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NO.16 JUDDER UPON TORQUE CONVERTER CLUTCH (TCC) OPERATION [JA5A-EL]

BME050301030252

16 | Judder upon torque converter clutch (TCC) operation
DESCRIPTION | • Vehicle jolts when TCC engaged.
POSSIBLE CAUSE | • Poor TCC engagement due to either slippage because the TCC is stuck or line pressure is low.

  Caution

  • If the TCC is stuck, inspect it. In addition, inspect the oil cooler for foreign particles which may have mixed in with the ATF.

  1. Torque converter clutch piston slipped, burned

  • Line pressure low
  • Incorrect throttle position signal
  • VSS malfunction
  • Input/turbine speed sensor malfunction
  • Sensor GND malfunction
  • TCC solenoid valve malfunction
  • Control valve body malfunction

  2. Torque converter malfunction

  Note

  • Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted.