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DTC U0073/94 Control Module Communication Bus OFF: Description

The skid control ECU receives the signal sent from the ECM via the CAN communication system. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.

DTC DETECTION CONDITION CHART

DTC Code DTC Detection Condition Trouble Area
U0073/94 When either of the following is detected:
  1. With terminal IG1 10 V or more, data output from skid control ECU is completed, and output continues for 5 seconds or more.
  2. With terminal IG1 10 V or more, bus off condition occurs one time or more within 0.3 seconds.
 CAN communication system
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