AutoCodes – Honda – P05A3 2019 Honda CR-V

P05A3 2019 Honda CR-V Code - Shutter Grille Actuator Upper Malfunction

Quick Answer

The shutter grille system open/closes the shutter depending on the driving conditions. Common causes include Upper Shutter Grille Local Interconnect Network (LIN) line open, Upper Shutter Grille LIN line short to ground, Upper Shutter Grille LIN line short to power. 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: P05A3 2019 Honda CR-V indicates Shutter Grille Actuator Upper Malfunction.
Common causes: Common causes include Upper Shutter Grille Local Interconnect Network (LIN) line open, Upper Shutter Grille LIN line short to ground, Upper Shutter Grille LIN line short to power.
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 124

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 P05A3 2019 Honda CR-V Description

The shutter grille system open/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 integrates the actuator. 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. Also the PCM receives failure information from the shutter grille via the LIN line. The PCM discriminates a failure by the signal value received via the LIN line. If the PCM receives a specified signal from the shutter grille, the PCM detects as a shutter grille LIN line open/short failure and stores a Diagnostic Trouble Code (DTC). The DTC will be set when the upper or lower actuator state of short to ground or EEPROM of the read / write errors of the motor has continued for at least 2.5 seconds or more.

OBDII Code P05A3 2019 Honda CR-V - Shutter Grille Actuator Upper Malfunction - AutoCodes.com — P05A3 2019 Honda CR-V Code - Shutter Grille Actuator Upper Malfunction

What does this mean?

What are the Possible Causes of the DTC P05A3 2019 Honda CR-V?

Upper Shutter Grille Local Interconnect Network (LIN) line open
Upper Shutter Grille LIN line short to ground
Upper Shutter Grille LIN line short to power

How to Fix the DTC P05A3 2019 Honda CR-V?

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 P05A3 2019 Honda CR-V 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 P05A3 2019 Honda CR-V code?

Need more information on how to fix the P05A3 2019 Honda CR-V code? Get Access to Factory Service Manuals

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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 P05A3 2019 Honda CR-V Code

1. What does the OBDII code P05A3 mean on a 2019 Honda CR-V?

The P05A3 code indicates a "Shutter Grille Actuator Upper Malfunction," which means thereâ€™s an issue with the upper grille shutter system responsible for regulating airflow to the radiator.

2. What are the common symptoms of a P05A3 code?

Symptoms may include the check engine light turning on, reduced fuel efficiency, engine overheating, or noticeable airflow restriction in front of the radiator.

3. What causes the P05A3 code on a 2019 Honda CR-V?

Common causes include a faulty shutter grille actuator, wiring or connection issues, a stuck or obstructed grille shutter, or a malfunction in the control module.

4. Can I drive my 2019 Honda CR-V with a P05A3 code?

While the vehicle may still be drivable, prolonged operation with this issue could lead to reduced fuel efficiency or engine overheating, so itâ€™s best to address the problem promptly.

5. How can I fix the P05A3 code on my Honda CR-V?

Repairs may involve inspecting and cleaning the grille shutters, repairing damaged wiring or connectors, or replacing the shutter grille actuator if itâ€™s faulty.

6. How do I diagnose a P05A3 code?

Start by visually inspecting the grille shutters for obstructions, checking the actuator wiring for damage, and using a scan tool to test the actuator's functionality.

7. What tools are needed to repair a P05A3 issue?

You may need a diagnostic scan tool, a multimeter for testing electrical connections, and basic hand tools to access and inspect the grille shutter system.

8. How much does it cost to fix a P05A3 code on a 2019 Honda CR-V?

Repair costs can vary but typically range between $150 and $500, depending on whether the issue is a minor wiring repair or a full actuator replacement.

9. Can a dirty grille cause the P05A3 code?

Yes, debris or dirt can obstruct the grille shutters, preventing them from opening or closing properly and triggering the P05A3 code.

10. Does the P05A3 code affect fuel economy?

Yes, a malfunctioning shutter grille actuator can reduce fuel efficiency by disrupting the vehicleâ€™s ability to optimize airflow for aerodynamics and cooling.