DTC P0741 (Flash Code 43) Torque Converter Clutch Circuit Performance or Stuck Off (AWR6B45)

1. Transmission control system check

Refer to "55.Transmission Control 5A.Troubleshooting(AWR6B45) diagnostic system check-transmission controls".

2. ATF inspection

1) Inspect the ATF level and contamination.

2) Adjust or replace as necessary.

Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) ATF inspection".

Procedure completion

=>Go to Current DTC check.

3. Current DTC check

1) Connect the scan tool.

2) Turn OFF the ignition switch for 30 seconds or more.

3) Start the engine and operate the vehicle in the D range and 3rd gear or higher.

4) Observe the DTC information with a scan tool. Is a DTC set?

Yes

=>Go to Line pressure test.

No

Go to Intermittent conditions of automatic transmission.

Refer to "206.Transmission, Transaxle 19D.Symptom(AWR6B45) Intermittent conditions of automatic transmission".

4. Line pressure test

1) Perform the line pressure test. Is the line pressure within the specified range?

Refer to "206.Transmission, Transaxle 19C.Functional Inspection(AWR6B45) measurement of the automatic transmission operating pressure".

Yes

=>Go to Solenoid inspection.

No

Repair as necessary.

=>Go to Repair verification.

5. Solenoid inspection

1) Inspect the following solenoids in the valve body assembly. Are all of the results normal?

Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) transmission inspection".

Yes

Inspect the valve body and torque converter, and repair or replace as necessary.

=>Go to Repair verification.

No

Replace the valve body assembly.

Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) transmission removal".

Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) transmission disassembly".

Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) transmission reassembly".

Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) transmission installation".

=>Go to Repair verification.

6. Repair verification

1) Clear the DTC with a scan tool.

2) Turn OFF the ignition switch for 30 seconds or more.

3) Start the engine and operate the vehicle in the D range and 3rd gear or higher.

4) Observe the DTC information with a scan tool.