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3 CHECK REVERSE POSITION INPUT SIGNAL/WITH NAVIGATION SYSTEM 1. Turn ignition switch OFF. 32 (G/W) and ground. MKIB0179E Battery voltage should exist. OK or NG OK © GO TO 5. NG © Check harness for open or short between AV and NAVI control unit and backup lamp 4 CHECK REVERSE POSITION INPUT SIGNAL/WITHOUT NAVIGATION SYSTEM 1. Turn ignition switch OFF. YEL579E OK or NG OK © GO TO 5. NG © Check harness for open or short between display unit and back up lamp switch (M/T REARVIEW MONITOR Trouble Diagnosis (Cont’d) EL-172 |