AutoCodes – Honda – P05A0 Honda

P05A0 Honda Code - Shutter Grille Assembly Upper Malfunction

Quick Answer

The shutter grille system opens/closes the shutter depending on the driving conditions. Common causes include Faulty Upper Shutter Grille stuck, Faulty Shutter Grille Upper Actuator, Shutter Grille Upper Actuator harness is open or shorted. 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: P05A0 Honda indicates Shutter Grille Assembly Upper Malfunction.
Common causes: Common causes include Faulty Upper Shutter Grille stuck, Faulty Shutter Grille Upper Actuator, Shutter Grille Upper Actuator harness is open or shorted.
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 452

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 27, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P05A0 Honda Description

The shutter grille system opens/closes the shutter depending on the driving conditions. The system improves fuel efficiency by reducing the wind drag. The shutter is controlled by the shutter grille which includes the actuator with CPU. The Powertrain Control Module (PCM) sends open/close requests which depends on the driving conditions to the shutter grille via the Local Interconnect Network (LIN) line. If the shutter grille actuator detects a restriction and if the restriction condition continues even if the initial learning is retried for a specified time, the PCM confirms the abnormality and stores a Diagnostic Trouble Code (DTC). The DTC will be set when the shutter grille actuator detects a restriction and if the restriction condition continues for at least 2.5 seconds after the initial learning is retried for three times.

OBDII Code P05A0 Honda - Shutter Grille Assembly Upper Malfunction - AutoCodes.com — P05A0 Honda Code - Shutter Grille Assembly Upper Malfunction

What does this mean?

What are the Possible Causes of the DTC P05A0 Honda?

Faulty Upper Shutter Grille stuck
Faulty Shutter Grille Upper Actuator
Shutter Grille Upper Actuator harness is open or shorted
Shutter Grille Upper Actuator circuit poor electrical connection

How to Fix the DTC P05A0 Honda?

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 P05A0 Honda 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 P05A0 Honda code?

Need more information on how to fix the P05A0 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P05A0 Honda code diagnosed by a professional: Find a repair shop in your area

Information for Specific Honda Models

P05A0 2016 Honda CR-V — Shutter Grille Assembly Upper Malfunction
P05A0 2017 Honda CR-V — Shutter Grille Assembly Upper Malfunction
P05A0 2018 Honda CR-V — Shutter Grille Assembly Upper Malfunction
P05A0 2019 Honda CR-V — Shutter Grille Assembly Upper Malfunction
P05A0 2020 Honda CR-V — Shutter Grille Assembly Upper Malfunction
P05A0 2021 Honda CR-V — Shutter Grille Assembly Upper Malfunction

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 P05A0 Honda Code

What does the OBDII code P05A0 mean on a Honda?

P05A0 indicates a malfunction in the upper shutter grille assembly, which is responsible for regulating airflow to the radiator and engine for improved aerodynamics and cooling efficiency.

What are the common symptoms of a P05A0 code in a Honda?

Symptoms may include an illuminated check engine light, reduced fuel efficiency, overheating issues, or unusual noises from the grille area.

What causes the P05A0 code to appear?

Common causes include a faulty shutter grille actuator, damaged grille louvers, wiring issues, or debris obstructing the grille mechanism.

Can I drive my Honda with a P05A0 code?

While the car may still be drivable, prolonged use with this issue could lead to overheating, reduced fuel efficiency, or further damage to engine components.

How do I diagnose the P05A0 code on my Honda?

Diagnosis typically involves scanning for codes, inspecting the grille assembly for physical damage or obstructions, and testing the actuator and wiring connections.

How do I fix the P05A0 code on a Honda?

Repairs may include cleaning debris from the grille, replacing the shutter grille actuator, repairing damaged wiring, or replacing the entire grille assembly if necessary.

How much does it cost to repair a P05A0 code on a Honda?

Repair costs can range from $100 to $500 or more, depending on whether the actuator, wiring, or grille assembly needs replacement.

Can a P05A0 code be caused by extreme weather?

Yes, extreme cold, ice, or snow can obstruct the grille or cause the mechanism to freeze, potentially triggering the code.

Does the P05A0 code affect fuel economy?

Yes, a malfunctioning grille assembly can disrupt aerodynamics and cooling efficiency, leading to reduced fuel economy.

Will resetting the check engine light fix the P05A0 code permanently?

No, resetting the light will only temporarily clear the code. The underlying issue with the shutter grille assembly must be repaired to prevent the code from returning.