Check power window master switch. Power window master switch is part of driver's door ECU. To check driver's door ECU, go to appropriate wiring diagram in POWER DOOR LOCKS, TRUNK LID & FUEL DOOR RELEASE article.
Home/Lexus/RX/Lexus RX I (1997-2003)/Repair manual/Communication Devices/DTC B1221/21: POWER WINDOW MASTER SWITCH CIRCUIT
Contents
Wiring diagrams Section: Communication Devices- Multiplex Control Systems: Overview
- Multiplex Control Systems: Diagnosis
- Multiplex Control Systems: Other
- DTC B1211/11: DRIVER'S DOOR ECU TO BODY ECU COMMUNICATION
- DTC B1212/12: PASSENGER'S FRONT DOOR ECU TO BODY ECU COMMUNICATION
- DTC B1214/14 & DTC B1215/15: DOOR SYSTEM BUS COMMUNICATION CIRCUIT SHORT
- DTC B1216/16: RIGHT REAR DOOR ECU TO BODY ECU COMMUNICATION
- DTC B1217/17: LEFT REAR DOOR ECU TO BODY ECU COMMUNICATION
- DTC B1221/21: POWER WINDOW MASTER SWITCH CIRCUIT
- DTC B1222/22: DRIVER'S DOOR LOCK CONTROL SWITCH CIRCUIT
- DTC B1223/23: PASSENGER'S FRONT WINDOW SWITCH CIRCUIT
- DTC B1224/24: PASSENGER'S DOOR LOCK CONTROL SWITCH CIRCUIT
- DTC B1225/25: RIGHT REAR WINDOW SWITCH CIRCUIT
- DTC B1226/26: LEFT REAR WINDOW SWITCH CIRCUIT
- DTC B1231/31: DRIVER'S JAM PROTECTION LIMIT SWITCH CIRCUIT
- DTC B1232/32: DRIVER'S JAM PROTECTION PULSE SWITCH CIRCUIT
- DTC B1233/33: PASSENGER'S FRONT JAM PROTECTION LIMIT SWITCH CIRCUIT
- DTC B1234/34: PASSENGER'S FRONT JAM PROTECTION PULSE SWITCH CIRCUIT
- DTC B1235/35: RIGHT REAR JAM PROTECTION LIMIT SWITCH CIRCUIT
- DTC B1236/36: RIGHT REAR JAM PROTECTION PULSE SWITCH CIRCUIT
- DTC B1237/37: LEFT REAR JAM PROTECTION LIMIT SWITCH CIRCUIT
- DTC B1238/38: LEFT REAR JAM PROTECTION PULSE SWITCH CIRCUIT
- DTC B1241/41: BODY ECU SWITCH CIRCUIT DIAGNOSIS
- DTC B1242/42: WIRELESS DOOR LOCK TUNER CIRCUIT
- DTC B1244/44: LIGHT SENSOR CIRCUIT MALFUNCTION
- DTC B1256/56: INSTRUMENT CONTROL PANEL CIRCUIT DIAGNOSIS
- DTC B1261/61: ECM TO BODY ECU COMMUNICATION
- DTC B1272/72: MEMORY POWER SEAT ECU TO BODY ECU COMMUNICATION
- DTC B1273/73: NO COMMUNICATION BETWEEN SLIDING ROOF CONTROL ECU & BODY ECU
- DTC B1275/75: ACCESSORY BUS TO BODY ECU COMMUNICATION
- DTC B1276/76: A/C AND COMBINATION METER INTEGRATED ECU TO BODY ECU COMMUNICATION
- DTC B1277/77: NO COMMUNICATION BETWEEN INSTRUMENT CONTROL PANEL & BODY ECU
- Abbreviations
- Adjustments
- Airbag
- Antenna Systems
- Anti-Lock/traction Control
- Application
- Automatic HVAC System
- Automatic Trans
- Auxiliary Emission Control Systems
- Axle Shafts
- Basic Trouble Shooting
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- Cooling System (Mechanical)
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- Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)