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DTC P0741 [FS5A-EL]

id050221807900

DTC P0741 | Torque converter clutch (TCC) stuck off
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DETECTION CONDITION | • When all conditions below are satisfied. - ATF temperature 20 °C {68 °F} or more - Driving in 4GR at D range - Engine running - Turbine speed within 225-4,987 rpm - Vehicle speed within 60-100 km/h {37-62 mph} - Torque converter clutch (TCC) operating - Shift solenoid A duty value exceeds 99% - Difference between engine speed and turbine speed more than 100 rpm - None of the following DTCs are present: P0706, P0707, P0708, P0712, P0713, P0715, P0720, P0751, P0752, P0753, P0756, P0757, P0758, P0761, P0762, P0763, P0766, P0767, P0768, P0771, P0772, P0773, P0791 Diagnostic support note: • This is a continuous monitor (CCM). • The MIL does not illuminate if TCM detects the above malfunction conditions during first the drive cycle. • A PENDING CODE is not available. • FREEZE FRAME DATA is not available. • The AT warning light illuminates • The DTC is stored in the TCM memory.
POSSIBLE CAUSE | • ATF level low • Deteriorated ATF • Shift solenoids A, B, C, D, E, and pressure control solenoid A stuck • Line pressure low 2-4 brake band slipping 3-4 clutch slipping • Control valve stuck • TCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related Service Bulletins and/or on-line repair information availability. • Is any related repair information available? | Yes | Perform repair or diagnosis according to the available repair information. • If the vehicle is not repaired, go to the next step.
No | Go to the next step.
2 | INSPECT ATF CONDITION • Turn the ignition switch to the LOCK position. • Inspect the ATF condition. - Clear red: Normal - Milky: Water mixed in fluid - Reddish brown: Deteriorated ATF • Is it normal? (See Automatic Transaxle Fluid (ATF) Condition Inspection.) | Yes | Go to the next step.
No | If the ATF color is milky or reddish brown, replace ATF, then go to Step 4. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT [FS5A-EL].)
3 | INSPECT ATF LEVEL • Start the engine. • Warm up the ATX. • Is the ATF level within the specification? (See Automatic Transaxle Fluid (ATF) Level Inspection.) | Yes | Go to the next step.
No | Add ATF to the specified level, then go to Step 6. (See Automatic Transaxle Fluid (ATF) Level Inspection.)
4 | INSPECT LINE PRESSURE • Start the engine. • Measure the line pressures. (See Line Pressure Test.) • Are the line pressures within the specifications? | Yes | Go to the next step.
No | • All ranges: Replace the oil pump or control valve body, then go to Step 6. • Any ranges: Replace the automatic transaxle, then go to Step 6. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [FS5A-EL].) (See ATX Workshop Manual FS5A-EL.)
5 | INSPECT OPERATION OF EACH VALVE AND EACH SPRING • Turn the ignition switch to the LOCK position. • Remove the primary control valve body. • Disassemble the primary control valve body. • Is each valve operation normal and is the return spring normal? (See PRIMARY CONTROL VALVE BODY REMOVAL [FS5A-EL].) (See PRIMARY CONTROL VALVE BODY INSTALLATION [FS5A-EL].) (See ATX Workshop Manual FS5A-EL.) | Yes | Replace the automatic transaxle, then go to the next step (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [FS5A-EL].) (See ATX Workshop Manual FS5A-EL.)
No | Repair or replace the shift valve and return spring, then go to the next step. (See PRIMARY CONTROL VALVE BODY REMOVAL [FS5A-EL].) (See PRIMARY CONTROL VALVE BODY INSTALLATION [FS5A-EL].) (See ATX Workshop Manual FS5A-EL.)
6 | VERIFY TROUBLESHOOTING OF DTC P0741 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from the memory using the WDS or equivalent. • Start the engine. • Warm up engine and ATX. • Drive the vehicle under the following conditions for 5 s or more. - ATF temperature (TFT PID): 20 °C {68 °F} or more - Drive in the D range, 4GR (TCC operation) - Vehicle speed (VSS PID): within 60-100 km/h {37-62 mph} • Are any DTCs present? | Yes | Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION [FS5A-EL].)
No | Go to the next step.
7 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FS5A-EL].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection.
No | DTC troubleshooting completed.