LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2001 >> RX 300 AWD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Multiplex Control
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Multiplex Control

MULTIPLEX DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description
B1211/11 Driver's Door ECU To Body ECU Communication
B1212/12 Passenger's Front Door ECU To Body ECU Communication
B1214/14 Door System Bus Communication Circuit Short To Power
B1215/15 Door System Bus Communication Circuit Short To Ground
B1216/16 Right Rear Door ECU To Body ECU Communication
B1217/17 Left Rear Door ECU To Body ECU Communication
B1221/21 ower Window Master Switch Circuit
B1222/22 Driver's Door Lock Control Switch Circuit
B1223/23 Passenger's Front Window Switch Circuit
B1224/24 Passenger's Door Lock Control Switch Circuit
B1225/25 Right Rear Window Switch Circuit
B1226/26 Left Rear Window Switch Circuit
B1231/31 Driver's Jam Protection Limit Switch Circuit
B1232/32 Driver's Jam Protection Pulse Switch Circuit
B1233/33 Passenger's Front Jam Protection Limit Switch Circuit
B1234/34 Passenger's Front Jam Protection Pulse Switch Circuit
B1235/35 Right Rear Jam Protection Limit Switch Circuit
B1236/36 Right Rear Jam Protection Pulse Switch Circuit
B1237/37 Left Rear Jam Protection Limit Switch Circuit
B1238/38 Left Rear Jam Protection Pulse Switch Circuit
B1241/41 Body ECU Switch Circuit Diagnosis
B1242/42 Wireless Door Lock Tuner Circuit Malfunction
B1244/44 Light Sensor Circuit Malfunction
B1256/56 Instrument Control Panel Circuit Diagnosis
B1261/61 ECM To Body ECU Communication
B1272/72 Memory Power Seat ECU To Body ECU Communication
B1273/73 Sliding Roof Control ECU To Body ECU Communication
B1275/75 Accessory Bus Buffer To Body ECU Communication
B1276/76 A/C And Combination Meter Integrated ECU To Body ECU Communication
B1277/77 Instrument Control Panel To Body ECU Communication