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14 CHECK CONTROL VALVE 1. Disassemble control valve assembly. Refer to AT-312. I Torque converter clutch control valve I Torque converter clutch relief valve SAT367H OK or NG OK © GO TO 15. NG © Repair control valve. 15 CHECK LOCK-UP Does A/T perform lock-up at the specified speed? Yes or No Yes © GO TO 16. No © Check control valve again. Repair or replace control valve assembly. 16 CHECK DTC Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-157. OK or NG OK © INSPECTION END NG © Perform “Cruise test — Part 1” again and return to the start point of this test group. GI MA EM LC EC FE AX SU BR ST RS BT HA SC EL IDX DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) Diagnostic Procedure (Cont’d) AT-165 |