|
|
Diagnostic Procedure =NBAT0055 1 CHECK SHIFT UP (D 3 TO D 4 ) During “Cruise test − Part 1”, AT-71. 3 to D 4 at the specified speed? SAT988H Yes or No Yes © I GO TO 10. I And check for proper lock-up. No © GO TO 2. 2 CHECK LINE PRESSURE Perform line pressure test. Refer to AT-62. OK or NG OK © GO TO 3. NG © GO TO 6. 3 CHECK CONTROL VALVE 1. Disassemble control valve assembly. Refer to AT-301. I Valve, sleeve and plug slide along valve bore under their own weight. I Valve, sleeve and plug are free from burrs, dents and scratches. I Control valve springs are free from damage, deformation and fatigue. I Hydraulic line is free from obstacles. SAT367H OK or NG OK © GO TO 4. NG © Repair control valve. GI MA EM LC EC FE TF PD AX SU BR ST RS BT HA SC EL IDX DTC P0744 IMPROPER LOCK-UP OPERATION Diagnostic Procedure AT-157 |