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C0051 Chassis

Power Steering Position Sensor Performance

The chassis or power steering control module has detected that the steering position signal is implausible compared to vehicle motion. Stability control may be limited because correct yaw and slip-angle calculation depends on a valid steering angle.

Affected components

  • Steering angle sensor
  • Power steering module
  • Chassis control module

Common causes

  • High likelihood: Steering angle sensor not calibrated after alignment or repair
  • Medium likelihood: Steering angle sensor failed
  • Low likelihood: Signal path through clock spring degraded

Possible symptoms

  • ABS warning light on
  • ESC/stability control deactivated
  • Possible reduced brake assist
  • Speedometer may behave erratically

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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