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DTC Troubleshooting Index

WARNING: This page is about a different car, the 2008 Acura TSX, 2007 Acura TSX, 2006 Acura TSX, 2005 Acura TSX, and 2004 Acura TSX. However, it is still accessible from the selected car via links, so may be relevant.
DTC TROUBLESHOOTING INDEX

DTC Description ECU DTC type
B1000  Communication circuit error (BUS Off) MICU Loss of Communication
B1001  MICU Internal Error MICU Internal Error
B1002  MICU Internal 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
B1010  MICU lost communication with Door Multiplex Control Unit (panic message) MICU Loss of Communication
B1026 Passenger's door lock switch malfunction MICU Signal Error
B1050  Communication circuit error (BUS Off) 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
B1059 Relay Control Module lost communication with Door Multiplex Control Unit (panic 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 Module (headlight switch message) Relay Control Module Loss of Communication
B1063 Relay Control Module lost communication with Combination Switch Control Module (wiper switch message) Relay Control Module Loss of Communication
B1075 Headlight switch malfunction Relay Control Module Signal Error
B1076 Windshield wiper signal error Relay Control Module Signal Error
B1077 Wiper switch (As) malfunction Relay Control Module Signal Error
B1078 Daytime running lights malfunction Relay Control Module Signal Error
B1080  Power supply circuit (IG1 line) input error for Relay Control Module and MICU Relay Control Module Signal Error
B1100  Communication circuit error (BUS Off) Door Multiplex Control Unit Loss of Communication
B1102  Door Multiplex Control Unit Internal Error Door Multiplex Control Unit Internal Error
B1105 (1) Door Multiplex Control Unit lost communication with MICU (door switch message) Door Multiplex Control Unit Loss of communication
B1106 (1) Door Multiplex Control Unit lost communication with MICU (MICU message) Door Multiplex Control Unit Loss of communication
B1125 Driver's power window motor A pulse malfunction Door Multiplex Control Unit Signal Error
B1126 Driver's power window motor B pulse malfunction Door Multiplex Control Unit Signal Error
B1127 Driver's door lock key cylinder switch malfunction Door Multiplex Control Unit Signal Error
B1128 Driver's door lock switch malfunction Door Multiplex Control Unit Signal Error
B1129 Driver's door knob switch malfunction Door Multiplex Control Unit Signal Error
B1140 Driver's power window position detect circuit malfunction Door Multiplex Control Unit Signal Error
B1150  Communication circuit error (BUS Off) Gauge Control Module Loss of Communication
B1152 Gauge Control Module Internal Error Gauge Control Module Internal Error
B1155 Gauge Control Module lost communication with Combination Switch Control Module (headlight switch message) Gauge Control Module Loss of Communication
B1156 Gauge Control Module lost communication with Combination Switch Control Module (wiper switch message) Gauge Control Module Loss of Communication
(1) '05-08 models
DIAGNOSTIC TROUBLE CODES

DTC Description ECU DTC type
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
B1168  Gauge Control Module lost communication with ECM/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(2) Gauge Control Module lost communication with VSA Modulator-Control Unit (VSA messages) Gauge Control Module Loss of Communication
B1175(1) Fuel gauge sending unit signal malfunction (open/short) Gauge Control Module Signal Error
B1175(2) Open in the fuel gauge sending unit circuit Gauge Control Module Signal Error
B1176(2) Short in the fuel gauge sending unit circuit Gauge Control Module Signal Error
B1177 Abnormal battery voltage (7.5 V) Gauge Control Module Signal Error
B1178  F-CAN communication circuit error Gauge Control Module Loss of Communication
B1200  Communication circuit error (BUS Off) Climate Control Unit Loss of Communication
B1202 Climate Control Unit Internal Error Climate Control Unit Internal Error
B1205 Climate Control Unit lost communication with Gauge Control Module (VSP/NE message) Climate Control Unit Loss of Communication
B1206 Climate Control Unit lost communication with Gauge Control Module (ENGTEMP message) Climate Control Unit Loss of Communication
B1207 Climate Control Unit lost communication with Gauge Control Module (ILLUMI message) Climate Control Unit Loss of Communication
B1225 Open in the in-car temperature sensor circuit Climate Control Unit Signal Error
B1226 Short in the in-car temperature sensor circuit Climate Control Unit Signal Error
B1227 Open in the outside air temperature sensor circuit Climate Control Unit Signal Error
B1228 Short in the outside air temperature sensor circuit Climate Control Unit Signal Error
B1229 Open in the sunlight sensor circuit Climate Control Unit Signal Error
B1230 Short in the sunlight sensor circuit Climate Control Unit Signal Error
B1231 Open in the evaporator temperature sensor circuit Climate Control Unit Signal Error
B1232 Short in the evaporator temperature sensor circuit Climate Control Unit Signal Error
B1233 Open in the driver's air mix control motor circuit Climate Control Unit Signal Error
B1234 Short in the driver's air mix control motor circuit Climate Control Unit Signal Error
B1235 Problem in the driver's air mix control linkage, door, or motor Climate Control Unit Signal Error
B1236 Open in the passenger's air mix control motor circuit Climate Control Unit Signal Error
B1237 Short in the passenger's air mix control motor circuit Climate Control Unit Signal Error
B1238 Problem in the passenger's air mix control linkage, door, or motor Climate Control Unit Signal Error
B1239 Open or short in the mode control motor circuit Climate Control Unit Signal Error
B1240 Problem in the mode control linkage, doors, or motor Climate Control Unit Signal Error
B1241 Problem in the blower motor circuit Climate Control Unit Signal Error
B1250  Communication circuit error (BUS Off) Combination Switch Control Unit Loss of Communication
B1251  Combination Switch Control Unit internal error Combination Switch Control Unit Internal Error
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 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 Dimmer switch 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
B1750  Communication bus line error (BUS-OFF) 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 or HFL-voice control switch (HFL talk/HFL back buttons) circuit open/short HandsFreeLink Control Unit Signal Error
B1780 HFL-voice control switch (HFL talk/HFL back buttons) circuit short HandsFreeLink Control Unit Signal Error
B1792 HandsFreeLink control unit internal error HandsFreeLink Control Unit Internal Error
B1800  Communication bus line error (BUS off) 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(1) Power seat slide motor pulse error Power Seat Control Unit Signal Error
B1825(2) Power seat slide motor pulse error Power Seat Control Unit Signal Error
B1826(1) Power seat front up-down motor pulse error Power Seat Control Unit Signal Error
B1826(2) Power seat front up-down motor pulse error Power Seat Control Unit Signal Error
B1827(1) Power seat rear up-down motor pulse error Power Seat Control Unit Signal Error
B1827(2) Power seat rear up-down motor pulse error Power Seat Control Unit Signal Error
B1828(1) Power seat recline motor pulse error Power Seat Control Unit Signal Error
B1828(2) 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
B1836 Power seat position sensor circuit short Power Seat Control Unit Signal Error
B1837 Memory position calling timeout Power Seat Control Unit Signal Error
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
(1) '06 model
(2) '07-08 models
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