ENTRY AND START SYSTEM(for Start Function), Diagnostic DTC:U0140, U0155, U0293, U1117

DTC Code DTC Name
U0140 Lost Communication with Main Body ECU
U0155 Lost Communication with Combination Meter
U0293 Lost Communication with Hybrid Vehicle Control System
U1117 Lost Communication with Accessory Gateway

DESCRIPTION

These DTCs are stored when there is a CAN communication error between the certification ECU (smart key ECU assembly), main body ECU (multiplex network body ECU) or combination meter assembly, and data from the option connector (bus buffer ECU) cannot be received.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
U0140 Lost Communication with Main Body ECU CAN communication error between certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) (1-trip detection logic*) Main body ECU (multiplex network body ECU)

    DTC Output Confirmation Operation:

  • Always
U0155 Lost Communication with Combination Meter CAN communication error between certification ECU (smart key ECU assembly) and combination meter assembly (1-trip detection logic*) Combination meter assembly

    DTC Output Confirmation Operation:

  • Turn the power switch on (IG) and wait 10 seconds or more.
U0293 Lost Communication with Hybrid Vehicle Control System CAN communication error between certification ECU (smart key ECU assembly) and hybrid vehicle control ECU assembly (1-trip detection logic*) Hybrid vehicle control ECU assembly

    DTC Output Confirmation Operation:

  • Turn the power switch on (IG) and wait 10 seconds or more.
U1117 Lost Communication with Accessory Gateway Data from the option connector (bus buffer ECU) cannot be received.

  • Connector and branch wire of sub bus 2 of option connector (bus buffer ECU)

  • Internal malfunction of option connector (bus buffer 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
U0140 The warning (meter buzzer) does not sound and the meter does not indicate a warning. -
U0155

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

  • There is no effect on vehicle behavior.

 -
U0293 The warning (meter buzzer) does not sound and the meter does not indicate a warning. -
U1117 The hybrid control system cannot be started using the wireless remote control function. -
Related Data List and Active Test Items
DTC No. Data List and Active Test

U0140

U0155

U0293

U1117

 -

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

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.

PROCEDURE


  1. CHECK FOR DTC


    1. Note any DTCs that are output.

      Click here

      Result
      Proceed to
      NEXT

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