OBD Guide

P211A

Throttle Actuator B Control System - Stuck Open

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–278 (est.)

Symptoms

  • Uncontrolled increase in engine speed
  • Check Engine Light Is On
  • Reduced engine power
  • Unstable idling
  • Acceleration problems

Causes

  • Jammed throttle mechanism
  • Throttle motor malfunction
  • Problems with wiring or connectors
  • Engine control unit malfunction
  • Dirty throttle mechanism

How to Fix

  1. Diagnostics of throttle drive electrical circuits
  2. Cleaning the throttle mechanism
  3. Checking and replacing the drive motor
  4. Replace the throttle assembly if necessary
  5. Reflashing or replacing the engine control unit

Related codes

Error P211A by Vehicle Brand