AutoCodes – Chevrolet – P02E9 2016 Chevrolet Silverado

P02E9 2016 Chevrolet Silverado Code - Diesel Intake Air Flow Position Sensor Circuit High

Quick Answer

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. 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: P02E9 2016 Chevrolet Silverado indicates Diesel Intake Air Flow Position Sensor Circuit High.
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 299

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 10, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P02E9 2016 Chevrolet Silverado Description

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. The throttle position sensor is mounted within the throttle body assembly and is not serviceable. The Engine Control Module (ECM) supplies the throttle body with a 5 V reference circuit, a low reference circuit. The asynchronous signal means communication is only going from the throttle body to the ECM. The throttle body cannot receive data from the ECM over the signal/serial data circuit. The throttle position sensor provides a signal voltage that changes relative to the throttle blade angle. The throttle position sensor information is transmitted between the throttle body and the ECM on the signal/serial data circuit. The ECM decodes the serial data signal and is used as voltages for throttle position sensor 1 and 2. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the throttle valve position sensor SENT signal voltage is greater than a calibrated threshold for 0.5 s.

OBDII Code P02E9 2016 Chevrolet Silverado - Diesel Intake Air Flow Position Sensor Circuit High - AutoCodes.com — P02E9 2016 Chevrolet Silverado Code - Diesel Intake Air Flow Position Sensor Circuit High

What does this mean?

What are the Possible Causes of the DTC P02E9 2016 Chevrolet Silverado?

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 P02E9 2016 Chevrolet Silverado?

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 P02E9 2016 Chevrolet Silverado 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.

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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 P02E9 2016 Chevrolet Silverado Code

1. What does the OBDII code P02E9 mean on a 2016 Chevrolet Silverado?

P02E9 indicates a high voltage issue in the Diesel Intake Air Flow Position Sensor Circuit, which monitors and controls air intake for optimal engine performance.

2. What are the common symptoms of code P02E9?

Symptoms may include reduced engine power, poor fuel efficiency, rough idling, difficulty accelerating, and the check engine light being illuminated.

3. What causes the P02E9 code on a 2016 Silverado?

Possible causes include a faulty intake air flow position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).

4. Can a dirty air filter cause the P02E9 code?

While a dirty air filter may restrict airflow, it is unlikely to directly trigger the P02E9 code. However, it can contribute to related airflow issues over time.

5. How do you diagnose the P02E9 code?

Diagnosing involves using an OBDII scanner to confirm the code, inspecting the intake air flow position sensor and its wiring, and testing the sensor's voltage and resistance.

6. Is it safe to drive with the P02E9 code?

Driving with this code is not recommended, as it can lead to reduced engine performance and potential damage to other components if not addressed promptly.

7. How do you fix the P02E9 code on a 2016 Silverado?

Repairs may involve replacing a faulty intake air flow position sensor, repairing damaged wiring or connectors, or reprogramming/updating the ECM if necessary.

8. Can a software update resolve the P02E9 code?

In some cases, a software update for the ECM may resolve the issue if it is caused by a programming error or incorrect sensor calibration.

9. How much does it cost to fix the P02E9 code?

Repair costs can vary, but replacing the intake air flow position sensor typically ranges between $150 and $300, including parts and labor.

10. Can I reset the P02E9 code without repairs?

You can clear the code using an OBDII scanner, but if the underlying issue is not resolved, the code will likely return. Proper diagnosis and repair are necessary.