How To Bypass ASD Relay If It's Not Working To Start The Vehicle

Various components in a vehicle help to produce power for the vehicle to run. There is a collection of systems designed in a car for that. Some of the engine systems seen on a car include the fuel and the ignition system. The fuel and ignition system work together for the vehicle to run. One of the auto parts related to the system is the ASD relay, also known as the automatic shutdown relay. Since the ASD relay is connected to the most vital systems of a vehicle, it can be affected to produce power when damaged. When the ASD relay is worn out or fails, the vehicle will face issues producing power. In such a situation, it is best to learn how to bypass ASD relay.

The ASD relay transmits power to the ignition coils and the fuel injectors in a vehicle engine. It also portrays a security feature to the vehicle that does not allow you to start your car by turning on the ignition switch, which helps to keep your vehicle safe when you are out. The safety feature of the ASD relay automatically shutdowns the switch when it detects the fuel and the ignition system in the engine is no longer running.

However, it is common for the auto parts to wear off over time. This also applies to the ASD relay that will be subject to wear off after a certain service life. That is when it is vital to bypass the ASD relay to fix the faulty ASD relay. In this article, you will learn how to bypass ASD relay in a vehicle.

How Does The ASD Relay Work?

The ASD relay of the vehicle is powered through the switch 12 volt, which produces power to the fuel system injectors and the ignition coils of the engine, a security system that shuts off the ignition system and fuel pressure when the car is off, preventing the vehicle from starting without switching on the ignition system, and in some instances, it is seen in modern vehicles the ASD relay supplying power to the oxygen sensor heater circuit.

The ASD relay is powered by connecting to the battery voltage through a terminal that supplies voltage to the coil side of the ASD relay.

What Are The Signs Of The ASD Relay Failing

Every automobile part in a vehicle has a lifespan, and it could last if worked efficiently. As previously stated, a vehicle’s ASD relay or automatic shutdown relay will wear down after certain service life. There are many signs your vehicle will exhibit when there are issues in a failing ASD relay. Below is a brief insight on each of the signs of a faulty automatic shutdown relay.

The Car Immediately Stops After The Start.

The ASD relay is connected to the fuel injectors and the ignition coil of the engine system. One of the most common issues in the vehicle was seen in the vehicle is related to the engine system that fails to produce power for the vehicle to start. It could be the lack of fuel, failing battery, loose cable wire connections, faulty alternator etc. however, a faulty ASD relay also causes issues to the engine system.

Since the ASD relay is related to the engine system, a faulty ASD relay in the vehicle can cause issues with starting the vehicle as it is one of the components related to the engine management system responsible for producing power.

No Crank Condition In The Engine

Another sign to figure out the issue of a bad ASD relay is when the crankshaft in your vehicle stops working, which does not allow the engine to crank. The crankshaft motor is a component wired to the engine system. Thus, the automatic shutdown relay issues can cause problems when starting the vehicle without a cranking noise.

Igniting Engine Light

If your engine light ignites automatically, it is probably an issue related to your vehicle’s engine system. There can be many issues related to the engine that causes a lit engine light. When the computer in the vehicle detects the issue, it transmits signals to the engine light to ignite, and one of the possible reasons is the ASD relay is failing.

When Must You Bypass The ASD Relay?

It is vital to educate yourself or have basic mechanical knowledge before bypassing an ASD relay, making it convenient to know when to bypass an ASD relay.

When bypassing an ASD relay, remember to maintain the terminal resistance using an ohmmeter. Please take note of the battery and ensure it is draining.

Some pins control the power of the ASD mode in the car; during the bypass relay, the pins must be temporarily put into the ASD relay.

Following the steps and understanding when to bypass the relay is essential. If unsure about the proceeding, it is better to consult a professional.