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4 HARNESS CHECK-3 1. Check continuity between AV and NAVI control unit and ground. I When the screen looks yellowish YEL387E MTBL1735 MTBL1736 OK or NG OK © GO TO 5. NG © I Repair harness. I Check connector housings for disconnected or loose terminals. NAVIGATION SYSTEM Trouble Diagnoses (Cont’d) EL-432 |