EngineLightCodes
Powertrain code

P2118 Throttle Actuator Control Motor Current Range/Performance

Severity
Fix soon
Typical repair cost
$90–$770
Do it yourself
Possible, medium
Shop time
0.5–3.0 hours

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.

Written from public technical sources and not yet checked by a mechanic. How we write these pages

Symptoms

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

Common causes

  1. Plate binding from carbon Most likely
  2. Motor windings aged or open Possible
  3. Sensor element aged beyond calibration window Less likely

How to diagnose P2118

  1. Read every stored code with an OBD-II scanner. If misfire or fuel trim codes are there too, fix those first: they often cause this one.
  2. Inspect the parts involved: throttle actuator motor, throttle body.
  3. Work through the causes above from most to least likely, cheapest checks first.
  4. Clear the code and drive a full drive cycle to confirm the repair held.

Reading the code

P
Powertrain
2
Generic (SAE) code
118
Specific fault

Questions drivers ask

Can I drive with code P2118?

Drive gently and only as far as you need to. The engine computer may limit power to protect the engine, so avoid highways and heavy traffic until it's fixed. If the check engine light starts flashing, pull over.

Will my car pass an emissions inspection with P2118?

Probably not in states that test vehicles with an OBD-II scan: an emissions-related code that keeps the check engine light on is usually an automatic fail. Rules differ by state and county, so check yours.

Will P2118 clear by itself?

The light can go off after several drive cycles without the fault, but the code returns if the cause is still there. After a repair, the readiness monitors need a full drive cycle before an inspection.

Can I fix P2118 myself?

Often yes, with an OBD-II scanner and basic tools. Difficulty: medium. Start with the cheapest checks before replacing expensive parts.

This page is general information, not a substitute for a professional diagnosis. Repair costs are rough estimates for parts and labor and vary by vehicle and region.