No, Modern cars have to have the ECU as it controls everything the engine does hence Engine Control Module.
When the fuse blows, the engine control unit/module loses power and is unable to control the ignition process, the throttle (drive by wire) shuts and fuel ceases to be commanded to move. No spark is commanded to fire. In short, the engine dies and the car goes nowhere.
While a modern car may be drivable with a faulty or defective ECU, it will be impossible to drive one without an ECU at all. For instance, as a car's ECU will control the car's electronic fuel injection system, the engine won't be able to run if it's missing this component.
Yes, if the fuse does not relate to the drive chain. Like your lights might not work, or the wipers or something else.
As long as all the power connections are connected on this drawing, including feed sensors not depicted in the drawing, the check engine light should turn off. The ECU constant power supply is protected by a 7.5A fuse located on D1 on the ECU, not shown in the images. The 7.5A fuse should be unplugged to reset the ECU.
The easiest way to perform an ECU reset is by removing the fuse from the fuse box. It is a very simple process, and all you have to do is pull out the car key, remove the fuse from the fuse box, and then put it back after about 15 to 20 seconds. Doing this clears any long-term memory stored in the car's ECU.
For example, poor performance or unexplained drops in fuel economy or efficiency are often related to onboard car computer problems, or faulty ECU issues. A damaged ECU can cause problems when shifting gears in an automatic transmission, or cause sudden jerking or stopping that's similar to transmission problems.
In many cars, every fuse does something necessary, and a missing fuse will mean some feature of the car doesn't work. Some cars have a few spare fuse slots that do nothing and come with spare fuses. That means you can move a spare to an active position. Obviously, an empty spare slot doesn't cause any kind of problem…
Blown Fuse
If there has been a surge, a fuse that controls the fuel pump, the fuel injectors, or another component that's vital for your car's functioning, it may be the cause of your car's failure to start.
Your engine could cut while you're driving, as well, if the ECU malfunctions. Once you've coasted to a stop, you won't be able to get your automobile started again. It's a good idea to get your engine control module tested at the first sign of trouble.
Engine control unit (ECU) is an electronic control unit that ensures the optimal work of an internal combustion engine. It controls fuel supply and injection, fuel-to-air ratio, ignition, idle speed, and the timing of valve opening and closing.
These may include poor engine performance, stalling, misfiring, rough idling, poor fuel economy, check engine light, or no start condition. Some of these symptoms may also indicate other issues, such as faulty sensors, wiring, or spark plugs, so you need to rule them out before blaming the ECU.
ECM stands for Engine Control Module, and ECU is short for Engine Control Unit. These two acronyms represent the same component and are used interchangeably.
The electronic control unit (ECU) used in today's cars and trucks is used to control the engine and other components' functions. An ECU is a computer with internal pre-programmed and programmable computer chips that is not much different from a home computer or laptop.
While most of us know that without a fuse, a household plug, and whichever appliance it's attached to, won't work. A question frequently asked is “How does a fuse work, what is its purpose, and why it is important to fit the correct one?”
But a blown fuse No. 38 becomes a likely candidate causing a loss of power to the transmission solenoids.
Remove the fuse from its holder. In some cases you may need a small screwdriver to unscrew the fuse holder cap. Look at the fuse wire. If there is a visible gap in the wire or a dark or metallic smear inside the glass then the fuse is blown and needs to be replaced.
If your vehicle won't start, it's usually caused by a dying or dead battery, loose or corroded connection cables, a bad alternator or an issue with the starter. It can be hard to determine if you're dealing with a battery or an alternator problem. Here's how to know which one is the culprit.
This is normally caused by one the following issues: Defective battery. Bad alternator. A blown fuse.
(1) Water Damage: One of the most common causes of ECU failure is water damage. This can occur if the vehicle has been exposed to heavy rain, driven through deep water, or if there is a leak in the car's cabin or engine bay.
The main disadvantage to repairing an ECU is that they are highly advanced pieces of technology that require specialized knowledge. Because they affect nearly every other component in your engine, you need to be sure that the computer is repaired correctly and that requires confidence in the shop doing the work.
Yes. There VIN number of the vehicle must be programmed into the new ECU. If it's a factory ( OEM ) replacement, the whole ECU must be programmed. The new ECU won't know a lot of stuff about the car until it's programmed; things like, which engine is installed, which transmission is installed and many other things.