Lock-Up Is Not Released

Lock-up Is Not Released

SYMPTOM: The lock-up condition cannot be cancelled even after releasing the accelerator pedal.

DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Execute self-diagnosis.

Do the self-diagnostic results indicate torque converter clutch solenoid valve, engine speed signal, turbine revolution sensor, CAN communication?
YES >> Check the malfunctioning system. Refer to "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE", "DTC P0725 ENGINE SPEED SIGNAL", "DTC P1716 TURBINE REVOLUTION SENSOR", "DTC U1000 CAN COMMUNICATION LINE". P0740 P0725 P1716 Transmission Control Systems
NO >> GO TO 2.

2. CHECK SYMPTOM
Check again.

OK or NG
OK >> INSPECTION END
NG >> GO TO 3.

3. PERFORM TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.