Error code

OBD2 P2118

OBD2P2118
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Throttle Actuator Control Motor Current Range/Performance.

Severity

severeThe vehicle may be difficult or impossible to drive due to limited throttle response.

Summary

Code P2118 indicates an issue with the throttle actuator control motor's current range or performance in drive-by-wire systems. This problem affects the throttle body assembly.

Symptoms

  • Engine may not start
  • Severe limitation of throttle response

Common Causes

  • Damaged, burnt, shorted, disconnected, or corroded wiring and/or connectors in the throttle control motor's power supply circuit
  • Defective throttle control motor
  • In some cases, defective position sensors can contribute to the setting of code P2118

Diagnosis

  1. Inspect and test all wiring and connectors in the throttle control motor's power supply circuit.
  2. Check for any additional codes related to throttle control systems.
  3. Test the throttle position sensor and accelerator pedal position sensor.
  4. If no issues are found, consider replacing the throttle body assembly.

Fixes

  • Replace defective wiring or connectors in the throttle control motor's power supply circuit
  • Replace the faulty throttle control motor
  • In some cases, replace the entire throttle body assembly if the motor is integrated within it.

FAQ

Can I drive with code P2118?

It may be difficult or impossible to start and drive the vehicle due to limited throttle response.

What causes this code?

Common causes include faulty wiring, a defective throttle control motor, or issues with position sensors.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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