AutoCodes – Honda – P05B7 2018 Honda CR-V

P05B7 2018 Honda CR-V Code - Shutter Grille Actuator Lower Malfunction

Quick Answer

The shutter grille system open/closes the shutter depending on the driving conditions. Common causes include Lower Shutter Grille Local Interconnect Network (LIN) line open, Lower Shutter Grille LIN line short to ground, Lower 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: P05B7 2018 Honda CR-V indicates Shutter Grille Actuator Lower Malfunction.
Common causes: Common causes include Lower Shutter Grille Local Interconnect Network (LIN) line open, Lower Shutter Grille LIN line short to ground, Lower 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 191

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 P05B7 2018 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 P05B7 2018 Honda CR-V - Shutter Grille Actuator Lower Malfunction - AutoCodes.com — P05B7 2018 Honda CR-V Code - Shutter Grille Actuator Lower Malfunction

What does this mean?

What are the Possible Causes of the DTC P05B7 2018 Honda CR-V?

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

How to Fix the DTC P05B7 2018 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 P05B7 2018 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 P05B7 2018 Honda CR-V code?

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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 P05B7 2018 Honda CR-V Code

1. What does the OBDII code P05B7 mean on a 2018 Honda CR-V?

It indicates a "Shutter Grille Actuator Lower Malfunction," meaning the lower grille shutter system is not operating as expected.

2. What are the symptoms of code P05B7 in a 2018 Honda CR-V?

Common symptoms include a check engine light, reduced fuel efficiency, and possible overheating due to impaired airflow management.

3. What causes the P05B7 code to appear?

The main causes include a faulty shutter grille actuator, damaged wiring or connectors in the circuit, or debris blocking the grille shutters.

4. Can I drive with a P05B7 code on my 2018 Honda CR-V?

While the vehicle may still be drivable, prolonged operation with this issue can reduce fuel efficiency and potentially lead to engine cooling problems.

5. How do I diagnose a P05B7 code on my 2018 Honda CR-V?

Start by inspecting the lower grille shutters for obstruction or damage, check the actuator wiring and connectors, and use a scan tool to monitor actuator operation.

6. How do I fix the P05B7 code on a 2018 Honda CR-V?

Repairs may include cleaning debris from the grille shutters, repairing or replacing damaged wiring, or replacing the faulty shutter grille actuator.

7. How much does it cost to fix a P05B7 code on a 2018 Honda CR-V?

The cost can range from $150 to $500, depending on whether the issue requires actuator replacement or just minor repairs.

8. Can a P05B7 code cause long-term damage to my 2018 Honda CR-V?

If left unresolved, it can lead to reduced fuel efficiency and potential engine cooling issues, especially during extended driving or high temperatures.

9. What tools are needed to troubleshoot the P05B7 code?

A diagnostic scan tool, multimeter, and basic hand tools for accessing and inspecting the grille shutter system are typically needed.

10. Is the P05B7 code covered under warranty for a 2018 Honda CR-V?

It may be covered under the vehicleâ€™s powertrain or emissions warranty, depending on the mileage and warranty terms. Check with your dealer for confirmation.