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FRONT SIDE RADAR SENSOR SYSTEM(for Stereo Camera Type), Diagnostic DTC:U0100, U0125, U0126, U0129, U0293

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DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0125 Lost Communication with Yaw Rate Sensor Module
U0126 Lost Communication with Steering Angle Sensor Module
U0129 Lost Communication with Brake System Control Module
U0293 Lost Communication with HV ECU
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DESCRIPTION

The object recognition camera communicates with each sensor and ECU via CAN communication.

If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
U0100 Lost Communication with ECM / PCM "A" While the vehicle speed is 5 km/h (3 mph) or more and 3 seconds or more elapsed after the power switch is on (IG), a communication error between the ECM and the front side radar sensor is detected for approximately 11 second or more.

  • CAN communication system

  • ECM

  • Front side radar sensor LH

  • Front side radar sensor RH

  • Front side radar sensor LH

  • Front side radar sensor RH
U0125 Lost Communication with Yaw Rate Sensor Module 3 seconds or more elapsed after the power switch is on (IG), a communication error between the yaw rate sensor and the front side radar sensor is detected for approximately 4 second or more.

  • CAN communication system

  • Yaw rate sensor

  • Front side radar sensor LH

  • Front side radar sensor RH

  • Front side radar sensor LH

  • Front side radar sensor RH
U0126 Lost Communication with Steering Angle Sensor Module 3 seconds or more elapsed after the power switch is on (IG), a communication error between the steering sensor and the front side radar sensor is detected for approximately 4 second or more.

  • CAN communication system

  • Steering sensor

  • Front side radar sensor LH

  • Front side radar sensor RH

  • Front side radar sensor LH

  • Front side radar sensor RH
U0129 Lost Communication with Brake System Control Module 3 seconds or more elapsed after the power switch is on (IG), a communication error between the skid control ECU assembly and the front side radar sensor is detected for approximately 4 second or more.

  • CAN communication system

  • Skid control ECU assembly

  • Front side radar sensor LH

  • Front side radar sensor RH

  • Front side radar sensor LH

  • Front side radar sensor RH
U0293 Lost Communication with HV ECU While the vehicle speed is 5 km/h (3 mph) or more and 3 seconds or more elapsed after the power switch is on (IG), a communication error between the hybrid vehicle control ECU assembly and the front side radar sensor is detected for approximately 11 second or more.

  • CAN communication system

  • Hybrid vehicle control ECU assembly

  • Front side radar sensor LH

  • Front side radar sensor RH

  • Front side radar sensor LH

  • Front side radar sensor RH
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PROCEDURE


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    CHECK FOR DTCs (FRONT SIDE RADAR MASTER, FRONT SIDE RADAR SLAVE)


    1. Clear the DTCs.

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      - Front side radar sensor RH:


      1. Body Electrical > Front Side Radar Master > Clear DTCs


      - Front side radar sensor LH:


      1. Body Electrical > Front Side Radar Slave > Clear DTCs


    2. Make sure that the DTC detection conditions are met.

      Tip:

      If the detection conditions are not met, the system cannot detect the malfunction.

    3. Check the DTCs.

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      - Front side radar sensor RH:


      1. Body Electrical > Front Side Radar Master > Trouble Codes


      - Front side radar sensor LH:


      1. Body Electrical > Front Side Radar Slave > Trouble Codes


      Result
      Result Proceed to
      DTC U100, U0125, U0126, U0129 and U0293 are not output A
      DTC U100, U0125, U0126, U0129 or U0293 is not output B