OBD Guide

P011F

Engine Coolant Temperature 2 / Ambient Air Temperature Correlation

P011F is an OBD-II diagnostic trouble code meaning: Engine Coolant Temperature 2 / Ambient Air Temperature Correlation. Common causes: coolant temperature sensor malfunction, ambient temperature sensor malfunction. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Switching to emergency mode
  • Incorrect temperature readings on the dashboard

Causes

  • Coolant temperature sensor malfunction
  • Ambient temperature sensor malfunction
  • Wiring harness damage
  • Short circuit or open circuit
  • Problems with sensor contacts

How to Fix

  1. Check the readings of both sensors using a diagnostic scanner
  2. Inspect the wiring harness for damage
  3. Check sensor contacts for oxidation and corrosion
  4. Replace the faulty sensor if necessary
  5. Clear error codes and test drive

Related codes

Error P011F by Vehicle Brand

FAQ

What does the P011F code mean?

P011F is an OBD-II diagnostic trouble code that indicates: Engine Coolant Temperature 2 / Ambient Air Temperature Correlation

What causes a P011F error code?

The most common causes of P011F include: Coolant temperature sensor malfunction; Ambient temperature sensor malfunction; Wiring harness damage; Short circuit or open circuit.

How do I fix a P011F diagnostic trouble code?

To fix P011F: Check the readings of both sensors using a diagnostic scanner. Inspect the wiring harness for damage. Check sensor contacts for oxidation and corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P011F?

Limited driving only, diagnose soon

How much does it cost to fix P011F?

The estimated repair cost for P011F is $22–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat