Network Communication DTC Troubleshooting Index

NOTE: Record all DTCs, and sort them by DTC type using the DTC troubleshooting index, then troubleshoot the DTC(s) in this order:

	Internal error DTCs
	Loss of communication DTCs
	Signal error DTCs

Automatic Lighting Control Unit

DTC	Description	DTC type
B1575	Auto light sensor error	Internal error
U1280	BUS OFF state is detected by CAN controller	Loss of communication
U1281	Auto light control unit lost communication with MICU	Loss of communication
U128D	Auto light control unit lost communication with gauge control module	Loss of communication

Body Control Module

DTC	Description	DTC type
B1002	MICU internal error (EEPROM error)	Internal error
B1003	MICU Update Error	Internal error
B1028	Rear wiper motor(Park) signal error	Signal error
B1032	MICU lost communication with SRS unit (CDS message)	Signal error
B1036	IG1 Power Supply Circuit Malfunction	Signal error
B1038	IMMOBILIZER F-CAN Authentication ID Not Received	Signal error
B1039	IMMOBILIZER F-CAN Authentication ID Unmatch	Signal error
B1040	BCM lost communication with Front wiper	Loss of communication
B1041	Front Wiper motor malfunction	Signal error
B1042	Front Wiper security line error	Signal error
B1043	Front Wiper unit internal error (EEPROM error)	Internal error
B1077	Windshield wiper motor (Park) signal error	Signal error
B1275	Head light OFF position Circuit Malfunction	Signal error
B1276	Head light switch parking (small) position Circuit Malfunction	Signal error
B1277	Head light AUTO position Circuit Malfunction	Signal error
B1278	Head light ON position Circuit Malfunction	Signal error
B1279	Dimmer switch Circuit Malfunction	Signal error
B1280	Turn signal switch Circuit Malfunction	Signal error
B1281	Front wiper MIST position Circuit Malfunction	Signal error
B1282	Front wiper INT(AUTO) position Circuit Malfunction	Signal error
B1283	Front wiper LOW position Circuit Malfunction	Signal error
B1284	Front wiper HIGH position Circuit Malfunction	Signal error
B2352	Rain Light Sensor Unit Internal error (EEPROM error)	Signal error
B2375	Rain Sensing malfunction	Signal error
B2376	Light sensing malfunction	Signal error
U0073	F-CAN communication bus line error	Loss of communication
U0100	BCM lost communication with ECM/PCM	Loss of communication
U0122	BCM lost communication with VSA/ABS	Loss of communication
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U128D	MICU lost communication with gauge control module	Loss of communication
U1291	MICU lost communication with relay control module	Loss of communication

Front Seat Heater Control Unit

DTC	Description	DTC type
B1C55	Driver's heater thermistor circuit open	Signal error
B1C56	Driver's heater thermistor circuit short	Signal error
B1C57	Passenger's heater thermistor circuit open	Signal error
B1C58	Passenger's heater thermistor circuit short	Signal error
B1C60	Driver's heater current abnormal high	Signal error
B1C61	Driver's heater current abnormal low	Signal error
B1C62	Passenger's heater current abnormal high	Signal error
B1C63	Passenger's heater current abnormal low	Signal error
B1C68	Driver's heater not heating	Signal error
B1C69	Passenger's heater not heating	Signal error
B1C70	Driver's main heater switch failure	Signal error
B1C71	Passenger's main heater switch failure	Signal error
U1064	Seat heater control unit lost communication with climate control unit	Loss of communication
U1280	Seat heater control unit communication bus line error (BUS-OFF)	Loss of communication

Gauge Control Module

DTC	Description	DTC type
B1175	Fuel level sensor (Fuel gauge sending unit) circuit malfunction	Signal error
B1176	Fuel level sensor (Fuel gauge sending unit) circuit short	Signal error
B1195	Gauge control module lost communication with Audio Remote Switch(LIN bus connected)	Loss of communication
U0029	F-CAN communication line error	Loss of communication
U0100	Gauge control module lost communication with ENG/AT	Loss of communication
U0101	Gauge control module lost communication with AT	Loss of communication
U0104	Gauge Control Module Lost Communication With Driving Support System Control Unit	Loss of communication
U0114	Gauge control module lost communication with All Wheel Drive Control Module	Loss of communication
U0122	Gauge control module lost communication with VSA modulator-control unit	Loss of communication
U0128	Gauge control module lost communication with EPB	Loss of communication
U0131	Gauge control module lost communication with EPS Unit	Loss of communication
U0151	Gauge control module lost communication with SRS unit	Loss of communication
U1280	Communication bus line error (BUS-OFF)	Loss of communication
U1281	Gauge control module lost communication with MICU (MICU frame)	Loss of communication
U128F	Gauge control module lost communication with BSI unit	Loss of communication
U129C	Gauge control module lost communication with multi purpose camera unit	Loss of communication
U3000-49	ECU internal circuit malfunction	Internal error
U3000-51	Reprogramming error	Internal error

Immobilizer-Keyless Control Unit

DTC	Description	DTC type
B1901	Immobilizer Unit Internal error (CPU error)	Internal error
B1902	Immobilizer Unit Internal error (EEPROM error)	Internal error
U1280	Communication bus line error (BUS-OFF)	Loss of communication
U0155	Immobilizer-keyless control unit lost communication with gauge control module	Loss of communication
U0199	Immobilizer-keyless control unit lost communication with door multiplex control unit	Loss of communication
U1281	Lost communication with MICU (MICU frame)	Loss of communication
U128D	Lost communication with METER	Loss of communication

Keyless Access Backup Control Unit

DTC	Description	DTC type
B1926	Backup Control Antenna Open or Short	Internal error
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U128D	Backup Control Unit Lost Communication with Gauge Control Module	Loss of communication

Keyless Access Control Unit

DTC	Description	DTC type
B1601	Keyless access control unit internal (CPU) error	Internal error
B1602	Keyless access control unit internal (EEPROM) error	Internal error
B1632	MTR CONT Signal Error	Signal error
B1640	RF1 antenna not connected or malfunction	Signal error
B1645	Driver's Door LF Antenna Circuit Short	Signal error
B1646	Driver's Door LF Antenna Circuit Open	Signal error
B1647	Passenger's Door LF Antenna Circuit Short	Signal error
B1648	Passenger's Door LF Antenna Circuit Open	Signal error
B1657	Rear Bumper LF Antenna Circuit Short	Signal error
B1658	Rear Bumper LF Antenna Circuit Open	Signal error
B1659	Front Interior LF Antenna Circuit Short	Signal error
B1660	Front Interior LF Antenna Circuit Open	Signal error
B1661	Middle Interior Antenna Circuit Shorted	Signal error
B1662	Middle Interior Antenna Circuit Opened	Signal error
B1663	Rear Interior LF Antenna Circuit Short	Signal error
B1664	Rear Interior LF Antenna Circuit Open	Signal error
B1667	Rear Shelf (Middle Interior) LF Antenna Circuit Short	Signal error
B1668	Rear Shelf (Middle Interior) LF Antenna Circuit Open	Signal error
U1280	Keyless access control unit communication bus line error (BUS-OFF)	Loss of communication
U1281	Keyless Access Control Unit Lost Communication with MICU	Loss of communication
U128D	Keyless Access Control Unit Lost Communication with Gauge Control Module	Loss of communication

Keyless Access Power Control Unit

DTC	Description	DTC type
B12C5	Engine Start/Stop Switch Failure	Signal error
B12C6	Electric Steering Lock Switch C/D Monitor Circuit Failure	Signal error
B12C7	Electric Steering Lock Motor Circuit Failure	Signal error
B12D0	Power Control Unit IG1A Circuit Error	Internal error
B12D1	Power Control Unit IG1B Circuit Error	Internal error
B12D2	Power Control Unit IG2 Circuit Error	Internal error
B12D3	Power Control Unit IG Latch Circuit Error	Internal error
B12E0	Electric Steering Lock Switch Internal Error	Internal error
B12E1	Electric Steering Lock Motor Internal Error	Internal error
B12E2	Electric Steering Lock Low Level Failure of MTRCUT1	Signal error
B12E3	Electric Steering Lock High Level Failure of MTRCUT1	Signal error
B12E4	Electric Steering Lock High Level Failure of MTRCUT2	Signal error
B12E5	Incorrect assembly of control unit for electric steering lock equipped vehicle	Signal error
B12F0	Power Control Unit Lost Communication with Electric Steering Lock	Loss of communication
U0073	F-CAN Communication Bus Line Error	Loss of communication
U0100	Power Control Unit Lost Communication with PCM	Loss of communication
U0122	Power Control Unit Lost Communication with ABS/VSA Modulator-Control Unit	Loss of communication
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Power Control Unit Lost Communication with MICU	Loss of communication
U128D	Power Control Unit Lost Communication with Gauge Control Module	Loss of communication

Multiplex Control Unit, Door (Power Window Master Switch)

DTC	Description	DTC type
B1125	Driver's power window motor A pulse malfunction	Signal error
B1126	Driver's power window motor B pulse malfunction	Signal error
B1127	Driver's door lock key cylinder switch malfunction	Signal error
B1128	Driver's door lock switch malfunction	Signal error
B1129	Driver's door lock knob switch malfunction	Signal error
B1130	Front passenger's power window motor A pulse malfunction	Signal error
B1131	Front passenger's power window motor B pulse malfunction	Signal error
B1140	Driver's power window position detect circuit malfunction	Signal error
B1142	Door Multiplex Control Unit lost communication with front passenger's power window switch (UART line open)	Loss of communication
B1145	Front passenger's power window position detect circuit malfunction	Signal error
U1280	Communication bus line error (BUS-OFF)	Loss of communication
U1281	Door multiplex control unit lost communication with MICU	Loss of communication
U128D	Door multiplex control unit lost communication with gauge control module	Loss of communication
U1299	Door multiplex control unit lost communication with climate control unit	Loss of communication

Power Seat Control Unit

DTC	Description	DTC type
B1802	Power seat control unit internal (EEPROM) error	Internal error
B1825	Slide pulse error(no change in pulse for 1 second)	Signal error
B1826	Front height pulse error(no change in pulse for 1 second)	Signal error
B1827	Rear height pulse error(no change in pulse for 1 second)	Signal error
B1828	Recline pulse error(no change in pulse for 1 second)	Signal error
B1829	AT-P signal and VSP signal mismatch	Signal error
B1836	Power Seat Position Sensor circuit short	Signal error
B1837	Memory position calling timeout	Signal error
B1844	Power Seat Slide switch circuit malfunction	Signal error
B1845	Power Seat Recline switch circuit malfunction	Signal error
B1846	Power Seat Front Up-Down switch circuit malfunction	Signal error
B1847	Power Seat Rear Up-Down switch circuit malfunction	Signal error
U0199	Power seat control unit lost communication with door multiplex control unit (DRLockSW frame)	Loss of communication
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Power seat control unit lost communication with MICU (MICU frame)	Loss of communication
U128D	Lost Communication With Gauge Control Module (VSP/NE frame)	Loss of communication

Power Tailgate Control Unit

DTC	Description	DTC type
B1352	Power Tailgate Control Unit Internal error (EEPROM error)	Internal error
B1375	Driver's side PTG switch circuit malfunction	Signal error
B1376	Tailgate Outer Handle switch circuit malfunction	Signal error
B1377	Power Tailgate Inner switch circuit malfunction	Signal error
B1378	Power Tailgate Right Touch/Pinch sensor circuit malfunction	Signal error
B1379	Power Tailgate Left Touch/Pinch sensor circuit malfunction	Signal error
B1380	Tailgate Closer Unit Neutral switch circuit malfunction	Signal error
B1382	Tailgate Closer Unit Full Latch switch circuit malfunction	Signal error
B1383	Tailgate Closer Unit Ratchet switch circuit malfunction	Signal error
B1384	Tailgate Closer Unit Half Latch switch circuit malfunction	Signal error
B1385	Power Tailgate temperature sensor malfunction	Signal error
B1386	Power Tailgate sensor Pulse A circuit malfunction	Signal error
B1387	Power Tailgate sensor Pulse B circuit malfunction	Signal error
B1388	Power Tailgate Drive Motor circuit malfunction	Signal error
B1390	Power Tailgate Closer Motor function error	Signal error
U0199	Lost communication with P/W (DRLOCKSW,KLDRLOCK frame)	Loss of communication
U1280	Communication Bus line Error(a bus OFF state is detected by Power Tail Gate ECU)	Loss of communication
U1281	Lost communication with MICU (MICU frame)	Loss of communication
U128D	Power Tailgate Control Unit lost communication with GAUGE Control Module	Loss of communication

Relay Control Module

DTC	Description	DTC type
B1051	Relay control module internal (CPU) error	Internal error
B1052	Relay control module internal (EEPROM) error	Internal error
B1075	Headlight switch malfunction	Signal error
B1080	Power supply circuit (IG1 line) input error for Relay Control Module and MICU	Signal error
B1085	Head Light Low Beam Power Source Abnormality	Signal error
B108A	Right Side Parking Light Circuit Shorted	Signal error
B108B	Left Side Parking Light Circuit Shorted	Signal error
B108C	Right Side Head Light Low Beam Circuit Shorted	Signal error
B108D	Left Side Head Light Low Beam Circuit Shorted	Signal error
B108E	Right Side Head Light High Beam Circuit Shorted	Signal error
B108F	Left Side Head Light High Beam Circuit Shorted	Signal error
B1090	Illumination Circuit Shorted	Signal error
B1091	DRL Circuit Shorted	Signal error
B1092	Interior Light Cut Circuit Shorted	Signal error
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Relay control module lost communication with MICU(MICU frame)	Loss of communication
U128D	Relay control module lost communication with gauge control module(VSP/NE frame)	Loss of communication