2005 Lexus RX 330 FWDFACTORY OEM SERVICE PROCEDURE

Multiplex Communication System DTCS

MULTIPLEX COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description
DTC B1205 HEADLAMP SWIVEL ECU COMMUNICATION STOP
DTC B1206 POWER WINDOW MASTER SWITCH COMMUNICATION STOP
DTC B1208 PASSENGER SIDE OUTER MIRROR ECU COMMUNICATION STOP
DTC B1209 DRIVER SIDE OUTER MIRROR COMMUNICATION STOP
DTC B1213 TILT AND TELESCOPIC ECU COMMUNICATION STOP
DTC B1214, B1215 DOOR SYSTEM COMMUNICATION BUS MALFUNCTION (+B SHORT)/(GND SHORT)
DTC B1245 WIPER ECU COMMUNICATION STOP
DTC B1261 ECM COMMUNICATION STOP
DTC B1262 A/C ECU COMMUNICATION STOP
DTC B1271 COMBINATION METER ECU COMMUNICATION STOP
DTC B1272 POWER SEAT ECU COMMUNICATION STOP
DTC B1273 SLIDING ROOF ECU COMMUNICATION STOP
DTC B1277 CENTER CLUSTER INTEGRATION SWITCH COMMUNICATION STOP
DTC B1279 RAIN SENSOR COMMUNICATION STOP
DTC B1281 AIRBAG ECU COMMUNICATION STOP
DTC B1287 BACK DOOR ECU COMMUNICATION STOP
DTC B1293 GATEWAY ECU (AVC-LAN) COMMUNICATION STOP
DTC B1294 IMMOBILIZER ECU COMMUNICATION STOP
Chapter Navigation
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.