#
NO.16 JUDDER UPON TORQUE CONVERTER CLUTCH (TCC) OPERATION [JA5AX-EL]

id050305802100

16 | Judder upon torque converter clutch (TCC) operation
DESCRIPTION | • Vehicle jolts when TCC engaged.
POSSIBLE CAUSE | • Poor TCC engagement due to either slippage because TCC piston is stuck or line pressure is low. Caution • If the TCC or piston are stuck, inspect them. In addition, inspect the oil cooler for foreign particles which may have mixed in with the ATF. - Torque converter clutch piston slipped, burned • Line pressure low • Incorrect throttle position signal • Malfunction of VSS • Malfunction of input/turbine speed sensor • Malfunction of sensor ground • Malfunction of TCC solenoid valve • Malfunction of control valve body - Malfunction of torque converter Note • Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.