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.
2006 Lexus RX 330 FWDFACTORY OEM SERVICE PROCEDURE
Multiplex Communication System DTCS
MULTIPLEX COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description | Proceed to |
|---|---|---|
| B1205 | AFS ECU Communication Stop | B1205 |
| B1206 | P/W Master Switch Communication Stop | B1206 |
| B1208 | Passenger Side Outer Mirror ECU | B1208 |
| B1209 | Driver Side Outer Mirror | B1209 |
| B1213 | Tilt and Telescopic ECU Communication Stop | B1213 |
| B1214 | Short to B+ in Door System Communication Bus Malfunction | B1214 |
| B1215 | Short to GND in Door System Communication Bus Malfunction | B1215 |
| B1245 | Wiper ECU Communication Stop | B1245 |
| B1261 | ECM Communication Stop | B1261 |
| B1262 | A/C ECU Communication Stop | B1262 |
| B1271 | Combination Meter ECU Communication Stop | B1271 |
| B1272 | Power Seat ECU Communication Stop | B1272 |
| B1273 | Sliding Roof ECU Communication Stop | B1273 |
| B1277 | Center Cluster Integration Panel ECU Communication Stop | B1277 |
| B1279 | Rain Sensor Communication Stop | B1279 |
| B1281 | Airbag ECU Communication Stop | B1281 |
| B1287 | Back Door ECU Communication Stop | B1287 |
| B1293 | Gateway ECU Communication Stop | B1293 |
| B1294 | Immobilizer ECU Communication Stop | B1294 |
Factory Service Tools
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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.
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