Infiniti QX4 ECM-Power Relay Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(155)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(155)

ECM-Power Relay Replacement Service

How much does a ECM-Power Relay Replacement cost?

On average, the cost for a Infiniti QX4 ECM-Power Relay Replacement is $114 with $19 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2002 Infiniti QX4V6-3.5LService typeECM-Power Relay ReplacementEstimate$168.95Shop/Dealer Price$199.94 - $253.54
1998 Infiniti QX4V6-3.3LService typeECM-Power Relay ReplacementEstimate$238.95Shop/Dealer Price$292.47 - $413.59
1999 Infiniti QX4V6-3.3LService typeECM-Power Relay ReplacementEstimate$238.95Shop/Dealer Price$292.47 - $413.59
2001 Infiniti QX4V6-3.5LService typeECM-Power Relay ReplacementEstimate$148.95Shop/Dealer Price$179.93 - $233.52
2003 Infiniti QX4V6-3.5LService typeECM-Power Relay ReplacementEstimate$133.35Shop/Dealer Price$160.50 - $202.44
2000 Infiniti QX4V6-3.3LService typeECM-Power Relay ReplacementEstimate$238.95Shop/Dealer Price$292.47 - $413.59
1997 Infiniti QX4V6-3.3LService typeECM-Power Relay ReplacementEstimate$243.95Shop/Dealer Price$297.23 - $418.17
Show example Infiniti QX4 ECM-Power Relay Replacement prices

What is the ECM-Power Relay all about?

Vehicle development has evolved over the past several decades to a point where it seems every vehicle function is controlled by a computer, right down to the engine itself. This is actually the case for the engine and its related functions as it is controlled by the engine control module, or ECM. The ECM monitors and adjusts operation and power distribution to the fuel supply and injection systems, engine timing, exhaust gas recirculation, emissions, ignition system, and several other systems. In order to dispense power to operate these other systems, the engine control module requires power itself.

The power distribution center, or fuse block, located under the hood houses most or all of the vehicle’s fuses and relays. It contains a relay for the ECM that is powered up when the ignition key is turned to the on position. This ECM power relay acts as a switch that supplies power to the ECM. When the ignition is turned off, power switches inside the ECM relay and it no longer receives battery power. If the ECM power relay stops switching as it should, you will experience vehicle problems. When the relay is stuck open, no power will be delivered to the engine control module and the vehicle won’t start. If the relay is stuck closed, constant power will be sent to the ECM even with the engine turned off and the battery will drain.

Keep in mind:

  • The battery should be disconnected any time the electrical system is being serviced.
  • There are several problems which can cause your vehicle not to start, with the ECM power relay being one of them. Have the problem diagnosed by one of our expert technicians.

How it's done:

  • The ECM-power relay is verified that it needs to be replaced. The relay is located in the engine main fuse relay control box.

  • The defective ECM-power relay is removed from the control box by pulling it straight up and out of socket.

  • The new ECM-power relay is installed into the socket and the engine scanned for codes.

  • The engine is started and the ECM-power relay is tested for proper operation.

  • The vehicle is road tested for proper operation of the ECM-power relay and is then checked for codes.

Our recommendation:

The ECM power relay should last the lifetime of your vehicle unless there is a power distribution problem or moisture that causes it to fail. If your vehicle won’t start, have one of our expert technicians diagnose the problem and replace the ECM power relay if necessary.

What common symptoms indicate you may need to replace the ECM-Power Relay?

  • Engine will not start when the key is turned.
  • Engine doesn’t turn over when ignition is on.
  • Check Engine light is on.
  • Battery drain which may leave it weak or dead.

How important is this service?

Although it is extremely unlikely the ECM relay will cause your vehicle to stall or create a safety concern, your vehicle may not start or the battery may die while the ignition is off. In either case, you will need to replace the ECM relay.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Infiniti mechanics

Real customer reviews from Infiniti owners like you.

Excellent Rating

(155)

Rating Summary
147
2
2
0
4
147
2
2
0
4

Christopher

20 years of experience
314 reviews
Christopher
20 years of experience
Infiniti QX4 V6-3.5L - Control Arm Assembly Replacement (Rear Upper Left, Rear Upper Right, Rear Lower Left, Rear Lower Right) - Brandon, Florida
Chris, was amazing. He was prompt, courteous, knowledgeable about what he was doing. What a nice guy.

Kyle

13 years of experience
145 reviews
Kyle
13 years of experience
Infiniti QX4 V6-3.5L - Canister Purge Solenoid - Dallas, Texas
Very knowledgeable and efficient.

Kevin

33 years of experience
234 reviews
Kevin
33 years of experience
Infiniti QX4 V6-3.5L - Battery Cable Replacement (Positive) - Los Angeles, California

Derek

23 years of experience
71 reviews
Derek
23 years of experience
Infiniti QX4 V6-3.5L - left headlight ballast - Littleton, Colorado
.

Excellent Rating

(155)

Rating Summary
147
2
2
0
4
147
2
2
0
4
Number of Infiniti QX4 services completed
1705+
services done by our mechanics
TOTAL NUMBER OF EXPERT Infiniti MECHANICS
900+
experts on our platform

Recent articles & questions

The Guide to Right-of-Way Laws in Illinois
In In Illinois, right-of-way laws are designed to facilitate the smooth movement of traffic and ensure the safety of both motorists and pedestrians. When you consider right-of-way laws, you can see that they are founded by common sense and courtesy....
Disabled Driver Laws and Permits in Vermont
In In the State of Vermont, the Department of Motor Vehicles (DMV) provides special license plates and placards for people who have disabilities. If you have a disability that qualifies you for a plate or placard, you can apply for...
The Difference Between Shocks and Struts
Shocks and struts are often referred to interchangeably as they perform the same function, however, they differ in suspension system design.

Ignition tumbler stuck and needs replacement.

The tumblers are part of the ignition switch assembly on these vehicles. This part must be replaced as a unit. This particular part malfunctioning is a common problem on late 1990's Mercedes Benz products. Have a mechanic who is familiar...

Tires not rolling

It is very possible the rear drum brakes are locked up. The rear wheels would need to be removed and the drums loosened up to restore rotation. You may want enlist the help of a mechanic, such as one from...

had to replace rear brake caliper, is parking brake cable just worn out? Cant get it back on caliper!

You should install the brake cable before installing the brake caliper. You may have to turn in the caliper again to get it back over the rotor when installing it. If you want to have this done for you, a...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com