CAN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Diagnostic Trouble Code Chart
DTC No.	Detection Item	Trouble Area	Note	Link
U0104	Lost Communication with Driving Support ECU	Driving support ECU assembly branch line or connector Power source circuit of driving support ECU assembly Driving support ECU assembly ground circuit Driving support ECU assembly	Tech Tips Network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.	Click here
U0199	Lost Communication with "Door Control Module A"	Outer mirror control ECU assembly branch line or connector Power source circuit of outer mirror control ECU assembly Outer mirror control ECU assembly ground circuit Outer mirror control ECU assembly	Tech Tips Main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.	Click here
U0200	Lost Communication with "Door Control Module B"	Outer mirror control ECU assembly branch line or connector Power source circuit of outer mirror control ECU assembly Outer mirror control ECU assembly ground circuit Outer mirror control ECU assembly	Tech Tips Main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.	Click here
U0208	Lost Communication with "Seat Control Module A"	Position control ECU and switch assembly branch line or connector Power source circuit of position control ECU and switch assembly Position control ECU and switch assembly ground circuit Position control ECU and switch assembly	Tech Tips Main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.	Click here
U0230	Lost Communication with Rear Gate Module	Multiplex network door ECU main line or connector Power source circuit of multiplex network door ECU Multiplex network door ECU ground circuit Multiplex network door ECU	Tech Tips Main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.	Click here
U0233	Lost Communication with Blind Spot Monitor Master Module	Blind spot monitor sensor LH branch line or connector Power source circuit of blind spot monitor sensor LH Blind spot monitor sensor LH ground circuit Blind spot monitor sensor LH	Tech Tips Network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.	Click here
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	Open or short in sub bus 13 main line or connector Millimeter wave radar sensor assembly Power source circuit of millimeter wave radar sensor assembly Millimeter wave radar sensor assembly ground circuit	Tech Tips The driving support ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 13.	Click here
U023A	Lost Communication with Front Camera Module	Lane departure warning camera branch line or connector Power source circuit of lane departure warning camera Lane departure warning camera ground circuit Lane departure warning camera	Tech Tips Network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.	Click here
U0265	Lost Communication with Parking Assist Monitor Module	Television camera assembly branch line or connector Power source circuit of television camera assembly Television camera assembly ground circuit Television camera assembly	Tech Tips Network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.	Click here
U1002	Lost Communication with Gateway Module (Network Gateway ECU)	Open or short in sub bus 2 main line or connector Open or short in sub bus 2 branch line or connector Network gateway ECU Driving support ECU assembly (w/ Pre-crash safety system) Lane departure warning camera (w/ Lane departure alert system) Television camera assembly (w/ Parking assist monitor system) Blind spot monitor sensor LH (w/ Blind spot monitor system) Open or short in No. 1 CAN junction connector Open or short in No. 2 CAN junction connector Open or short in CAN junction terminal	Tech Tips The network gateway ECU stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 2.	Click here
U1002	Lost Communication with Gateway Module (Main Body ECU)	Open or short in sub bus 1 main line or connector Open or short in sub bus 1 branch line or connector Main body ECU (multiplex network body ECU) Outer mirror control ECU assembly (for driver side) (w/ Seat position memory system) Outer mirror control ECU assembly (for front passenger side) (w/ Seat position memory system) Position control ECU and switch assembly (w/ Seat position memory system) Multiplex network door ECU (w/ Power back door system) Open or short in No. 5 CAN junction connector Open or short in No. 6 CAN junction connector	Tech Tips The main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.	Click here
U1002	Lost Communication with Gateway Module (Sensor Bus)	Open or short in sub bus 13 main line or connector Driving support ECU assembly Power source circuit of driving support ECU assembly Driving support ECU assembly ground circuit Millimeter wave radar sensor assembly Power source circuit of millimeter wave radar sensor assembly Millimeter wave radar sensor assembly ground circuit	Tech Tips The driving support ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 13.	Click here