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Voltage Auto Service specializes in advanced hybrid, plug-in hybrid and EV diagnostics. Schedule an appointment to have the fault properly tested before replacing parts.

2008 Mercury Mariner Hybrid – Steering Wheel Shakes With B2278

  • Aug 15
  • 1 min read

Updated: Aug 15

CUSTOMER CONCERN

Customer states the steering wheel shakes slightly by itself while the vehicle is running and the wheel is centered. DTC B2278 is stored.

CAUSE

Power-steering testing confirmed a malfunctioning steering-shaft torque sensor.

CORRECTION

Remove and replace steering-shaft torque sensor. Perform steering-angle and torque-sensor calibration, clear DTC B2278 and verify steering operation.

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