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9 CHECK VACUUM CUT VALVE Check vacuum cut valve as follows: SEF379Q a. Plug port C and D with fingers. OK or NG OK © GO TO 10. NG © Replace vacuum cut valve. 10 CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR HOSE 1. Turn ignition switch “OFF”. OK or NG OK © GO TO 11. NG © Repair or replace. 11 CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR 1. Disconnect EVAP control system pressure sensor harness connector. SEF495R 2. Check connectors for water. Water should not exist. OK or NG OK © GO TO 12. NG © Replace EVAP control system pressure sensor. GI MA EM LC FE AT TF PD AX SU BR ST RS BT HA SC EL IDX DTC P1491 VACUUM CUT VALVE BYPASS VALVE Diagnostic Procedure (Cont’d) EC-599 |