Lock-Up Is Not Released

SYSTEM SYMPTOM


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
Perform self-diagnosis. Refer to Diagnosis System (TCM).
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 P0740, P0725, P0717, A/T Control System.
NO - GO TO 2.
2.CHECK SYMPTOM
Check again. Refer to Cruise Test - Part 1.
OK or NG
OK >> INSPECTION END
NG - GO TO 3.
3.PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to A/T Control System.
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG - Repair or replace damaged parts.