The EPS light is continuously illuminated on the dash. What should the technician do?

When the EPS (Electronic Power Steering) light is continuously illuminated on the dashboard, the most appropriate course of action is to connect a scan tool and access the trouble code. This step is critical because the EPS system is equipped with onboard diagnostics that can provide specific trouble codes related to the steering system's performance. These codes can help identify the underlying issue, whether it's related to the power steering control module, sensors, or other components.

Using a scan tool allows the technician to retrieve not only the trouble codes but also any additional data that may assist in diagnosing the problem effectively. This systematic approach is essential in automotive repair, ensuring that the technician can address the issue accurately rather than making assumptions.

While checking battery voltage, inspecting EPS fluid levels, or even replacing the EPS system might seem reasonable, these steps do not provide the immediate and specific insights that the diagnostic trouble codes can offer. Battery voltage checks and fluid inspections are part of broader maintenance but are not direct diagnostic steps for the illuminated EPS warning light. Replacing the EPS system can be costly and unnecessary without first confirming that the EPS system itself has failed through proper diagnostics.