TOYOTA PARKING ASSIST-SENSOR SYSTEM (for 8 Sensor Type), Diagnostic DTC:U0101

DTC Code DTC Name
U0101 Lost Communication with TCM

DESCRIPTION

This DTC is stored when the parking assist ECU cannot receive and recognize certain signals via the CAN communication system.

DTC Code DTC Detection Condition Trouble Area
U0101 A problem with the shift position information signal from the power management control ECU

  • CAN communication system

  • Parking assist monitor system

Tech Tips

When 2 or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC (U0101)


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC U0101 is output (w/o Parking Assist Monitor System and/or Side Monitor System) A
      DTC U0101 is output (w/ Parking Assist Monitor System and/or Side Monitor System) B
      No DTC is output C

      Tech Tips

      *: CAN communication system procedure:



    B

    CHECK FOR DTC (C168D) Click here

    C

    USE SIMULATION METHOD TO CHECK Click here

    A

    GO TO CAN COMMUNICATION SYSTEM*

  2. CHECK FOR DTC (C168D)


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      No DTC is output A

      DTC C168D is output

      (w/ Parking Assist Monitor System and Side Monitor System)

      		 B

      DTC C168D is output

      (w/ Rear View Monitor System and Side Monitor System)

      		 C

      Tech Tips


      • If DTC U0101 is still output after performing the procedure to troubleshoot DTC C168D, replace the parking assist ECU.

      • *: CAN communication system procedure:



    B

    GO TO PARKING ASSIST MONITOR SYSTEM Click here

    C

    GO TO REAR VIEW MONITOR SYSTEM (W/ SIDE MONITOR SYSTEM) Click here

    A

    GO TO CAN COMMUNICATION SYSTEM*