General Troubleshooting Information: Self-diagnosis

Self-diagnosis can be classified into three categories

• Initial diagnosis Done right after the engine starts and until the EPS indicator goes off
• Regular diagnosis Done right after the initial diagnosis until the ignition switch is turned to LOCK (0), or press the engine start/stop button to select the OFF mode
• Steering diagnosis Done during regular diagnosis while turning the steering wheel

The EPS control unit does these functions when a problem is detected by self-diagnosis

1. Turns on the EPS indicator
2. Stores the DTC
3. Stops power assist and manual steering operation resumes
   NOTE: For DTCs 11-01,11-02,12-01,21-01,21-02, 22-01, 35-04, 36-02, and 37-01 the EPS indicator will go off automatically, and the system returns to normal