AutoCodes – Chevrolet – P151E 2014 Chevrolet Silverado

P151E 2014 Chevrolet Silverado Code - Active Grille Air Shutter Actuator 1 Signal Message Counter Incorrect

Quick Answer

The active grille air shutter system closes shutters in the front grille to enhance vehicle aerodynamics in driving situations where cooling and A/C loads are relatively low and high levels of front-end airflow are not required. Common causes include Faulty Active Grille Air Shutter Actuator, Active Grille Air Shutter Actuator harness is open or shorted, Active Grille Air Shutter Actuator 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: P151E 2014 Chevrolet Silverado indicates Active Grille Air Shutter Actuator 1 Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Active Grille Air Shutter Actuator, Active Grille Air Shutter Actuator harness is open or shorted, Active Grille Air Shutter Actuator 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 1,400

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 Jul 14, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P151E 2014 Chevrolet Silverado Description

The active grille air shutter system closes shutters in the front grille to enhance vehicle aerodynamics in driving situations where cooling and A/C loads are relatively low and high levels of front-end airflow are not required. If high levels of airflow are required, the active grille air shutter system will open one or both shutters. The control signal from the Engine Control Module (ECM), ignition, and ground circuits enable the active grille air shutter actuators to operate. If the conditions for opening the shutters are reached the ECM commands the active grille air shutter actuators to open one or both shutters.
The dual active grille air shutter system consists of two aero shutter mechanisms located in the front grille for controlling the amount of air flowing through the grille. It includes three wires; ground, power, and a Local Interconnect Network (LIN) Bus serial data circuit from the ECM to the shutter actuator. The ECM determines shutter state based on various vehicle conditions such as vehicle speed, coolant temperature, fan state, refrigerant system pressure, A/C compressor state, and ambient temperature. The ECM has the ability to command each shutter individually to the open or closed positions through communications on the LIN Bus.
The actuators are powered by an ignition circuit that is active when the key is in the RUN position. The vehicle may have to be driven for up to 13 minutes at speeds greater than 41 km/h (25 mph) before a shutter begins to move. If low ambient temperature is detected, the shutters will remain in the closed position.
The Diagnostic Trouble Code (DTC) will be set if there a LIN Bus Communication Malfunction

OBDII Code P151E 2014 Chevrolet Silverado - Active Grille Air Shutter Actuator 1 Signal Message Counter Incorrect - AutoCodes.com — P151E 2014 Chevrolet Silverado Code - Active Grille Air Shutter Actuator 1 Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P151E 2014 Chevrolet Silverado?

Faulty Active Grille Air Shutter Actuator
Active Grille Air Shutter Actuator harness is open or shorted
Active Grille Air Shutter Actuator circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P151E 2014 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P151E 2014 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.

Need more information about the P151E 2014 Chevrolet Silverado code?

Need more information on how to fix the P151E 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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Get the P151E 2014 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P151E 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P151E in a 2014 Chevrolet Silverado?

The common symptoms of OBDII code P151E include poor engine performance, reduced fuel efficiency, and potential stalling or rough idling.

2. What does the OBDII code P151E "Active Grille Air Shutter Actuator 1 Signal Message Counter Incorrect" mean for a 2014 Chevrolet Silverado?

The code indicates a problem with the Active Grille Air Shutter Actuator 1 signal message counter, which can affect the vehicle's aerodynamics and engine performance.

3. What are the possible causes of OBDII code P151E in a 2014 Chevrolet Silverado?

Possible causes of code P151E include a faulty Active Grille Air Shutter Actuator, wiring issues, a defective actuator motor, or a malfunctioning control module.

4. How can I diagnose the OBDII code P151E in my 2014 Chevrolet Silverado?

Diagnosing code P151E may involve conducting a visual inspection of the actuator and its wiring, testing the actuator motor, and using a scan tool to check for specific error codes and data.

5. Can I continue driving my 2014 Chevrolet Silverado with OBDII code P151E active?

While it may be possible to drive the vehicle with code P151E present, it is not recommended as it can lead to reduced performance and potential long-term damage if left unresolved.

6. What are some repair tips for fixing OBDII code P151E in a 2014 Chevrolet Silverado?

Repair tips for resolving code P151E may include checking and repairing any damaged wiring, replacing the faulty Active Grille Air Shutter Actuator, or resetting the control module after addressing the issue.

7. Is it safe to reset the OBDII code P151E in a 2014 Chevrolet Silverado without fixing the underlying issue?

Resetting the code without fixing the underlying problem may temporarily turn off the check engine light, but the issue will likely resurface, affecting the vehicle's performance and emissions.

8. How much does it cost to repair OBDII code P151E in a 2014 Chevrolet Silverado?

The cost of repairing code P151E can vary depending on the specific cause of the issue, but it may involve parts replacement, labor costs, and potential diagnostic fees.

9. Can a DIY enthusiast fix OBDII code P151E in a 2014 Chevrolet Silverado?

While some aspects of diagnosing and repairing code P151E can be tackled by a DIY enthusiast, certain repairs may require specialized tools or professional expertise for accurate resolution.

10. How can regular maintenance help prevent OBDII code P151E in a 2014 Chevrolet Silverado?

Regular maintenance, such as checking the condition of the Active Grille Air Shutter Actuator and its components, can help detect potential issues early and prevent the occurrence of code P151E.