LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2003 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 357 (Multiplex Communication System - Diagnostics) >> Circuit Inspection >> Diagnostic Trouble Code Definitions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC Description
DTC B1211/11  Driver door ECU communication stop
DTC B1212/12  Passenger door ECU communication stop
DTC B1214/14  Communication bus malfunction (+B short)
DTC B1215/15  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 B1231/31  Jam protection limit switch circuit on driver door
DTC B1232/32  Jam protection pulse switch circuit on driver door
DTC B1233/33  Jam protection limit switch circuit on passenger door
DTC B1234/34  Jam protection pulse switch circuit on passenger 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