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12. A/T Does Not Perform Lock-up =NBAT0084 SYMPTOM: 1 CHECK SELF-DIAGNOSTIC RESULTS Does self-diagnosis show damage to torque converter clutch solenoid valve circuit after cruise test? SAT581I Yes or No Yes © Check torque converter clutch solenoid valve circuit. Refer to “DTC P0740”, AT-148. No © GO TO 2. 2 CHECK THROTTLE POSITION SENSOR Check throttle position sensor. Refer to EC-174, “Description”. SAT142K OK or NG OK © GO TO 3. NG © Repair or replace throttle position sensor. 3 DETECT MALFUNCTIONING ITEM 1. Remove control valve. Refer to AT-273. I Torque converter clutch control valve I Torque converter relief valve I Torque converter clutch solenoid valve I Pilot valve I Pilot filter OK or NG OK © GO TO 4. NG © Repair or replace damaged parts. GI MA EM LC EC FE TF PD AX SU BR ST RS BT HA SC EL IDX TROUBLE DIAGNOSES FOR SYMPTOMS 12. A/T Does Not Perform Lock-up AT-245 |