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Self-Diagnosis Results

Only Unit Part Is Displayed In Red (MCAN)

Screen switch	Description	Possible malfunction location / Action to take
Head Unit	Malfunction is detected in AV control unit power supply and ground circuits.	Check AV control unit power supply and ground circuits. Refer to Diagnosis Procedure . When no malfunction is detected in those circuits, replace AV control unit. Refer to Removal and Installation .
Sep. AMP	Malfunction is detected in Bose speaker amp. power supply and ground circuits.	Check Bose speaker amp. power supply and ground circuits. Refer to Diagnosis Procedure . When no malfunction is detected in those circuits, replace Bose speaker amp. Refer to Removal and Installation .
TCU	Malfunction is detected in TCU power supply and ground circuits.	Check TCU power supply and ground circuits. Refer to Diagnosis Procedure . When no malfunction is detected in those circuits, replace TCU. Refer to Removal and Installation .
ISW	Malfunction is detected in head up display unit power supply and ground circuits.	Check head up display unit power supply and ground circuits. Refer to Diagnosis Procedure . When no malfunction is detected in those circuits, replace head up display unit. Refer to Removal and Installation .
Meter	Malfunction is detected in combination meter power supply and ground circuits.	Check combination meter power supply and ground circuits. Refer to Diagnosis Procedure . When no malfunction is detected in those circuits, replace combination meter. Refer to Removal and Installation .
Sec Display	Malfunction is detected in integral switch power supply and ground circuits.	Check integral switch power supply and ground circuits. Refer to Diagnosis Procedure . When no malfunction is detected in those circuits, replace integral switch. Refer to Removal and Installation .

Only Unit Part Is Displayed In Red (Head Unit)

Screen switch	Description	Possible malfunction location / Action to take
Head Unit	Malfunction is detected in AV control unit power supply and ground circuits.	Check AV control unit power supply and ground circuits. Refer to Diagnosis Procedure . When no malfunction is detected in those circuits, replace AV control unit. Refer to Removal and Installation .
Amplifier	Malfunction is detected in the internal amplifier of the AV control unit.	Replace the AV control unit. Refer to Removal and Installation .
Conn Modules	Malfunction is detected in the internal Bluetooth ^® module of the AV control unit.	Replace the AV control unit. Refer to Removal and Installation .
Antenna	Malfunction is detected in antenna signal circuit.	Check antenna signal circuit. Refer to Diagnosis Procedure . When no malfunction is detected in the circuit, replace antenna. Refer to Removal and Installation .
XM	Malfunction is detected in satellite antenna signal circuit.	Check satellite antenna signal circuit. Refer to Diagnosis Procedure . When no malfunction is detected in the circuit, replace satellite antenna. Refer to Removal and Installation .
GPS	Malfunction is detected in GPS antenna signal circuit.	Check GPS antenna signal circuit. Refer to Diagnosis Procedure . When no malfunction is detected in the circuit, replace GPS antenna. Refer to Removal and Installation .
LVDS	Malfunction is detected in the LVDS harness for the display unit. Malfunction is detected in the LVDS harness for the integral switch.	Replace the LVDS harness.
Microphone	Malfunction is detected in microphone signal circuit.	Check microphone signal circuit. Refer to Diagnosis Procedure . When no malfunction is detected in the circuit, replace microphone switch. Refer to Removal and Installation .
USB	Malfunction is detected in the USB harness for the front auxiliary input jacks control unit. Malfunction is detected in the USB harness for the TCU.	Replace the USB harness.
FAN	Malfunction is detected in the internal fan of the AV control unit.	Replace the AV control unit. Refer to Removal and Installation .

A Connecting Cable Between Units Is Displayed In Yellow (MCAN)

Area with yellow connection lines	Description	Possible malfunction location / Action to take
Head Unit <=> Sep. AMP	Bose speaker amp. AV communication connection malfunction detected.	AV communication circuits between AV control unit and Bose speaker amp. Refer to Diagnosis Procedure .
Head Unit <=> TCU	TCU AV communication connection malfunction detected.	AV communication circuits between AV control unit and TCU. Refer to Diagnosis Procedure .
Head unit <=> ISW	Head up display unit AV communication connection malfunction detected.	AV communication circuits between AV control unit and head up display unit. Refer to Diagnosis Procedure .
Head unit <=> Meter	Combination meter AV communication connection malfunction detected.	AV communication circuits between AV control unit and combination meter. Refer to Diagnosis Procedure .
Head unit <=> Sec Display	Integral switch AV communication connection malfunction detected.	AV communication circuits between AV control unit and integral switch. Refer to Diagnosis Procedure .