Symptoms of a Bad or Failing Automatic Shutdown Relay

Our certified mechanics come to you · 12-month, 12,000-mile warranty

GET A QUOTE Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of Replacing a Bad or Failing Automatic Shutdown Relay

Common signs include the car starting but stalling immediately, the Check Engine Light turning on, and the engine not cranking when turning the key. Our certified technicians can come to you and diagnose the problem. You will receive a $30 credit towards any follow-up repairs that result from the diagnostic. Following are example prices for Automatic Shutdown Relay Replacement. Click on the button below to get an upfront quote for your car.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2006 GMC Savana 1500 $83 $12.93 $70.00 31% $120.43
2005 GMC Envoy XL $83 $12.93 $70.00 31% $120.43
2014 Volvo S60 $83 $12.93 $70.00 31% $120.43
2015 Mercedes-Benz GL550 $83 $12.93 $70.00 31% $120.43
2013 BMW 528i xDrive $83 $12.93 $70.00 31% $120.43
2006 Porsche Cayenne $83 $12.93 $70.00 31% $120.43
GET A QUOTE FOR YOUR CAR Get a fair and transparent estimate upfront

How to Diagnose a Bad or Failing Automatic Shutdown Relay?

Automatic Shutdown Relay

The electronic engine management systems on modern vehicles are made up of sophisticated fuel and ignition systems that work together for the vehicle to run. Both systems are made up of various components that all work together to provide timed fuel and ignition for the engine. One of these components is the automatic shutdown relay, commonly referred to as the ASD relay. The ASD relay is responsible for supplying switched 12-volt power to the vehicle’s injectors and ignition coils, allowing them to provide fuel and produce spark.

In certain cases, the ASD relay will also provide power for the vehicle’s oxygen sensor heater circuit as well as function as an automatic shut down switch that will shut off the fuel and ignition systems when the computer detects that the engine is no longer running. As with most electrical components, the ASD relay is subject to the normal wear and tear associated with normal service life, and when it fails, it can cause problems for the entire vehicle. Usually, when the ASD relay has failed or is having a problem the vehicle will produce a few symptoms that can alert the driver that a problem has occurred that should be serviced.

1. Car starts but immediately stalls

One of the most common symptoms of a bad ASD relay is an engine that will start, but stall out almost immediately, or at random times. The ASD relay supplies power to the vehicle’s ignition coils and fuel injectors, which are some of the most important components of the entire engine management system.

If the ASD is having any problems that interfere with its ability to supply power to the injectors, coils, or whatever other circuits it may feed, then those components may not function properly and problems may arise. A car with a failing or faulty ASD relay may stall immediately after starting, or randomly while operating.

2. Engine does not crank

Another symptom of bad ASD relay is an engine that will not crank at all. As many of the engine management systems are wired together, if any of the circuits that the ASD relay provides power for go out as a result of a bad ASD relay, then it may affect other circuits, one of them being the starting circuit. A bad ASD relay can indirectly, and sometimes directly, cause a starting circuit to not have power, which will result in a no crank condition when you turn the key.

3. Check Engine Light comes on

Another symptom of a possible problem with the ASD relay is an illuminated Check Engine Light. If the computer detects that a problem with the ASD relay or circuit has occurred, it will illuminate the Check Engine Light to alert the driver of a problem. The Check Engine Light can also be activated for a wide variety of other reasons, so it is important to have the vehicle scanned for trouble codes to determine what the exact cause of the problem may be.

As the ASD relay is what supplies power to some of the engine’s most critical engine management components, it is a very important part to the overall functionality of the vehicle. For this reason, if you suspect that the ASD relay has failed, or is having a problem, have the vehicle serviced by a professional technician, such as one from YourMechanic to determine if the car needs an automatic shutdown relay replacement, or if another issue needs to be addressed.

relays
fuel system
ignition system

Fast and easy Automatic Shutdown Relay Replacement service at your home or office.

GET A QUOTE FOR YOUR CAR
Get a fair and transparent estimate upfront

More related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...
P0291OBD-II Trouble Code: Cylinder 11 Injector Circuit Low
P0291 code definition When your vehicle’s PCM registers the P0291 code, it means that a voltage reading came from the fuel injector circuit – for cylinder number 11’s fuel injector –...

Related questions

Q: I must replace the fuel pump every few weeks

Hello. If you are experiencing repeated failure of brand new pumps from the same manufacturer, then it may be possible that you are simply running into low quality parts. I would inquire with the seller of the pumps if they've...

Q: Not getting power from the fuel pump driver module to fuel pump.

Hi there. If you are getting voltage to the inertia switch, the check the IFS switch and see if you are getting voltage. If there is no voltage, then the switch needs replaced. If there is voltage present, then either...

Q: How do I unlock the ignition?

When your car is turned off, the steering wheel can lock into place. When the steering wheel is locked, the ignition will be locked as well, and you will not be able to turn the ignition past Lock. When this...

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.

1-800-701-6230 · hi@yourmechanic.com