Diagnostic Trouble Codes
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.
NOTE:
- DTC 71 are not output through open door warning light on meter because of system itself.
- When some of the DTC 14, 15 is output, the DTC of other ECU communication stop is also output. In this case, please repair DTC 14, 15 first. The following shows DTCs which are output when +B or GND short occurs on communication bus.
- DTC 21-24, 51 and 52 does not mean switch abnormal but notifies how switch works.
If DTC is not output when operating switch, it means failure of switch contact.
If DTC is output when not opening switch, it means sticking switch.
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table below (Perform the procedure given for that circuit).
DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Description |
|---|---|
| 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 |