Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2004GX 470REPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXMULTIPLEX COMMUNICATION SYSTEM
2004 Lexus GX 470
Multiplex Communication System
2004 Lexus GX 470SECTION Multiplex Communication System
MULTIPLEX COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| B1211 | Driver Door ECU Communication Stop |
| B1213 | Tilt and Telescopic ECU Communication Stop |
| B1214 | Door System Communication Bus Malfunction (+B Short) |
| B1215 | Door System Communication Bus Malfunction (GND Short) |
| B1218 | Body No. 2 ECU Communication Stop |
| B1245 | Wiper ECU Communication Stop |
| B1269 | Theft Deterrent ECU Communication Stop |
| B1272 | Power Seat ECU Communication Stop |
| B1275 | Accessory Bus Buffer Communication Stop |
| B1276 | A/C & Meter ECU (Mirror) Communication Stop |
| B1279 | Rain Sensor Communication Stop |
| B1281 | Airbag ECU Communication Stop |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.