ENTRY AND START SYSTEM(for Start Function), Diagnostic DTC:U0100, U0103, U0129, U0140, U0142, U0155, U0164, U0293, U1117, U1135, U113A

DTC Code	DTC Name
U0100	Lost Communication with ECM / PCM
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
U0155	Lost Communication with Combination Meter
U0164	Lost Communication with A/C ECU
U0293	Lost Communication with Hybrid Vehicle Control System
U1117	Lost Communication with Accessory Gateway
U1135	Lost Communication with Plug-in Control Module
U113A	Lost Communication with Solar Charging Control Module

DESCRIPTION

These DTCs are stored when there is a CAN communication malfunction between the ECM, certification ECU (smart key ECU assembly), hybrid vehicle control ECU, main body ECU (multiplex network body ECU), combination meter assembly, air conditioning amplifier assembly, electric vehicle charger assembly or solar energy control unit, and data from the option connector (bus buffer ECU) cannot be received.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
U0100	Lost Communication with ECM / PCM	CAN communication error between certification ECU (smart key ECU assembly) and ECM (1-trip detection logic*)	ECM	DTC Output Confirmation Operation: Turn the power switch on (IG) and wait at least 10 seconds.
U0103	Lost Communication with Gear Shift Module "A"	CAN communication error between the certification ECU (smart key ECU assembly) and hybrid vehicle control ECU (1-trip detection logic*)	Hybrid vehicle control ECU	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) (1-trip detection logic*)	Skid Control ECU (brake Booster with Master Cylinder Assembly)	DTC Output Confirmation Operation: Always
U0140	Lost Communication with Main Body ECU	CAN communication malfunction 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
U0142	Lost Communication with Main Body ECU	CAN communication malfunction 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 malfunction 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 at least 10 seconds.
U0164	Lost Communication with A/C ECU	CAN communication malfunction between certification ECU (smart key ECU assembly) and air conditioning amplifier assembly (1-trip detection logic*)	Air conditioning amplifier assembly	DTC Output Confirmation Operation: Turn the power switch on (IG) and wait at least 10 seconds.
U0293	Lost Communication with Hybrid Vehicle Control System	CAN communication error between certification ECU (smart key ECU assembly) and hybrid vehicle control ECU (1-trip detection logic*)	Hybrid vehicle control ECU	DTC Output Confirmation Operation: Turn the power switch on (IG) and wait at least 10 seconds.
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 at least 10 seconds.
U1135	Lost Communication with Plug-in Control Module	CAN communication malfunction between certification ECU (smart key ECU assembly) and electric vehicle charger assembly (1-trip detection logic*)	Electric vehicle charger assembly	DTC Output Confirmation Operation: Turn the power switch on (IG) and wait at least 10 seconds.
U113A	Lost Communication with Solar Charging Control Module	CAN communication malfunction between certification ECU (smart key ECU assembly) and solar energy control unit (1-trip detection logic*)	Solar energy control unit	DTC Output Confirmation Operation: Turn the power switch on (IG) and wait at least 10 seconds.

*: Only detected while a malfunction is present.

Vehicle Condition and Fail-safe Function when Malfunction Detected
DTC Code	Vehicle Condition when Malfunction Detected	Fail-safe Function when Malfunction Detected
U0100	There is no effect on vehicle behavior.	-
U0103	Hybrid control system does not start.	-
U0129	Hybrid control system does not start.	-
U0140 U0142	Doors cannot be locked or unlocked. The warning (wireless buzzer) does not sound.	-
U0155	The warning (meter buzzer) does not sound and no warning messages displayed on the multi-information display. There is no effect on vehicle behavior.	-
U0164	Remote air conditioning system does not operate.	-
U0293	The warning (meter buzzer) does not sound and no warning messages displayed on the multi-information display.	-
U1117	The hybrid control system cannot be started using the wireless remote control function.	-
U1135	Plug-in charge control system does not operate.	-
U113A	Solar charging system does not operate.	-

Related Data List and Active Test Items
DTC No.	Data List and Active Test
U0100 U0103 U0129 U0140 U0142 U0155 U0164 U0293 U1117 U1135 U113A	-

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

CHECK FOR DTC

Check for DTCs and note any DTCs that are output.

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Result

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