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

      Tip:

      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 hereClick hereClick here

    B

    GO TO CAN COMMUNICATION SYSTEM

    Click here