Spark

DTC P0741

This problem occurs when the lock-up clutch will not engage while all the electronic signals concerned with lock up control (the input speed sensor, engine speed, and the TCC solenoid) are normal.

Therefore, it is necessary to check the lock-up clutch in the torque converter and check inside the control valve.

Absolute value for engine speed minus input speed is greater than 40 rpm plus vehicle speed divided by 2.

DTC P0741 is a Type B DTC.

Schematic Reference

Automatic Transmission Controls Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Electrical Information Reference

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

1. Ignition OFF, disconnect the Q8 Control Solenoid Valve Assembly wiring harness plug and K71 TCM wiring harness plug.
2. Test for 13 Ω at 20°C (68°F) between the Q39B TCC Solenoid Valve circuit terminal 4 and ground.

⇒	If not the specified value, test for the circuit for open circuit or short circuit to ground.

⇒	If the circuit is normal, replace the Q39B TCC Solenoid Valve.

3. Test for continuity between the Q39B TCC Solenoid Valve harness circuit terminal 4 and K71 TCM wiring harness plug terminal 3.

⇒	If the continuity is not normal, repair or replace the circuit.

4. If the circuits test normal, replace the K71 TCM.
5. Inspect for the control valve body.

⇒	If there is any malfunction, replace the control valve body.

6. If all circuits and components test normal, replace the torque converter.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.