Nissan Juke Service and Repair Manual : P0744 torque converter
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Be careful of the driving speed.
1.PREPARATION BEFORE OPERATION 1
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 2
With CONSULT-III
1. Start the engine.
2. Select “Data Monitor” in “TRANSMISSION”.
3. Select “FLUID TEMP”.
4. Confirm that the CVT fluid temperature is in the range below.
FLUID TEMP : 20°C (68°F) or more
With GST.
1. Start the engine.
2. 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
1. Drive the vehicle.
2. Maintain the following conditions for 40 seconds or more.
Selector lever : “D” position
Accelerator pedal position : 1.0/8 or more Vehicle speed : 40 km/h (25 MPH) or more
3. Stop the vehicle.
4. Check the first trip DTC.
Is “P0744” detected? YES >> Go to TM-421, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK LINE PRESSURE
Perform the line pressure test. Refer to TM-382, "Work Procedure".
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace the malfunction items.
2.CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE
1. Turn ignition switch OFF.
2. Disconnect the CVT unit connector.
3. Check the torque converter clutch solenoid valve. Refer to TM-421, "Component Inspection (Torque Converter Clutch Solenoid Valve)".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Repair or replace the malfunction items.
Component Inspection (Torque Converter Clutch Solenoid Valve)
1.CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE
Check the resistance between the CVT unit connector terminal and ground.
Is the inspection result normal? YES >> INSPECTION END
NO >> There is a malfunction of the torque converter clutch solenoid valve. Replace the transaxle assembly. Refer to TM-508, "Removal and Installation".
P0743 torque converter
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Be careful of the driving speed.
1.PREPARATION BEFORE OPERATION (PART 1)
If another "DTC CONFIRMATION PROCEDURE" occ ...
P0746 pressure control solenoid A
DTC Logic
DTC DETECTION LOGIC
NOTE:
DC stands for "DRIVING CYCLE" and indicates a series of driving cycle of
"Ignition switch OFF → ON → driving
→ OFF".
...
Other materials:
Symptom diagnosis
COMBINATION SWITCH SYSTEM SYMPTOMS
Symptom Table
1. Perform “Data Monitor” of CONSULT-III to check for any malfunctioning
item.
2. Check the malfunction combinations.
3. Identify the malfunctioning part from the agreed combination and repair or
replace the part.
...
IGN off interlock door unlock function does not operate
Diagnosis Procedure
1.CHECK “AUTOMATIC LOCK/UNLOCK SELECT” SETTING IN “WORK SUPPORT”
1. Select “DOOR LOCK” of “BCM” using CONSULT-III.
2. Select “AUTOMATIC LOCK/UNLOCK SELECT” in “WORK SUPPORT” mode.
3. Check “AUTOMATIC LOCK/UNLOCK SELECT” in “WORK SUPPORT”.
Refer to DLK-217, "DOOR LOCK ...
B2557 vehicle speed
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B2557 is displayed with DTC U1000, first perform the trouble diagnosis
for DTC U1000. Refer to
BCS-83, "DTC Logic".
• If DTC B2557 is displayed with DTC U1010, first perform the trouble diagnosis
for DTC U1010. Refer to
BCS-84, "D ...
