No.14 Torque Converter Clutch (TCC) Non-Operation: Notes

WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

TORQUE CONVERTER CLUTCH (TCC) NON-OPERATION DESCRIPTION AND POSSIBLE CAUSE

14	Torque converter clutch (TCC) non-operation
DESCRIPTION	TCC does not operate when vehicle reaches TCC operation range.
POSSIBLE CAUSE	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. While performing the driving test, monitor output signal to TCC solenoid. If output signal is sent normally to TCC solenoid and TCC does not occur, oil passage of TCC solenoid is clogged or TCC piston is operating improperly. If output signal is not sent to TCC solenoid normally, TFT sensor governing TCC is malfunctioning. (TCC does not occur when ATF temperature is 10 °C {50 °F} or less. ) Improper adjustment of TR switch NOTE: Before following the troubleshooting steps, make sure that the Automatic Transmission On-Board Diagnostic and Automatic Transmission Basic Inspection are conducted. (See BASIC INSPECTION .)

Torque converter clutch (TCC) non-operation

DESCRIPTION

TCC does not operate when vehicle reaches TCC operation range.

POSSIBLE CAUSE

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.

While performing the driving test, monitor output signal to TCC solenoid.
If output signal is sent normally to TCC solenoid and TCC does not occur, oil passage of TCC solenoid is clogged or TCC piston is operating improperly.
If output signal is not sent to TCC solenoid normally, TFT sensor governing TCC is malfunctioning. (TCC does not occur when ATF temperature is 10 °C {50 °F} or less. )
Improper adjustment of TR switch
NOTE:
- Before following the troubleshooting steps, make sure that the Automatic Transmission On-Board Diagnostic and Automatic Transmission Basic Inspection are conducted. (See BASIC INSPECTION .)