Section 341 (Multiplex Communication System - Diagnostics)
WARNING: This page is about a different car, the 2003 Toyota Avalon. 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 Code Chart
- Parts Location
- Terminals Of Ecu
- Circuit Inspection
- Diagnostic Trouble Code Definitions
- 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 B1221/21: Power window switch circuit on driver door; DTC B1222/22: Door lock switch circuit on driver door; DTC B1223/23: Power window switch circuit on passenger door; DTC B1224/24: Door lock switch circuit on passenger door; DTC B1241/41: Body ECU switch circuit diagnosis
- DTC B1231/31: Jam protection limit switch circuit on driver door
- DTC B1242/42: Wireless door lock receiver circuit malfunction
- DTC B1243/43: GSW terminal circuit malfunction
- DTC B1244/44: Light sensor circuit malfunction
- DTC B1251/51: Power mirror control switch communication stop
- DTC B1269/69: Theft deterrent ECU communication stop
- DTC B1272/72: Power seat ECU communication stop (w/Seat memory vehicle only)