NO.12 TORQUE CONVERTER CLUTCH (TCC) NON-OPERATION [AY6A-EL]
| 12 | Torque converter clutch (TCC) non-operation |
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| DESCRIPTION | TCC does not operate when vehicle reaches TCC operation range. |
| POSSIBLE CAUSE | Basically, TCC does not operate when the fail-safe is operating. Verify the DTC at first. If the TCC operates when driving at high speeds only, the malfunction (improper adjustment) is in the M position switch circuit or TR switch circuit. 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. TCC slippage, burnt Line pressure low Incorrect accelerator opening signal Input/turbine speed sensor malfunction VSS malfunction Output solenoid valve system malfunction (Sticking) TCC control solenoid malfunction Control valve body system malfunction (Poor operation, sticking) TCC hydraulic pressure system malfunction APP sensor malfunction (Not operating linearly) Input/turbine speed sensor or VSS malfunction Brake switch malfunction (always ON) CKP sensor malfunction CHT sensor malfunction Operation of fail-safe function. Short to power or ground at TCC control solenoid related circuit. NOTE: Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [AY6A-EL] .) |
| CAUTION |
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| If the TCC is stuck, inspect it. In addition, inspect the oil cooler for foreign particles which may have mixed in with the ATF. |
| NOTE |
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| Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [AY6A-EL] .) |
NO.16 JUDDER UPON TORQUE CONVERTER CLUTCH (TCC) OPERATION [AY6A-EL]
| 16 | Judder upon torque converter clutch (TCC) operation |
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| DESCRIPTION | Vehicle jolts when TCC is engaged. |
| POSSIBLE CAUSE | Poor TCC engagement due to either slippage because the TCC piston is stuck or the 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. TCC slippage, burnt Line pressure low Incorrect accelerator opening signal VSS malfunction Input/turbine speed sensor malfunction Sensor ground malfunction TCC control solenoid malfunction Control valve body malfunction Torque converter malfunction Centrifugal hydraulic pressure clutch is not operating properly |
| 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. TCC slippage, burnt Line pressure low Incorrect accelerator opening signal VSS malfunction Input/turbine speed sensor malfunction Sensor ground malfunction TCC control solenoid malfunction Control valve body malfunction Torque converter malfunction Centrifugal hydraulic pressure clutch is not operating properly |
NO.19 EXCESSIVE SHIFT SHOCK ON TORQUE CONVERTER CLUTCH (TCC) [AY6A-EL]
| 19 | Excessive shift shock on torque converter clutch (TCC) |
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| DESCRIPTION | Strong shock is felt when the TCC is engaged. |
| POSSIBLE CAUSE | The troubleshooting flow is the same as No.16 "JUDDER UPON TORQUE CONVERTER CLUTCH (TCC) OPERATION". |
