How to Replace an Electronic Control Relay

Schedule ECM-Power Relay Replacement
Service Area

$91.97 - $164.37

Price range for all vehicles
Average rating from 11 customers who received a ECM-Power Relay Replacement.

Electronic relays are used throughout your vehicle. They control everything from electric windows to the electric fuel pump. They are used as a low-voltage trigger for high voltage consuming components. By only triggering components as needed, relays help your vehicle conserve energy. Since the internals of a relay are both electronic and mechanical, think of it as a switch that uses electricity to “switch” itself on. This in turn switches on the component it controls. If one of the electronic components in your car is not working, it is possible that it is time for a new electronic control relay.

Part 1 of 1: Replacing the electronic relay

Materials Needed

common interior fuse relay panel location

Step 1: Locate the relays. With the increasing amount of electronics in modern vehicles, it is possible your vehicle may have more than one fuse/relay box.

There can be multiple locations underhood as well as inside the passenger compartment or trunk.

pulling out the relay

Step 2: Replace the faulty relay. With the key in the off position, remove the faulty relay.

It should simply unplug by hand. Set the faulty relay aside.

Insert the new relay in the correct position. Use as little force as required to remove and install relays as automotive wiring and connectors can be delicate and brittle with age.

  • Note: Older vehicles may have relays mounted to the firewall or inner fender well. Consult your owner’s manual or shop manual for exact locations.

firewall mounted relay

Step 3: Verify the repair. Turn the key to the on position or start the vehicle to verify the component that the relay was for is functioning properly.

Once verified, replace any covers or panels you removed for access.

Because they control many different parts of the car, it can be difficult to tell whether or not your issue is caused by a bad electronic control relay. If you need a diagnosis or relay replacement for your vehicle, contact YourMechanic today to arrange for a mobile technician to come to your home or office.


Next Step

Schedule ECM-Power Relay Replacement

The most popular service booked by readers of this article is ECM-Power Relay Replacement. Yourmechanic’s technicians bring the dealership to you by performing this job at your home or office 7 days a week between 7AM-9PM. We currently cover over 10k cities and have 100k+ 5-star reviews... LEARN MORE

SEE PRICING & SCHEDULING

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Recent ECM-Power Relay Replacement reviews

Excellent Rating


YourMechanic ECM-Power Relay Replacement Service

Average Rating

4.4/5

Number of Reviews

11

Rating Summary
9
0
0
1
1
9
0
0
1
1

Kyle

11 years of experience
137 reviews
Kyle
11 years of experience
Jeep Grand Cherokee - ECM-Power Relay - Philadelphia, Pennsylvania
Kyles was really a gem and gave me some important info about my car including past work from another shop that should have been better and cheaper . He seemed to really care not only about cars but actually helping people too.

Enrique

20 years of experience
244 reviews
Enrique
20 years of experience
Pontiac Torrent - ECM-Power Relay - Davenport, Florida
Great service again, thanks Ricky.

Mathew

16 years of experience
39 reviews
Mathew
16 years of experience
Dodge Ram 1500 - ECM-Power Relay - Holiday, Florida
Within 10 Minutes of me requesting a mechanic i had a message from mathew. He was very curteous communicated well and did the job very well. I am very please with this service and will be deffinatly using it again. I am just happy my truck is back up and running , He saved the day and made a bad situation better so that my father and i had our vehicle up quick.

Charles

33 years of experience
342 reviews
Charles
33 years of experience
Ford Explorer - ECM-Power Relay - Georgetown, Texas
Charles worked quickly and was very professional. He diagnosed my problem within minutes and was able to come back and fix it the next day. I am very happy with him.

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE