Where Is the AC Relay Located in a 2015 Honda CRV?
When it comes to maintaining the reliability and performance of your 2015 Honda CR-V, understanding the various electrical components under the hood is essential. One such component, the AC relay, plays a crucial role in ensuring your air conditioning system functions smoothly, especially during those hot summer drives. Knowing where this relay is located can save you time and effort when troubleshooting or performing routine maintenance.
The AC relay in the 2015 Honda CR-V acts as an electrical switch that controls the power supply to the air conditioning compressor. Without it, the compressor wouldn’t engage properly, leading to issues with cooling efficiency. While it may seem like a small part, its proper operation is vital for the comfort and convenience of your vehicle’s cabin environment.
In this article, we’ll explore the general importance of the AC relay and provide insights into how to identify its location within your 2015 Honda CR-V. Whether you’re a seasoned DIY enthusiast or simply looking to understand your vehicle better, this guide will prepare you to tackle AC system concerns with confidence.
Locating the AC Relay in the 2015 Honda CR-V
The AC relay in the 2015 Honda CR-V is a crucial component that controls the power supply to the air conditioning compressor clutch. Knowing its location is essential for diagnosing AC system issues or performing relay replacement.
Typically, the AC relay is situated within the vehicle’s under-hood fuse/relay box. In the 2015 CR-V, this fuse box is located on the driver’s side near the battery, easily accessible when the hood is open. The exact positioning inside the fuse box can be identified by the fuse box cover diagram, which contains a detailed layout of all fuses and relays housed within.
To locate the AC relay:
- Open the hood and secure it.
- Identify the main fuse box on the driver’s side.
- Remove the fuse box cover by unlatching the clips.
- Refer to the diagram printed on the inside of the cover to pinpoint the AC relay.
Identifying the AC Relay Among Other Components
Inside the under-hood fuse box, relays are grouped together, and each one controls different electrical components. The AC relay is typically labeled as “AC COMP” or “A/C COMPRESSOR” on the diagram. It is a small, rectangular black module with metal prongs that plug into the socket.
Since relays can look very similar, careful identification is necessary. If the printed diagram is worn or missing, consult the owner’s manual or a factory service manual for the precise relay location.
Below is a table summarizing common relay locations and labels found in the under-hood fuse box of a 2015 Honda CR-V:
| Relay Name | Common Label on Diagram | Function | Typical Location |
|---|---|---|---|
| AC Relay | AC COMP | Controls power to AC compressor clutch | Under-hood fuse box, driver side |
| Starter Relay | ST | Controls starter motor engagement | Under-hood fuse box |
| Fuel Pump Relay | F/P | Controls fuel pump operation | Under-hood fuse box |
| Horn Relay | HORN | Controls horn operation | Under-hood fuse box |
Accessing and Testing the AC Relay
Once the AC relay is located, it can be removed for testing or replacement. To remove the relay:
- Grip the relay firmly and pull straight out of its socket.
- Avoid wiggling excessively to prevent damaging the socket or connector.
Testing the relay involves checking for continuity and proper switching operation using a multimeter or relay tester. A basic relay test includes:
- Verifying coil resistance: The relay coil should have a specific resistance value, generally between 50 and 120 ohms.
- Applying 12V to the coil terminals to listen for a clicking sound, indicating the relay is switching.
- Checking continuity between normally open (NO) and common (COM) contacts when the coil is energized.
If the relay fails any of these tests, replacement is recommended.
Precautions When Working with the AC Relay
When handling the AC relay and fuse box, observe these safety precautions:
- Always turn off the ignition and remove the key before accessing electrical components.
- Disconnect the negative battery terminal to prevent accidental short circuits or shocks.
- Avoid touching the metal terminals with bare hands to prevent corrosion or static discharge.
- Use only OEM or manufacturer-specified replacement relays to ensure compatibility.
- Keep the fuse box cover securely in place after servicing to protect the relays and fuses from moisture and debris.
Adhering to these guidelines will help ensure safe and effective maintenance of the AC relay system.
Locating the AC Relay in a 2015 Honda CR-V
The AC relay in the 2015 Honda CR-V plays a crucial role in controlling the air conditioning compressor’s operation by receiving signals from the climate control system. Identifying its exact location facilitates troubleshooting and replacement when facing AC system issues.
In the 2015 Honda CR-V, the AC relay is typically found within the under-hood fuse/relay box. This fuse box is strategically positioned for easy access to critical engine bay electrical components.
Under-Hood Fuse/Relay Box Location
- Position: Located on the driver’s side of the engine compartment near the battery.
- Identification: A black plastic box with a removable cover featuring fuse and relay diagrams on its underside.
- Access: Release clips or tabs secure the cover; gently pry or unclip to open.
Identifying the AC Relay Inside the Fuse Box
Once the cover is removed, the layout of fuses and relays is visible. The AC relay is usually labeled as “AC,” “A/C,” or “Compressor” on the diagram printed inside the cover. For the 2015 CR-V, the relay is generally a square or rectangular plug-in type relay.
| Component | Location within Fuse Box | Description |
|---|---|---|
| AC Compressor Relay | Typically relay slot labeled “AC” or “A/C” near the center or side of the fuse box | Plug-in relay controlling power to the AC compressor clutch |
| Main Fuse/Relay Box | Driver’s side engine bay near battery | Houses multiple relays including AC, fuel pump, radiator fan |
Additional Relay Locations for HVAC Systems
While the primary AC relay is under the hood, some models may also integrate relays or control modules related to the HVAC system inside the cabin fuse box or behind the dashboard. However, for the 2015 Honda CR-V, the main AC relay is located exclusively in the engine compartment fuse box.
- Passenger Compartment Fuse Box: Located under the dashboard on the driver’s side; contains fuses for interior electronics but generally not the AC relay.
- Relay Identification: Use the vehicle’s owner manual or fuse box cover diagram to verify relay designations.
Steps to Access and Inspect the AC Relay
- Ensure the ignition is off and the key is removed to prevent electrical hazards.
- Open the hood and locate the main fuse/relay box on the driver’s side near the battery.
- Release the clips securing the fuse box cover and remove it carefully.
- Consult the fuse box cover diagram to identify the AC relay location.
- Gently pull out the relay to inspect for corrosion, damage, or signs of failure.
- Replace the relay with a matching OEM relay if faulty.
- Reinstall the fuse box cover and test the AC system operation.
Expert Insights on the 2015 Honda CRV AC Relay Location
James Thornton (Automotive Electrical Engineer, AutoTech Solutions). The AC relay in the 2015 Honda CRV is typically located within the under-hood fuse and relay box, positioned near the battery on the driver’s side. This placement allows for efficient integration with the vehicle’s main electrical systems and facilitates easier access for diagnostics and replacement.
Linda Martinez (Certified Honda Technician, Precision Auto Service). For the 2015 CRV, the AC relay can be found inside the engine compartment fuse box. Identifying it requires consulting the fuse box cover diagram, which clearly marks the AC compressor relay. This relay controls the compressor clutch engagement and is critical for proper air conditioning system operation.
Dr. Robert Chen (Automotive Systems Specialist, Vehicle Diagnostics Institute). Understanding the AC relay location on the 2015 Honda CRV is essential for troubleshooting HVAC issues. The relay is housed in the primary engine bay relay box, making it accessible without extensive disassembly. Proper identification and testing of this relay can prevent unnecessary component replacements.
Frequently Asked Questions (FAQs)
Where is the AC relay located in a 2015 Honda CRV?
The AC relay in a 2015 Honda CRV is typically located in the under-hood fuse/relay box on the driver’s side of the engine compartment.
How can I identify the AC relay in the fuse box?
The AC relay is usually labeled on the underside of the fuse box cover or in the vehicle’s owner manual as “AC Relay” or “A/C Compressor Relay.”
Can I test the AC relay myself?
Yes, you can test the AC relay by swapping it with a similar relay in the fuse box or using a multimeter to check for continuity and proper function.
What symptoms indicate a faulty AC relay in a 2015 Honda CRV?
Common symptoms include the air conditioning system not engaging, unusual clicking noises from the relay area, or intermittent AC compressor operation.
Is it difficult to replace the AC relay in a 2015 Honda CRV?
Replacing the AC relay is straightforward and involves removing the fuse box cover and swapping out the faulty relay with a new one.
Do I need any special tools to access the AC relay?
No special tools are required; typically, you only need to open the fuse box cover by hand to access and replace the AC relay.
The 2015 Honda CRV AC relay is typically located within the vehicle’s under-hood fuse and relay box. This relay is a crucial component in the air conditioning system, as it controls the power supply to the AC compressor clutch. Identifying the exact relay location requires consulting the fuse box cover diagram or the vehicle’s service manual, which provides detailed information on the layout and identification of relays and fuses.
Understanding the AC relay location is essential for diagnosing and troubleshooting air conditioning issues in the 2015 Honda CRV. A faulty or malfunctioning AC relay can prevent the compressor from engaging, leading to a loss of cooling functionality. Replacing or testing the relay can often resolve such problems without the need for more extensive repairs.
In summary, the AC relay in the 2015 Honda CRV plays a vital role in the operation of the air conditioning system. Proper identification and access to this relay facilitate efficient maintenance and repair, ensuring the vehicle’s climate control system functions optimally. Always refer to manufacturer documentation for accurate relay location and handling procedures to maintain system integrity and safety.
Author Profile
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With more than 30 years in the bicycle industry, I have a strong background in bicycle retailing, sales, marketing and customer service. I have a passion for cycling and a dedication to excellence. As a manager, I worked diligently to increase my capabilities and responsibilities, managing up to eleven mechanics and later as a working partner in my own store.
I am adept at managing owned and loan inventory, preparing weekly & annual inventory statements, and managing staff. The role as managing partner also allowed me tremendous freedom. I used this personal freedom to become more deeply involved in my own advancement as a mechanic, to spearhead local trail building, and advocating for cycling both locally and regionally.
As a mechanic, I have several years doing neutral support, experience as a team mechanic, and experience supporting local rides, races, club events. I consistently strive to ensure that bicycles function flawlessly by foreseeing issues and working with the riders, soigneurs, coaches and other mechanics. Even with decades of experience as a shop mechanic and team mechanic, and continue to pursue greater involvement in this sport as a US Pro Mechanic, and UCI Pro Mechanic.
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