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Where Is the A/C Relay Located?

Reviewed by

Richard McCuistian, ASE Certified Master Automobile Technician

Technical Reviewer at CarParts.com

Written by CarParts.com Research Team - Updated on December 16th, 2023

Reading Time: 2 minutes

Summary

The A/C relay, which is also known as the A/C compressor clutch relay and the A/C compressor relay, is in charge of engaging the electromagnetic compressor clutch.
The A/C relay can usually be found in the vehicle’s fuse box. The fuse box cover typically has a diagram illustrating the exact location of each relay.
Use your owner’s manual to find out where your fuse box is. Each vehicle can have multiple fuse boxes in different places, including the passenger side, the driver’s side, and the engine compartment.

Contents hide

1. Q: Where Is the A/C Relay Typically Located?

2. Tips on How to Access the A/C Relay

Q: Where Is the A/C Relay Typically Located?

A: The A/C relay, which is also known as the A/C compressor clutch relay and the A/C compressor relay, is in charge of engaging the electromagnetic compressor clutch. Without it, the A/C system won’t cool your vehicle.

The A/C relay can usually be found in the vehicle’s fuse box. The fuse box cover typically has a diagram illustrating the exact location of each relay. You can also look in the owner’s manual.

sample of ac relay labels — Sometimes, the relays will be plainly labeled using text, but as in the case of the Honda CRV (shown in these photos), symbols will be used to indicate which relay is the A/C. In this case, the snowflake symbol and relay diagram identifies the A/C relay. | Image Source: Richard McCuistian

The vehicle’s make and model will impact where you can find the A/C relay. In 2008-2012 models of the Honda Accord, the A/C relay can be found in the R9 position in the engine compartment fuse box. Meanwhile, in 2006-2011 Honda Civic models, you’ll find the A/C relay in the R10 slot in the engine compartment fuse box.

Tips on How to Access the A/C Relay

Use your owner’s manual to find out where your fuse box is. Each vehicle can have multiple fuse boxes in different places, including the passenger side, the driver’s side, and the engine compartment. The A/C relay will usually be found in the engine compartment fuse box. Use the diagram on the box’s cover to locate exactly where it is. If the lid’s diagram is faded or difficult to decipher, you can try to check your owner’s manual or look online for a clearer diagram of your specific vehicle’s fuse box.

About The Authors

Written By

CarParts.com Research Team

Automotive and Tech Writers

The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

Reviewed By

Richard McCuistian

Technical Reviewer at CarParts.com

Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.