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AV DIAGNOSIS SYSTEM (AV CONTROL UNIT) AV-431 < FUNCTION DIAGNOSIS > [BOSE AUDIO WITH NAVIGATION] C D E F G H I J K L M B A O P FL speaker OUT: open Sound signal front speaker LH circuit is Check sound signal front speaker LH cir- FL speaker OUT: short Sound signal front speaker LH circuit is Check sound signal front speaker LH cir- FL speaker OUT: short to ground Sound signal front speaker LH circuit to Check sound signal front speaker LH cir- FL speaker OUT: short to battery Sound signal front speaker LH circuit to Check sound signal front speaker LH cir- FL tweeter OUT: open Sound signal front squawker LH circuit is Check sound signal front squawker LH cir- FL tweeter OUT: short Sound signal front squawker LH circuit is Check sound signal front squawker LH cir- FL tweeter OUT: short to ground Sound signal front squawker LH circuit to Check sound signal front squawker LH cir- FL tweeter OUT: short to battery Sound signal front squawker LH circuit to Check sound signal front squawker LH cir- FR tweeter OUT: open Sound signal front squawker RH circuit is Check sound signal front squawker RH cir- FR tweeter OUT: short Sound signal front squawker RH circuit is Check sound signal front squawker RH cir- FR tweeter OUT: short to ground Sound signal front squawker RH circuit to Check sound signal front squawker RH cir- FR tweeter OUT: short to battery Sound signal front squawker RH circuit to Check sound signal front squawker RH cir- GPS Antenna Error GPS antenna connection malfunction is de- Replace the GPS antenna. DVD Navi Internal Error NAVI control unit malfunction is detected. Replace the NAVI control unit. Bluetooth module Error TEL antenna connection malfunction is de- TEL antenna. AV COMM CIRCUIT Rear control switch power supply and Rear control switch power supply and • AV COMM CIRCUIT When either one of the following items is ground circuits are malfunctioning. • AV communication circuits between AV control unit and multifunction switch are • AV communication signal between AV control unit and multifunction switch is • Multifunction switch power supply and ground circuits. • AV communication circuits between AV control unit and multifunction switch. • AV COMM CIRCUIT NAVI control unit power supply and ground NAVI control unit power supply and ground • AV COMM CIRCUIT When either one of the following items is circuits are malfunctioning. • AV communication signal between AV control unit and BOSE amp is malfunc- BOSE amp. power supply and ground cir- Error item Description Possible malfunction factor/Action to take |