DTC Troubleshooting Index

WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.

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

Battery voltage DTCs
Internal error DTCs
Loss of communication DTCs
Signal error DTCs

Driver's MICU

DRIVER'S MICU DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
B10A2	Driver's MICU internal (EEPROM) error	Internal error	(see DTC B10A2- Driver's MICU Internal (EEPROM) Error )
B10CF	Left daytime running lights circuit malfunction	Signal error	(see DTC B10CF: LEFT DAYTIME RUNNING LIGHTS CIRCUIT MALFUNCTION )
B1036	Driver's MICU IG1 line input error	Signal error	(see DTC B1036: DRIVER'S MICU IG1 LINE INPUT ERROR )
B1077	Wiper (As) signal error	Signal error	(see DTC TROUBLESHOOTING )
B1275	Headlight OFF position circuit malfunction	Signal error	(see DTC B1275: HEADLIGHT OFF POSITION CIRCUIT MALFUNCTION; DTC B1276: COMBINATION LIGHT SWITCH PARKING (SMALL) POSITION CIRCUIT MALFUNCTION; DTC B1277: HEADLIGHT AUTO POSITION CIRCUIT MALFUNCTION; DTC B1278: HEADLIGHT ON POSITION CIRCUIT MALFUNCTION )
B1276	Combination light switch parking (small) position circuit malfunction	Signal error	(see DTC B1275: HEADLIGHT OFF POSITION CIRCUIT MALFUNCTION; DTC B1276: COMBINATION LIGHT SWITCH PARKING (SMALL) POSITION CIRCUIT MALFUNCTION; DTC B1277: HEADLIGHT AUTO POSITION CIRCUIT MALFUNCTION; DTC B1278: HEADLIGHT ON POSITION CIRCUIT MALFUNCTION )
B1277	Headlight AUTO position circuit malfunction	Signal error	(see DTC B1275: HEADLIGHT OFF POSITION CIRCUIT MALFUNCTION; DTC B1276: COMBINATION LIGHT SWITCH PARKING (SMALL) POSITION CIRCUIT MALFUNCTION; DTC B1277: HEADLIGHT AUTO POSITION CIRCUIT MALFUNCTION; DTC B1278: HEADLIGHT ON POSITION CIRCUIT MALFUNCTION )
B1278	Headlight ON position circuit malfunction	Signal error	(see DTC B1275: HEADLIGHT OFF POSITION CIRCUIT MALFUNCTION; DTC B1276: COMBINATION LIGHT SWITCH PARKING (SMALL) POSITION CIRCUIT MALFUNCTION; DTC B1277: HEADLIGHT AUTO POSITION CIRCUIT MALFUNCTION; DTC B1278: HEADLIGHT ON POSITION CIRCUIT MALFUNCTION )
B1279	Dimmer switch circuit malfunction	Signal error	(see DTC B1279: DIMMER SWITCH CIRCUIT MALFUNCTION )
B1280	Turn switch circuit malfunction	Signal error	(see DTC TROUBLESHOOTING )
B1281	Front wiper MIST position circuit malfunction	Signal error	(see DTC B1281: FRONT WIPER MIST POSITION CIRCUIT MALFUNCTION; DTC B1282: FRONT WIPER INT (AUTO) POSITION CIRCUIT MALFUNCTION; DTC B1283: FRONT WIPER LOW POSITION CIRCUIT MALFUNCTION; DTC B1284: FRONT WIPER HIGH POSITION CIRCUIT MALFUNCTION )
B1282	Front wiper INT (AUTO) position circuit malfunction	Signal error	(see DTC B1281: FRONT WIPER MIST POSITION CIRCUIT MALFUNCTION; DTC B1282: FRONT WIPER INT (AUTO) POSITION CIRCUIT MALFUNCTION; DTC B1283: FRONT WIPER LOW POSITION CIRCUIT MALFUNCTION; DTC B1284: FRONT WIPER HIGH POSITION CIRCUIT MALFUNCTION )
B1283	Front wiper LOW position circuit malfunction	Signal error	(see DTC B1281: FRONT WIPER MIST POSITION CIRCUIT MALFUNCTION; DTC B1282: FRONT WIPER INT (AUTO) POSITION CIRCUIT MALFUNCTION; DTC B1283: FRONT WIPER LOW POSITION CIRCUIT MALFUNCTION; DTC B1284: FRONT WIPER HIGH POSITION CIRCUIT MALFUNCTION )
B1284	Front wiper HIGH position circuit malfunction	Signal error	(see DTC B1281: FRONT WIPER MIST POSITION CIRCUIT MALFUNCTION; DTC B1282: FRONT WIPER INT (AUTO) POSITION CIRCUIT MALFUNCTION; DTC B1283: FRONT WIPER LOW POSITION CIRCUIT MALFUNCTION; DTC B1284: FRONT WIPER HIGH POSITION CIRCUIT MALFUNCTION )
U0155	Driver's MICU lost communication with gauge control module	Loss of communication	(see DTC U0155: DRIVER'S MICU LOST COMMUNICATION WITH GAUGE CONTROL MODULE )
U0199	Driver's MICU lost communication with door multiplex control unit	Loss of communication	(see DTC U0199: DRIVER'S MICU LOST COMMUNICATION WITH DOOR MULTIPLEX CONTROL UNIT )
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U1280: Communication bus Line Error (BUS-OFF) )
U1283	Driver's MICU lost communication with passenger's MICU	Loss of communication	(see DTC U1283: Driver's MICU Lost Communication with Passenger's MICU )

Passenger's MICU

PASSENGER' MICU DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
B11A2	Passenger's MICU internal (EEPROM) error	Internal error	(see DTC B11A2: Passenger's MICU Internal (EEPROM) Error )
B11C7	Passenger's MICU IG1 line input error	Signal error	(see DTC B11C7: PASSENGER'S MICU IG1 LINE INPUT ERROR )
B11CF	Right daytime running lights circuit malfunction	Signal error	(see DTC B11CF: RIGHT DAYTIME RUNNING LIGHTS CIRCUIT MALFUNCTION )
B1575	Auto lighting sensor malfunction	Signal error	(see DTC B1575: AUTO LIGHTING SENSOR MALFUNCTION )
U0155	Passenger's MICU lost communication with gauge control module	Loss of communication	(see DTC U0155: DRIVER'S MICU LOST COMMUNICATION WITH GAUGE CONTROL MODULE )
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U1280: Communication bus Line Error (BUS-OFF) )
U1282	Passenger's MICU lost communication with driver's MICU	Loss of communication	(see DTC U1282. PASSENGER'S MICU LOST COMMUNICATION WITH DRIVER'S MICU )

Door Multiplex Control Unit

DOOR MULTIPLEX CONTROL UNIT DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
B1125	Driver's power window motor A pulse malfunction	Signal error	(see DTC TROUBLESHOOTING )
B1126	Driver's power window motor B pulse malfunction	Signal error	(see DTC TROUBLESHOOTING )
B1127	Driver's door key cylinder switch malfunction	Signal error	(see DTC TROUBLESHOOTING )
B1128	Driver's door lock switch malfunction	Signal error	(see DTC B1128: DRIVER'S DOOR LOCK SWITCH SIGNAL MALFUNCTION )
B1129	Driver's door lock knob switch malfunction	Signal error	(see DTC B1129: DRIVER'S DOOR LOCK KNOB MALFUNCTION )
B1130	Front passenger's power window motor A pulse malfunction	Signal error	(see DTC B1130. FRONT PASSENGER'S POWER WINDOW MOTOR A PULSE ERROR; DTC B1131: FRONT PASSENGER'S POWER WINDOW MOTOR B PULSE ERROR )
B1131	Front passenger's power window motor B pulse malfunction	Signal error	(see DTC B1130. FRONT PASSENGER'S POWER WINDOW MOTOR A PULSE ERROR; DTC B1131: FRONT PASSENGER'S POWER WINDOW MOTOR B PULSE ERROR )
B1140	Driver's power window position detect circuit malfunction	Signal error	(see DTC B1140: DRIVER'S POWER WINDOW POSITION DETECT CIRCUIT MALFUNCTION )
B1142	Door multiplex control unit lost communication with front passenger's power window switch (UART line open)	Signal error	(see DTC B1142: DOOR MULTIPLEX CONTROL UNIT LOST COMMUNICATION WITH FRONT PASSENGER'S POWER WINDOW SWITCH (UART LINE OPEN) )
B1145	Front passenger's power window position detect circuit malfunction	Loss of communication	(see DTC B1145: FRONT PASSENGER'S POWER WINDOW POSITION DETECT CIRCUIT MALFUNCTION )
U0155	Door multiplex control unit lost communication with gauge control module	Loss of communication	(see DTC U0155: DOOR MULTIPLEX CONTROL UNIT LOST COMMUNICATION WITH GAUGE CONTROL MODULE )
U0164	Door multiplex control unit lost communication with climate control unit	Loss of communication	(see DTC U0164: DOOR MULTIPLEX CONTROL UNIT LOST COMMUNICATION WITH CLIMATE CONTROL UNIT )
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U1280: Communication bus Line Error (BUS-OFF) )
U1282	Door multiplex control unit lost communication with driver's MICU	Loss of communication	(see DTC U1282: DOOR MULTIPLEX CONTROL UNIT LOST COMMUNICATION WITH DRIVER'S MICU )
U1283	Door multiplex control unit lost communication with passenger's MICU	Loss of communication	(see DTC U1283: DOOR MULTIPLEX CONTROL UNIT LOST COMMUNICATION WITH PASSENGER'S MICU )

Immobilizer-Keyless Control Unit

IMMOBILIZER-KEYLESS CONTROL UNIT DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
U0155	Immobilizer-keyless control unit lost communication with gauge control module	Loss of communication	(see DTC TROUBLESHOOTING )
U0199	Immobilizer-keyless control unit lost communication with door multiplex control unit	Loss of communication	(see DTC U0199: IMMOBILIZER-KEYLESS CONTROL UNIT LOST COMMUNICATION WITH DOOR MULTIPLEX CONTROL UNIT )
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U1280: Communication bus Line Error (BUS-OFF) )
U1282	Immobilizer-keyless control unit lost communication with driver's MICU	Loss of communication	(see DTC U1282: IMMOBILIZER-KEYLESS CONTROL UNIT LOST COMMUNICATION WITH DRIVER'S MICU )

Gauge Control Module

GAUGE CONTROL MODULE DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
B1152	Gauge control module (EEPROM) error	Internal error	(see DTC TROUBLESHOOTING )
B1175	Fuel level sensor (Fuel gauge sending unit) circuit malfunction	Signal error	(see DTC B1175: FUEL LEVEL SENSOR (FUEL GAUGE SENDING UNIT) CIRCUIT )
B1176	Fuel level sensor (Fuel gauge sending unit) circuit short	Signal error	(see DTC B1176: FUEL LEVEL SENSOR (FUEL GAUGE SENDING UNIT) CIRCUIT SHORT )
U0029	F-CAN communication line error	Loss of communication	(see DTC U0029: F-CAN COMMUNICATION LINE ERROR )
U0100	Gauge control module lost communication with PCM	Loss of communication	(see DTC U0100: GAUGE CONTROL MODULE LOST COMMUNICATION WITH PCM )
U0122	Gauge control module lost communication with VSA modulator-control unit (VSA message)	Loss of communication	(see DTC U0122: GAUGE CONTROL MODULE LOST COMMUNICATION WITH VSA MODULATOR-CONTROL UNIT (VSA MESSAGE) )
U0127	Gauge control module lost communication with the TPMS control unit (TPMS message)	Loss of communication	(see DTC U0127: GAUGE CONTROL MODULE LOST COMMUNICATION WITH THE TPMS CONTROL UNIT (TPMS MESSAGE) )
U0131	Gauge control module lost communication with EPS control unit (EPS message)	Loss of communication	(see DTC U0131: GAUGE CONTROL MODULE LOST COMMUNICATION WITH EPS CONTROL UNIT (EPS MESSAGE) )
U0151	Gauge control module lost communication with SRS unit	Loss of communication	(see DTC U0151: GAUGE CONTROL MODULE LOST COMMUNICATION WITH SRS UNIT )
U128B	Gauge control module lost communication with power control unit	Loss of communication	(see DTC U128B: GAUGE CONTROL MODULE LOST COMMUNICATION WITH POWER CONTROL UNIT )
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U1280: Communication bus Line Error (BUS-OFF) )
U1282	Gauge control module lost communication with driver's MICU	Loss of communication	(see DTC U1282: GAUGE CONTROL MODULE LOST COMMUNICATION WITH DRIVER'S MICU )
U1283	Gauge control module lost communication with passenger's MICU	Loss of communication	(see DTC U1283: GAUGE CONTROL MODULE LOST COMMUNICATION WITH PASSENGER'S MICU )
U1286	Gauge control module lost communication with keyless access control unit	Loss of communication	(see DTC U1286: GAUGE CONTROL MODULE LOST COMMUNICATION WITH KEYLESS ACCESS CONTROL UNIT )
U1289	Gauge control module lost communication with remote slot control unit	Loss of communication	(see DTC U1289: GAUGE CONTROL MODULE LOST COMMUNICATION WITH REMOTE SLOT CONTROL UNIT )

HandsFreeLink Control Unit

HANDSFREELINK CONTROL UNIT DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
B1775	Microphone input/output short to power/open (with navigation system)	Signal error	(see DTC TROUBLESHOOTING )
	Microphone input/output short to power/open (without navigation system)	Signal error	(see DTC B1775: MICROPHONE INPUT/OUTPUT SHORT TO POWER/OPEN (WITHOUT NAVIGATION) )
B1776	Microphone input/output short to ground (with navigation system)	Signal error	(see DTC B1776: MICROPHONE INPUT/OUTPUT SHORT TO GROUND (WITH NAVIGATION) )
	Microphone input/output short to ground (without navigation system)	Signal error	(see DTC B1776: MICROPHONE INPUT/OUTPUT SHORT TO GROUND (WITHOUT NAVIGATION) )
B1779	HFL switch or voice control switch (Pick-UP/Hang-UP buttons) circuit open/short (with navigation system)	Signal error	(see DTC B1779: HFL SWITCH OR VOICE CONTROL SWITCH (PICK-UP/HANG-UP BUTTONS) CIRCUIT OPEN/SHORT TO POWER (WITH NAVIGATION) )
	HFL switch or voice control switch (Pick-UP/Hang-UP buttons) circuit open/short (without navigation system)	Signal error	(see DTC B1779: HFL SWITCH OR VOICE CONTROL SWITCH (HFL TALK/HFL BACK BUTTONS) CIRCUIT OPEN/SHORT TO POWER (WITHOUT NAVIGATION) )
B1780	HFL switch (Pick-UP/Hang-UP buttons) circuit short to power	Signal error	(see DTC B1780: HFL SWITCH (PICK-UP/HANG-UP BUTTONS) CIRCUIT SHORT )
B1792	HandsFreeLink control unit internal error	Signal error	(see DTC B1792: HANDSFREELINK CONTROL UNIT INTERNAL ERROR )
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U0199: DRIVER'S MICU LOST COMMUNICATION WITH DOOR MULTIPLEX CONTROL UNIT )

Climate Control Unit

CLIMATE CONTROL UNIT DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U1280: Communication bus Line Error (BUS-OFF) )
U0155	Climate control unit lost communication with gauge control module	Loss of communication	(see DTC TROUBLESHOOTING )
B1215	An open or short in the recirculation control motor circuit	Signal error	(see DTC B1215 OR DTC INDICATOR J AND MODE: AN OPEN OR SHORT IN THE RECIRCULATION CONTROL MOTOR CIRCUIT )
B1225	An open in the in-car temperature circuit	Signal error	(see DTC B1225 OR DTC INDICATOR A AND AUTO: AN OPEN IN THE IN-CAR TEMPERATURE SENSOR CIRCUIT )
B1226	A short in the m-car temperature sensor circuit	Signal error	(see DTC B1226 OR DTC INDICATOR B AND AUTO: A SHORT IN THE IN-CAR TEMPERATURE SENSOR CIRCUIT )
B1227	An open in the outside air temperature sensor circuit	Signal error	(see DTC B1227 OR DTC INDICATOR C AND AUTO: AN OPEN IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT )
B1228	A short in the outside air temperature sensor circuit	Signal error	(see DTC B1228 OR DTC INDICATOR D AND AUTO: A SHORT IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT )
B1229	An open in the sunlight sensor circuit	Signal error	(see DTC B1229 OR DTC INDICATOR E AND AUTO: AN OPEN IN THE SUNLIGHT SENSOR CIRCUIT )
B1230	A short in the sunlight sensor circuit	Signal error	(see DTC B1230 OR DTC INDICATOR F AND AUTO: A SHORT IN THE SUNLIGHT SENSOR CIRCUIT )
B1231	An open in the evaporator temperature sensor circuit	Signal error	(see DTC B1231 OR DTC INDICATOR G AND AUTO: AN OPEN IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT )
B1232	A short in the evaporator temperature sensor circuit	Signal error	(see DTC B1232 OR DTC INDICATOR H AND AUTO: A SHORT IN THE EVAPORATOR TEMPERATURE SENSOR CIRCUIT )
B1233	An open in the driver's air mix control motor circuit	Signal error	(see DTC B1233 OR DTC INDICATOR J AND AUTO: AN OPEN IN THE DRIVER'S AIR MIX CONTROL MOTOR CIRCUIT )
B1234	A short in the driver's air mix control motor circuit	Signal error	(see DTC B1234 OR DTC INDICATOR K AND AUTO: A SHORT IN THE DRIVER'S AIR MIX CONTROL MOTOR CIRCUIT )
B1235	A problem in the driver's air mix control linkage, door, or motor circuit	Signal error	(see DTC B1235 OR DTC INDICATOR L AND AUTO: A PROBLEM IN THE DRIVER'S AIR MIX CONTROL LINKAGE, DOOR, OR MOTOR CIRCUIT )
B1236	An open in the passenger's air mix control motor circuit	Signal error	(see DTC B1236 OR DTC INDICATOR M AND AUTO: AN OPEN IN THE PASSENGER'S AIR MIX CONTROL MOTOR CIRCUIT )
B1237	A short in the passenger's air mix control motor circuit	Signal error	(see DTC B1237 OR DTC INDICATOR N AND AUTO: A SHORT IN THE PASSENGER'S AIR MIX CONTROL MOTOR CIRCUIT )
B1238	A problem in the passenger's air mix control linkage, door, or motor circuit	Signal error	(see DTC B1238 OR DTC INDICATOR P AND AUTO: A PROBLEM IN THE PASSENGER'S AIR MIX CONTROL LINKAGE, DOOR, OR MOTOR CIRCUIT )
B1239	An open or short in the driver's mode control motor circuit	Signal error	(see DTC B1239 OR DTC INDICATOR A AND MODE: AN OPEN OR SHORT IN THE DRIVER'S MODE CONTROL MOTOR CIRCUIT )
B1240	A problem in the driver's mode control linkage, doors, or motor	Signal error	(see DTC B1240 OR DTC INDICATOR B AND MODE: A PROBLEM IN THE DRIVER'S MODE CONTROL LINKAGE, DOORS, OR MOTOR CIRCUIT )
B1241	A problem in the blower motor circuit	Signal error	(see DTC B1241 OR DTC INDICATOR C AND MODE: A PROBLEM IN THE BLOWER MOTOR CIRCUIT )
B1242	An open or short in the passenger's mode control motor circuit	Signal error	(see DTC B1242 OR DTC INDICATOR E AND MODE: AN OPEN OR SHORT IN THE PASSENGER'S MODE CONTROL MOTOR CIRCUIT )
B1243	A problem in the passenger's mode control linkage, doors, or motor	Signal error	(see DTC B1243 OR DTC INDICATOR F AND MODE: A PROBLEM IN THE PASSENGER'S MODE CONTROL LINKAGE, DOORS, OR MOTOR CIRCUIT )
B2967	An open in the humidity sensor circuit	Signal error	(see DTC B2967 OR DTC INDICATOR A AND WINDSHIELD DEFROST: AN OPEN IN THE HUMIDITY SENSOR CIRCUIT )
B2968	A short in the humidity sensor circuit	Signal error	(see DTC B2968 OR DTC INDICATOR B AND WINDSHIELD DEFROST: A SHORT IN THE HUMIDITY SENSOR CIRCUIT )
B2969	Climate control unit lost communication with driver's MICU (WIP SW message)	Signal error	(see DTC B2969: CLIMATE CONTROL UNIT LOST COMMUNICATION WITH DRIVER'S MICU (WIPSW MESSAGE) )
B2979	An open in the A/C pressure sensor circuit	Signal error	(see DTC B2979 OR DTC INDICATOR E AND WINDSHIELD DEFROST: AN OPEN IN THE A/C PRESSURE SENSOR CIRCUIT )
B2980	A short in the A/C pressure sensor circuit	Signal error	(see DTC B2980 OR DTC INDICATOR F AND WINDSHIELD DEFROST: A SHORT IN THE A/C PRESSURE SENSOR CIRCUIT )
B2983	A problem in the recirculation control linkage, doors, or motor circuit	Signal error	(see DTC B2983 OR DTC INDICATOR K AND MODE: A PROBLEM IN THE RECIRCULATION CONTROL LINKAGE, DOOR, OR MOTOR CIRCUIT )

AcuraLink Control Unit

ACURALINK CONTROL UNIT DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
B2240	XM antenna error	Internal error	(see DTC TROUBLESHOOTING )
B2248	HIP power supply abnormal (more than 16 V)	Battery voltage	(see DTC B2248: HIP POWER SUPPLY ABNORMAL (MORE THAN 16 V) )
B2249	HIP power supply abnormal (less than 9 V)	Battery voltage	(see DTC B2249: HIP POWER SUPPLY ABNORMAL (LESS THAN 9 V) )
U0100	Gauge control module lost communication with PCM	Loss of communication	(see DTC U0100: GAUGE CONTROL MODULE LOST COMMUNICATION WITH PCM )
U0155	Gauge control module lost F-CAN communication with AcuraLink control unit (XM receiver)	Loss of communication	(see DTC U0155: F-CAN LOST COMMUNICATION WITH GAUGE CONTROL MODULE )
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U1280: Communication bus Line Error (BUS-OFF) )
U128D	AcuraLink control unit (XM receiver) lost B-CAN communication with gauge control module	Loss of communication	(see DTC U128D: ACURALINK CONTROL UNIT (XM RECEIVER) LOST B-CAN COMMUNICATION WITH GAUGE CONTROL MODULE )

Power Seat Control Unit

POWER SEAT CONTROL UNIT DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
B1802	Power seat control unit failure	Internal error	(see DTC TROUBLESHOOTING )
B1825	Power seat slide motor pulse error	Signal error	(see DTC B1825: POWER SEAT SLIDE MOTOR PULSE ERROR )
B1826	Power seat front up-down motor pulse error	Signal error	(see DTC B1826: POWER SEAT FRONT UP-DOWN MOTOR PULSE ERROR )
B1827	Power seat rear up-down motor pulse error	Signal error	(see DTC B1827: POWER SEAT REAR UP-DOWN MOTOR PULSE ERROR )
B1828	Power seat recline motor pulse error	Signal error	(see DTC B1828: POWER SEAT RECLINE MOTOR PULSE ERROR )
B1829	A/T P signal and VSP signal have an illegal combination	Signal error	(see DTC B1829: A/T P SIGNAL AND VSP SIGNAL HAVE AN ILLEGAL COMBINATION )
B1830	Left mirror position sensor open	Signal error	(see DTC B1830: LEFT MIRROR POSITION SENSOR MALFUNCTION )
B1832	Right mirror position sensor open	Signal error	(see DTC B1832: RIGHT MIRROR POSITION SENSOR MALFUNCTION )
B1836	Power seat position sensor circuit short	Signal error	(see DTC B1836: POWER SEAT POSITION SENSOR CIRCUIT SHORT )
B1837	Memory position delay	Signal error	(see DTC B1837: MEMORY POSITION DELAY )
B1843	UART communication error	Signal error	(see DTC B1843: UART COMMUNICATION ERROR )
B1844	Power seat slide switch circuit malfunction	Signal error	(see DTC B1844: POWER SEAT SLIDE SWITCH CIRCUIT MALFUNCTION )
B1845	Power seat recline switch circuit malfunction	Signal error	(see DTC B1845: POWER SEAT RECLINE SWITCH CIRCUIT MALFUNCTION )
B1846	Power seat front up-down switch circuit malfunction	Signal error	(see DTC B1846: POWER SEAT FRONT UP-DOWN SWITCH CIRCUIT MALFUNCTION )
B1847	Power seat rear up-down switch circuit malfunction	Signal error	(see DTC B1847: POWER SEAT REAR UP-DOWN SWITCH CIRCUIT MALFUNCTION )
U0155	Lost communication with gauge control module (VSP/NE frame)	Loss of communication	(see DTC U0155: LOST COMMUNICATION WITH GAUGE CONTROL MODULE (VSP/NE FRAME) )
U0199	Lost communication with P/W (DR Lock SW frame)	Loss of communication	(see DTC U0199: LOST COMMUNICATION WITH P/W (DR LOCK SW FRAME) )
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U1280: Communication bus Line Error (BUS-OFF) )
U1282	Lost communication with driver's MICU	Loss of communication	(see DTC U1282: LOST COMMUNICATION WITH DRIVER'S MICU )

Power Control Unit

POWER CONTROL UNIT DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
B12A1	Power control unit internal (CPU) error	Internal error	(see DTC B12A1 )
B12C5	Engine start/stop switch failure	Internal error	(see DTC B12C5 )
B12C6	Electric steering lock switch C/D monitor circuit failure	Internal error	(see DTC B12C6 )
B12C7	Electric steering lock motor driven circuit failure	Internal error	(see DTC B12C7 )
B12D0	Power control unit IG1A circuit error	Internal error	(see DTC B12D0 )
B12D1	Power control unit IG1B circuit error	Internal error	(see DTC B12D1 )
B12D2	Power control unit IG2 circuit error	Internal error	(see DTC B12D2 )
B12D3	Power control unit IG latch circuit error	Internal error	(see DTC B12D3 )
B12E0	Electric steering lock switch internal error	Internal error	(see DTC B12E0 )
B12E1	Electric steering lock motor internal error	Internal error	(see DTC B12E1 )
B12E2	Electric steering lock low level failure of MTRCUT1	Signal error	(see DTC B12E2 )
B12E3	Electric steering lock high level failure of MTRCUT1	Signal error	(see DTC B12E3 )
B12E4	Electric steering lock high level failure of MTRCUT2	Signal error	(see DTC B12E4 )
B12F0	Power control unit lost communication with electric steering lock	Loss of communication	(see DTC B12F0 )
B12F1	Power control unit lost communication with Remote slot control unit	Loss of communication	(see DTC B12F1 )
B12F2	Power control unit lost communication with keyless access control unit	Loss of communication	(see DTC B12F2 )
U0155	Power control unit lost communication with gauge control module	Loss of communication	(see DTC U0155 )
U0199	Power control unit lost communication with door multiplex control unit	Loss of communication	(see DTC U0199 )
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U1280: Communication bus Line Error (BUS-OFF) )

Remote Slot Control Unit

REMOTE SLOT CONTROL UNIT DTC TROUBLESHOOTING INDEX

DTC	Description	DTC Type	Refer To
B1901	Remote slot control unit internal error (CPU error)	Internal error	(see DTC B1901 )
B1902	Remote slot control unit internal error (EEPROM error)	Internal error	(see DTC B1902 )
B1926	Remote slot control unit antenna open or short	Internal error	(see DTC B1926 )
B1927	MTRCONT signal error	Signal error	(see DTC B1927 )
B1930	Remote slot control unit LOCK/UNLOCK error	Signal error	(see DTC B1930 )
B1931	Remote slot control unit no response	Signal error	(see DTC B1931 )
U0155	Remote slot control unit lost communication with gauge control module	Loss of communication	(see DTC U0155 )
U1280	Communication bus line error (BUS-OFF)	Loss of communication	(see DTC U1280: Communication bus Line Error (BUS-OFF) )

Keyless Access Control Unit

KEYLESS ACCESS CONTROL UNIT DTC TROUBLESHOOTING INDEX

DTC	Description
DTC B12A1	Power Control Unit Internal (CPU) Error
DTC B12C5	Engine Start/Stop Switch Failure
DTC B12C6	Electric Steering Lock Switch C/D Monitor Circuit Failure
DTC B12C7	Electric Steering Lock Motor Circuit Failure
DTC B12D0	Power Control Unit IG1A Circuit Error; DTC B12D1: Power Control Unit IG1B Circuit Error; DTC B12D2: Power Control Unit IG2 Circuit Error; DTC B12D3: Power Control Unit IG Latch Circuit Error
DTC B12E0	Electric Steering Lock Switch Internal Error
DTC B12E1	Electric Steering Lock Motor Internal Error; DTC B12E2: Electric Steering Lock Low Level Failure of MTRCUT1; DTC B12E3: Electric Steering Lock High Level Failure of MTRCUT1; DTC B12E4: Electric Steering Lock High Level Failure of MTRCUT2
DTC B12F0	Power Control Unit Lost Communication With Electric Steering Lock
DTC B12F1	Power Control Unit Lost Communication With Remote Slot Control Unit
DTC B12F2	Power Control Unit Lost Communication With Keyless Access Control Unit
DTC U0155	Power Control Unit Lost Communication With Gauge Control Module
DTC U0199	Power Control Unit Lost Communication With Door Multiplex Control Unit
DTC B1601	Keyless Access Control Unit Internal (CPU) Error; DTC B1602: Keyless Access Control Unit Internal (EEPROM) Error
DTC B1632	MTR CONT Signal Error; DTC B1927: MTR CONT Signal Error
DTC B1640	RF Unit 1 Not Connected
DTC B1641	RF Unit 2 Not Connected
DTC B1646	Driver's Door LF Antenna Circuit Open or Short
DTC B1648	Passenger's Door LF Antenna Circuit Open or Short
DTC B1658	Rear Bumper LF Antenna Circuit Open or Short
DTC B1660	Front Interior LF Antenna Circuit Open or Short
DTC B1664	Rear Interior LF Antenna Circuit Open or Short
DTC B1668	Rear Shelf LF Antenna Circuit Open or Short
DTC U0155	Keyless Access Control Unit Lost Communication With Gauge Control Module
DTC U0199	Keyless Access Control Unit Lost Communication With Door Multiplex Control Unit
DTC U1282	Keyless Access Control Unit Lost Communication With Driver's MICU
DTC U1283	Keyless Access Control Unit Lost Communication With Passenger's MICU
DTC B1901	Remote Slot Control Unit Internal Error (CPU Error); DTC B1902: Remote Slot Control Unit Internal Error (EEPROM Error)
DTC B1926	Remote Slot Antenna Open or Short
DTC B1930	Remote Slot Control Unit LOCK/UNLOCK Error
DTC B1931	Remote Slot Control Unit no Response
DTC U0155	Remote Slot Control Unit Lost Communication With Gauge Control Module