JUDDER UPON TORQUE CONVERTER CLUTCH (TCC) OPERATION [GW6A-EL, GW6AX-EL]


id050320101900

TROUBLESHOOTING ITEM

Judder upon torque converter clutch (TCC) operation

DESCRIPTION
•  Vehicle jolts when TCC is engaged.
POSSIBLE CAUSE
1.  Signal malfunction
?  APP sensor malfunction
?  CKP sensor malfunction
2.  Torque converter malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY MALFUNCTION SYMPTOM
•  Is the malfunction symptom at the same level compared to a vehicle of the same model?
Yes
Symptom troubleshooting is completed.
No
Go to the next step.
2
INSPECT SIGNAL PARTS FOR MALFUNCTION
•  Inspect the value at the following PCM PIDs using the M-MDS.
?  APP (APP sensor)
?  RPM (CKP sensor)
•  Is there any malfunction?
Yes
Repair or replace any malfunctioning parts according to the inspection result.
No
Replace the automatic transaxle.