Section 99 (Multiplex Communication System)
WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
- Description & Operation
- Component Locations
- Trouble Shooting
- Self-Diagnostic System
- Connector Identification
- Diagnostic Tests
- DTC B1211/11: Driver Door Ecu Communication Stop
- DTC B1212/12: Front Passenger Door Ecu Communication Stop
- DTC B1214/14: System Communication Bus Malfunction (+B Short) & DTC B1215/15: System Communication Bus Malfunction (GND Short)
- DTC B1216/16: Rear Right Door Ecu Communication Stop
- DTC B1217/17: Rear Left Door Ecu Communication Stop
- DTC B1221/21: Power Window Switch Circuit (Driver)
- DTC B1222/22: Door Lock Switch Circuit (Driver)
- DTC B1223/23: Power Window Switch Circuit (Passenger)
- DTC B1224/24: Door Lock Switch Circuit (Passenger)
- DTC B1225/25: Power Window Switch Circuit (Rear Right) & DTC B1226/26: Power Window Switch Circuit (Rear Left)
- DTC B1231/31: Jam Protection Limit Switch Circuit (Driver), DTC B1233/33: Jam Protection Limit Switch Circuit (Passenger), DTC B1235/35: Jam Protection Limit Switch Circuit (Rear Right) & DTC 1237/37: Jam Protection Limit Switch Circuit (Rear Left)
- DTC B1232/32: Jam Protection Pulse Switch Circuit (Driver), DTC B1234/34: Jam Protection Pulse Switch Circuit (Passenger), DTC B1236/36: Jam Protection Pulse Switch Circuit (Rear Right) & DTC 1238/38: Jam Protection Pulse Switch Circuit (Rear Left)
- DTC B1241/41: Body Ecu Switch Circuit Diagnosis
- DTC B1242/42: Wireless Door Lock Tuner Circuit Malfunction
- DTC B1244/44: Light Sensor Circuit Malfunction
- DTC B1256/56: Center Cluster Integration Panel Switch Circuit Diagnosis
- DTC B1261/61: ECM Communication Stop
- DTC B1272/72: Power Seat Ecu Communication Stop (W/ Seat Memory Only)
- DTC B1273/73: Moon Roof Ecu Communication Stop
- DTC B1275/75: Accessory Bus Buffer Communication Stop
- DTC B1276/76: A/C & Combination Meter Integrated Ecu Communication Stop
- DTC B1277/77: Center Cluster Integration Panel Communication Stop
- Removal & Installation
- Wiring Diagrams