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.
2009 Lexus LX 570FACTORY OEM SERVICE PROCEDURE
Can Communication System
CAN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| U0114/38 | Lost Communication with 4WD Control ECU |
| U0122 | Lost Communication with Vehicle Dynamics Control Module |
| U0123 | Lost Communication with Yaw Rate Sensor Module |
| U0124 | Lost Communication with Lateral Acceleration Sensor Module |
| U0126 | Lost Communication with Steering Angle Sensor Module |
| U0127 | Lost Communication with Tire Pressure Monitor Module |
| U0129 | Lost Communication with Brake System Control Module |
| U0130 | Lost Communication with Steering Effort Control Module |
| U0132 | Lost Communication with Suspension Control ECU |
| U0141 | Lost Communication with Body Control Module "A" |
| U0148 | Lost Communication with Gateway "C" |
| U0199 | Lost Communication with "Door Control Module A" |
| U0208 | Lost Communication with "Seat Control Module A" |
| U0230 | Lost Communication with Rear Gate Module |
| U0327 | Software Incompatibility with Vehicle Security Control Module |
| U1002 (CAN MS BUS) | Lost Communication with Gateway Module (Main body ECU) |
| U1002 (CAN No. 2 BUS) | Lost Communication with Gateway Module (Network Gateway ECU) |
| U1100 | Lost Communication with Seat Belt Control ECU |
| U1101 | Lost Communication with Distance Control ECU |
| U1111 | Lost Communication with Body No. 5 Module |
| U1115 | Lost Communication with Tilt and Telescopic Module |
| U1126 | Lost Communication with Parking Assist ECU |
Factory Service Tools
Use the Manual With the Right Hardware
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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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