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C052B Chassis

ABS Pump Motor Control Range/Performance

ABS pump motor does not respond to control signals as expected — motor may be sluggish, locked or drawing abnormal current.

Affected components

  • Abs pump motor

Common causes

  • High likelihood: Pump motor failed
  • Low likelihood: Sensor element aged beyond calibration window
  • Low likelihood: Sensor mounting loose - signal damping

Possible symptoms

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

Diagnostic notes

  • The malfunction indicator lamp may illuminate
  • A drive cycle may be required after repair
  • Reduced-power or limp mode may occur

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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