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SYMPTOM TROUBLESHOOTING 05–03–15 05–03 NO.12 TORQUE CONVERTER CLUTCH (TCC) NON-OPERATION A3U050301030W16 Diagnostic procedure Note • If malfunction remains, inspect related Service Bulletins and perform repair or diagnosis. • If vehicle is repaired, troubleshooting is completed. • If vehicle is not repaired or additional diagnostic information is not available, replace PCM. End Of Sie NO.13 NO KICKDOWN A3U050301030W17 End Of Sie 12 Torque converter clutch (TCC) non-operation DESCRIPTION • TCC does not operate when vehicle reaches TCC operation range. POSSIBLE CAUSE • Basically, the TCC does not operate when the fail-safe is operating. Verify the DTC first. If the TCC Caution •••• If the TCC is stuck, inspect it. In addition, inspect the oil cooler for foreign particles which a. TCC burned • TP sensor malfunction • TFT sensor malfunction • VSS malfunction • Input/turbine speed sensor malfunction • Sensor GND malfunction • Shift solenoid D malfunction (Sticking) • Shift solenoid E malfunction (Sticking) • Shift solenoid A malfunction (Sticking) • Shift solenoid B malfunction (Sticking) • Shift solenoid C malfunction (Sticking) • TCC hydraulic pressure system (Poor operation, sticking) b. TP sensor malfunction (Not operating linearly) STEP INSPECTION ACTION 1 • Remove torque converter. • Inspect torque converter. • Is torque converter okay? Yes Repeat basic inspection and repair or replace any defective No Replace torque converter. 13 No kickdown DESCRIPTION • Does not downshift when accelerator pedal is fully depressed within kickdown range. POSSIBLE CAUSE • If the transaxle does not downshift though shifting is normal, the malfunction is in the TP sensor circuit 1712-1U-01G(05-03).fm 15 ページ 2001年6月29日 金曜日 午前10時8分 |