BLIND SPOT MONITOR SYSTEM, Diagnostic DTC:U0100, U0126, U0129, U0142

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0126 Lost Communication with Steering Angle Sensor Module
U0129 Lost Communication with Brake System Control Module
U0142 Lost Communication with Body Control Module "B"

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the blind spot monitor sensor.

Tech Tips

If CAN communication system DTCs are stored, they may also be stored for other systems.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0100 Lost Communication with ECM / PCM "A" Lost communication with ECM CAN communication system
U0126 Lost Communication with Steering Angle Sensor Module Lost communication with spiral cable with sensor sub-assembly CAN communication system
U0129 Lost Communication with Brake System Control Module Lost communication with vehicle stability control system CAN communication system
U0142 Lost Communication with Body Control Module "B" Lost communication with main body ECU (multiplex network body ECU) CAN communication system

CAUTION / NOTICE / HINT

Note

When checking for DTCs, make sure that the blind spot monitor main switch (warning cancel switch assembly*1 or telltale light assembly*2) is on.


  • *1: for LHD

  • *2: for RHD

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs.

      for LHD Click here

      for RHD Click here

    2. Check for DTCs.

      for LHD Click here

      for RHD Click here

      Result
      Proceed to
      DTCs are not output
      DTCs are output (for LHD)
      DTCs are output (for RHD)

      Tech Tips


      • If CAN communication system DTCs are stored, they may also be stored for other systems.

      • If the CAN communication system has been inspected and repaired, the DTCs will not be output when rechecking for DTCs.

      • If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.

        Click here


    DTCs are not output

    USE SIMULATION METHOD TO CHECK Click here

    DTCs are output (for LHD)

    GO TO CAN COMMUNICATION SYSTEM Click here

    DTCs are output (for RHD)

    GO TO CAN COMMUNICATION SYSTEM Click here