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8 CHECK CONTROL VALVE 1. Disassemble control valve assembly. Refer to AT-314. I Pressure regulator valve I Pilot valve I Pressure modifier valve SAT367H OK or NG OK © GO TO 9. NG © Repair control valve. 9 CHECK SHIFT UP (D 3 TO D 4 ) Does A/T shift from D 3 to D 4 at the specified speed? OK or NG OK © GO TO 10. NG © Check control valve again. Repair or replace control valve assembly. 10 CHECK DTC Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-163. OK or NG OK © INSPECTION END NG © GO TO 11.Check for proper lock-up. 11 CHECK LOCK-UP During “Cruise test — Part 1” (AT-77), does A/T perform lock-up at the specified speed? SAT989H Yes or No Yes © Perform “Cruise test — Part 1” again and return to the start point of this test group. No © GO TO 12. 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-169 |