AutoCodes – Honda – P05A8 2020 Honda CR-V

P05A8 2020 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: P05A8 2020 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 167

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 P05A8 2020 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. If the upper or lower actuator voltage is detected as abnormal, the PCM confirms the abnormality and stores a Diagnostic Trouble Code (DTC). The DTC will be set when the power supply voltage of the PCM is more than 10.5V, when the actuator is 17.5 V or more, or less than 7.5 V for at least 2.5 seconds.

OBDII Code P05A8 2020 Honda CR-V - Shutter Grille Actuator Upper Malfunction - AutoCodes.com — P05A8 2020 Honda CR-V Code - Shutter Grille Actuator Upper Malfunction

What does this mean?

What are the Possible Causes of the DTC P05A8 2020 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 P05A8 2020 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 P05A8 2020 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 P05A8 2020 Honda CR-V code?

Need more information on how to fix the P05A8 2020 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P05A8 2020 Honda CR-V 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 P05A8 2020 Honda CR-V Code

What does the OBDII code P05A8 mean on a 2020 Honda CR-V?

P05A8 indicates a malfunction in the Shutter Grille Actuator Upper, which controls the grille shutters to optimize aerodynamics and engine temperature.

What are the symptoms of P05A8 on a 2020 Honda CR-V?

Symptoms may include the check engine light turning on, reduced fuel efficiency, and possible overheating or cooling system inefficiency.

What causes the P05A8 code to appear?

Common causes include a faulty shutter grille actuator, damaged wiring or connectors, or a software issue in the vehicleâ€™s ECU.

Can I drive my 2020 Honda CR-V with the P05A8 code?

Driving is generally possible, but prolonged operation may lead to reduced fuel efficiency or cooling performance. Itâ€™s best to address the issue promptly.

How is the P05A8 code diagnosed?

Technicians typically use an OBDII scanner to confirm the code, inspect the grille actuator for damage, and check the wiring and connections for faults.

What repairs fix the P05A8 code?

Repairs may include replacing the faulty shutter grille actuator, repairing or replacing damaged wiring, or updating the vehicleâ€™s ECU software.

How much does it cost to repair the P05A8 code on a 2020 Honda CR-V?

Repair costs can range from $200 to $600 depending on whether the actuator, wiring, or software requires attention.

Can I fix the P05A8 code myself?

If youâ€™re experienced with automotive repairs, you can inspect the actuator and wiring for damage. Otherwise, itâ€™s recommended to consult a professional mechanic.

Does the P05A8 code affect fuel economy?

Yes, a malfunctioning shutter grille actuator can reduce fuel efficiency by disrupting the vehicleâ€™s aerodynamics and engine temperature regulation.

Is the P05A8 code a common issue for the 2020 Honda CR-V?

While not extremely common, shutter grille actuator malfunctions can occur, particularly in vehicles frequently exposed to debris or harsh weather conditions.