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Diagnostic Procedure NHAT0057 1 CHECK SHIFT UP (D 3 TO D 4 ) During “Cruise test − Part 1” (AT-77), does A/T shift from D 3 to D 4 at the specified speed? SAT988H Yes or No Yes © GO TO 11. No © GO TO 2. 2 CHECK LINE PRESSURE Perform line pressure test. MTBL1183 OK or NG OK © GO TO 3. NG © GO TO 7. 3 CHECK SHIFT SOLENOID VALVE RESISTANCE 1. Remove control valve assembly. Refer to AT-282. I Shift solenoid valve A I Shift solenoid valve B 2. Check resistance between two terminals. SAT822K OK or NG OK © GO TO 4. NG © Replace shift solenoid valve assembly. GI MA EM LC EC FE AX SU BR ST RS BT HA SC EL IDX DTC P0734 A/T 4TH GEAR FUNCTION Diagnostic Procedure AT-153 |