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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
  • Receiving malfunction information
AUTOMATIC LIGHTING CONTROL UNIT-SENSOR

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
ADAPTIVE FRONT LIGHTING CONTROL UNIT

DTC Description DTC type
B2101 +B SW failure Internal error
U1280 B-CAN communication bus line error (BUS-OFF) Loss of communication
U1281 Lost communication with MICU/BCM (body control module) Loss of communication
U128D Lost communication with gauge control module Loss of communication
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
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 Headlight low light source abnormality Signal error
B1275 Headlight OFF position circuit malfunction Signal error
B1276 Headlight switch parking (small) 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
B2352 Rain light sensor unit internal error (EEPROM error) Internal error
B2375 Rain sensing malfunction Signal error
B2376 Light sensing malfunction Signal error
U0073 F-CAN Communication bus line error (BUS-OFF) Loss of communication
U0100 BCM (body control module) lost communication with ECM/PCM Loss of communication
U0122 BCM (body control module) lost communication with VSA/ABS Loss of communication
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
B1192 Gauge control module lost communication with battery sensor ECU (LIN bus connected) Loss of communication
B1193 Gauge control module lost communication with steering switch (LIN bus connected) Loss of communication
B1194 Gauge control module lost communication with HUD unit (UART 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
U0127 Gauge control module lost communication with TPMS control unit (body control module) 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
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
U0230 Gauge control module lost communication with PTG 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
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
KEYLESS ACCESS 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
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
B1627 RF1 unit disconnected Signal 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
B1649 Driver side rear passenger door LF antenna circuit short Signal error
B1650 Driver side rear passenger door LF antenna circuit open Signal error
B1651 Passenger side rear passenger door LF antenna circuit short Signal error
B1652 Passenger side rear passenger 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
B1667 Rear shelf LF antenna circuit short Signal error
B1668 Rear shelf 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
KEYLESS ACCESS 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
B12F3 Power Control Unit (body control module) Lost Communication with Transmission Control Unit 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 ABS/VSA modulator-control unit 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
MASTER LIGHTING CONTROL UNIT

DTC Description DTC type
B214A Master lighting control unit internal failure Internal error
B214B Master lighting control unit internal failure Internal error
B214C Master lighting control unit lost communication with all ambient light on LIN Loss of communication
B214D Ambient light failure Signal error
B214E Master lighting control unit lost communication with ambient light on LIN Loss of communication
U1280 Master lighting control unit B-CAN communication error (BUS-OFF) Loss of communication
U1281 Master lighting control unit lost communication with MICU/BCM Loss of communication
U128D Master lighting 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
B1132 Left rear power window motor A-phase pulse signal input error Signal error
B1133 Left rear power window motor B-phase pulse signal input error Signal error
B1134 Right rear power window motor A-phase pulse signal input error Signal error
B1135 Right rear power window motor B-phase pulse signal input error Signal error
B1140 Driver's power window position detect circuit malfunction Signal error
B1142 Power window master switch lost communication with front passenger's power window switch (UART communication error) Loss of communication
B1145 Front passenger's window position detect circuit malfunction Signal error
B1147 Left rear window position data error Signal error
B1149 Right rear window position data error Signal error
U1280 B-CAN communication bus line error (BUS-OFF) Loss of communication
U1281 Power window master switch lost communication with MICU (body control module) Loss of communication
U128D Power window master switch lost communication with gauge control module Loss of communication
U1299 Power window master switch lost communication with climate control unit Loss of communication
PARKING AND BACK-UP SENSOR CONTROL UNIT ('19-21)

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
PARKING AND BACK-UP SENSOR CONTROL UNIT ('22-23)

DTC Description DTC type
B2600-97 Dust Or Dirt On The Sensor Signal error
B2625-96 Front Left Corner Sensor Failure Signal error
B2626-96 Front Left Center Sensor Failure Signal error
B2627-96 Front Right Center Sensor Failure Signal error
B2628-96 Front Right Corner Sensor Failure Signal error
B2629-96 Rear Left Corner Sensor Failure Signal error
B2630-96 Rear Left Center Sensor Failure Signal error
B2631-96 Rear Right Center Sensor Failure Signal error
B2632-96 Rear Right Corner Sensor Failure Signal error
B2635-11 Short to Ground in The Sensor Main Switch Indicator Line Signal error
B2635-12 Short to Power in The Sensor Main Switch Indicator Line Signal error
B2637-11 Short to Ground in The Sensor Power Supply Line Signal error
B2637-12 Short to Power in The Sensor Power Supply Line Signal error
B2638-87 Lost Communication With The Front Left Corner Sensor Signal error
B2639-87 Lost Communication With The Front Left Center Sensor Signal error
B2640-87 Lost Communication With The Front Right Center Sensor Signal error
B2641-87 Lost Communication With The Front Right Corner Sensor Signal error
B2642-87 Lost Communication With The Rear Left Corner Sensor Signal error
B2643-87 Lost Communication With The Rear Left Center Sensor Signal error
B2644-87 Lost Communication With The Rear Right Center Sensor Signal error
B2645-87 Lost Communication With The Rear Right Corner Sensor Signal error
C0023-F0 Brake Light Drive Relay Circuit Malfunction Signal error
C0051-96 Steering Angle Sensor Failure Signal error
U0029-00 F-CAN Malfunction (BUS-OFF) Loss of communication
U0100-00 Lost Communication With The PCM/TCM Loss of communication
U0101-00 Lost Communication With The PCM/TCM Loss of communication
U0122-00 Lost Communication With The VSA Modulator-Control Unit Loss of communication
U0131-00 Lost Communication With The EPS Control Unit Loss of communication
U0155-00 Lost Communication With The Gauge Control Module Loss of communication
U0416-68 VSA Modulator-Control Unit Malfunction Signal error
U0416-92 Invalid Data Received From VSA Modulator-Control Unit Receiving malfunction information
U0416-9A Invalid Data Received From VSA Modulator-Control Unit Receiving malfunction information
U0416-F8 VSA Modulator-Control Unit Malfunction Signal error
U0423-68 Invalid Data Received From Gauge Control Module Receiving malfunction information
U3000-49 Parking and Back-Up Sensor Control Unit Internal Electronic Failure Internal error
U3000-51 Parking and Back-Up Sensor Control Unit Update Incomplete Internal error
POWER DISTRIBUTION MODULE

DTC Description DTC type
B1052 Relay control module (power distribution module) internal (EEPROM) error Internal error
B1075 Headlight switch malfunction Signal error
B108A Right side parking light circuit shorted Signal error
B108B Left side parking light circuit shorted Signal error
B108C Right side headlight low beam circuit shorted Signal error
B108D Left side headlight low 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
B1093 Front fog light control current overload failure Signal error
B26A0 Front heat seat control current overload failure Signal error
B26A2 AC clutch control current overload failure Signal error
B26A3 Front blower current overload failure Signal error
B26A4 Rear blower current overload failure Signal error
B26A9 Fuel pump control current overload failure Signal error
B26AB Ignition coil control current overload failure Signal error
B26AE Horn current overload failure Signal error
U1280 B-CAN communication bus line error (BUS-OFF) Loss of communication
U1291 Semiconductor fuse relay module lost communication with relay control module Loss of communication
DRIVER'S POWER SEAT CONTROL UNIT

DTC Description DTC type
B1802 Power seat control unit internal (EEPROM) error Internal error
B1803 Power mirror control unit Internal (EEPROM) error Internal error
B1813 Lumbar support motor A pulse error (no change in pulse) Signal error
B1814 Lumbar support motor B pulse error (no change in pulse) Signal error
B1816 Left bolster motor pulse error (no change in pulse) Signal error
B1817 4 direction horizontal switch failure Signal error
B1818 4 direction vertical switch failure Signal error
B1819 Toggle switch failure Signal error
B1825 Slide pulse error (no change in pulse for 1 second) Signal error
B1826 Front height (tilt) pulse error (no change in pulse for 1 second) Signal error
B1827 Rear height (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
B1837 Memory position calling timeout Signal error
B1838 Right bolster motor pulse error (no change in pulse) Signal error
B1839 Thigh support motor pulse error (no change in pulse) Signal error
B1843 LOCAL communication error Loss of communication
B1844 Power seat slide switch circuit malfunction Signal error
B1845 Power seat recline switch circuit malfunction Signal error
B1846 Power seat front up-down (tilt) switch circuit malfunction Signal error
B1847 Power seat rear up-down (height) switch circuit malfunction Signal error
U0199 Power seat control unit lost communication with PW master SW Loss of communication
U1280 B-CAN communication bus line error (BUS-OFF) Loss of communication
U1281 Power seat control unit lost communication with MICU (body control module) (MICU frame) Loss of communication
U128D Lost communication with gauge control module (VSP/NE frame) Loss of communication
FRONT PASSENGER'S POWER SEAT CONTROL UNIT

DTC Description DTC type
B1C02 Front passenger's power seat control unit internal (EEPROM) error Internal error
B1C13 Front passenger's lumbar support motor A pulse error (no change in pulse) Signal error
B1C14 Front passenger's lumbar support motor B pulse error (no change in pulse) Signal error
B1C16 Front passenger's left bolster motor pulse error (no change in pulse) Signal error
B1C17 Front passenger's 4 direction horizontal switch failure Signal error
B1C18 Front passenger's 4 direction vertical switch failure Signal error
B1C19 Front passenger's toggle switch failure Signal error
B1C25 Front passenger's slide pulse error (no change in pulse) Signal error
B1C26 Front passenger's front height (tilt) pulse error (no change in pulse) Signal error
B1C27 Front passenger's rear height (height) pulse error (no change in pulse) Signal error
B1C28 Front passenger's recline pulse error (no change in pulse) Signal error
B1C38 Front passenger's right bolster motor pulse error (no change in pulse) Signal error
B1C39 Front passenger's thigh support motor pulse error (no change in pulse) Signal error
B1C44 Front passenger's power seat slide switch circuit malfunction Signal error
B1C45 Front passenger's power seat recline switch circuit malfunction Signal error
B1C46 Front passenger's power seat front up-down (tilt) switch circuit malfunction Signal error
B1C47 Front passenger's power seat rear up-down (height) switch circuit malfunction Signal error
U1280 B-CAN communication bus line error (BUS-OFF) Loss of communication
U1281 Front passenger's power seat control unit lost communication with MICU/BCM (body control module) 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 inside 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
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 (body control module) (MICU frame) Loss of communication
U128D 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 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 B-CAN communication bus line error (BUS-OFF) Loss of communication
VENTILATED SEAT 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 (ventilated seat control unit) lost communication with climate control unit Loss of communication
U1280 B-CAN communication bus line error (BUS-OFF) 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 (gauge control module) Loss of communication