Can Brakes Cause Check Engine Light to Come On

Can Brakes Cause Check Engine Light to Come On

Having the check engine light illuminate on your car’s dashboard can be a cause for concern. It doesn’t always indicate a problem with your engine. Various components in your vehicle can trigger the check engine light. Can brakes cause check engine light to come on?

Yes, brakes can cause the check engine light to come on. Brake-related issues such as worn-out brake pads, failing components, and low brake fluid levels can trigger the check engine light. Delve deeper into this intriguing topic to ensure worry-free journeys on the road.

In this article, I will explain how brakes cause the check engine light and how I reset it easily without a scanning tool.

Can Brakes Cause Check Engine Light to Come On

Brake problems can surprisingly lead to the activation of the check engine light. Here are them.

Wear & Tear

Brake pads and rotors are essential components that can wear out over time and require replacement.


Here are some tips for reducing the wear and tear on brakes.

  1. Avoid any excessively harsh braking by following the flow of traffic.
  2. To be able to coast to a smooth, simple stop, give yourself plenty of following space from the vehicle in front of you.
  3. Get rid of any extra weight in your car.
  4. In crowded regions, maintain a low speed and prevent sudden brakes.

Failing Master Cylinder

Major system components like the master cylinder and brake booster can also malfunction as your vehicle ages. These subsystems maintain essential pressure and ensure smooth brake pedal operation.


If there is a problem with the master cylinder, it’s better to replace it than try to repair it.

Problems with Brake Booster

Brake booster problems are also caused by aging.


First, check out all the hoses connected to the brake booster. They might collapse due to aging. If the hoses are okay, the valve will be at fault. It is necessary to replace the hose or valve.

Low Brake Fluid Levels

Brake systems rely on hydraulic pressure, and brake fluid is a crucial element for their proper functioning. If the check engine light is on, one of the first things to check is the brake fluid level.


Add brake fluid to the “full” line if the level is low.

Important: If you are experiencing low brake fluid levels often, it signifies that your brake pads need replacement because they are too worn. Make sure a professional inspects your brakes.

Warning: Only use the brake fluid recommended for your vehicle. Do not use any other type.

Low brake pressure

Low brake pressure refers to a condition where the hydraulic pressure in the brake system is lower than the required level for proper brake operation.


In many cases, low brake fluid occurs due to air entering the brake system. The braking system needs to be bled out if air has gotten inside it. The brake bleeder valves should be found near the brake calipers or wheel cylinders on each wheel.

Bleed the brake system to get rid of the air and make sure only brake fluid is left in the lines by following the right procedures and getting help from a second person.

Problematic Electronic Brake Control Module (EBCM)

The EBCM is responsible for controlling various brake-related functions. They are ABS, traction control, and stability control. A malfunctioning EBCM results in the illumination of the check engine light.


First, perform a diagnostic scan using an appropriate diagnostic tool. This will retrieve any fault codes stored in the EBCM. So, you can identify the specific cause of the failure. Depending on the severity and nature of the EBCM failure, you can choose to repair or replace it.

What Are the Other Common Causes for The Check Engine Light?

Apart from brake-related issues, there are other common causes for the check engine light to come on:

IssueTrigger for Check Engine Light
Powertrain IssuesTransmission Driveshaft Axles Wheels Differential problems
Electrical ProblemsFaulty batteries Failing ignitions Troublesome alternators Temperamental circuits and connections
Malfunctioning Emissions Control EquipmentIssues with catalytic converters Problematic oxygen sensors
Fuel System IssuesDirty engine air filter Blocked fuel filter Loose gas cap
Bad Modules and SensorsMalfunctioning modules or sensors

How To Clear Check Engine Light?

My car’s check engine light came on due to a low brake fluid level. So, I added some brake fluid and reset the check engine light myself. Here is how I cleared the check engine light:

  1. First, I parked the vehicle in my garage and turned off the engine.
  2. Then I opened the hood and located the battery.
  3. Next, I identified and disconnected the negative terminal (marked “-“).
  4. I waited for 15-30 minutes to drain the residual power.
  5. Finally, I reconnected the negative terminal securely.

I started the engine, and the check engine light was cleared.

Important: Please note that you must identify and fix the underlying issue behind the check engine light before clear it.


What happens if I try to clear the check engine light without fixing the issue?

No problem. You’ll turn off the check engine light. But it will come again after a few hours or days as the underlying issue persists.

What does an orange check engine light mean?

The presence of a problem, such as an engine misfire, is indicated by a flashing orange light, which could have an impact on how the car drives or handles. Your car can start to tremble, or you might hear an unexpected change in the engine noise. You need to take your automobile in for an inspection right away if this light comes on.

How can I tell whether the engine light is a major issue?

An issue’s severity can be determined by observing the warning light. There are two ways the check engine light can appear: A less critical situation is indicated by a solid yellow/amber light. A red or flashing light indicates a serious issue that requires immediate attention.

What noise does an engine make when the oil is low?

The inside components of your engine deteriorate due to a lack of oil. You can hear the valves rapidly clicking, ticking, or clacking if you allow your oil pressure to drop. If you let it stay low, other parts, such as the crankshaft and piston rods, may begin to knock.


Can brakes cause check engine light to come on? Yes, it can cause the check engine light in the above-mentioned ways. Being aware that brake problems and other system issues can be responsible for the check engine light is crucial for handling unexpected car troubles.

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