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AV U1300 AV COMM CIRCUIT AV-235 < COMPONENT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] C D E F G H I J K L M B A O P U1300 AV COMM CIRCUIT Description INFOID:0000000003765676 U1300 is indicated when malfunction occurs in communication signal of multi AV system. Indicated simulta- Self-diagnosis results display item DTC Display contents of CONSULT-III Description Possible malfunction factor/Action to take U1300 • AV COMM CIRCUIT [U1300] • SWITCH CONN [U1240] When either one of the following items is detected: are malfunctioning. • AV communication circuits between AV control unit and multifunction switch are malfunctioning. • AV communication signal between AV control unit and multifunction switch is malfunctioning. • Multifunction switch power supply TION SWITCH : Diagnosis Proce- . • AV communication circuits be- tween AV control unit and multi- U1300 • AV COMM CIRCUIT [U1300] • DVD DECK CONN [U1248] When either one of the following items is detected: functioning. • AV communication circuits between BOSE amp. and DVD player are malfunctioning. • AV communication signal between AV control unit and DVD player is malfunctioning. • DVD player power supply and • AV communication circuits be- tween BOSE amp. and DVD player. U1300 U124E • AV COMM CIRCUIT [U1300] • AMP CONN [U124E] When either one of the following items is detected: functioning. • AV communication signal between AV control unit and BOSE amp. is malfunctioned. BOSE amp. power supply and ground U1300 • AV COMM CIRCUIT [U1300] • REAR-CAMERA LAN CONN [U1252] Camera control unit power supply and ground circuits are Camera control unit power supply TROL UNIT : Diagnosis Procedure" U1300 U124E • AV COMM CIRCUIT [U1300] • DVD DECK CONN [U1248] • AMP CONN [U124E] When either one of the following items is detected: and BOSE amp. are malfunctioning. • AV communication signal between NAVI control unit and BOSE amp. is malfunctioning. AV communication circuits between U1300 U124E U1252 • AV COMM CIRCUIT [U1300] • DVD DECK CONN [U1248] • AMP CONN [U124E] CONN [U1252] With rear control switch When either one of the following items is detected: • malfunction is detected in AV communication circuits between rear control switch and camera control unit. • malfunction is detected in AV communication circuits between camera control unit and BOSE amp. • AV communication circuits be- tween multifunction switch and rear • AV communication circuits be- tween rear control switch and cam- Without rear control switch When either one of the following items is detected: • malfunction is detected in AV communication circuits between multifunction switch and camera control unit. • malfunction is detected in AV communication circuits between camera control unit and BOSE amp. AV communication circuits between U1300 U124E U1252 • AV COMM CIRCUIT [U1300] • SWITCH CONN [U1240] • DVD DECK CONN [U1248] • AMP CONN [U124E] CONN [U1252] When either one of the following items is detected: multifunction switch are malfunctioning. • AV communication signal between AV control unit and multifunction switch is malfunctioning. AV communication circuits between |