TorqueMech Beta
TorqueMech OBD Code Guide

P0511 - Idle Air Control Circuit

The ECM detected a fault in the idle air control circuit.

Code first. Confirm symptoms and checks before pricing parts.

Read code pattern Check likely system Estimate after confirmation

Code Overview

The ECM detected a fault in the idle air control circuit.

Common Causes

  • Idle air control valve fault
  • Damaged wiring or connector
  • Throttle body contamination

Diagnostic Steps

  1. Inspect the idle air control connector and wiring
  2. Check throttle body and idle passages for buildup
  3. Command the idle control system if supported

Likely Repairs & Cost Guides

Confirm the repair path before pricing parts.

Continue Estimate

Next Steps

Move from code to checks, then estimate.