Nissan Rogue Service Manual: P0743 torque converter
DTC Description
DTC DETECTION LOGIC
| DTC | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition |
| P0743 | TORQUE CONVERTER (Torque Converter Clutch Circuit Electrical) | When all of the following conditions are satisfied and this state is
maintained
for 0.48 seconds:
|
POSSIBLE CAUSE
- Harness or connector (Torque converter clutch solenoid valve circuit is shorted to ground)
- 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 “P0743” detected? YES >> Go to TM-134, "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 ground.
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".
P0740 torque converter
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0740
TORQUE CONVERTER
(Torque Converter Clutch Circui ...
P0744 torque converter
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0744
TORQUE CONVERTER
(Torque converter clutch circui ...
Other materials:
Checking engine oil level
Checking engine oil level
Park the vehicle on a level surface and apply
the parking brake.
Start the engine and let it idle until it reaches
operating temperature.
Turn off the engine. Wait more than
10 minutes for the oil to drain back into
the oil pan.
Remov ...
Periodic maintenance
IN-CABIN MICROFILTER
Removal and Installation
REMOVAL
Release the tab and remove the in-cabin microfilter cover (1)
from under the RH side of the instrument panel.
CAUTION:
Use care when lifting up on the tab to avoid damaging it.
Remove the in-cabin microfilter (2).
CAUT ...
Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the condition
and the environment when the
incident/malfunction occurred).
>> GO TO 2.
2.CONFIRM THE SYMPTOM
Try t ...
