Automatic Transmission
DTC P0741: Torque Converter Clutch Hydraulic Circuit Stuck OFFNOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review General Troubleshooting Information.
1. Warm up the engine to normal operating temperature (the radiator fan comes on).
2. Make sure that the transmission is filled to the proper level, and check for fluid leaks.
3. Drain the ATF through a strainer. Inspect the strainer for metal debris or excessive clutch material.
Does the strainer have metal debris or excessive clutch material?
YES - Replace the transmission.
NO - Replace the ATF, then go to step 4.
4. Turn the ignition switch ON (II).
5. Clear the DTC with the HDS.
6. Select Lockup Solenoid Test in Miscellaneous Test Menu, and check that the torque converter clutch solenoid valve operates with the HDS.
Do you hear a clicking?
YES - Go to step 7.
NO - Replace the torque converter clutch solenoid valve, then go to step 13.
7. Select Clutch Pressure Control (Linear) Solenoid C in the Miscellaneous Test Menu, and test A/T clutch pressure control solenoid valve C with the HDS.
Does the screen indicate NORMAL?
YES - Go to step 8.
NO - Follow the instructions indicated on the HDS for the test result, but if the HDS has not determined the cause of the failure, go to step 12. If any part was replaced, go to step 13.
8. Run the engine until the ECT SENSOR value reaches 176°F (80°C).
9. Test-drive the vehicle at a constant speed of 60 mph (96 km/h) for at least 22 seconds.
10. Turn the ignition switch OFF, and repeat the test-drive in step 9.
11. Monitor the OBD STATUS for P0741 in the DTCs MENU with the HDS.
Does the screen indicate FAILED?
YES - Repair the faulty torque converter clutch mechanism, the torque converter clutch hydraulic circuit, the lock-up shift valve, or the lock-up control valve, or replace the transmission.
NO - If the screen indicates PASSED, intermittent failure, the system is OK at this time. If the screen indicates NOT COMPLETED, go to step 9.
12. Inspect A/T clutch pressure control solenoid valve C.
Does A/T clutch pressure control solenoid valve C work properly?
YES - Repair the hydraulic system related to the lock-up shift valve, the lock-up control valve, and the lock-up timing valve, or replace the transmission, then go to step 13.
NO - Replace A/T clutch pressure control solenoid valve C, then go to step 13.
13. Turn the ignition switch ON (II).
14. Clear the DTC with the HDS.
15. Test-drive the vehicle at a constant speed of 60 mph (96 km/h) for at least 22 seconds.
16. Turn the ignition switch OFF, and repeat the test-drive in step 15.
17. Check for DTCs with the HDS.
Is DTC P0741 indicated?
YES - Go to step 6.
NO - Go to step 1 B.
18. Monitor the OBD STATUS for P0741 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Troubleshooting is complete. If any other DTCs were indicated in step 17, go to the indicated DTC's troubleshooting.
NO - If the screen indicates FAILED, go to step 6. If the screen indicates NOT COMPLETED, go to step 15.