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AV-348 < FUNCTION DIAGNOSIS > [BOSE AUDIO WITH NAVIGATION] DIAGNOSIS SYSTEM (AV CONTROL UNIT) Error item Description Possible malfunction factor/Action to take CAN COMM CIRCUIT[U1000] CAN communication malfunction is detect- Perform diagnosis with CONSULT-III, and AV-347, "CONSULT - III Function" CONTROL UNIT (CAN) [U1010] CAN initial diagnosis malfunction is detect- Replace the AV control unit CONTROL UNIT (AV) [U1310] AV communication circuit initial diagnosis Control Unit FLASH-ROM [U1200] AV control unit malfunction is detected Gyro NO CONN [U1201] CAN CONT [U1216] BLUETOOTH CONN [U1217] HDD CONN [U1218] HDD READ [U1219] XM SERIAL COMM [U1220] HDD WRITE [U121A] HDD COMM [U121B] HDD ACCESS [U121C] DSP CONN [U121D] DSP COMM [U121E] INTERNAL COMM [U121F] AV control unit power supply and ground GPS COMM [U1204] GPS malfunction is detected An intermittent error caused by strong radio GPS ROM [U1205] GPS RAM [U1206] GPS RTC [U1207] FRONT DISP CONN [U1243] • Display unit power supply and ground circuit malfunction is detected • Malfunction is detected on communica- tion circuit between display unit and AV • Malfunction is detected on communica- tion signal between display unit and AV • Display unit power supply and ground circuit • Communication circuit between display unit and AV control unit GPS ANTENNA CONN [U1244] GPS antenna connection malfunction is de- GPS antenna XM ANTENNA CONN [U1258] Poor connection is detected in satellite ra- Satellite radio antenna CAMERA CONT. CONN [U1250] A malfunction is detected in Camera-con- Camera-connection recognition signal cir- CD CHANGER [N-BUS] [U124C] • A malfunction is detected in CD changer power supply and ground circuits • A malfunction is detected in communica- tion circuit between AV control unit and • A malfunction is detected in communica- tion signal between AV control unit and • CD changer power supply and ground circuits • Communication between AV control unit and CD changer (REQ1 signal or com- |