LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2004 >> IS 300 Base, Automatic >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Multiplex Communication System DTCS
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Multiplex Communication System DTCS

MULTIPLEX COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description
B1211/11 Power window master switch ECU communication stop
B1214/14, B1215/15 Communication bus malfunction (+B short)/(GND short)
B1241/41 Body ECU switch circuit diagnosis
B1242/42 Wireless door lock tuner circuit malfunction
B1244/44 Light sensor circuit malfunction
B1261/61 ECM communication stop
B1262/62 A/C ECU communication stop
B1269/69 Theft deterrent ECU communication stop
B1271/71 Combinations meter ECU communication stop