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4 CHECK VOICE SIGNAL CIRCUIT 1. Turn ignition switch OFF. SEL647X Yes or No Yes © Repair or replace audio unit. Refer to “AUDIO” in EL section of Service Manual (SM0E- No © Repair or replace harness or connector. GI MA EM LC EC FE AT AX SU BR ST RS BT HA SC IDX NAVIGATION SYSTEM Trouble Diagnoses (Cont’d) EL-509 |