DTC DETECTION LOGIC
DTC | Trouble diagnosis name | DTC detection condition | Possible causes |
P0744 | Torque converter clutch circuit intermittent | The torque converter slip speed is at or above
a set value (40 rpm + (Vehicle speed / 2) continuously
for 30 seconds or more under the following
diagnosis conditions: - Diagnosis conditions - Selector lever: "D" position - Accelerator pedal position: 1.0/8 or more - Vehicle speed: 10 km/h (6 MPH) or more - Engine speed: 450 rpm or more - CVT fluid temperature: 20C (68F) ≤ CVT fluid temperature ≤ 180C (356F) - Lockup command is being given (except for slip lockup). - LU PRS: More than 0.2 MPa - TCM power supply voltage: More than 11 V |
- Torque converter clutch solenoid valve - Control valve assembly - Torque converter |
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
FLUID TEMP : 20C (68F) or more
With GST
NOTE: When the ambient temperature is 20C (68F), the CVT fluid usually increases to 50 to 80C (122 to 176F) with driving in an urban area for approximately 10 minutes.
Is the CVT fluid 20C (68F) or more?
YES >> GO TO 3.
NO >> 1. Warm the transaxle. 2. GO TO 3.
3.CHECK DTC DETECTION
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 "Diagnosis Procedure".
NO >> INSPECTION END
1.CHECK LINE PRESSURE
Perform line pressure test. Refer to TM "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
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunction items.
3.CHECK INTERMITTENT INCIDENT
Refer to GI "Intermittent Incident".
Is the inspection result normal?
YES >> Replace the transaxle assembly. Refer to TM, "Removal and Installation".
NO >> Repair or replace the malfunction items.
Component Inspection (Torque Converter Clutch Solenoid Valve)
1.CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE
Check resistance between CVT unit connector terminal and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> There is a malfunction of torque converter clutch solenoid valve. Replace transaxle assembly.
Refer to TM "Removal and Installation".
Doors
When the doors are locked using one of the
following methods, the doors cannot be opened
using the inside or outside door handles. The
doors must be unlocked to open the doors.
WARNING
Before opening any door, always look
for and avoid oncoming traffic.
To help avoid risk of injury or de ...
Windshield-washer fluid
Windshield-washer fluid reservoir
Add a washer solvent to the windshield-washer
fluid reservoir for better cleaning. In the winter
season, add a windshield-washer antifreeze. Follow
the manufacturer's instructions for the mixture
ratio.
Refill the reservoir more frequently when driving
...