ENTRY AND START SYSTEM(for Start Function), Diagnostic DTC:U0100, U0103, U0129, U0140, U0142, U0293

DTC Code DTC Name
U0100 Lost Communication with ECM
U0103 Lost Communication with Gear Shift Module "A"
U0129 Lost Communication with Skid Control ECU
U0140 Lost Communication with Main Body ECU
U0142 Lost Communication with Main Body ECU
U0293 Lost Communication with HV ECU

DESCRIPTION

These DTCs are stored when there is a CAN communication error between the power management control ECU and the certification ECU (smart key ECU assembly).

Tech Tips

When the cable is disconnected and reconnected to the negative (-) auxiliary battery terminal, the power source mode returns to the state it was in before the cable was disconnected.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
U0100 Lost Communication with ECM CAN communication error between the certification ECU (smart key ECU assembly) and ECM (1-trip detection*) ECM

DTC Output Confirmation Operation:


  • Turn the power switch on (IG) and wait 10 seconds or more.
U0103 Lost Communication with Gear Shift Module "A" CAN communication error between the certification ECU (smart key ECU assembly) and transmission control ECU assembly Transmission Control ECU Assembly

DTC Output Confirmation Operation:


  • Always
U0129 Lost Communication with Skid Control ECU CAN communication error between the certification ECU (smart key ECU assembly) and skid control ECU (brake booster with master cylinder assembly) Skid Control ECU (Brake Booster with Master Cylinder Assembly)

DTC Output Confirmation Operation:


  • Always
U0140 Lost Communication with Main Body ECU CAN communication error between the power management control ECU and main body ECU (1-trip detection*) Main body ECU (multiplex network body ECU)

DTC Output Confirmation Operation:


  • Always
U0142 Lost Communication with Main Body ECU CAN communication error between the certification ECU (smart key ECU assembly) and main body ECU (1-trip detection*) Main body ECU (multiplex network body ECU)

DTC Output Confirmation Operation:


  • Always
U0293 Lost Communication with HV ECU CAN communication error between the certification ECU (smart key ECU assembly) and power management control ECU (1-trip detection*) Power management control ECU

DTC Output Confirmation Operation:


  • Turn the power switch on (IG) and wait 10 seconds or more.

Vehicle Condition and Fail-safe Function when Malfunction Detected
DTC No. Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected
U0100 There is no effect on vehicle behavior. -
U0103 Engine does not start -
U0129 Engine does not start -
U0140 The warning (meter buzzer) does not sound and the meter does not indicate a warning. -
U0142

  • Doors cannot be locked or unlocked. The warning (wireless buzzer) does not sound.

  • The warning (meter buzzer) does not sound and the meter does not indicate a warning.

 -
U0293 The warning (meter buzzer) does not sound and the meter does not indicate a warning. -

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the power switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

  • After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

Tech Tips

Related Data List and Active Test Items
DTC No. Data List Item Active Test Item

U0100

U0103

U0129

U0140

U0142

U0293

 - -

PROCEDURE


  1. CHECK FOR DTC


    1. Note any DTCs that are output.

      Result
      Proceed to
      NEXT

    NEXT

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