AutoCodes – GMC – P02E5 2017 GMC Sierra

P02E5 2017 GMC Sierra Code - Intake Air Flow Valve Stuck Closed

Quick Answer

The intake airflow valve is a throttle plate actuator and is used to achieve high exhaust gas recirculation rates. Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P02E5 2017 GMC Sierra indicates Intake Air Flow Valve Stuck Closed.
Common causes: Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 171

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 09, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P02E5 2017 GMC Sierra Description

The intake airflow valve is a throttle plate actuator and is used to achieve high exhaust gas recirculation rates. It increases the pressure difference between exhaust and intake so that the appropriate exhaust quantity can be mixed with the intake air. The intake airflow valve contains a contactless inductive throttle position sensing element that is managed by a customized integrated circuit. The throttle position sensor is mounted within the valve assembly and is not serviceable. The Engine Control Module (ECM) supplies the valve assembly with a 5 V reference circuit, a low reference circuit, an H-bridge motor directional control circuit, and an asynchronous signal/serial data circuit. The asynchronous signal means communication is only going from the valve assembly to the ECM. The valve assembly cannot receive data from the ECM over the signal/serial data circuit. The throttle position sensor provides a signal that changes relative to the throttle blade angle. The throttle position sensor information is transmitted between the valve assembly and the ECM on the signal/serial data circuit. The ECM decodes the serial data signal into separate voltages which are displayed on a scan tool as the voltage inputs from TP sensors 1 and 2. The Diagnostic Trouble Code (DTC) will be set when the Throttle Position is less than 90%.

OBDII Code P02E5 2017 GMC Sierra - Intake Air Flow Valve Stuck Closed - AutoCodes.com — P02E5 2017 GMC Sierra Code - Intake Air Flow Valve Stuck Closed

What does this mean?

What are the Possible Causes of the DTC P02E5 2017 GMC Sierra?

Faulty Throttle Body Assembly
Throttle Body Assembly harness is open or shorted
Throttle Body Assembly circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P02E5 2017 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P02E5 2017 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P02E5 2017 GMC Sierra code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P02E5 2017 GMC Sierra Code

What does the OBDII code P02E5 mean on a 2017 GMC Sierra?

The P02E5 code indicates that the Intake Air Flow Control Valve is stuck in the closed position, affecting airflow to the engine.

What are the symptoms of the P02E5 code?

Common symptoms include reduced engine performance, poor fuel efficiency, rough idling, and potentially an illuminated check engine light.

What causes the P02E5 code to appear?

The code is typically caused by a faulty intake air flow control valve, carbon buildup, wiring issues, or a malfunctioning control module.

Can I drive my 2017 GMC Sierra with the P02E5 code?

While the vehicle may still be drivable, continuing to drive with this code can lead to decreased performance and potential damage to the engine or emissions system.

How can I diagnose the P02E5 code?

Diagnose the issue by using an OBDII scanner to confirm the code, visually inspecting the intake air flow valve for damage or carbon buildup, and checking the wiring and connections.

How is the P02E5 code fixed?

Repairs may involve cleaning or replacing the intake air flow control valve, repairing damaged wiring, or reprogramming or replacing the PCM if necessary.

What tools are needed to fix the P02E5 code?

You may need an OBDII scanner, basic hand tools, a multimeter for electrical testing, and possibly cleaning supplies for carbon buildup.

Can a dirty air filter cause the P02E5 code?

A dirty air filter alone is unlikely to cause this code, but it can contribute to airflow issues that exacerbate the problem.

How much does it cost to fix the P02E5 code on a 2017 GMC Sierra?

Repair costs vary but may range from $100 to $500, depending on whether the valve needs cleaning or replacement and if professional labor is required.

Can a software update resolve the P02E5 code?

In some cases, a PCM software update or reprogramming may resolve the issue if it’s related to a software malfunction.