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.
