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

Body Control Module

DTC	Description	DTC type
B1002	BCM (body control module) internal error (EEPROM error)	Internal error
B1003	BCM (body control module) PROGRAM error	Internal error
B1028	Rear wiper motor(park) signal error	Signal error
B1032	CDS (collision detection signal) signal error	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 (body control module) 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)	Signal error
B1085	Head light low light source abnormality	Signal error
B1275	Headlight OFF position circuit malfunction	Signal error
B1276	Headlight switch parking position circuit malfunction	Signal error
B1277	Headlight AUTO position circuit malfunction	Signal error
B1278	Headlight 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
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U128D	BCM (body control module) lost communication with gauge control module	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
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 control unit	Loss of communication
U0132	Gauge control module lost communication with adaptive damper control unit	Loss of communication
U0151	Gauge control module lost communication with SRS unit	Loss of communication
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Gauge control module lost communication with MICU (body control module) (MICU frame)	Loss of communication
U1288	Gauge control module lost communication with PARKSR	Loss of communication
U129C	Gauge control module lost communication with multipurpose camera unit	Loss of communication
U3000-49	ECU internal circuit malfunction	Internal error
U3000-51	Reprogramming error	Internal error

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	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Door multiplex control unit lost communication with MICU (body control module)	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

Automatic Lighting Control Unit

DTC	Description	DTC type
B1575	Auto light sensor error	Internal error
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Auto light control unit lost communication with MICU (body control module)	Loss of communication
U128D	Auto light control unit lost communication with gauge control module	Loss of communication

Automatic Lighting/Rain Sensor

DTC	Description	DTC type
B2352	Rain light sensor unit internal error (EEPROM error)	Internal error
B2375	Rain sensor malfunction	Internal error
B2376	Light sensing malfunction	Internal error
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Rain light sensor lost communication with MICU (body control module)	Loss of communication
U128D	Rain light sensor unit lost communication with gauge control module	Loss of communication

Immobilizer-Keyless Control Unit

DTC	Description	DTC type
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Lost communication with MICU (body control module) (MICU frame)	Loss of communication
U128D	Lost communication with METER	Loss of communication

Keyless Access Control Unit (Body Control Module)

DTC	Description	DTC type
B1601	Keyless access control unit (body control module) internal (CPU) error	Internal error
B1602	Keyless access control unit (body control module) internal (EEPROM) error	Internal error
B1632	MTR CONT signal error	Signal error
B1640	RF unit not connected	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
B1663	Rear interior LF antenna circuit short	Signal error
B1664	Rear interior LF antenna circuit open	Signal error
B1667	2/4-door: Rear shelf LF antenna circuit short	Signal error
B1667	5-door: Rear shelf LF antenna (middle interior LF antenna) circuit short	Signal error
B1668	2/4-door: Rear shelf LF antenna circuit open	Signal error
B1668	5-door: Rear shelf LF antenna (middle interior LF antenna) circuit open	Signal error
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Keyless access control unit (body control module) lost communication with MICU (body control module)	Loss of communication
U128D	Keyless access control unit (body control module) lost communication with gauge control module	Loss of communication

Backup Control Unit (Body Control Module)

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 (body control module) lost communication with gauge control module	Loss of communication

Power Control Unit (Body Control Module)

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 (body control module) IG1A circuit error	Internal error
B12D1	Power control unit (body control module) IG1B circuit error	Internal error
B12D2	Power control unit (body control module) IG2 circuit error	Internal error
B12D3	Power control unit (body control module) 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 (body control module) lost communication with electric steering lock	Loss of communication
U0073	F-CAN communication bus line error	Loss of communication
U0100	Power control unit (body control module) lost communication with PCM	Loss of communication
U0122	Power control unit (body control module) lost communication with VSA modulator-control unit (VSA message)	Loss of communication
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Power control unit (body control module) lost communication with MICU (body control module)	Loss of communication
U128D	Power control unit (body control module) lost communication with gauge 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	Front passenger's heater thermistor circuit open	Signal error
B1C58	Front 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	Front passenger's heater current abnormal high	Signal error
B1C63	Front passenger's heater current abnormal low	Signal error
B1C68	Driver's heater not heating	Signal error
B1C69	Front passenger's heater not heating	Signal error
B1C70	Driver's main heater switch failure	Signal error
B1C71	Front passenger's main heater switch failure	Signal error
U1064	Seat heater control unit lost communication with climate control unit	Loss of communication
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication

Parking and Back-Up Sensor Control Unit

DTC	Description	DTC type
B2601	Parking sensor CPU error	Internal error
B2602	Parking sensor EEPROM error	Internal error
B2610	Front 1st sensor failure	Signal error
B2611	Front 2nd sensor failure	Signal error
B2612	Front 3rd sensor failure	Signal error
B2613	Front 4th sensor failure	Signal error
B2614	Rear 1st sensor failure	Signal error
B2615	Rear 2nd sensor failure	Signal error
B2616	Rear 3rd sensor failure	Signal error
B2617	Rear 4th sensor failure	Signal error
B2618	Front 1st sensor data failure	Signal error
B2619	Front 2nd sensor data failure	Signal error
B261A	Front 3rd sensor data failure	Signal error
B261B	Front 4th sensor data failure	Signal error
B261C	Rear 1st sensor data failure	Signal error
B261D	Rear 2nd sensor data failure	Signal error
B261E	Rear 3rd sensor data failure	Signal error
B261F	Rear 4th sensor data failure	Signal error
B2646	Front sensor power failure	Signal error
B2647	Rear sensor power failure	Signal error
B2648	Front sensor signal short to ground	Signal error
B2649	Rear sensor signal short to ground	Signal error
B264A	Indicator circuit short to power	Signal error
B264B	Indicator circuit short to ground	Signal error
B264D	Front sensor combination error	Signal error
U0155	Lost communication with gauge control module	Loss of communication
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Lost communication with MICU (body control module)	Loss of communication

Wireless Charger

DTC	Description	DTC type
B22A0	Wireless charger unit failure	Internal error
B22A1	Wireless charger unit ACC input circuit failure	Signal error
U1280	B-CAN communication bus line error (BUS-OFF)	Loss of communication
U1281	Wireless charger unit lost communication with MICU (body control module)	Loss of communication
U1286	Wireless charger unit lost communication with keyless access control unit (body control module)	Loss of communication
U128D	Wireless charger unit lost communication with gauge control module	Loss of communication
U128E	Wireless charger unit lost communication with audio-navigation unit	Loss of communication