Section 324 (Multiplex Communication System - Diagnostics)
WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
- How To Proceed With Troubleshooting
- Customer Problem Analysis Check
- Pre-Check
- Diagnostic Trouble Codes
- Parts Location
- Terminals Of Ecu
- Circuit Inspection
- DTC B1211/11: Driver Door Ecu Communication Stop
- DTC B1212/12: Passenger Door Ecu Communication Stop
- DTC B1214/14, B1215/15: Communication Bus Malfunction (+B Short/GND Short)
- DTC B1221/21, B1222/22, B1223/23, B1224/24: Power Window Switch Circuit On Door & Door Lock Switch Circuit On Door
- DTC B1231/31, B1233/33: Jam Protection Limit Switch Circuit On Door
- DTC B1232/32, B1234/34: Jam Protection Pulse Switch Circuit On Door
- DTC B1241/41: Body Ecu Switch Circuit Diagnosis
- DTC B1242/42: Wireless Door Lock Tuner Circuit Malfunction
- DTC B1243/43: GSW Terminal Circuit Malfunction
- DTC B1244/44: Light Sensor Circuit Malfunction
- DTC B1271/71: Combination Meter Ecu Communication Stop
- DTC B1273/73: Sliding Roof Ecu Communication Stop (W/Sliding Roof Vehicle Only)
- DTC B1287/87: Back Door Ecu Communication Stop