TOYOTA PARKING ASSIST-SENSOR SYSTEM(for Sedan without Simple Intelligent Parking Assist System), Diagnostic DTC:U0100, U0101, U0129, U0142, U0155

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0101 Lost Communication with TCM
U0129 Lost Communication with Brake System Control Module
U0142 Lost Communication with Body Control Module "B"
U0155 Lost Communication with Combination Meter

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the clearance warning ECU assembly.

Tech Tips

If CAN communication system DTCs are stored, they may also be stored in 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
U0101 Lost Communication with TCM Lost communication with transmission control ECU assembly CAN communication system
U0129 Lost Communication with Brake System Control Module Lost communication with brake actuator assembly (skid control ECU) CAN communication system
U0142 Lost Communication with Body Control Module "B" Lost communication with main body ECU (multiplex network body ECU) CAN communication system
U0155 Lost Communication with Combination Meter Lost communication with the combination meter assembly CAN communication system

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Clear the DTCs.

      Click here


      Body Electrical > Clearance Sonar / Simple-IPA. > Clear DTCs

    2. Recheck for DTCs and check if the same DTC is output again.


      Body Electrical > Clearance Sonar / Simple-IPA. > Trouble Codes
      OK
      No DTCs are output.

      Tech Tips


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

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

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

      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    GO TO CAN COMMUNICATION SYSTEM w/ Central Gateway ECU: Click here
    GO TO CAN COMMUNICATION SYSTEM w/o Central Gateway ECU: Click here