DTC P0741: Torque Converter Clutch System Malfunction (A/T)

Perform basic diagnostic procedure. See BASIC DIAGNOSTIC PROCEDURE . If DTC P0741 is only DTC present, go to next step. If any other DTCs are present, diagnose and repair those codes first. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .
Check lock-up duty solenoid circuit. See DTC 77 in appropriate DIAGNOSTICS article in AUTOMATIC TRANSMISSIONS in TRANSAXLE/TRANSMISSION. If lock-up duty solenoid circuit is okay, go to next step. If lock-up duty solenoid circuit is not okay, repair or replace lock-up duty solenoid. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .
Check throttle position (TP) sensor circuit. See DTC 31 in appropriate DIAGNOSTICS article in AUTOMATIC TRANSMISSIONS in TRANSAXLE/TRANSMISSION. If TP sensor circuit is okay, go to next step. If TP sensor circuit is not okay, repair or replace TP sensor. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .
Check torque converter turbine speed sensor circuit. See DTC 36 in appropriate DIAGNOSTICS article in AUTOMATIC TRANSMISSIONS in TRANSAXLE/TRANSMISSION. If torque converter turbine speed sensor circuit is okay, go to next step. If torque converter turbine speed sensor circuit is not okay, repair or replace torque converter turbine speed sensor. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .
Check engine speed input circuit. See DTC 11 in appropriate DIAGNOSTICS article in AUTOMATIC TRANSMISSIONS in TRANSAXLE/TRANSMISSION. If engine speed input circuit is okay, go to next step. If engine speed input circuit is not okay, repair or replace engine speed input circuit. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .
Check inhibitor switch circuit. If inhibitor switch circuit is okay, go to next step. If inhibitor switch circuit is not okay, repair or replace inhibitor switch circuit. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .
Check brake light switch circuit. If brake light switch circuit is okay, go to next step. If brake light switch circuit is not okay, repair or replace brake light switch circuit. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .
Check ATF temperature sensor circuit. See DTC 27 in appropriate DIAGNOSTICS article in AUTOMATIC TRANSMISSIONS in TRANSAXLE/TRANSMISSION. If ATF temperature sensor circuit is okay, go to next step. If ATF temperature sensor circuit is not okay, repair or replace ATF temperature sensor circuit. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .
Check for poor terminal contact in transmission control module (TCM) electrical harness connectors. TCM is located under left side of instrument panel. Repair connectors as required. If connectors are okay, go to next step. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .
If mechanical trouble is present in automatic transmission, repair or replace automatic transmission. If no mechanical trouble is present in automatic transmission, replace transmission control module. Clear memory and perform verification procedure. See CLEARING DIAGNOSTIC TROUBLE CODES and VERIFICATION PROCEDURE .