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AV-144 < FUNCTION DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] DIAGNOSIS SYSTEM (AV CONTROL UNIT) Vehicle CAN Diagnosis • CAN communication status and error counter is displayed. detected in the past and displays “0” if a malfunction is detected. It • The error counter is erased if reset. Error item Description Possible malfunction factor/Action to take CAN COMM CIRCUIT CAN communication malfunction is detect- Perform diagnosis with CONSULT-III, and AV-145, "CONSULT - III Function" CONTROL UNIT (CAN) CAN initial diagnosis malfunction is detect- Replace the AV control unit CONTROL UNIT (AV) AV communication circuit initial diagnosis FLASH-ROM Error Of Control Unit AV control unit malfunction is detected CAN Controller Memory Error Front Display Connection Error • 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 SAT Connection Error • Satellite radio tuner power supply and ground circuit malfunction is detected • Malfunction is detected on communica- tion signal between satellite radio tuner Satellite radio tuner power supply and • AV COMM CIRCUIT • Multifunction switch power supply and ground circuit malfunction is detected • 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 • Multifunction switch power supply and ground circuits • Communication circuit between AV con- trol unit and multifunction switch • AV COMM CIRCUIT • TEL adapter unit power supply and ground circuit malfunction is detected • Malfunction is detected in communica- tion circuit between TEL adapter unit and • Malfunction is detected in communica- tion signal between TEL adapter unit and TEL adapter unit power supply and ground • AV COMM CIRCUIT Malfunction is detected in communication Communication circuit between AV control Items Display (Current) Malfunction counter (Past) Tx (HVAC) OK / UNKWN OK / 0 - 39 Rx (ECM) OK / UNKWN OK / 0 - 39 Rx (Cluster) OK / UNKWN OK / 0 - 39 JSNIA0080GB |