CRUISE CONTROL SYSTEM(for 1ND-TV with Driving support ECU), Diagnostic DTC:U0100, U0129, U1104

DTC Code DTC Name
U0100 Lost Communication with ECM
U0129 Lost Communication with Brake System Control Module
U1104 Lost Communication with Driving Support ECU

DESCRIPTION

When a communication malfunction occurs between the sensors and ECUs, this DTC is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0100 Lost Communication with ECM When the ignition switch is ON, a communication error between the ECM and the driving support ECU assembly is detected for approximately 3 seconds.

  • CAN communication system

  • ECM

  • Driving support ECU assembly
U0129 Lost Communication with Brake System Control Module When the ignition switch is ON, a communication error between the skid control ECU and the driving support ECU assembly is detected for approximately 3 seconds.

  • CAN communication system

  • Skid control ECU

  • Driving support ECU assembly
U1104 Lost Communication with Driving Support ECU When the ignition switch is ON, a communication error between the ECM or skid control ECU and the driving support ECU assembly is detected for approximately 1 second.

  • CAN communication system

  • ECM

  • Skid control ECU

  • Driving support ECU assembly

PROCEDURE


  1. CHECK FOR DTCs


    1. Clear the DTCs.

      Click here


      Powertrain > Cruise Control > Clear DTCs

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

      Tech Tips

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

    3. Check for DTCs.

      Click here


      Powertrain > Cruise Control > Trouble Codes
      Result
      Result Proceed to
      CAN communication system DTCs are not output A
      CAN communication system DTCs are output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here