Trouble Judgment
DTC U0019 will be stored when the A/C-ECU or heater control unit <vehicles without A/C> ceases CAN communication (bus off) and then resumes the communication when the ignition switch is turned to the "LOCK" (OFF) position.
DTC U0019 will be stored when the A/C-ECU or heater control unit <vehicles without A/C> ceases CAN communication (bus off) and then resumes the communication when the ignition switch is turned to the "LOCK" (OFF) position.