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Diagnostic Trouble Code Chart

If a malfunction code is displayed during DTC check, check the circuit corresponding to the code in the table below (Proceed to the page given for the circuit).

DIAGNOSTIC TROUBLE CODE CHART

DTC No. Detection Item Trouble Area
B1211 Driver door ECU communication stop
  • Wire harness
  • Driver door ECU
B1212 Passenger door ECU communication stop
  • Wire harness
  • Passenger door ECU
B1213 Tilt and telescopic ECU communication stop
  • Wire harness
  • Tilt and telescopic ECU
B1214 B1215 Door system communication bus malfunction (+B short)
  • Wire harness
  • ECU (Door system bus)
Door system communication bus malfunction (GND short)
B1216 Rear right door ECU communication stop
  • Wire harness
  • Rear door RH ECU
B1217 Rear left door ECU communication stop
  • Wire harness
  • Rear door LH ECU
(1)B1219 Rear seat switch communication stop
  • Wire harness
  • Rear seat switch
B1248 AVC-LAN communication impossible
  • Wire harness
  • ECU (AVC-LAN system bus)
B1261 Engine ECU communication stop
  • Wire harness
  • ECM
B1262 A/C ECU communication stop
  • Wire harness
  • A/C ECU
B1263 Luggage room junction block ECU communication stop
  • Wire harness
  • Luggage room junction block ECU
B1266 B1267 Instrument panel system communication bus malfunction (+B short)
  • Wire harness
  • ECU (Instrument system bus)
Instrument panel system communication bus malfunction (GND short)
B1269 Theft deterrent ECU communication stop
  • Wire harness
  • Theft deterrent ECU
B1271 Combination meter ECU communication stop
  • Wire harness
  • Combination meter ECU
(1)B1272 Power seat ECU communication stop
  • Wire harness
  • Driver seat ECU
(1)B1273 Sliding roof ECU communication stop
  • Wire harness
  • Moon roof control ECU
(1)B1275 Accessory bus buffer communication stop
  • Wire harness
  • Accessory bus buffer ECU
(1)B1277 Center cluster integration panel communication stop
  • Wire harness
  • Center cluster integration panel
B1278 Combination switch ECU communication stop
  • Wire harness
  • Combination switch ECU
(1)B1279 Rain sensor communication stop
  • Wire harness
  • Rain sensor
B1281 Airbag ECU communication stop
  • Wire harness
  • Airbag sensor assembly
B1282 Skid control ECU communication stop
  • Wire harness
  • Skid control ECU
B1283 Driver side junction block ECU communication stop
  • Wire harness
  • Driver side junction block ECU
B1284 Passenger side junction block ECU communication stop
  • Wire harness
  • Passenger side junction block ECU
B1285 Steering pad switch communication stop
  • Wire harness
  • Steering pad switch
B1291 B1292 Light control system communication bus malfunction (+B short)
  • Wire harness
  • ECU (Light control system bus)
Light control system communication bus malfunction (GND short)
B1294 Immobiliser ECU communication stop
  • Wire harness
  • Transponder key ECU
B1296 Front light ECU communication stop
  • Wire harness
  • Front light ECU
(1)B1297 Clearance sonar ECU communication stop
  • Wire harness
  • Clearance sonar ECU
(1)B1298 Rear right seat ECU communication stop
  • Wire harness
  • Rear RH seat ECU
(1)B1299 Rear left seat ECU communication stop
  • Wire harness
  • Rear LH seat ECU
(1) Optional setting When DTC of "+B or GND short malfunction of communication bus (such as B1214, B1215 etc.)" and "communication stop (such as B1211, B1212 etc.)" is detected simultaneously, please repair DTC of "+B or GND short malfunction of communication bus first.
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