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NAVIGATION SYSTEM AV-89 C D E F G H I J L M A B AV 2. HARNESS CHECK 1. Turn ignition switch OFF. 2. Disconnect AV and NAVI control unit connector and Display connector. 3. Check continuity between AV and NAVI control unit and Display. 4. Check continuity between AV and NAVI control unit and ground. ● When the screen looks bluish ● When the screen looks reddish ● When the screen looks yellowish OK or NG OK >> GO TO 3. NG >> Repair harness. Terminals Continuity AV and NAVI control unit (+) Display (–) Connector Terminal (Wire color) Connector Terminal (Wire color) B30 18 (R/L) M82 1 (R/L) YES B30 19 M82 4 YES Terminals Continuity AV and NAVI control unit(+) (–) Connector Terminal (Wire color) B30 18 (R/L),19 Ground NO SKIA3521E Terminals Continuity AV and NAVI control unit (+) Display (–) Connector Terminal (Wire color) Connector Terminal (Wire color) B30 21 (R/W) M82 2 (R/W) YES B30 19 M82 4 YES Terminals Continuity AV and NAVI control unit(+) (–) Connector Terminal (Wire color) B30 19,21 (R/W) Ground NO SKIA3522E Terminals Continuity AV and NAVI control unit (+) Display (–) Connector Terminal (Wire color) Connector Terminal (Wire color) B30 15 (B) M82 3 (B) YES B30 19 M82 4 YES Terminals Continuity AV and NAVI control unit(+) (–) Connector Terminal (Wire color) B30 19,15 (B) Ground NO SKIA3523E |