How To Fix Power Steering Assist Fault Ford EcoSport - Comprehensive Guide

By Nick Marchenko, PhD

Upon ignition, the display might show "Steering assist malfunction - service required." This alert has been identified in various Ford EcoSport models. Sometimes, a simple restart might clear the warning, but it's imperative to dig deeper into the root cause to guarantee vehicular safety.

Diagnostic Code Retrieval

A comprehensive scan using a professional-grade diagnostic tool often reveals specific error codes. Notable ones include:

• B112B:07-68: BCMI Steering Wheel Module malfunction
• U0236:00-6C: Communication lost with the Column Lock Module
• U300:49-08: Internal electronic failure in the PSCM control module
• U0140: Loss of communication with the BCM

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Recommended Fixes

A typical dealer recommendation may involve a complete replacement of the steering gear/module. But before taking this route, consider the following:

a. Battery Voltage Check

During colder temperatures, the battery tends to be under added load from components like autolights, heaters, heated screens, and the ignition process. Since the EcoSport features electrically-assisted steering, a temporary voltage drop (indicative of a weak battery) might trigger the steering error. Before contemplating component replacements, perform a thorough battery charge and check.

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b. Wheel Size Considerations

There's an ongoing debate in the mechanic community: some believe that larger wheel alloys on Ford vehicles might put added stress on the steering pump, leading to these issues. However, it's equally likely that it's a module-based electronic fault, irrespective of wheel size.

Alternative Solutions

a. Consider Reconditioned Parts

If you're leaning towards the possibility of a faulty steering gear/module, sourcing a reconditioned rack/module can be an economical choice. Several trusted suppliers provide these components online.

b. EPAS Steering Rack Replacement

Another cost-effective approach is obtaining a gently-used EPAS Steering Rack from certified parts dealers. While this might be a cheaper solution than direct dealership purchases, ensure you're familiar with the installation process. After replacing, always verify the wheel alignment and tracking.

Software Updates

In some cases, the steering assist malfunction can be a result of outdated onboard software. Check for available updates, and ensure your vehicle's software is current. Some EcoSport owners have found success in resolving the issue following a software refresh.

In Conclusion

The power steering assist fault requires a meticulous approach to diagnose and rectify. Whether addressing the battery, updating software, or considering part replacements, always prioritize the vehicle's safety and functionality. Ensure all repairs meet certified automotive standards.

Nick Marchenko, PhD

Industrial Engineer & Automotive Content Specialist

Nick writes in-depth guides on car clubs, engine specs, vehicle ownership, and modifications, combining engineering knowledge with automotive passion.

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