With Rear View Monitor: Description

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.

U1300 is indicated when malfunction occurs in communication signal of multi AV system. Indicated simultaneously, without fail, with the malfunction of control units connected to AV control unit with communication line. Determine the possible malfunction cause from the table below.

Self-diagnosis results display item

SELF-DIAGNOSIS RESULTS TABLE

DTC	Display contents of CONSULT-III	Description	Possible malfunction factor/Action to take
U1300 U121F	AV COMM CIRCUIT [U1300] INTERNAL COMM [U121F]	When either one of the following items is detected. AV control unit power supply and ground circuits malfunction is detected. AV control unit malfunction is detected.	AV control unit power supply and ground circuits. When there is no malfunction, AV control unit is malfunctioning.
U1300 U1240	AV COMM CIRCUIT [U1300] SWITCH CONN [U1240]	When either one of the following items is detected. Multifunction switch power supply and ground circuits malfunction is detected. Malfunction is detected in AV communication circuits between multifunction switch and the junction of AV control unit and camera control unit.	Multifunction switch power supply and ground circuits. AV communication circuits between multifunction switch and the junction of AV control unit and camera control unit.
U1300 U1254	AV COMM CIRCUIT [U1300] IPOD CONN [U1254]	When either one of the following items is detected. Malfunction is detected in iPod adapter power supply and ground circuits. Malfunction is detected in AV communication circuits between rear view camera control unit and iPod adapter.	iPod adapter power supply and ground circuits. AV communication circuits between rear view camera control unit and iPod adapter.
U1300 U1252	AV COMM CIRCUIT [U1300] REAR CAMERA LAN CONN [U1252]	Camera control unit power supply and ground circuits malfunction is detected.	Camera control unit power supply and ground circuits.
U1300 U1252 U1254	AV COMM CIRCUIT [U1300] REAR CAMERA LAN CONN [U1252] IPOD CONN [U1254]	Malfunction is detected in AV communication circuits between camera control unit and the junction of AV control unit and multifunction switch.	AV communication circuits between camera control unit and the junction of AV control unit and multifunction switch.
U1300 U1240 U1252 U1254	AV COMM CIRCUIT [U1300] SWITCH CONN [U1240] REAR CAMERA LAN CONN [U1252] IPOD CONN [U1254]	Malfunction is detected in AV communication circuits between AV control unit and the junction of camera control unit and multifunction switch.	AV communication circuits between AV control unit and the junction of camera control unit and multifunction switch.
U1300 U121F U1240 U1252 U1254	AV COMM CIRCUIT [U1300] INTERNAL COMM [U121F] SWITCH CONN [U1240] REAR CAMERA LAN CONN [U1252] IPOD CONN [U1254]	Malfunction is detected in AV communication circuits.	Check and repair the short circuit in AV communication circuits.