ezOBD2 - Free OBD2 Code Lookup and Check Engine Light Diagnostic Tool

Find Your OBD2 Code Fast

Type the code from your scanner to get causes, symptoms, and fixes.

Code P011D

Quick reference

P011D at a glance

Plain-language meaning
This code means that the computer in your car is getting confusing temperature readings from two sensors that measure the air going into the engine. It's like when you have two thermometers and they show different temperatures, which shouldn't happen.
Urgency
Moderate – While the vehicle may still be drivable, it's important to address the issue to prevent potential engine performance problems.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Basic hand tools

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that the computer in your car is getting confusing temperature readings from two sensors that measure the air going into the engine. It's like when you have two thermometers and they show different temperatures, which shouldn't happen.

Explanation

The P011D code is triggered when the Engine Control Module (ECM) detects that the readings from the charge air cooler temperature sensor and the intake air temperature sensor on bank 2 do not match within a specified range.

Technical description

The ECM uses data from the charge air cooler temperature sensor and the intake air temperature sensor to monitor the temperature of the air entering the engine. If the readings from these sensors on bank 2 are not within a certain range of each other, the ECM will set the P011D code. This can affect engine performance and emissions.

Symptoms

• Check Engine Light is on

• Poor engine performance

• Reduced fuel efficiency

Common Causes

• Faulty charge air cooler temperature sensor

• Faulty intake air temperature sensor

• Wiring issues or poor electrical connections

Glossary

ECM: Engine Control Module

OBD-II: On-Board Diagnostics II

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connectors for both sensors.

• Test the sensors for proper operation using a multimeter.

Repair procedures

• Replace the faulty sensor.

• Repair or replace damaged wiring or connectors.

• Clear the code and test drive the vehicle to ensure the issue is resolved.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Ram 1500

Preventive measures

• Regularly inspect and maintain sensors.

• Keep wiring and connectors clean and secure.

• Perform regular vehicle diagnostics.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the Check Engine Light.

• Have the vehicle inspected by a professional if unsure.

• Regular maintenance can prevent sensor issues.

Warranty information

Check if your vehicle's sensors are covered under the manufacturer's warranty.

Historical data

This code is relatively common in turbocharged vehicles where precise air temperature monitoring is crucial for performance.

Urgency level

Moderate – While the vehicle may still be drivable, it's important to address the issue to prevent potential engine performance problems.

Testing conditions

• Engine running and at operating temperature

• Vehicle driven under various load conditions

Component location

The charge air cooler temperature sensor and intake air temperature sensor are typically located in the air intake system, near the intercooler or air filter housing.

FAQs

Q: Can I drive my car with a P011D code?
A: While you can drive with this code, it's best to fix it soon to avoid performance issues.

Q: How do I know which sensor is faulty?
A: A diagnostic test using a multimeter can help determine which sensor is not working properly.

Optional diagnostic gear

Tools that may help diagnose P011D

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
🌙