ANTI-LOCK BRAKE SYSTEM, Diagnostic DTC:U0073/94

DTC Code DTC Name
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 Code DTC Detection Condition Trouble Area
U0073/94

When either of the following is detected:


  1. With terminal IG1 at 10 V or higher, data output from the skid control ECU is completed, and output continues for 5 seconds or more.

  2. With terminal IG1 at 10 V or higher, bus off condition occurs at least once within 0.3 seconds.

 CAN communication system

INSPECTION PROCEDURE

Tech Tips

When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.

PROCEDURE


  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)


    1. Clear the DTCs Click here.

    2. Start the engine.

    3. Check for DTCs Click here and Click here.

      OK
      DTC is not output.

    NG

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here