DTC Troubleshooting Index
NOTE:
Check the PCM for DTCs and troubleshoot PCM or F-CAN loss of communication errors first (see
GENERAL TROUBLESHOOTING INFORMATION
), then record all DTCs, and sort them by DTC type using the DTC troubleshooting index, then troubleshoot the DTC(s) in this order:
- Battery voltage DTCs
- Internal error DTCs
- Loss of communication DTCs (beginning with the lowest number first; for example, if B1006 and B1059 are retrieved, troubleshoot B1006 first).
- Signal error DTCs
DTC TROUBLESHOOTING CHART
| DTC | Description | ECU | DTC type |
|---|---|---|---|
| B1000 | Communication bus line error | MICU | Loss of Communication |
| B1001 | MICU CPU error | MICU | Internal Error |
| B1002 | MICU EEPROM error | MICU | Internal Error |
| B1005 | MICU lost communication with Relay Control Module | MICU | Loss of Communication |
| B1006 | MICU lost communication with Door Multiplex Control Unit (door lock switch message) | MICU | Loss of Communication |
| B1007 | MICU lost communication with Combination Switch Control Unit (headlight switch message) | MICU | Loss of Communication |
| B1008 | MICU lost communication with Gauge Control Module (A/T message) | MICU | Loss of Communication |
| B1012 | MICU lost communication with MICU-Rear Junction Box (RJU message) | MICU | Loss of Communication |
| B1026 | Passenger's door lock switch signal error | MICU | Signal Error |
| B1028 | Rear window wiper motor (As) signal error | MICU-Rear Junction Box | Signal Error |
| B1032 | MICU lost communication with SRS unit (CDS message) | MICU | Signal Error |
| B1050 | Communication bus line error | Relay Control Module | Loss of Communication |
| B1055 | Relay Control Module lost communication with MICU | Relay Control Module | Loss of Communication |
| B1056 | Relay Control Module lost communication with MICU (alarm message) | Relay Control Module | Loss of Communication |
| B1057 | Relay Control Module lost communication with MICU (door switch message) | Relay Control Module | Loss of Communication |
| B1058 | Relay Control Module lost communication with Door Multiplex Control Unit (door lock switch message) | Relay Control Module | Loss of Communication |
| B1060 | Relay Control Module lost communication with Gauge Control Module (VSP/NE message) | Relay Control Module | Loss of Communication |
| B1061 | Relay Control Module lost communication with Gauge Control Module (A/T message) | Relay Control Module | Loss of Communication |
| B1062 | Relay Control Module lost communication with Combination Switch Control Unit (headlight switch message) | Relay Control Module | Loss of Communication |
| B1063 | Relay Control Module lost communication with Combination Switch Control Unit (wiper switch message) | Relay Control Module | Loss of Communication |
| B1075 | Headlight signal error | Relay Control Module' | Signal Error |
| B1076 | Windshield wiper signal error | Relay Control Module | Signal Error |
| B1077 | Wiper switch (As) signal error | Relay Control Module | Signal Error |
| B1078 | Daytime running lights signal error (Canada models) | Relay Control Module | Signal Error |
| B1079 | Daytime running lights signal error (USA models) | Relay Control Module | Signal Error |
| B1080 | Power supply circuit (IG1 line) input error for Relay Control Module and MICU | Relay Control Module | Battery voltage |
| B1100 | Communication bus line error | Door Multiplex Control Unit | Loss of Communication |
| B1102 | Door Multiplex Control Unit internal error | Door Multiplex Control Unit | Internal Error |
| B1105 | Door Multiplex Control Unit lost communication with MICU (door switch message) | Door Multiplex Control Unit | Signal Error |
| B1106 | Door Multiplex Control Unit lost communication with MICU (MICU message) | Door Multiplex Control Unit | Signal Error |
| B1125 | Driver's power window motor A pulse error | Door Multiplex Control Unit | Signal Error |
| B1126 | Driver's power window motor B pulse error | Door Multiplex Control Unit | Signal Error |
| B1127 | Driver's door key cylinder switch signal error | Door Multiplex Control Unit | Signal Error |
| B1128 | Driver's door lock switch signal error | Door Multiplex Control Unit | Signal Error |
| B1129 | Driver's door lock knob switch signal error | Door Multiplex Control Unit | Signal Error |
| B1140 | Driver's power window position detect circuit error | Door Multiplex Control Unit | Signal Error |
| B1150 | Communication bus line error | Gauge Control Module | Loss of Communication |
| B1152 | Gauge Control Module EEPROM error | Gauge Control Module | Internal Error |
| B1155 | Gauge Control Module lost communication with Combination Switch Control Unit (headlight switch message) | Gauge Control Module | Loss of Communication |
| B1156 | Gauge Control Module lost communication with Combination Switch Control Unit (wiper switch message) | Gauge Control Module | Loss of Communication |
| B1157 | Gauge Control Module lost communication with MICU | Gauge Control Module | Loss of Communication |
| B1158 | Gauge Control Module lost communication with Relay Control Module | Gauge Control Module | Loss of Communication |
| B1159 | Gauge Control Module lost communication with MICU (door switch message) | Gauge Control Module | Loss of Communication |
| B1160 | Gauge Control Module lost communication with Door Multiplex Control Unit (door lock switch message) | Gauge Control Module | Loss of Communication |
| B1162 | Gauge Control Module lost communication with Power Tailgate Control Unit (PTG message) | Gauge Control Module | Loss of Communication |
| B1163 | Gauge Control Module lost communication with Left Power Sliding Door Control Unit (PSDL message) | Gauge Control Module | Loss of Communication |
| B1164 | Gauge Control Module lost communication with Right Power Sliding Door Control Unit (PSDR message) | Gauge Control Module | Loss of Communication |
| B1168 | Gauge Control Module lost communication with PCM (Engine messages) | Gauge Control Module | Loss of Communication |
| B1169 | Gauge Control Module lost communication with PCM (A/T messages) | Gauge Control Module | Loss of Communication |
| B1170 | Gauge Control Module lost communication with VSA modulator-control unit (VSA messages) | Gauge Control Module | Loss of Communication |
| B1173 | Gauge Control Module lost communication with TPMS control unit (TPMS messages) | Gauge Control Module | Loss of Communication |
| B1175 | Fuel level sensor (Fuel gauge sending unit) circuit open | Gauge Control Module | Signal Error |
| B1176 | Fuel level sensor (Fuel gauge sending unit) circuit short | Gauge Control Module | Signal Error |
| B1177 | Abnormal battery voltage (7.5 V) | Gauge Control Module | Battery voltage |
| B1178 | F-CAN communication line error | Gauge Control Module | Loss of Communication |
| B1179 | Gauge Control Module lost communication with Electrical Compass Unit | Gauge Control Module | Loss of Communication |
| B1187 | Gauge Control Module lost communication with SRS Unit (SRS message) | Gauge Control Module | Loss of Communication |
| B1200 | Communication bus line error | Front Climate Control Unit | Loss of communication |
| A/C Control Panel | |||
| B1202 | Climate control unit internal error | Front Climate Control Unit | Internal error |
| A/C Control Panel | Internal error | ||
| B1205 | Climate control unit lost communication with gauge control module (VSP/NE message) | Front Climate Control Unit | Loss of communication |
| A/C Control Panel | Loss of communication | ||
| B1206 | Climate control unit lost communication with gauge control module (ECT message) | Front Climate Control Unit | Loss of communication |
| A/C Control Panel | Loss of communication | ||
| B1207 | Climate control unit lost communication with gauge control module (ILLUMI message) | Front Climate Control Unit | Loss of communication |
| A/C Control Panel | Loss of communication | ||
| B1221 | An open in the rear mode control motor circuit | Rear Climate Control Unit | Signal error |
| A/C control panel | Signal Error | ||
| B1222 | A short in the rear mode control motor circuit | Rear Climate Control Unit | Signal error |
| B1223 | A problem in the rear blower motor circuit | Rear Climate Control Unit | Signal Error |
| A/C control panel | Signal Error | ||
| B1224 | A short in the rear in-car temperature sensor circuit | Rear Climate Control Unit | Signal Error |
| B1225 | An open in the in-car temperature sensor circuit | Front Climate Control Unit | Signal Error |
| B1226 | A short in the in-car temperature sensor circuit | Front Climate Control Unit | Signal Error |
| B1227 | An open in the outside air temperature sensor circuit | Front Climate Control Unit | Signal Error |
| B1228 | A short in the outside air temperature sensor circuit | Front Climate Control Unit | Signal Error |
| B1229 | An open in the sunlight sensor circuit | Front Climate Control Unit | Signal Error |
| B1230 | A short in the sunlight sensor circuit | Front Climate Control Unit | Signal Error |
| B1231 | An open in the evaporator temperature sensor circuit | Front Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1232 | A short in the evaporator temperature sensor circuit | Front Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1233 | An open in the driver's air mix control motor circuit | Front Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1234 | A short in the driver's air mix control motor circuit | Front Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1235 | A problem in the driver's air mix control linkage, doors, or motor | Front Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1236 | An open in the passenger's air mix control motor circuit | Front Climate Control Unit | Signal Error |
| B1237 | A short in the passenger's air mix control motor circuit | Front Climate Control Unit | Signal Error |
| B1238 | A problem in the passenger's air mix control linkage, doors, or motor | Front Climate Control Unit | Signal Error |
| B1239 | An open or short in the mode control motor circuit | Front Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1240 | A problem in the mode control linkage, doors, or motor | Front Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1241 | A problem in the blower motor circuit | Front Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1244 | An open in the rear air mix control motor circuit | Rear Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1245 | A short in the rear air mix control motor circuit | Rear Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1246 | A problem in the rear air mix control linkage, doors, or motor | Rear Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1247 | An open or short in the rear mode control motor circuit | A/C Control Panel | Signal Error |
| B1248 | A problem in the rear mode control linkage, doors, or motor | Rear Climate Control Unit | Signal Error |
| A/C Control Panel | Signal Error | ||
| B1249 | An open in the rear in-car temperature sensor circuit | Rear Climate Control Unit | Signal Error |
| B1250 | Communication bus line error | Combination Switch Control Unit | Loss of Communication |
| B1255 | Combination Switch Control Unit lost communication with MICU | Combination Switch Control Unit | Loss of Communication |
| B1275 | Headlight switch OFF position circuit malfunction | Combination Switch Control Unit | Signal Error |
| B1276 | Headlight switch parking (SMALL) position circuit malfunction | Combination Switch Control Unit | Signal Error |
| B1277 | Headlight switch AUTO position circuit malfunction | Combination Switch Control Unit | Signal Error |
| B1278 | Headlight switch ON position circuit malfunction | Combination Switch Control Unit | Signal Error |
| B1279 | Headlight switch dimmer position circuit malfunction | Combination Switch Control Unit | Signal Error |
| B1280 | Turn signal switch circuit malfunction | Combination Switch Control Unit | Signal Error |
| B1281 | Windshield wiper switch MIST position circuit malfunction | Combination Switch Control Unit | Signal Error |
| B1282 | Windshield wiper switch INT (AUTO) position circuit malfunction | Combination Switch Control Unit | Signal Error |
| B1283 | Windshield wiper switch LOW position circuit malfunction | Combination Switch Control Unit | Signal Error |
| B1284 | Windshield wiper switch HIGH position circuit malfunction | Combination Switch Control Unit | Signal Error |
| B1350 | Communication bus line error | Power Tailgate Control Unit | Loss of Communication |
| B1352 | Power tailgate control unit EEPROM error | Power Tailgate Control Unit | Internal error |
| B1355 | Power tailgate control unit lost communication with MICU | Power Tailgate Control Unit | Loss of Communication |
| B1356 | Power tailgate control unit lost communication with Door Multiplex Control Unit (door lock switch message) | Power Tailgate Control Unit | Loss of Communication |
| B1357 | Power tailgate control unit lost communication with Gauge Control Module (VSP/NE message) | Power Tailgate Control Unit | Loss of Communication |
| B1358 | Power tailgate control unit lost communication with MICU passenger's door lock switch (ASLOCKSW message) | Power Tailgate Control Unit | Loss of Communication |
| B1359 | Power tailgate control unit lost communication with Gauge Control Module (A/T message) | Power Tailgate Control Unit | Loss of Communication |
| B1375 | Dashboard power tailgate switch circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1376 | Tailgate outer handle switch circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1377 | Power tailgate inside switch circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1378 | Power tailgate right pinch sensor circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1379 | Power tailgate left pinch sensor circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1380 | Tailgate closer unit neutral switch circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1381 | Tailgate closer unit release switch circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1382 | Tailgate closer unit full latch switch circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1383 | Tailgate closer unit ratchet switch circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1384 | Tailgate closer unit half latch switch circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1386 | Power tailgate sensor pulse A circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1387 | Power tailgate sensor pulse B circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1388 | Power tailgate drive motor circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1389 | Power tailgate motor clutch circuit malfunction | Power Tailgate Control Unit | Signal Error |
| B1390 | Power tailgate closer motor function error | Power Tailgate Control Unit | Signal Error |
| B1550 | Communication bus line error | Automatic Lighting Control Unit | Loss of Communication |
| B1555 | Automatic Lighting Control Unit lost communication with Combination Switch Control Unit (AUTOLT message) | Automatic Lighting Control Unit | Loss of Communication |
| B1556 | Automatic Lighting Control Unit lost communication with MICU (MICU message) | Automatic Lighting Control Unit | Loss of Communication |
| B1750 | Communication bus line error | HandsFreeLink Control Unit | Loss of Communication |
| B1775 | Microphone Input/Output Short to Power/ Open | HandsFreeLink Control Unit | Signal Error |
| B1776 | Microphone Input/Output Short to Ground/Open | HandsFreeLink Control Unit | Signal Error |
| B1779 | HFL Switch (Pick Up/Hang Up Switch) circuit Open/Short | HandsFreeLink Control Unit | Signal Error |
| B1780 | HFL Switch (Pick Up/Hang Up Switch) circuit Short | HandsFreeLink Control Unit | Signal Error |
| B1792 | HandsFreeLink Control Unit Internal Error | HandsFreeLink Control Unit | Signal Error |
| B1800 | Communication bus line error | Power Seat Control Unit | Loss of Communication |
| B1802 | Power Seat Control Unit EEPROM error | Power Seat Control Unit | Internal Error |
| B1805 | Power Seat Control Unit lost communication with Gauge Control Module (VSP/NE message) | Power Seat Control Unit | Loss of Communication |
| B1806 | Power Seat Control Unit lost communication with MICU (MICU massage) | Power Seat Control Unit | Loss of Communication |
| B1807 | Power Seat Control Unit lost communication with MICU (door switch message) | Power Seat Control Unit | Loss of Communication |
| B1808 | Power Seat Control Unit lost communication with Gauge Control Module (A/T message) | Power Seat Control Unit | Loss of Communication |
| B1825 | Power seat slide motor pulse error | Power Seat Control Unit | Signal Error |
| B1826 | Power seat front up-down motor pulse error | Power Seat Control Unit | Signal Error |
| B1827 | Power seat rear up-down motor pulse error | Power Seat Control Unit | Signal Error |
| B1828 | Power seat recline motor pulse error | Power Seat Control Unit | Signal Error |
| B1829 | A/T P signal and VSS signal mismatch | Power Seat Control Unit | Signal Error |
| B1830 | Left mirror position sensor malfunction | Power Seat Control Unit | Signal Error |
| B1832 | Right mirror position sensor malfunction | Power Seat Control Unit | Signal Error |
| B1836 | Power seat position sensor circuit short | Power Seat Control Unit | Signal Error |
| B1837 | Driving position memory recall timeout | Power Seat Control Unit | Signal Error |
| B1843 | Power Seat Control Unit lost communication with Power Mirror Control Unit (UART line) | Power Seat Control Unit | Loss of Communication |
| B1844 | Power seat slide switch circuit malfunction | Power Seat Control Unit | Signal Error |
| B1845 | Power seat recline switch circuit malfunction | Power Seat Control Unit | Signal Error |
| B1846 | Power seat front up-down switch circuit malfunction | Power Seat Control Unit | Signal Error |
| B1847 | Power seat rear up-down switch circuit malfunction | Power Seat Control Unit | Signal Error |
| B1950 | Communication bus line error | MICU-Rear Junction Box | Loss of Communication |
| B1955 | MICU-Rear Junction Box lost communication with MICU (MICU message) | MICU-Rear Junction Box | Loss of Communication |
| B1956 | MICU-Rear Junction Box lost communication with Gauge Control Module (A/T message) | MICU-Rear Junction Box | Loss of Communication |
| B1957 | MICU-Rear Junction Box lost communication with Combination Switch Control Unit (headlight switch message) | MICU-Rear Junction Box | Loss of Communication |
| B1958 | MICU-Rear Junction Box lost communication with Combination Switch Control Unit (wiper switch message) | MICU-Rear Junction Box | Loss of Communication |
| B1959 | MICU-Rear Junction Box lost communication with Relay Control Module (R/M message) | MICU-Rear Junction Box | Loss of Communication |
| B1960 | MICU-Rear Junction Box lost communication with Climate Control Unit (A/C message) | MICU-Rear Junction Box | Loss of Communication |
| B2000 | Communication bus line error | Left Power Sliding Door Control Unit | Loss of Communication |
| B2002 | Left Power Sliding Door Control Unit EEPROM error | Left Power Sliding Door Control Unit | Internal Error |
| B2005 | Left Power Sliding Door Control Unit lost communication with MICU | Left Power Sliding Door Control Unit | Loss of Communication |
| B2007 | Left Power Sliding Door Control Unit lost communication with Rear Junction Box Control Unit (RJU message) | Left Power Sliding Door Control Unit | Loss of Communication |
| B2008 | Left Power Sliding Door Control Unit lost communication with MICU (ASLOCKSW message) | Left Power Sliding Door Control Unit | Loss of Communication |
| B2010 | Left Power Sliding Door Control Unit lost communication with Gauge Control Module (VSP/NE message) | Left Power Sliding Door Control Unit | Loss of Communication |
| B2011 | Left Power Sliding Door Control Unit lost communication with Gauge Control Module (A/T message) | Left Power Sliding Door Control Unit | Loss of Communication |
| B2025 | Left power sliding door main switch (open side) signal error | Left Power Sliding Door Control Unit | Signal Error |
| B2026 | Left power sliding door main switch (close side) signal error | Left Power Sliding Door Control Unit | Signal Error |
| B2027 | Left power sliding door remote control switch 1 signal error | Left Power Sliding Door Control Unit | Signal Error |
| B2028 | Left power sliding door remote control switch 2 signal error | Left Power Sliding Door Control Unit | Signal Error |
| B2029 | Left power sliding door remote control switch 3 signal error | Left Power Sliding Door Control Unit | Signal Error |
| B2030 | Left power sliding door pinch sensor signal error | Left Power Sliding Door Control Unit | Signal Error |
| B2031 | Left power slide motor pulse (SLSE1) signal error | Left Power Sliding Door Control Unit | Signal Error |
| B2032 | Left power slide motor pulse (SLSE2) signal error | Left Power Sliding Door Control Unit | Signal Error |
| B2033 | Left power slide motor circuit malfunction | Left Power Sliding Door Control Unit | Signal Error |
| B2034 | Left power slide motor electromagnetic clutch circuit malfunction | Left Power Sliding Door Control Unit | Signal Error |
| B2035 | Left power sliding door half latch switch circuit short | Left Power Sliding Door Control Unit | Signal Error |
| B2036 | Left power sliding door full latch switch circuit short | Left Power Sliding Door Control Unit | Signal Error |
| B2037 | Left power sliding door ratchet switch circuit short | Left Power Sliding Door Control Unit | Signal Error |
| B2038 | Left power sliding door base position switch circuit open/short | Left Power Sliding Door Control Unit | Signal Error |
| B2039 | Left power sliding door switch open/ close signal input error (input at the same time) | Left Power Sliding Door Control Unit | Signal Error |
| B2040 | Left power slide motor malfunction | Left Power Sliding Door Control Unit | Signal Error |
| B2041 | Left power slide motor pulse (SLSE1/ SLSE2) error | Left Power Sliding Door Control Unit | Signal Error |
| B2050 | Communication bus line error | Right Power Sliding Door Control Unit | Loss of Communication |
| B2052 | Right Power Sliding Door Control Unit EEPROM error | Right Power Sliding Door Control Unit | Internal Error |
| B2055 | Right Power Sliding Door Control Unit lost communication with MICU | Right Power Sliding Door Control Unit | Loss of Communication |
| B2058 | Right Power Sliding Door Control Unit lost communication with MICU (ASLOCKSW message) | Right Power Sliding Door Control Unit | Loss of Communication |
| B2059 | Right Power Sliding Door Control Unit lost communication with Left Power Sliding Door Control Unit (PSD message) | Right Power Sliding Door Control Unit | Loss of Communication |
| B2060 | Right Power Sliding Door Control Unit lost communication with Gauge Control Module (VSP/NE message) | Right Power Sliding Door Control Unit | Loss of Communication |
| B2061 | Right Power Sliding Door Control Unit lost communication with Gauge Control Module (A/T message) | Right Power Sliding Door Control Unit | Loss of Communication |
| B2075 | Right power sliding door switch (open side) signal error | Right Power Sliding Door Control Unit | Signal Error |
| B2076 | Right power sliding door switch (close side) signal error | Right Power Sliding Door Control Unit | Signal Error |
| B2077 | Right power sliding door remote control switch 1 signal error | Right Power Sliding Door Control Unit | Signal Error |
| B2078 | Right power sliding door remote control switch 2 signal error | Right Power Sliding Door Control Unit | Signal Error |
| B2079 | Right power sliding door remote control switch 3 signal error | Right Power Sliding Door Control Unit | Signal Error |
| B2080 | Right power sliding door pinch sensor signal error | Right Power Sliding Door Control Unit | Signal Error |
| B2081 | Right power slide motor pulse (SLSE1) signal error | Right Power Sliding Door Control Unit | Signal Error |
| B2082 | Right power slide motor pulse (SLSE2) signal error | Right Power Sliding Door Control Unit | Signal Error |
| B2083 | Right power slide motor circuit malfunction | Right Power Sliding Door Control Unit | Signal Error |
| B2084 | Right power slide motor electromagnetic clutch circuit malfunction | Right Power Sliding Door Control Unit | Signal Error |
| B2085 | Right power sliding door half latch switch circuit short | Right Power Sliding Door Control Unit | Signal Error |
| B2086 | Right power sliding door full latch switch circuit short | Right Power Sliding Door Control Unit | Signal Error |
| B2087 | Right power sliding door ratchet switch circuit short | Right Power Sliding Door Control Unit | Signal Error |
| B2088 | Right power sliding door base position switch circuit open/short | Right Power Sliding Door Control Unit | Signal Error |
| B2089 | Right power sliding door switch open/ close signal input error (input at the same time) | Right Power Sliding Door Control Unit | Signal Error |
| B2090 | Right power slide motor malfunction | Right Power Sliding Door Control Unit | Signal Error |
| B2091 | Right power slide motor pulse (SLSE1/ SLSE2) error | Right Power Sliding Door Control Unit | Signal Error |