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6 CHECK LINE PRESSURE SOLENOID VALVE 1. Remove control valve assembly. Refer to AT-280. 2. Check line pressure solenoid valve operation. Refer to AT-173. SAT893J OK or NG OK © GO TO 7. NG © Replace solenoid valve assembly. 7 CHECK CONTROL VALVE 1. Disassemble control valve assembly. Refer to AT-312. 2. Check line pressure circuit valves for sticking. I Pressure regulator valve I Pilot valve I Pressure modifier valve SAT367H OK or NG OK © GO TO 8. NG © Repair control valve. GI MA EM LC EC FE CL MT 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-169 |