Diagnostic Trouble Code Chart
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
If a malfunction code is displayed during DTC check, check the circuit corresponding to the code in the table below.
DIAGNOSTIC TROUBLE CODE CHART
| DTC | Description |
|---|---|
| DTC B1211 | Driver door ECU communication stop |
| DTC B1212 | Passenger door ECU communication stop |
| DTC B1213 | Tilt and Telescopic ECU communication stop |
| DTC B1214, B1215 | Door system communication bus malfunction (+B short) |
| DTC 81216 | Rear right door ECU communication stop |
| DTC B1217 | Rear left door ECU communication stop |
| DTC B1219 | Rear seat switch communication stop |
| DTC B1248 | AVC-LAN communication impossible |
| DTC B1261 | ECM communication stop |
| DTC B1262 | A/C ECU communication stop |
| DTC B1263 | Luggage Room Junction Block ECU communication stop |
| DTC B1266, B1267 | Instrument panel system communication [| bus malfunction (+B short) |
| DTC B1269 | Theft deterrent ECU communication stop |
| DTC B1271 | Combination meter ECU communication stop |
| DTC B1272 | Power seat ECU communication stop |
| DTC B1273 | Sliding roof control ECU communication stop (w/ Sliding roof vehicle only) |
| DTC B1275 | Accessory Bus Buffer communication stop |
| DTC B1277 | Center Cluster Integration Panel ECU communication stop |
| DTC B1278 | Combination switch ECU communication stop |
| DTC B1279 | Rain sensor communication stop |
| DTC B1281 | Airbag ECU communication stop |
| DTC B1282 | Skid Control ECU communication stop |
| DTC B1283 | Driver side J/B ECU communication stop |
| DTC B1284 | Passenger side J/B ECU communication stop |
| DTC B1285 | Steering pad switch communication stop |
| DTC B1291, B1292 | Light system communication bus malfunction (+B short) |
| DTC B1294 | Immobilizer ECU communication stop |
| DTC B1296 | Front light ECU communication stop |
| DTC B1297 | Clearance sonar ECU communication stop |
| DTC B1298 | Rear RH seat ECU communication stop |
| DTC B1299 | Rear LH seat ECU communication stop |
DTC DETECTION ITEM
| DTC No. | Detection Item | Trouble Area | ||
|---|---|---|---|---|
| DTC B1211: DRIVER DOOR ECU COMMUNICATION STOP | Driver door ECU communication stop |
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| DTC B1212 PASSENGER DOOR ECU COMMUNICATION STOP | Passenger door ECU communication stop |
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| DTC B1213 TILT AND TELESCOPIC ECU COMMUNICATION STOP | Tilt and telescopic ECU communication stop |
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| DTC B1214 DOOR SYSTEM COMMUNICATION BUS MALFUNCTION (+B SHORT),DTC B1215 DOOR SYSTEM COMMUNICATION BUS MALFUNCTION (GND SHORT) | Door system communication bus malfunction (+B short) |
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| Door system communication bus malfunction (GND short) | ||||
| DTC 81216 REAR RIGHT DOOR ECU COMMUNICATION STOP | Rear right door ECU communication stop |
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| DTC B1217 REAR LEFT DOOR ECU COMMUNICATION STOP | Rear left door ECU communication stop |
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| (1)DTC B1219 REAR SEAT SWITCH COMMUNICATION STOP | Rear seat switch communication stop |
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| DTC B1248 AVC-LAN COMMUNICATION IMPOSSIBLE | AVC-LAN communication impossible |
|
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| DTC B1261 ECM COMMUNICATION STOP | Engine ECU communication stop |
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| DTC B1262 A/C ECU COMMUNICATION STOP | A/C ECU communication stop |
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| DTC B1263 LUGGAGE ROOM JUNCTION BLOCK ECU COMMUNICATION STOP | Luggage room junction block ECU communication stop |
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| DTC B1266 INSTRUMENT PANEL SYSTEM COMMUNICATION [| BUS MALFUNCTION (+B SHORT), DTC B1267 INSTRUMENT PANEL SYSTEM COMMUNICATION BUS MALFUNCTION (GND SHORT) | Instrument panel system communication bus malfunction (+B short) |
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| Instrument panel system communication bus malfunction (GND short) | ||||
| DTC B1269: THEFT DETERRENT ECU COMMUNICATION STOP | Theft deterrent ECU communication stop |
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| DTC B1271: COMBINATION METER ECU COMMUNICATION STOP | Combination meter ECU communication stop |
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| (1)DTC B1272: POWER SEAT ECU COMMUNICATION STOP | Power seat ECU communication stop |
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| (1)DTC B1273: SLIDING ROOF CONTROL ECU COMMUNICATION STOP (W/ SLIDING ROOF VEHICLE ONLY) | Sliding roof ECU communication stop |
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| (1)DTC B1275: ACCESSORY BUS BUFFER COMMUNICATION STOP | Accessory bus buffer communication stop |
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| (1)DTC B1277: CENTER CLUSTER INTEGRATION PANEL ECU COMMUNICATION STOP | Center cluster integration panel communication stop |
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| DTC B1278: COMBINATION SWITCH ECU COMMUNICATION STOP | Combination switch ECU communication stop |
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| (1)DTC B1279: RAIN SENSOR COMMUNICATION STOP | Rain sensor communication stop |
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| DTC B1281: AIRBAG ECU COMMUNICATION STOP | Airbag ECU communication stop |
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| DTC B1282: SKID CONTROL ECU COMMUNICATION STOP | Skid control ECU communication stop |
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| DTC B1283: DRIVER SIDE J/B ECU COMMUNICATION STOP | Driver side junction block ECU communication stop |
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| DTC B1284: PASSENGER SIDE J/B ECU COMMUNICATION STOP | Passenger side junction block ECU communication stop |
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| DTC B1285: STEERING PAD SWITCH COMMUNICATION STOP | Steering pad switch communication stop |
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| DTC B1291, B1292: LIGHT SYSTEM COMMUNICATION BUS MALFUNCTION (+B SHORT), LIGHT SYSTEM COMMUNICATION BUS MALFUNCTION (GND SHORT) | Light control system communication bus malfunction (+B short) |
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| Light control system communication bus malfunction (GND short) | ||||
| DTC B1294: IMMOBILIZER ECU COMMUNICATION STOP | Immobilizer ECU communication stop |
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| DTC B1296: FRONT LIGHT ECU COMMUNICATION STOP | Front light ECU communication stop |
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| (1)DTC B1297: CLEARANCE SONAR ECU COMMUNICATION STOP | Clearance sonar ECU communication stop |
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| (1)DTC B1298: REAR RH SEAT ECU COMMUNICATION STOP | Rear right seat ECU communication stop |
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| (1)DTC B1299: REAR LH SEAT ECU COMMUNICATION STOP | Rear left seat ECU communication stop |
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HINT:
- When DTC of "+B or GND short malfunction of communication bus (such as B1214, B1215 etc.)" and "communication stop (such as B1211, B1212 etc.)" is detected simultaneously, please repair DTC of "+B or GND short malfunction of communication bus first.