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DTC Troubleshooting Index

NOTE: Check the ECM/PCM for DTCs and troubleshoot ECM/PCM (see GENERAL TROUBLESHOOTING INFORMATION ) or F-CAN loss of communication errors first, then record all DTCs, and sort them by DTC type using the DTC troubleshooting index, then troubleshoot the DTC(s) in this order.

MICU 

DTC DESCRIPTION

DTC Description DTC type
B1000  Communication bus line error (BUS-OFF) Loss of communication
B1001  MICU internal error (CPU error) Internal error
B1002  MICU internal error (EEPROM error) Internal error
B1008  MICU lost communication with gauge control module (A/T message) Loss of communication
B1011  MICU lost communication with gauge control module (VSP/NE message) Loss of communication
B1026 Front passenger's door lock switch LOCK/UNLOCK signal error Signal error
B1032  MICU lost communication with the SRS unit (CDS message)
CDS (Collision detection signal) input circuit malfunction
Signal error
B1036  IG1 line input error Signal error
B1077 Windshield wiper (As) signal error Signal error
B1078 Daytime running lights signal error (Canada) Signal error
B1127 Driver's door key cylinder switch signal error Signal error
B1128 Driver's door lock switch signal error Signal error
B1129 Driver's door lock knob switch signal error Signal error
B1275 Combination light switch OFF position circuit malfunction ('07-09 models) Signal error
B1276 Combination light switch parking (SMALL) position circuit malfunction ('07-09 models) Signal error
B1278 Headlight switch ON position circuit malfunction ('07-09 models) Signal error
B1279 Headlight switch DIMMER position circuit malfunction ('07-09 models) Signal error
B1280 Turn signal switch circuit malfunction ('07-09 models) Signal error
B1281 Windshield wiper switch MIST circuit malfunction ('07-09) models Signal error
B1282 Windshield wiper switch INT circuit malfunction ('07-09) models Signal error
B1283 Windshield wiper switch LOW circuit malfunction ('07-09) models Signal error
B1284 Windshield wiper switch HIGH circuit malfunction ('07-09) models Signal error

Gauge Control Module 

DTC DESCRIPTION

DTC Description DTC type
B1150  Communication bus line error (BUS-OFF) Loss of communication
B1152 Gauge control module internal error (EEPROM error) Internal error
B1155 Gauge control module lost communication with the MICU (Headlight switch message) Loss of communication
B1156 Gauge control module lost communication with the MICU (Wiper switch message) Loss of communication
DTC B1157 Gauge control module lost communication with the MICU (MICU message) Loss of communication
B1159 Gauge control module lost communication with the MICU (DOORSW message) Loss of communication
B1160 Gauge control module lost communication with the MICU (DRLOCKSW message) Loss of communication
B1168 Gauge control module lost communication with the ECM/PCM (Engine messages) Loss of communication
B1169 Gauge control module lost communication with the PCM (A/T message) Loss of communication
B1170 Gauge control module lost communication with ABS/VSA modulator-control unit (ABS/VSA message) Loss of communication
B1175 Fuel level sensor (Fuel gauge sending unit) circuit open Signal error
B1176 Fuel level sensor (Fuel gauge sending unit) circuit short Signal error
B1177 Battery voltage abnormal ('06 model) Battery voltage
B1178 F-CAN communication line error Loss of communication
B1183 Gauge control module lost communication with EPS control unit (EPS message) Loss of communication
B1187 Gauge control module lost communication with the SRS unit (SRS message) Loss of communication
B1188 Gauge control module lost communication with the MICU (RM message) Loss of communication

Climate Control Unit 

DTC DESCRIPTION

DTC Description DTC type
B1200  Communication bus line error (BUS-OFF) Loss of communication
B1202 Climate control unit internal error (EEPROM error) Internal error
B1205 Climate control unit lost communication with the gauge control module (VSP/NE message) Loss of communication
B1206 Climate control unit lost communication with the gauge control module (ECT message) Loss of communication
B1207 Climate control unit lost communication with the gauge control module (ILLUMI message) Loss of communication
B1220 Recirculation control motor circuit short Signal error
B1225 In-car temperature sensor circuit open Signal error
B1226 In-car temperature sensor circuit short Signal error
B1227 Outside air temperature sensor circuit open Signal error
B1228 Outside air temperature sensor circuit short Signal error
B1229 Sunlight sensor circuit open Signal error
B1230 Sunlight sensor circuit short Signal error
B1231 Evaporator temperature sensor circuit open Signal error
B1232 Evaporator temperature sensor circuit short Signal error
B1233 Air mix control motor circuit open Signal error
B1234 Air mix control motor circuit short Signal error
B1235 Air mix control motor stuck Signal error
B1239 Mode control motor circuit open or short Signal error
B1240 Mode control motor, linkage, door malfunction Signal error
B1241 Blower motor circuit malfunction Signal error
B2983 Recirculation control motor, linkage, door malfunction Signal error
B2986 Recirculation control motor circuit open Signal error

HandsFreeLink Control Unit 

DTC DESCRIPTION

DTC Description DTC type
B1750 Communication bus line error (BUS-OFF) Loss of communication
B1775 Microphone input/output short to power/open Signal error
B1776 Microphone input/output short to ground/open Signal error
B1779 HFL switch (HFL talk/HFL back buttons) circuit open/short Signal error
B1780 HFL switch (HFL talk/HFL back buttons) circuit short Signal error
B1792 HandsFreeLink control unit internal error Internal error

Immobilizer-Keyless Control Unit 

DTC DESCRIPTION

DTC Description DTC type
B1900  Communication bus line error (BUS-OFF) Loss of communication
B1905 Immobilizer-keyless control unit lost communication with the MICU (DRLOCKSW message) Loss of communication
B1906 Immobilizer-keyless control unit lost communication with the gauge control module (A/T message) Loss of communication
B1925 Ignition key switch signal error Signal error