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P2118 Powertrain

Throttle Actuator Control Motor Current Range/Performance

The current draw of the throttle motor lies outside the expected range — either much higher (binding plate) or much lower (worn brushes, open winding) than calibrated.

Affected components

  • Throttle actuator motor
  • Throttle body

Common causes

  • High likelihood: Plate binding from carbon
  • Medium likelihood: Motor windings aged or open
  • Low likelihood: Sensor element aged beyond calibration window

Possible symptoms

  • Check engine light on
  • Reduced throttle response, possible limp mode
  • Hesitation or surging
  • Idle too high or too low

Diagnostic notes

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

Related codes

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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