ELECTRONICALLY CONTROLLED BRAKE SYSTEM, Diagnostic DTC:U0073/94, U0123/62, U0124/95, U0126/63, U0128/13, U0130/68, U0182, U0293/59, U1108/21, U1109/22

DTC Code DTC Name
U0073/94 Control Module Communication Bus OFF
U0123/62 Lost Communication with Yaw Rate Sensor Module
U0124/95 Lost Communication with Lateral Acceleration Sensor Module
U0126/63 Lost Communication with Steering Angle Sensor Module
U0128/13 Lost Communication with Park Brake Control Module
U0130/68 Lost Communication with Steering Effort Control Module
U0182 Lost Communication with AFS ECU
U0293/59 Communication Error from HV ECU
U1108/21 Lost Communication with Front Active Stabilizer ECU
U1109/22 Lost Communication with Rear Active Stabilizer ECU

DESCRIPTION

The skid control ECU communicates with the hybrid vehicle control ECU, power steering ECU, steering control ECU, electric parking brake ECU, front active stabilizer control ECU, rear active stabilizer control ECU, steering angle sensor and yaw rate and acceleration sensor via the CAN communication system.

DTC Code Information Code DTC Detection Condition Trouble Area
U0073/94 400

Yaw rate and acceleration sensor communication response malfunction:

With IG1 voltage 10 V or more, communication with G sensor does not occur for 1 second or more.

  • CAN communication line 1 (Steering bus)

  • Yaw rate and acceleration sensor

  • Skid control ECU
↑ 402

Steering angle sensor communication response malfunction:

With IG1 voltage 10 V or more, communication with steering angle sensor does not occur for 1 second or more.

  • CAN communication line 1 (Steering bus)

  • Steering angle sensor

  • Skid control ECU
↑ 403

Steering control ECU communication response malfunction:

With IG1 voltage 10 V or more, communication with steering control ECU does not occur for 1 second or more.

  • CAN communication line 1 (Steering bus)

  • Steering control ECU
↑

405

410

 CAN communication line 3 (V bus) has open or short, and cannot perform communication (405: continuous bus off malfunction (V bus); 410: transmission lock malfunction (V bus)).

  • CAN communication line 3 (V bus)

  • Skid control ECU
↑

406

411

 CAN communication line 2 (braking and driving bus) has open or short, and cannot perform communication (406: continuous bus off malfunction (braking and driving bus); 411: transmission lock malfunction (braking and driving bus)).

  • CAN communication line 2 (Braking and driving bus)

  • Skid control ECU
↑

407

412

 CAN communication line 1 (steering bus) has open or short, and cannot perform communication (407: continuous bus off malfunction (steering bus); 412: transmission lock malfunction (steering bus)).

  • CAN communication line 1 (Steering bus)

  • Skid control ECU
U0123/62 338 With the IG1 terminal voltage 10 V or more, data from the yaw rate sensor cannot be received for 1 second or more.

  • CAN communication system

  • Yaw rate and acceleration sensor

  • Skid control ECU
↑ 339

With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.


  • The condition that data from the yaw rate sensor cannot be received occurs once or more within 5 seconds.

 ↑
U0124/95 319 With the IG1 terminal voltage 10 V or more, data from the acceleration sensor cannot be received for 1 second or more

  • CAN communication system

  • Yaw rate and acceleration sensor

  • Skid control ECU
↑ 320

With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.


  • The condition that data from the acceleration sensor cannot be received occurs once or more within 5 seconds.

 ↑
U0126/63 350 With the IG1 terminal voltage 10 V or more, data from the steering angle sensor cannot be received for 1 second or more.

  • CAN communication system

  • Steering angle sensor

  • Skid control ECU
↑ 601

With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.


  • The condition that data from the steering angle sensor cannot be received occurs once or more within 5 seconds.

 ↑
U0128/13 425 With terminal IG1 voltage at 10 V or more, data cannot be received from the electric parking brake ECU for 1 second.

  • CAN communication system

  • Electric parking brake ECU

  • Skid control ECU
U0130/68 370 With the IG1 terminal voltage 10 V or more, data from the steering control ECU cannot be received for 1 second or more.

  • CAN communication system

  • Steering control ECU

  • Skid control ECU
↑ 371

With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.


  • The condition that data from the steering control ECU cannot be received occurs once or more within 5 seconds.

 ↑
U0182 - With the IG1 terminal voltage at 10 V or more, data from the AFS ECU cannot be received for 1 second or more.

  • CAN communication system

  • AFSl ECU

  • Skid control ECU
U0293/59

152

153

When one of the following conditions is met:


  1. Both of the following conditions are met:


    • IG2 terminal voltage is 9.5 V or more

    • Data cannot be received from the hybrid vehicle control ECU for 2 seconds or more

  2. Both of the following conditions are met:


    • IG2 terminal voltage is 9.5 V or more

    • The following occurs 10 times in succession: data cannot be received from the hybrid vehicle control ECU once or more within 5 seconds.

  • CAN communication system

  • AFS ECU

  • Skid control ECU
U1108/21

610

611

When either of the following conditions is met:


  1. Both of the following conditions are met:


    • IG1 terminal voltage is 10 V or more

    • Data cannot be received from the front active stabilizer control ECU for 1 second or more

  2. Both of the following conditions are met:


    • IG1 terminal voltage is 10 V or more

    • The following occurs 10 times in succession: Data cannot be received from the front active stabilizer control ECU once or more within 5 seconds.

  • CAN communication system

  • Front active stabilizer control ECU

  • Skid control ECU
U1109/22

612

613

When either of the following conditions is met:


  1. Both of the following conditions are met:


    • IG1 terminal voltage is 10 V or more

    • Data cannot be received from the rear active stabilizer control ECU for 1 second or more

  2. Both of the following conditions are met:


    • IG1 terminal voltage is 10 V or more

    • The following occurs 10 times in succession: Data cannot be received from the rear active stabilizer control ECU once or more within 5 seconds.

  • CAN communication system

  • Rear active stabilizer control ECU

  • Skid control ECU

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      DTCs is not output A
      DTCs is output for LHD B
      for RHD C

      Tech Tips

      The CAN communication system must be normal when repairing the sensor DTCs (for ABS, VSC and electronically controlled brake system).


    B

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

    C

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

    A

    USE SIMULATION METHOD TO CHECK Click here