Jeep compass shuts off while driving

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Jeep compass shuts off while driving. 2 posts · Joined 2017. #1 · Jul 25, 2017. Hi all! New to this forum and obviously a brand new Jeep Compass owner. Just wondering if anyone has any constructive criticism about this engine auto off/on. Whenever I come to a full stop even for a brief second the engine shuts down and restarts when I take my foot off the brake and accelerate.

Check the battery cables, make sure they're clean and tight. Also check the battery cable connection to the fuse box / TIPM. Sometimes problems with the engine bay grounds cause headlights to go out, but they tend more to go out and stay out rather than flicker on and off. The lights not shutting off could be a TIPM issue.

That caused a short that cut the ignition out when the harness made contact. After the bounce, the harness would move enough to not make contact any more and the engine would start running like nothing happened. Some electrical tape was all that was needed to fix the problem. ****************. 05 TJ Rubicon / 4.0L / 6 Spd.11 Reasons Why Jeep Wrangler Shuts Off While Driving. 1. Faulty Crank Position Sensor. If the Jeep Wrangler dies but restarts after a few minutes, the problem is with the crank sensor. As its name implies, It's a sensor that monitors the crankshaft's position. The ECU then uses this information to perform a few critical functions in the engine.Jeep Compass: Battery Draining While Parked Causes. If your vehicle is running fine when you park it, and it won't start, there is an issue with the charging system (alternator, battery, or battery cables) or a parasitic power draw. ... verify that the dome light is shutting off when you close the doors. ... "MAZDA6 shuts down while driving ...1999 JEEP GRAND CHEROKEE. 160,000 MILES. Complete engine shut down when driving car at slow or highway speeds. Loose all power. All gauges go dead. Let it sit for ~ 10 min. And starts up again: Have replaced the following: C1 Wiring Harness to computer (all terminals), have replaced fuel filter, crank shaft pos. Sensor, ignition switch ...U.S. auto safety regulators have closed an investigation into complaints that engines on some small Jeeps can shut down while being driven. The National Highway Traffic Safety Administration said ...The 2017 Jeep Compass has 4 problems reported for vehicle shuts down while driving. Average failure mileage is 46,750 miles. CarComplaints.com : Car complaints, car problems and defect information

Sour gas is one of the most common causes of a vehicle shutting off when driving. This is because gasoline can become contaminated with dirt, water, or other substances, which can cause your engine to shut off while driving. Bad gas could be the issue if your Renegade shuts off a few minutes after you last filled it up.The 2019 and 2020 Jeep Compass are powered by the naturally-aspirated 2.4-liter TIGERSHARK I-4 engine. 2019 Jeep® Compass Trailhawk. (MoparInsiders). Owners who have experienced such a problem can contact the NHTSA Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.The Jeep was dropped off at JEEP Chelmsford ESSEX for the recent global WK1 - WH1 recall, for the transfer case gearbox issue, so I asked the service staff for the additional cost to reflash my Front Control Box to sort out the flickering lights problem. Result of my request was no communication. They went ahead regardless. Typical main …A Jeep Wrangler needs the correct ratio of 14.7–to–1 air/fuel necessary for proper engine operation. An incorrect ratio of fuel and air will cause the Jeep to Jerk under acceleration. Other common causes for Jeeps to jerk while accelerating are: Bad alternator. Bad Upstream O2 sensors.2007 Jeep Patriot. The Starter was replaced April of this year - It just died one day. 10 days ago I'm driving down the road and it engages. I pull over and turn off the car. It continues to turn the engine over even after the key is complete removed. Burns up and stops after about 1 minute. Mechanic says it was a defective starter and replaced.

Sounds like something is getting hot and tripping an automatic circuit breaker, or your headlight switch may have an auto reset in it, which will reset after the overload cools off. Try checking all connections for any bad connections. The headlight sockets are a good place to start, make sure they are clean and tight to the headlight.35 posts · Joined 2008. #4 · Jul 24, 2009. How much weight do you have on the key ring. Try this start the jeep, turn on the radio with the jeep running pull out on the key slightly if the radio shuts off switch is getting loose. I only run the ignition key on the ring and never have the problem but if i pull on the key it will shut off the ...The contact owns a 2012 Jeep Compass. While driving various speeds, the vehicle shut off without warning and the check engine and battery warning indicators illuminated. The vehicle was taken to an independent mechanic where the failure was diagnosed as an electrical issue. The battery and alternator were replaced, but the failure recurred.#1 · Oct 27, 2020. I have a 2020 Jeep Compass that while driving shuts off without warning and the radio keeps going black. I had this happen on the freeway at approx 65 mph, on the street at about 45 mph and while turning into a fast food drive through and while backing up in reverse.Dec 6, 2022 · December 6, 2022 at 14:31. The NHTSA says that it has 15 complaints from Jeep Compass owners saying that their vehicles are shutting off unexpectedly. The nature of the malfunction is similar ...

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This Cherokee with low miles stalls out when driving and dealership says it is because of low oil and it is acceptable that the 2.4L use a quart of oil every 1,000 miles so that means the jeep would be out of oil after 5,000 miles. That is no one's world is acceptable. This engine should not use any oil at all.trnj9856 Discussion starter. 1 post · Joined 2010. #1 · Aug 30, 2010. I have a 2007 Jeep Compass with about 75,000 miles on it. Over the past couple months it has stalled on me twice. The first stall occurred while waiting at a red light, which was no problem. The second stall however occurred while slowing down from 65 mph to 45 mph.2. Hold down the Green Phone and Voice Recognition buttons for 30 seconds (push the buttons immediately after pushing the start button, before the Uconnect system has a chance to fully boot). 3. Let go of the two buttons. 4. Turn vehicle off and wait for the Uconnect screen to go black.Jeep Compass 2018 shutting down while driving. Jump to Latest Follow 21 - 22 of 22 Posts. 1 2. S. shawna6877 · Registered. Joined Jan 15, 2024 · 0 Posts ...Mar 19, 2021 · 3 posts · Joined 2021. #1 · Mar 17, 2021. okay guys i desperately need help. i bought my wrangler a year and a half ago but the past 6 months it’s been in and out of the shop as i purchased an extended warranty. 6 months ago the car would act like it was shutting off and all my gauges would go to zero and the car would slow for a brief ...

The 2007 Jeep Compass has 10 problems reported for engine stalls/shuts down while driving. Average failure mileage is 87,450 miles. Add your complaint? Back; ... Multiple times - car shuts off while driving - have had it in to car repair shops multiple times - can't find problem - happens most often if car is below 1/2 tank - happens less ...I was driving to work last week and the engine suddenly stopped on my 2005 Jeep Wrangler TJ while I was driving. I started the car, went only a 1/4 mile down the road and it stopped. I managed to steer over to the side of the road and restarted the engine. It started right away and then about a mile down the road it sounded hesitant once more ...#1 · Feb 10, 2022. 2014 JKU Sahara automatic transmission. No new modifications in quite some time. While I am driving the engine sometimes dies. I put it in neutral and while I am coasting I restart it just fine, put it …Grand Cherokee Limited 3.0L Ecodiesel. Automatic transmission. 33,600 miles. Our 2014 Jeep with the EcoDiesel has stalled three times now. Once when driving 75 mph on a freeway in the rain, once when driving 65 mph on the freeway in dry conditions, and once in an intersection while pulling away from a stop sign in dry conditions.Mike D. Discussion starter. 1 post · Joined 2021. #1 · Jan 12, 2021. Hello, I have issues with my Jeep Compass 2007. The engine just shuts off while driving. It happened many times and the ETC light lights up for a second. After that I start the engine without any issues. I replaced the thhrottle body with a new one but the problem is still ...The most common reason your vehicle shuts off when driving is a lack of fuel. The most likely cause is an empty fuel tank aided by a fuel gauge that's not as accurate as it looks. Even if it indicates there is fuel in there, bang on the tank. If it makes a hollow sound, it's probably empty. Turn the key from off to on.SUV. Jeep Compass or similar. 5 people. Nairobi, Nairobi County, KEN. Don't see what you're looking for? See all car rentals in Nairobi West. View all cars.Off Pavement- Unfortunately, none of the mounting holes for the PCM are used as a ground in my '05, and all grounds have been checked. dmblair- The fuel pump relay has been checked and is good. If I am driving and the jeep shuts off, it is just the engine. When I go to start it back up, electronics work fine, but the engine won't start.According to one driver, their 2018 Jeep Compass SUV began to stall while driving, even though the car had just been purchased. The engine runs so hot that the vehicle will simply stop driving, and the engine burns through transmission fluid, coolant, and oil at an alarming rate. Another driver described how the engine tends to randomly shut ...Need a help with a solution. - sherylfl , Ponte Vedra Bch, FL, US. Maximize. The 2008 Jeep Compass has 8 problems reported for engine stalls/shuts down while driving. Average repair cost is $550 ...2014 Jeep compass shuts off by itself while driving 6 Answers. Engine and inside lights shut off while driving or at a red light and comes back on within one second , sometimes it turns off completely and I have to restart it. recently , I had to jumpstart ...This 2018 Jeep Compass is a temperamental, oil guzzling, auto-off/engine-failing piece of crap. ... It shuts off while in traffic and at stop lights at busy intersections and won't restart — all the same symptoms as you read above. The only one we haven't experienced is it shutting off while driving on a highway. So we are lucky there.

I was driving to work last week and the engine suddenly stopped on my 2005 Jeep Wrangler TJ while I was driving. I started the car, went only a 1/4 mile down the road and it stopped. I managed to steer over to the side of the road and restarted the engine. It started right away and then about a mile down the road it sounded hesitant once more ...

Engine shuts off while driving. My 2012 Jeep Grand Cherokee in July of 2014, apx 60,000 miles, engine started to shut off while the vehicle is in drive and driving. Typically this would happen while breaking or making left hand turns. The only way I knew that the engine was off is that the breaks do not work.2008 JEEP GRAND CHEROKEE; 124,960 MILES; I have a 08 grand cherokee with a diesel engine while driving it will just shut off no fault codes and can be restarted immediately it may work fine for awhile then go through a series of this shuting off. Wednesday, August 29th, 2012 AT 9:13 PM ...Worst 2020 Jeep Compass Problems #1: Engine Shuts Off While Driving 2020 Compass Average Cost to Fix: N/A Average Mileage: 13,000 mi. Learn More #2: Water Gets Into Cabin When It Rains 2020 ...The vehicle stalls while driving. Completely shuts down and locks up the steering wheel and causes dangerous circumstances. Also, turns off at times while stopped. Can …3129 posts · Joined 2018. #6 · Jan 28, 2022. E-brake shouldn't engage at any speed unless a door is open. Then it will. If you're just driving along and it activates, my first guess is a bad switch. I don't know what Jeep was thinking when they put an electric switch on the e-brake. Kinda means we've lost the "emergency" concept.Jun 28, 2020 · 2016 Patriot Latitude Engine Shutdown While Driving. We have a 2016 Jeep Patriot Latitude (4WD). Over the past few days, the engine would shut down and try to restart with the vehicle moving. I stopped at a Valvoline Oil Change location, as I was almost due for an oil change. I had the service done, then I asked the tech to check for codes. My 2019 Jeep Cherokee started doing this. It happened 3 times and the last time I was able to record it. Took it to the dealership and they said it was due t...1 post · Joined 2020. #1 · Nov 5, 2020. Hi there, I have a Jeep Compass 2018 with 23580 km. The vehicle completely shut down on me while driving, all the dashboard lights came on and began blinking and making loud beeping sounds. The emergency parking brake lights came on to be serviced, along with check engine light as well.1989 yj Shut off while driving. Short Suspected. I have a 1989 wrangler and I was driving it when I hit the left turn signal and the car died. Now there is no power at the key or at the indicator lights. I located the ignition switch at the bottom of the steering column and performed some electrical tests.

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The 1997 Jeep Grand Cherokee has 17 problems reported for engine stalls/shuts off while driving. Average repair cost is $170 at 160,550 miles.Lemon Law. CarComplaints.com Notes: The 2014 (and 2015) Jeep Grand Cherokee have a serious defect trend of transmission complaints. Most of the complaints are for rough shifting — things ...When this happens if I fully power off (that is, remove the key and open the door) the warning lights go off and it starts up just like normal. Details: 2008 Patriot Limited. 2.4L engine. CVT Transmission. 254,000km. Other Notes: The first time the jeep went into limp mode I had 4 codes, P0700, U0100, and B2AAA twice, but haven't gotten any ...If all your accessories are in good condition, but the stop safely vehicle will shut off soon jeep compass, the message continues to appear. It may be that your wiring is faulty. Faulty wires lead to intermittent circuits and power flow. It may be that the wires are burnt, loose, it damaged.11 Reasons Why Jeep Wrangler Shuts Off While Driving. 1. Faulty Crank Position Sensor. If the Jeep Wrangler dies but restarts after a few minutes, the problem is with the crank sensor. As its name implies, It's a sensor that monitors the crankshaft's position. The ECU then uses this information to perform a few critical functions in the engine.Mar 4, 2019 · 2014 Jeep compass shuts off by itself while driving 6 Answers. Engine and inside lights shut off while driving or at a red light and comes back on within one second , sometimes it turns off completely and I have to restart it. recently , I had to jumpstart ... The 2024 Jeep® Compass features advanced 4x4 systems and Trail-Rated® performance. Schedule a test drive today and experience the Jeep Compass for yourself! ... High air intakes and special water sealing help Compass overcome off-road water obstacles with ease. ... while their turn signal indicators help communicate with other drivers.Eduardo Zepeda. May 11, 2022. The 2016 Jeep Compass is a popular compact crossover SUV that has a fair share of reliability concerns. Common problems include engines stalling, transmissions overheating, and malfunctioning electrical components. Key Points.2016 Jeep Compass 2.4L stalling while driving, traction control light comes on. At completely random times, my jeep will just stall completely and shut off while driving. Whether it be at speed, parked, making a turn from a stop etc. Every time the engine dies, the traction control light on the dash comes on. I did a lot of reading around, and ... ….

42,879 miles. Going down road and vehicle turns off. Wait afew minutes and vehicle will start and drive again. - Lance B. , Sweetvalley, PA, US. Maximize. The 2008 Jeep Wrangler has 5 problems ...Nov 24, 2021 · When this happens if I fully power off (that is, remove the key and open the door) the warning lights go off and it starts up just like normal. Details: 2008 Patriot Limited. 2.4L engine. CVT Transmission. 254,000km. Other Notes: The first time the jeep went into limp mode I had 4 codes, P0700, U0100, and B2AAA twice, but haven't gotten any ... I was driving it on the highway last Monday and went to accelerate to pass (between 55-60mph) from the middle late to the left land and it completely lost power. Nothing shut off, but when I hit the gas pedal nothing happened. It went down to 45mph and picked back up, but would not go over 50mph."Some people are ready to get back out there and get out of the house and have some type of travel, and doing so in an RV makes the most sense." If you live in the US, you might be...96 xj shuts off while driving. Jump to Latest Follow. 2K views 2 replies 2 participants last post by mapest08 Sep 9, 2009. M. mapest08 Discussion starter. 46 posts · Joined 2008. #1 · Sep 9, 2009. ok so i want to rule out as much as possible for you guys cause im confused, the fuel pump runs and i replaced the pump last year when it wouldnt ...2 posts · Joined 2017. #1 · Jul 25, 2017. Hi all! New to this forum and obviously a brand new Jeep Compass owner. Just wondering if anyone has any constructive criticism about this engine auto off/on. Whenever I come to a full stop even for a brief second the engine shuts down and restarts when I take my foot off the brake and accelerate.When the battery is dead, our engines absolutely will not run for long after the jump start battery is removed. If the battery goes dead while you're driving, the engine will die. The days of alternators being able to provide power with a dead battery are long over for Jeep and for most car brands as well.2018 Compass Has a Mixed Safety Record, Scoring Average with the NHTSA, but Landing a Top Safety Pick with the IIHS. The Insurance Institue for Highway Safety gives the 2018 Compass high marks, labeling it a Top Safety Pick thanks to “Good” ratings in most of its tests.. However, many 2018 Jeep Compass owners who are … Jeep compass shuts off while driving, Safety Recall N17 / NHTSA 13V-120. Fuel Tank Transfer Tube. MODELS. 2012 (MK) Jeep Compass and Patriot. NOTE: This recall applies only to the above vehicles equipped with a 2.4L engine (sales code ED3) and 4x4 (sales code 5I4) built from October 18, 2011 through May 07, 2012 (MDH 101821 through 050700). SUBJECT., Lemon Law. CarComplaints.com Notes: The 2014 (and 2015) Jeep Grand Cherokee have a serious defect trend of transmission complaints. Most of the complaints are for rough shifting — things ..., Jun 5, 2022 · 6 posts · Joined 2022. #1 · Jun 5, 2022. Hi, I own a Grand Cherokee Trailhawk 2017 with 38000 miles, carefully maintained etc. etc., anyway while driving I loose power on the accelerator, the dashboard tells me to "shift to park" after I do that, the engine starts again and we are back to normal until who knows when this issue will show up again. , Your Compass’s engine needs three things to run properly; air, fuel, and spark. If your motor runs fine and suddenly dies, one of these three things is abruptly taken away. In this case, it’s usually fuel. The most common reason your vehicle shuts off when driving is a lack of fuel. The most likely cause is an empty fuel … See more, Just bought my second Jeep, 99 Grand Cherokee laredo 4.ol 4x4, and I've started to have a problem with the key light on the dashboard. The light will come on when driving, has not shut off yet while driving (hoping that won't happen) but there has been once when it would not turn on, everything came on but the engine died and that light was flashing., CJ7-Tim. 30808 posts · Joined 2002. #2 · Aug 1, 2011. The ASD relay is used to connect the O2 sensors, the ignition coil, and the fuel injectors to 12 volts. The wires to one of these may have a short circuit, or the relay itself is possibly faulty. "We the people are the rightful masters of both Congress and the Courts,, We have a 2007 jeep compass that has decided to just shut off while driving. Have power to everything (AC, radio, etc) but engine shuts off. If we take the key out of the ignition and try to restart the car it starts without a problem but will stall out again., Check the battery cables, make sure they're clean and tight. Also check the battery cable connection to the fuse box / TIPM. Sometimes problems with the engine bay grounds cause headlights to go out, but they tend more to go out and stay out rather than flicker on and off. The lights not shutting off could be a TIPM issue., Own a 2004 Jeep Wrangler unlimited with 61,000 miles. This past weekend while driving went to pull into a parking lot. The jeep just shut off like someone flipped a light switch. Turned the key and it started right back up. On way home while driving down the interstate same thing. Drifted off to the berm and eventually got it to turn over., Jun 19, 2018 · When the oil gets low the valves can't actuate and the vehicle shuts down. It was corrected by a recall/update. You should check with a Jeep dealer to see if your Compass had the recall performed. Unfortunately the update does not fix the oil consumption problem but does reduce consumption at idle IIRC. , 1 post · Joined 2014. #2 · Mar 19, 2014. 07 cherokee shuts off while driving. I have the exact same issues on my 2007 4.7 liters V8. I frequently put the gear to Neutral and reignite with the key to minimize the accident risk - no need to put Park. It frequently does it while turning, at less than 25 mph. I've had the Jeep for 4 years now, it ..., Mickeyabq answered 3 years ago. 2014 Jeep compass just started doing this. It's at 60000 miles. Was driving in the freeway and it just shut off, wouldn't restart, an hour later the tow truck arrived and it started. It was a bit scary as the power steering and brakes went out while going 75., The engine shutting off while driving is the most widespread complaint from 2020 Compass owners in the first 10,000 miles. Usually the engine shutting off is caused by a computer issue. ... Standard safety technology is much more advanced in the Subaru Outback, while the Jeep Compass has more responsive steering. We recommend the Subaru Outback ..., The Cherokee is actually a computer on 4 wheels. 2. Get in the habit of checking your oil every gas up. 3. Know where your washer fluid fill is, oil fill is, coolant fill is, and checking your tire air pressure. When you go for an oil change most lube shops and the dealer will check those item for you., Nicholas 71b740 on July 11, 2022. 2016 Jeep Grand Cherokee, driving 45mph, felt a slight jerk, then engine light pops on, 2 minutes later, alert pops up on dash saying shift vehicle into Park, and something about Trans. Car automatically shifted to neutral, rolled to side of road. Shifted to park, car stayed on, wouldn’t let me shift to drive., The same thing happened to me twice now, 2018 Compass Limited, 33k miles. At red light, Auto Start Stop shuts off engine, traffic light turns green, engine restarts, transmission clunks, Service 4wd lights up, and i have barely enough power to get through the intersection maxed at about 15mph in rushhour traffic., Maximize. The 2013 Jeep Wrangler has 36 problems reported for engine stalls/dies while driving. Average repair cost is $90 at 59,650 miles. (Page 1 of 2), The 2012 Jeep Compass has 2 problems reported for engine stalls/dies while driving. Average repair cost is $400 at 85,150 miles. CarComplaints.com : Car complaints, car problems and defect information, The Jeep was dropped off at JEEP Chelmsford ESSEX for the recent global WK1 - WH1 recall, for the transfer case gearbox issue, so I asked the service staff for the additional cost to reflash my Front Control Box to sort out the flickering lights problem. Result of my request was no communication. They went ahead regardless. Typical main …, The 2018 Jeep Compass has 12 problems reported for shuts down while driving. Average failure mileage is 14,050 miles. CarComplaints.com : Car complaints, car …, Makes more worry for them and our family to know they could be seriously injured in a crash because the vehicle shuts off while driving!! - greaser , Mt. Storm, WV, US. Maximize. The 2007 Jeep ..., Symptoms of a Jeep shutting off while driving. When a Jeep shuts off while driving, it can be a scary and dangerous situation. One of the most common symptoms is that the engine suddenly stops running, leaving the driver without power to accelerate or steer. This can happen at any speed and may cause the vehicle to come to an abrupt stop., The Jeep was dropped off at JEEP Chelmsford ESSEX for the recent global WK1 - WH1 recall, for the transfer case gearbox issue, so I asked the service staff for the additional cost to reflash my Front Control Box to sort out the flickering lights problem. Result of my request was no communication. They went ahead regardless. Typical main …, RPM surge. A bad fuel injector can do the opposite of not providing enough fuel for the engine. It can spray too much fuel, which can cause a surge in the RPM of your Jeep. In some situations, your engine will lose RPM then it will suddenly regain what it lost. This is best checked by an OBD2 scanner too., It always sits at empty with the dash light on. I figured it wasn't an emergency and that it was just the sensor in my tank, so I let it be. Now all of a sudden, a few days ago, my jeep's engine just shut off while driving on the hwy (about 50mph). It didn't choke, or feel like a typical stall... just smoothly stopped running., The Jeep shuts off while driving and won't start due to a bad fuel pump, damaged position sensor, bad wiring, faulty MAF sensor, or ECT sensor. You can fix them by checking the fuel pressure and fuel tank and fixing the issue of the tachometer, alternator, ignition coil, and sensor data. I'll first take you through the common reasons for ..., 1. Bad Airflow To The Engine. One of the most common reasons you’re experiencing numerous engine stalls when driving your Jeep is because of a lack of airflow. The engine needs a sufficient amount of air to run correctly. The aim comes into the engine via an air intake, which also cleans the air before reaching the engine’s central part., Jeeps have a big customer base and a loyal following for repeat business. What is the best Jeep? That depends on your needs. The 4×4 Jeeps have off-road performance if you need a f..., Asked by blondie48 Mar 31, 2015 at 08:46 AM about the 2002 Jeep Grand Cherokee Laredo 4WD. Question type: Maintenance & Repair. This morning my jeep shut off on me while driving it. The jeep has been idiling rough and. the engine light comes on then goes off after a few days. When i put it in park and tried to. restart it it would not start., Dirty or clogged fuel injectors. Worn-out spark plugs. Bad O2 Sensor. Fuel pump malfunction. To diagnose the issue, you should get your car scanned with an OBD2 scanner, which will help you identify the specific problem causing the check engine light to come on., Jeep Flashing Dash Cluster -- FIXED!! I have been the victim of the random flashing dash lights issue. It happened in my 2012 and my 2013. The Jeep will also not start randomly. I also know the web is full of people with the same issue (even in other Jeep vehicles). The dealership knows nothing, and was blaming my CB and LED headlights., 2018 Compass Has a Mixed Safety Record, Scoring Average with the NHTSA, but Landing a Top Safety Pick with the IIHS. The Insurance Institue for Highway Safety gives the 2018 Compass high marks, labeling it a Top Safety Pick thanks to “Good” ratings in most of its tests.. However, many 2018 Jeep Compass owners who are …, Jonny Jeep. 7235 posts · Joined 2007. #17 · Feb 6, 2021. The ASD or Auto Shutdown circuit supplies 12V to the injectors, PCM, coil/coil packs (and ignition capacitor). In early TJs it also supplies power the O2 sensor Heaters. The ASD relay is controlled by the PCM in the same way as the fuel pump relay.