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
Perform self-diagnosis. Refer to TM-33, "CONSULT-III Function (TRANSMISSION)". Scan Tool Testing and Procedures
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 TM-64, "Diagnosis Procedure", TM-52, "Diagnosis Procedure", TM-47, "Diagnosis Procedure", TM-39, "Diagnosis Procedure".
P0740
P0725
P0717
U1000
NO >> GO TO 2.

2. CHECK SYMPTOM
Check again. Refer to TM-202, "Cruise Test - Part 1". 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 TM-114, "Reference Value". TCM Reference Values
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.