Av Control Unit Self Diagnosis Results

Only Unit Part Is Displayed In Red
Screen switch	Description	Possible cause
Control Unit	Malfunction is detected in AV control unit power supply and ground circuits.	AV control unit power supply and ground circuits. Refer to DIAGNOSIS PROCEDURE . If no malfunction is detected in AV control unit power supply and ground circuits, replace AV control unit. Refer to REMOVAL AND INSTALLATION .
Cluster	Malfunction is detected in combination meter power supply and ground circuits.	Combination meter power supply and ground circuits. Refer to DIAGNOSIS PROCEDURE . If no malfunction is detected in combination meter power supply and ground circuits, replace combination meter. Refer to REMOVAL AND INSTALLATION .
IT-Commander	Malfunction is detected in multifunction switch power supply and ground circuits.	Multifunction switch power supply and ground circuits. Refer to DIAGNOSIS PROCEDURE . If no malfunction is detected in multifunction switch power supply and ground circuits, replace multifunction switch. Refer to REMOVAL AND INSTALLATION .
Amplifier	Malfunction is detected in Bose speaker amp. power supply and ground circuits.	Bose speaker amp. power supply and ground circuits. Refer to DIAGNOSIS PROCEDURE . If no malfunction is detected in Bose speaker amp. power supply and ground circuits, replace Bose speaker amp. Refer to REMOVAL AND INSTALLATION .
TCU	Malfunction is detected in TCU power supply and ground circuits.	TCU power supply and ground circuits. Refer to DIAGNOSIS PROCEDURE . If no malfunction is detected in TCU power supply and ground circuits, replace TCU. Refer to REMOVAL AND INSTALLATION .

A Connecting Cable Between Units Is Displayed In Yellow
Area with yellow connection lines	Description	Possible cause
IT-Commander ==> Control Unit	AV communication circuits between multifunction switch and AV control unit are malfunctioning.	AV communication circuits. Refer to DTC DESCRIPTION .
Cluster ==> Control Unit	AV communication circuits between combination meter and AV control unit are malfunctioning.
Control Unit ==> Amplifier	AV communication circuits between AV control unit and Bose speaker amp. are malfunctioning.
Control Unit ==> XM Antenna	Satellite radio antenna connection malfunction is detected.	Satellite radio antenna disconnected. Refer to DTC DESCRIPTION .
Control Unit ==> GPS Antenna	GPS antenna connection malfunction is detected.	GPS antenna connector disconnected. Refer to DTC DESCRIPTION .
Control Unit ==> TCU	AV communication circuits between AV control unit and TCU are malfunctioning.	AV communication circuits. Refer to DTC DESCRIPTION .