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High Severity — Powertrain OBD-II DTC

B2278: Steering shaft torque sensor or steering column signal fault

B2278 on Ford Escape is most often reported with body / steering assist symptoms. FixIt found 60 NHTSA owner reports for this code/vehicle pair, covering 2008, 2009, 2010, 2011, 2012.

Last reviewed: Last updated:

Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.

Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

⚡ Quick Summary

Severity
High
DIY Level
Moderate
Repair Cost
$–$
Urgency
Fix within days

🚨 Symptoms of B2278

▸ Power steering warning light or steering assist warning message
▸ Intermittent or complete loss of electric steering assist
▸ Heavier steering effort at low speed
▸ ABS, stability control, or traction warnings may appear with related faults

🔍 Common Causes of B2278

LOW
Steering column torque sensor signal out of range
LOW
Damaged wiring or connector at the steering column or steering control module
LOW
Low system voltage affecting steering assist modules
LOW
Failed steering column/EPAS module after confirming power, ground, and network communication

🛠️ How to Fix B2278

⭐ Most Common Fix

Scan the steering, ABS, and body modules with a tool that reads manufacturer-specific B-codes

💰 $–$ 🔧 Moderate

Inspect steering column connectors and harness routing before replacing parts

💰 $–$ 🔧 Moderate

Verify battery voltage, charging voltage, module grounds, and related communication codes

💰 $–$ 🔧 Moderate

Replace or recalibrate the steering column/torque sensor assembly only after signal testing confirms the fault

💰 $–$ 🔧 Moderate

🔬 Step-by-Step Diagnosis

  1. 1 Confirm B2278 in the module that stores it on the Ford Escape, not only in a generic OBD-II app.
  2. 2 Record all companion codes before clearing anything; this code often appears with related module or chassis faults.
  3. 3 Inspect power, ground, connectors, and wiring before replacing high-cost modules or assemblies.

❓ Frequently Asked Questions

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Disclaimer: This information is for educational purposes only. It is not intended as repair advice and we are not responsible for any actions you take on any vehicle. Always consult a qualified mechanic for diagnosis and repair. Repair costs shown are estimates and may vary by location, vehicle, and shop.