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.
2017 Toyota MiraiFACTORY OEM SERVICE PROCEDURE
Lane Control System
LANE CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| U012587 | Lost Communication with Multi-axis Acceleration Sensor Module Missing Message |
| U012687 | Lost Communication with Steering Angle Sensor Module Missing Message |
| U012987 | Lost Communication with Brake System Control Module Missing Message |
| U013187 | Lost Communication with Power Steering Control Module Missing Message |
| U015587 | Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message |
| U023587 | Lost Communication with Cruise Control Front Distance Range Sensor Single Sensor or Center Missing Message |
| U029387 | Lost Communication with Hybrid/EV Powertrain Control Module Missing Message |
| U030051 | Internal Control Module Software Incompatibility Not Programmed |
| U030057 | Internal Control Module Software Incompatibility Invalid / Incompatible Software Component |
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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