P1388 Auto Shutdown (ASD) Relay Control Circuit Open Or Shorted

The P1388 Auto Shutdown (ASD) Relay Control Circuit is responsible for controlling the power supply to the vehicle’s ignition system. When this circuit has an open or shorted condition, it can cause a variety of problems such as engine stalling, no-start conditions, and erratic performance.

The ASD relay control circuit consists of several components including fuses, relays, wiring harnesses, and sensors.

If any one of these components fails due to either a mechanical issue or electrical issue then the entire system will be unable to provide proper power delivery resulting in an open or shorted ASD relay control circuit. As soon as possible it is essential that any faulty component must be identified and replaced so that normal operation can resume with minimal downtime.

If you’ve ever experienced a car that won’t start, then you know the importance of having a reliable P1388 Auto Shutdown (ASD) relay control circuit. This important component helps protect your vehicle from damage due to short or open circuits. In this blog post, we will discuss what an ASD relay is and how it works to keep your car running smoothly.

An ASD relay is an electronic switch that controls current flow within the ignition system of an engine. It ensures safe operation by regulating electricity between the starter motor and other components in the electrical system such as fuel injectors, spark plugs, and wires.

The relay also acts as a failsafe mechanism in case something goes wrong with one of these components—it will shut off power if there’s too much load or if something shorts out so no further damage can occur.

When it comes to diagnosing problems with your ASDs, it’s important to understand how they work and when they fail. If there are signs that your ASDs are malfunctioning (like difficulty starting), then it could be because of either an open or shorted control circuit in the system.

P1388 Auto Shutdown (ASD) Relay Control Circuit Open Or Shorted

P1388 Jaguar Code

If you’re a Jaguar owner, chances are that you’ve heard of the P1388 code. This is an error code generated by your vehicle’s onboard diagnostic system (OBD-II) and it indicates a number of potential issues with your car. The good news is that this code can be diagnosed relatively easily and most times don’t require major repairs or significant downtime for your car.

The P1388 Jaguar Code stands for Powertrain Control Module (PCM) Internal Error – Engine Torque Signal Not Received By PCM. In other words, there’s something wrong with the way power is being sent to the engine from the PCM or engine control module (ECU).

It could be either an issue with a wiring connection, faulty sensors within the system, or even software programming errors in either module. One of the first steps towards diagnosing this problem would be to check all connections related to both modules including grounds as well as any wires leading directly into them.

Read More About: P1281 Engine Operating Temp Below Acceptable Range

How to Reset Asd Relay

If you’re having trouble with your ASD (automatic starter disconnect) relay, then resetting it may be the answer. An ASD relay is a device that helps control the electricity in an automobile engine, and if there’s a problem with it then your car won’t start.

Resetting the ASD relay can fix this issue in some cases, so if you know how to do it correctly then you may be able to get your car running again quickly and easily.

Here are the steps for resetting an ASD relay:

1. Locate Your Relay

The first step is finding where your ASD relay is located. It should be close to or on top of the battery in most cars. Once found, make sure all of its wires are properly connected before proceeding further.

2. Disconnect the Power

Unplug any power source from the vehicle by removing either negative or positive cables from both ends of their respective batteries terminals; this will remove all power from the vehicle and allow for a clean reset process without interference from outside sources such as headlights etcetera which could cause issues down line during testing/resetting/replacing parts related to starting up vehicles safely.

P1388 Jeep

If you’re looking for a rugged, reliable, and capable off-road SUV, the P1388 Jeep is an excellent choice. Developed by American Motors Corporation (AMC) in 1979, this vehicle was designed to be a tough workhorse that could tackle any terrain with ease.

The P1388 Jeep has become one of the most popular models among car enthusiasts due to its powerful engine and durable construction.

In this blog post, we will provide detailed information about this impressive vehicle so you can decide if it’s right for you. The P1388 Jeep is powered by a 4.2L inline 6-cylinder engine that produces 135 horsepower and 235 pound-feet of torque. This gives it plenty of power to take on steep inclines or navigate rough terrain without breaking a sweat.

It also features a four-wheel drive system with high/low range gearing which provides maximum traction when needed most – making it perfect for off-roading adventures!

Additionally, the suspension system includes heavy-duty coil springs at both ends as well as sway bars in front and rear; these components help keep the ride smooth even over bumpy trails or roads.

Bad Auto Shutdown Relay Symptoms

If your vehicle has a bad auto shutdown relay, it can cause a variety of annoying symptoms that can be difficult to diagnose. To help you understand what might be going on with your car, here’s an overview of the most common bad auto shutdown relay symptoms and how you can identify them.

One of the first signs that something is wrong with your auto shutdown relay is when you experience difficulty starting or turning off the engine.

When this happens, it could indicate that there is an issue with the way in which power to the ignition system is being regulated by the auto shutdown relay. It may also make it harder for fuel to enter the combustion chamber when attempting to start up your vehicle. If this symptom persists, then it’s likely time to replace your auto shutdown relay as soon as possible.

Another common symptom is if your vehicle stalls out while driving or idling at traffic lights and stop signs. This typically occurs because there isn’t enough power being supplied by the auto shutoff switch due to a faulty connection or malfunctioning component within its circuitry.

How to Bypass Asd Relay

If you’re a car enthusiast and have been trying to bypass your ASD (Automatic Shutdown Relay) but feel like all the information out there is either outdated, confusing, or just not working, then this blog post is for you.

With some basic knowledge of vehicle wiring and a few tools, you can easily bypass the ASD relay on your own with no hassle. First, let’s discuss what an ASD relay does in order to better understand how to properly bypass it.

An Automatic Shutdown Relay (ASD) is designed to prevent unintended starting of the engine by controlling fuel flow into the intake manifold or cylinder head depending on certain conditions such as voltage levels from sensors located throughout your vehicle’s electrical system.

This ensures that only when specific criteria are met will fuel be injected into your engine allowing it to start up reliably when desired. Now that we know what an ASD relay does, let’s go over how exactly one would go about bypassing it in their car:

Locate where the ASD relay is installed in your vehicle; this typically varies from model to model so consult with a manual or online resources if needed.

How to Test Asd Relay

If you are in the process of testing an ASD relay, then you have come to the right place! An Automatic Switching Device (ASD) relay is a type of switch used in electrical systems. It is designed to provide automatic switching between two different sources of power.

The switches are usually found in high-voltage applications and can be used to control both AC and DC systems. Testing an ASD relay can seem intimidating but with the right steps and precautions, it is relatively simple. This blog post will cover all aspects of how to test your ASD relay so that you can ensure its safety and proper functioning.

The first step when it comes to testing an ASD Relay is preparing for the test itself. Since relays are responsible for controlling power sources, it’s important that all safety measures are taken prior to beginning any tests or observations on them – this includes making sure everything is properly grounded before touching any part of the system or device being tested.

Additionally, if applicable disconnect any interfaces from the system before continuing with testing as these could interfere with results obtained during observation/testing procedures.

Auto Shutdown Relay Clicking

When you hear a clicking sound coming from your vehicle’s engine, it can be alarming and indicate a serious issue. One of the most common causes of this noise is auto shutdown relay clicking. This type of problem occurs when an electrical component in the vehicle called an auto shutdown relay fails to function properly.

The purpose of an auto shutdown relay is to shut off power to the ignition system if there is a malfunction that could damage other components or put drivers at risk.

When this happens, the clicking sound you hear is caused by electricity passing through the contacts in order to keep them open as long as possible until they are eventually forced closed by current overload or thermal overload protection built into the circuit design.

In some cases, it may be possible for technicians to fix these problems without replacing parts; however, more often than not replacement will be required in order to restore the proper operation of your vehicle’s electrical system.

If ignored, further damage can occur which increases repair costs and puts safety at risk so it’s important that any suspected issues with your auto shutdown relay are addressed immediately.

P1388 Auto Shutdown (Asd) Relay Control Circuit Open Or Shorted

What are the Symptoms of a Bad Auto Shutdown Relay?

If your car isn’t shutting down properly, it could be due to a bad auto shutdown relay. The auto shutdown relay is an essential component of the electrical system in a vehicle, and when it’s not functioning correctly, your car will have difficulty starting up or completely shutting down while running. Here are some symptoms that can indicate your auto shutdown relay is failing:

1. Difficulty Starting

If you find that your engine won’t start up as quickly as usual or even fails to start at all, this could be an indication that the auto shutdown relay isn’t working properly. When the auto-shutdown doesn’t kick in during startup, the engine may struggle to get going or fail entirely due to insufficient voltage from the battery.

2. Unusual Shutdowns

If you notice that your vehicle shuts off seemingly randomly for no apparent reason, this could also point towards a faulty module within the electric system such as an issue with the auto-shutdown relay itself.

This symptom could also occur if there is any kind of loose connection somewhere along the wiring harness connected to this important component.

What Does an Asd Relay Do?

An ASD relay is an automatic shutdown device that is used to protect electrical equipment from damage due to overload or short circuits. The purpose of an ASD relay is to detect when a current or voltage level exceeds the normal operating range and then shut down the system in order to prevent any further harm.

ASD relays are often found in industrial settings where high-powered machinery and other sensitive electrical components need protection from too much power being drawn at once.

They can be used as part of an overall safety system that includes fuses, breakers, and other protective devices. In some cases, they may even be integrated into the control logic of a machine itself so that it can automatically shut off if necessary.

When an ASD relay detects something amiss with the current or voltage levels in its circuit, it will send out a signal which triggers either a manual or automated shutdown process depending on how it has been configured.

Manual shutdowns require someone to manually reset the device after shutting down while automated shutdowns are programmed directly into the control logic of machines such as electric motors so they automatically turn off as soon as something goes wrong with their circuits.

Where is the Auto Shutdown Relay Dodge Dakota?

If you own a Dodge Dakota, then you likely know that one of the parts to keep in check is its auto shutdown relay. Unfortunately, this part can sometimes be tricky to find—especially since it varies depending on your specific model year.

In this blog post, we’ll provide an overview of where exactly the auto shutdown relay for Dodge Dakota models is located so that you can easily locate and replace it if needed.

First off, the auto shutdown relay for your Dodge Dakota will generally be found under the hood near other relays or fuses. Depending on which model year and type of engine you have in your vehicle (V6/V8), however, there may be slight variations as to where exactly it’s situated.

For instance, some models may have their relays located towards the front-right side of the engine bay while others may feature them closer towards the back-left area instead.

Additionally, some older models might even require you to remove a plastic cover before being able to access any relays or fuses inside at all!

What is Asd Relay Pt Cruiser?

If you’re a car enthusiast, then the ASD relay PT Cruiser is probably something that you’ve heard of. This vehicle was created by Chrysler and released in 2001 as a replacement for the aging Plymouth Voyager minivan. The ASD relay PT Cruiser was designed to be a more stylish and versatile option compared to other cars in its class, while still maintaining practicality.

The main feature that sets this vehicle apart from others is its Automatic Shut Down (ASD) system. This system was developed by Chrysler to reduce fuel consumption and improve engine efficiency. When the ignition key is turned off, all electrical accessories are immediately shut down; including lights, power windows, radio, etc. saving energy and increasing your car’s performance overall.

In addition to its unique automated shutdown system, the ASD relay PT Cruiser also features an array of comfort options such as air conditioning/heating systems, adjustable seating positions with lumbar support, cruise control, dual-zone climate control, power locks/windows/mirrors, AM/FM stereo with CD player and much more. It also has plenty of storage space thanks to foldable rear seats which can expand or collapse depending on your needs at any given time.

STRANDED by the ASD Circuit! Here is HOW we Tested and Fixed it! Easy!


If you’re having trouble with your vehicle staying on after turning the key, it’s possible that the P1388 Auto Shutdown (ASD) Relay Control Circuit has been affected.

This is a safety feature that shuts off power to certain parts of your vehicle when you turn off the ignition. If this circuit is open or shorted, it can cause issues like stalling and the engine not restarting.

To fix this issue, check for any loose wiring connections, damaged relays or fuses, and corroded terminals in the ASD circuit. If everything looks ok there then you might have to replace some components of the relay control circuit itself. In either case, make sure to take extra caution as automotive electronics can be dangerous if handled improperly!