed Sensor ...
P0743 torque converter
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0743
TORQUE CONVERTER
(Torque Converter Clutch Circui ...
Other materials:
Encoder circuit
Description
Detects condition of the front power window motor LH operation and transmits
to main power window and door
lock/unlock switch as pulse signal.
Component Function Check
1.CHECK ENCODER OPERATION
Check front driver side door glass perform AUTO open/close operation normally
when ma ...
Symptom diagnosis
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Symptom Table
CAUTION:
Perform the self-diagnosis with CONSULT before the symptom diagnosis. Perform
the trouble diagnosis
if any DTC is detected.
NORMAL OPERATING CONDITION
Description
AUTO LIGHT SYSTEM
The headlamp may not be turned ON/OFF immedi ...
Structure and operation
Positive Crankcase Ventilation
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase
blow-by gas to the intake
manifold.
During partial throttle operation of the engine, the intake manifold sucks the
bl ...
