NO.15 EXCESSIVE SHIFT SHOCK ON TORQUE CONVERTER CLUTCH (TCC) [DJVA-EL]

id050312247700

15	Excessive shift shock on torque converter clutch (TCC)
DESCRIPTION	•  Strong shock is felt when torque converter clutch (TCC) is engaged.
POSSIBLE CAUSE	Deviation from the input sensor characteristic or a torque converter clutch (TCC) pressure-adjusting system malfunction can be considered possible malfunctions. (Because lock-up does not operate based on fail-safe function activation when an open or short circuit occurs, shift shock does not occur.) The symptom troubleshooting procedure is basically the same as, "NO.11 TORQUE CONVERTER CLUTCH (TCC) NON-OPERATION". (See NO.11 TORQUE CONVERTER CLUTCH (TCC) NON-OPERATION [DJVA-EL].) •  Excessive operation pressure on torque converter clutch (TCC) ―  Line pressure low ―  Input signal malfunction (Characteristic defective) •  APP sensor •  CKP sensor •  Input/turbine speed sensor •  Transaxle fluid temperature (TFT) sensor •  VSS •  Sensor GND ―  Control solenoid malfunction (Sticking) •  Torque converter clutch (TCC) solenoid •  Torque converter clutch (TCC) engage solenoid •  Body GND ―  Control valve body malfunction (Improper operation, stuck, restrict oil line) •  Torque converter clutch (TCC) operation system •  Line pressure-adjusting