DTC Troubleshooting Index
WARNING: This page is about a different variant/trim than selected.
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
Drivers MICU
DTC DESCRIPTION CHART
| DTC | Description | DTC Type |
|---|---|---|
| B10A2 | Driver's MICU (EEPROM) error | Internal error |
| B10CF | Left daytime running lights circuit malfunction | Signal error |
| B1036 | Driver's MICU IG1 line input error | Signal error |
| B1077 | Wiper Auto-stop (As) signal circuit malfunction | Signal error |
| B1275 | Headlight switch OFF position circuit malfunction | Signal error |
| B1276 | Headlight switch PARKING position circuit malfunction | Signal error |
| B1277 | Headlight switch AUTO position circuit malfunction | Signal error |
| B1278 | Headlight switch 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 position circuit malfunction | Signal error |
| B1283 | Front wiper LOW position circuit malfunction | Signal error |
| B1284 | Front wiper HIGH position circuit malfunction | Signal error |
| U0155 | Driver's MICU lost communication with gauge control module | Loss of communication |
| U0199 | Driver's MICU lost communication with door multiplex control unit | Loss of communication |
| U1280 | Communication bus line error (BUS-OFF) | Loss of communication |
| U1283 | Driver's MICU lost communication with passenger's MICU | Loss of communication |
Passenger's MICU
DTC DESCRIPTION CHART
| DTC | Description | DTC Type |
|---|---|---|
| B1028 | Rear window wiper motor (As) signal error | Signal error |
| B11A2 | Passenger's MICU (EEPROM) error | Internal error |
| B11C7 | Passenger's MICU IG1 line input error | Signal error |
| B11CF | Right daytime running lights circuit malfunction | Signal error |
| B1575 | Auto light sensor circuit malfunction | Signal error |
| U0155 | Passenger's MICU lost communication with gauge control module | Loss of communication |
| U1280 | Communication bus line error (BUS-OFF) | Loss of communication |
| U1282 | Passenger's MICU lost communication with driver's MICU | Loss of communication |
Immobilizer-Keyless Control Unit
DTC DESCRIPTION CHART
| DTC | Description | DTC Type |
|---|---|---|
| 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 |
| U1280 | Communication bus line error (BUS-OFF) | Loss of communication |
| U1282 | Immobilizer-keyless control unit lost communication with driver's MICU | Loss of communication |
Door Multiplex Control Unit
DTC DESCRIPTION CHART
| 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 key cylinder switch input circuit 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-phase pulse signal input error | Signal error |
| B1131 | Front passenger's power window motor B-phase pulse signal input error | Signal error |
| B1140 | Driver's power window position detect circuit malfunction | Signal error |
| B1142 | Door multiplex control unit lost communication with other units (UART communication error) | Signal error |
| B1145 | Front passenger's power window position detect circuit malfunction | Loss of communication |
| U0155 | Door multiplex control unit lost communication with gauge control module | Loss of communication |
| U0164 | Door multiplex control unit lost communication with climate control unit | Loss of communication |
| U1280 | Communication bus line error (BUS-OFF) | Loss of communication |
| U1282 | Door multiplex control unit lost communication with driver's MICU | Loss of communication |
| U1283 | Door multiplex control unit lost communication with passenger's MICU | Loss of communication |
Gauge Control Module
DTC DESCRIPTION CHART
| DTC | Description | DTC Type |
|---|---|---|
| B1152 | Gauge control module (EEPROM) error | Internal error |
| B1175 | Fuel level sensor (Fuel gauge sending unit) circuit malfunction | Signal error |
| B1176 | Fuel level sensor (Fuel gauge sending unit) circuit short | Signal error |
| U0029 | F-CAN communication line error | Loss of communication |
| U0100 | Gauge control module lost communication with ECM/PCM | Loss of communication |
| U0122 | Gauge control module lost communication with VSA modulator-control unit (VSA message) | Loss of communication |
| U0127 | Gauge control module lost communication with TPMS control unit (TPMS message) | Loss of communication |
| U0131 | Gauge control module lost communication with EPS control unit (EPS message) | Loss of communication |
| U0151 | Gauge control module lost communication with SRS unit (SRS message) | Loss of communication |
| U0230 | Gauge control module lost communication with power tailgate control unit | Loss of communication |
| U1280 | Communication bus line error (BUS-OFF) | Loss of communication |
| U1282 | Gauge control module lost communication with driver's MICU | Loss of communication |
| U1283 | Gauge control module lost communication with passenger's MICU | Loss of communication |
HandsFreeLink Control Unit
DTC DESCRIPTION CHART
| DTC | Description | DTC Type |
|---|---|---|
| B1775 | Microphone input/output shorted to power or open (with navigation) | Signal error |
| B1775 | Microphone input/output shorted to power or open (without navigation) | Signal error |
| B1776 | Microphone input/output shorted to ground (with navigation) | Signal error |
| B1776 | Microphone input/output shorted to ground (without navigation) | Signal error |
| B1779 | HandsFreeLink steering wheel switch failure | Signal error |
| B1780 | HandsFreeLink steering wheel switch line short | Signal error |
| B1792 | HandsFreeLink control module error | Internal error |
| U1280 | Communication bus line error (BUS-OFF) | Loss of communication |
DTC DESCRIPTION CHART
| DTC | Description | DTC Type |
|---|---|---|
| U1280 | Communication bus line error (BUS-OFF) | Loss of communication |
| U0155 | Lost communication with gauge control module (climate control unit) | Loss of communication |
| B121A | An open in the mode control motor circuit | Signal error |
| B121B | A short in the mode control motor circuit | Signal error |
| B1220 | A short in the recirculation control motor circuit | Signal error |
| B1225 | An open in the in-car temperature sensor circuit | Signal error |
| B1226 | A short in the in-car temperature sensor circuit | Signal error |
| B1227 | An open in the outside air temperature sensor circuit | Signal error |
| B1228 | A short in the outside air temperature sensor circuit | Signal error |
| B1229 | An open in the sunlight sensor circuit | Signal error |
| B1230 | A short in the sunlight sensor circuit | Signal error |
| B1231 | An open in the evaporator temperature sensor circuit | Signal error |
| B1232 | A short in the evaporator temperature sensor circuit | Signal error |
| B1233 | An open in the air mix control motor circuit (driver's) | Signal error |
| B1234 | A short in the air mix control motor circuit (driver's) | Signal error |
| B1235 | A problem in the air mix control motor circuit, linkage, door, or motor (driver's) | Signal error |
| B1236 | An open in the passenger's air mix control motor circuit | Signal error |
| B1237 | A short in the passenger's air mix control motor circuit | Signal error |
| B1238 | A problem in the passenger's air mix control motor circuit, linkage, door, or motor | Signal error |
| B1240 | A problem in the mode control motor circuit, linkage, door, or motor | Signal error |
| B1241 | A problem in the blower motor circuit | Signal error |
| B2983 | A problem in the recirculation control motor circuit, linkage, door, or motor | Signal error |
| B2986 | An open in the recirculation control motor circuit | Signal error |
AcuraLink Control Unit
DTC DESCRIPTION CHART
| DTC | Description | DTC Type |
|---|---|---|
| B2240 | XM antenna line failure | Internal error |
| U0100 | F-CAN lost communication with ECM/PCM | Loss of communication |
| U0155 | F-CAN lost communication with gauge control module | Loss of communication |
| U1280 | Communication bus line error (BUS-OFF) | Loss of communication |
| U128D | Lost communication with gauge control module | Loss of communication |
Power Seat Control Unit
DTC DESCRIPTION CHART
| DTC | Description | DTC Type |
|---|---|---|
| B1802 | Power seat control unit failure | Internal error |
| B1825 | Power seat slide motor pulse error | Signal error |
| B1826 | Power seat front up-down motor pulse error | Signal error |
| B1827 | Power seat rear up-down motor pulse error | Signal error |
| B1828 | Power seat recline motor pulse error | Signal error |
| B1829 | A/T-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 |
| U0155 | Power seat control unit lost communication with gauge control module | Loss of communication |
| U0199 | Power seat control unit lost communication with door multiplex control unit | Loss of communication |
| U1280 | Communication bus line error (BUS-OFF) | Loss of communication |
| U1282 | Power seat control unit lost communication with driver's MICU | Loss of communication |
Power Tailgate Control Unit
DTC DESCRIPTION CHART
| DTC | Description | DTC Type |
|---|---|---|
| B1352 | Power tailgate control unit internal error (EEPROM error) | Internal error |
| B1375 | Driver's side power tailgate 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 |
| B1381 | Tailgate closer unit release 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 |
| B1389 | Power tailgate motor clutch circuit malfunction | Signal error |
| B1390 | Power tailgate closer motor function error | Signal error |
| U0155 | Power tailgate control unit lost communication with gauge control module (VSP/NE, AT frame) | Loss of communication |
| U0199 | Power tailgate control unit lost communication with P/W (DRLOCK SW, KLDRLOCK frame) | Loss of communication |
| U1280 | Power tailgate control unit communication bus line error (BUS-OFF) | Loss of communication |
| U1282 | Power tailgate control unit lost communication with MICU (MICU frame) | Loss of communication |
| U1283 | Power tailgate control unit lost communication with rear MICU (RALOCK SW frame) | Loss of communication |