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Also referred to as energy-saving light, the check engine light with a down arrow means that your cars performance can be reduced significantly. There are two knobs in the instrument cluster, press RIGHT one repeatedly until you see the Engine Oil Filter. That very well may be the issue with the light. Otherwise, call a mechanic for help. Watch this video to find out how you can diagnose the problem, and why the code comes up.For other common check engine code videos check out our playlist here:http://www.youtube.com/playlist?list=PL37d7oWG6wDC2dpOi1UfEtcxqgokEhbydFor More Info visit us at http://1aau.to/h/ceT/ DISCLAIMER:While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. READ MORE: Infiniti Dashboard Warning Lights Every Driver Should Know. This Isuzu truck warning light is an old-school pump and a hose and two rows of dots sandwiched by two vertical bars below it. 2015 isuzu npr diesel the check engine light with the 2015 isuzu npr diesel the check engine light with the exhaust light and the speed drop to 5 MPH I SCAN IT I GOT THESE CODE U2105 AND U2203 I NEED DIAGNOSTIC PROCEDURE FOR THESE TWO CODE THANKS Answered in 1 minute by: 7/3/2019 Mike Mcmillan bbd4319.pdf 91dd38b.pdf Brake booster warning light illuminates as BRAKE BOOSTER on the Isuzu D-Max dashboard. If you spot a flashing check engine light, you should pull over immediately. Hello, I Bought A Used 2005 Chevy Equinox And I Love It Except For Two Problems. This problem does not occur in all vehicles but in cars with ECT systems though not all. A while ago the EXH. (Diagnosis & Fixes), 6 Reasons Why The Check Engine Light May Come On. That may not be within your reach. I haven't seen one have an exhaust light come on and off like that though. Is It Safe To Drive With The Check Engine Light On? They are common on newer trucks, and they are designed to remove diesel particulate matter otherwise known as soot from the exhaust gas in a diesel engine. Automatic Transmission Fluid (ATF) Temperature Warning Light. 0000000716 00000 n Self pride and don't want to use faulty equipment? Its throwing a p0087 everytime you try to accelerate, and cuts engine power. It is easy to test: tee in a vacuum gauge to the fuel hose (outlet). Our "mechanic" at work continues to tell the market manager that its just a stored error code that he cant delete, which is why I'm still driving it. This light is usually red, but may also be yellow. The check engine light with a down arrow means that your cars throttle actuator control (TAC) system or electronic throttle control (ETC) system may have a problem. 0000041311 00000 n Problem Fixed. The control unit is responsible for regulating electric energy. If the light comes on and the car starts experiencing problems right away, then its best to play it safe and pull over. There are quite a few sensors which control the engine and transmission. 0000000891 00000 n So take a deep breath, pop the hood, and start poking around. The brake system warning light in Isuzu D-Max is a word symbol illuminating as BRAKE. They are designed to remove diesel particular matter (soot) from the exhaust gas in a diesel engine. Use an OBD II scan tool for reading the trouble code. Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/229/C/throttle-body-assemblyIf you have noticed that your engine is weak, your vehicle won't accelerate well, it stalls out, or it has entered limp mode (the engine cuts off at low RPM), and a check engine code P2135, you have a problem with your throttle body position sensors. Download the trouble codes and see if you can find some information that can point you to a specific component (s) or system. It functions when you activate them by toggling a switch on the dashboard. Your Isuzu truck is suitable for both on- and off-road uses. Isuzu D-Max Maintenance Service Light Reset Guide Turn on the car without starting the engine. Since the engine light can come on for numerous reasons, the ECM also logs a. 95,000 miles, $95 - Its still doing it. 0000038662 00000 n 0000019277 00000 n Do not drive your truck in that case because of a possible brake failure. 2003 Isuzu Npr 4 Cyl Two Wheel Drive Manual 98000k Miles The mass airflow sensor is also sensitive to dirt, water, and oil. The check engine light appears in every vehicle if there is a problem with the engine sensors, catalytic converter, or loose fuel cap. One, Periodically When I Start The Car - It Will Start Why is my check engine or service engine soon turned on? 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video. Please help me figure this out. 200+ Car Warning Lights: Full List + PDF Download, Toyota Dashboard Symbols And Meanings: Full List + PDF Download. This usually happens when the TAC or ETC system senses a throttle position sensor (TPS) or throttle pedal position sensor (TPPS) malfunction. The throttle actuator control is a cause behind the check engine light. Driving with the ATF warning light on is a bad idea. So since I cant get them to bring it in yet, if its something that I can fix myself I will go that route. Likely causes for your car entering limp mode range from faulty engine sensors and wiring to low fluid levels, such as engine coolant and oil. However, these sensors have to tolerate extremely high temperatures and are prone to fail when your vehicle crosses 80,000 miles. Finally, reset the throttle body and see if the check engine light comes back on. You can call a mechanic to assess the situation or carefully drive to the nearest auto repair shop for a detailed diagnosis. Cab, 8' bed, 99 & up 7.3L Power Stroke Engine & Drivetrain, 99 & up Upgrades and Aftermarket - 7.3L Engine, 7.3L IDI Diesels (Not Powerstrokes) 1988-1993. I Have Also Noticed A Problem With Acceleration When The My Check Engine Light Came On And Refuses To Go Off, What Do It Do? Pull off the road and shut down the engine to let it cool. 0000023362 00000 n Code Read Retrieval/Clear - Dodge Stratus, Topdon OBD2 Scanner Review - This thing rocks, https://www.2carpros.com/articles/automatic-transmission-problems, https://www.2carpros.com/articles/how-to-service-an-automatic-transmission. The next time you see the engine light with an arrow come on in your car, dont panic. However, that doesnt necessarily mean that you need to pull over and call a tow truck right away. The mass airflow sensor in your vehicle measures how much air enters the engine. Unlike the normal engine light, this light is pretty expensive to repair and needs a professional to correct. This may reset the system and thus resolve the issue. The Past Few Weeks My Check Engine Light Has Been Coming On And Then Going Off. If this does not work, see your dealer or authorized service center as soon as possible. It comes on momentarily when you turn on the engine. The check engine light would also come on and blink for like 5 or 6 times then go off. This will result in a flashing check engine light, and your ECM will register a trouble code. JavaScript is disabled. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. How do I reset my reduced engine power light? When the light appears on the dashboard, you should stop and figure out the problem or take the car for service as soon as possible. The tech before me replaced the fuel pressure regulator and another sensor on the pump. If the engine light is steady and theres no performance loss, the problem isnt too urgent. You will see this symbol on the dashboard when you manually set and activate it by pressing a cruise control symbol. A red or orange light may come on in some vehicles instead of a yellow flashing light. It's staying on Mechanic's Assistant: What is the make/model/year of your car? thanks. In some cases, it can also cause the engine to stall. I had transmission fluid checked last year about this time from the dealership. I recently have had the gas pedal sensor and the body throttle changed on it. I have an Isuzu NPR 2006, and I want to turn off my check engine light, but have no idea how. You will then need a shop with the Isuzu program to do it. These Isuzu truck warning lights operate in two modes. Check the message center for any information regarding the actual cause. 0000001549 00000 n This problem requires urgent attention where you can take the vehicle for service or change the ETC itself. How Much Does An LS1 Engine Cost | All You Need To Know, How Much Does A Custom Tune Cost | Detailed Breakdown, How Much Does Engine Balancing Cost | Breakdown of Expense, Kia Soul Engine Replacement Cost: An In-Depth Look. Give the car a few minutes to cool down and restart it if it is tight. once you begin to drive and push the pedal half way down it sets the code and looses power. If it does, then you know that the throttle actuator control is the cause of the problem. Let us diagnose. Infiniti Dashboard Warning Lights Every Driver Should Know, Massey Ferguson: Tractor Warning Light Meanings. So, take your vehicle to an authorized dealer as soon as you can to diagnose and fix the problem. Have you ever seen that little engine light with down arrow on it come on in your car? VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 2. If none of these is true, there is a problem with the braking system. 4. . However, if the throttle is not tight, tighten it and ensure you hear a loud click, then start the car. If the light is yellow, it indicates that the problem is less severe and the vehicle can be driven but should be taken to a mechanic as soon as possible for diagnosis and repair. Reduced engine power, also known as the limp mode in some models, means your car wont accelerate even when you step on the gas pedal to the floor. That may result from a faulty alternator, damaged car battery, corroded battery terminal, or circuit problems. Getting a multi point inspection that includes brake service, alignment service, or oil change service can help prevent future problems. The Isuzu Rodeo is an automotive nameplate that was used by the Japanese automobile manufacturer Isuzu between 1988 and 2004. This is when the truck cuts power and strts to go into limp mode. R. The image of a black arrow pointing downwards is the emoji for disapproval or the southern direction. If they are okay, you may need to contact your mechanic for further diagnosis and problem-solving. 1.Turn the key off. It automatically shuts down the engine when it stays idle for some time. New comments cannot be posted and votes cannot be cast, Press J to jump to the feed. If the sensor goes bad or there are any leaks in the air intake tract, the check engine light will come on. trailer It can cause more damage to your transmission system. 0000001707 00000 n While the check engine light appears due to the problems mentioned above, the check engine light with a down arrow turns on because of a problem with the ECT system, which requires an urgent check-up by a professional. It is a word symbol illuminating as CHECK 4WD. There are two primary reasons the check engine light with a down arrow might appear on display. Does the check engine light differ from the check engine light with a down arrow. The first one is a three-letter acronym, DRL, whereas the other consists of small dots or lines radiating from an oval-shaped figure. For a better experience, please enable JavaScript in your browser before proceeding. The left-pointing arrow lights green when you toggle the switch for a left turn, while the right-pointing one lights green when you again toggle the switch for a right turn. If you plan to do it yourself, here are some methods: Just remember that the light will come back on if the underlying issue isnt eliminated. If there is a problem involving the ETC system in your car, the check engine light with a down arrow will surely turn on. Since the 1980s, computers increasingly have controlled and monitored vehicle performance, regulating such. Here, well explain what does engine light with arrow mean and what you should do if it comes on. How Urgent Is A Check Engine Light Diagnosis? 1" Hg. The Od2 Why is my check engine or service engine soon turned on? Also known as limp home mode, limp mode is a security feature in cars which activates when the engine or transmission control unit picks up a fault. If theres no change in your vehicles performance, but the engine light is on, you can continue to drive until you bring your vehicle to a safe location. Whenever the ECM runs into an issue that it cant resolve, it triggers the Check Engine Light (CEL). An exhaust brake indicator is an amber light that illuminates a circle with a smoke trail inside brackets. The symbol is an amber circle enclosed in braces with ABS or just the acronym. Our certified mobile mechanics come to your home or office to complete your repair. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. The first mode is the Full-Strength indicated by an amber exhaust brake dashboards indicator. The Isuzu D-Max pick-up truck has been manufactured since 2002 and is now of its second generation. I recently wrestled with similar problem on Isuzu NPR, 5.2L, trouble code P0087. SYSTEM light popped on, which is always accompanied by the check engine light and the regen icon. There are two knobs in the instrument cluster, press RIGHT one repeatedly until you see the Engine Oil Filter. In either case, it indicates an urgent issue that you should address ASAP. What Is Car Battery Voltage And Why Is It Important? I'm not a diesel guy at all, but I researched the light and all I can find is just: 'an issue with the SCR system, bring it to a dealer'. The first generation (Mk 1) was manufactured up until 2012, with the second generation (Mk 2) still in current production. 0000006333 00000 n The picture symbol, in essence, is an engine seen from the side, is the same as the check engine light with a down pointing arrow to indicate that the power is reduced. One of the guys said that the aftermarket filters out there (I used a WIX from NAPA) "flow too well" and that they always use stock Isuzu. Take the car to a decent mechanic so they can diagnose exactly what is wrong, it could be anything from a leaking hose to a failed sensor. Select ENGINE OIL or MAINTENANCE. They ended up replacing injector #1, the SCV and the fuel filter (I think that was it). Therefore, you should understand the signals cars portray when there is a problem with their engine so you know when and how to respond. Hopefully the picture shows up now. The light may be either red or yellow, depending on the severity of the problem. If the timing of the spark is off or if the fuel mixture and its compression isnt right, your vehicle can misfire. Drive your vehicle until the engine light goes off, Get an OBD-II scan tool to reset the code, Top 5 Most Romantic Cars in Movie History, What Causes a Hard Brake Pedal? You require a specialized diagnostic tool to find the code that points at the possible cause. Just be sure to keep an eye on the temperature gauge and dont push the car too hard. Check engine light with down arrow comes on while driving and shifts out of gear (I'm guessing). If the throttle doesnt seem tight enough, tighten it and make sure that you get a loud click sound. I installed a new filter base (comes with new filter) and no more code or power loss. Diesel particulate filter materials have been developed that show impressive filtration efficiencies, in excess of 90%, as well as good mechanical and thermal durability. Detailed Breakdown! Rotate the RIGHT knob to set the interval. 4 0 obj <> endobj You should keep your eye on the instrument panel and message center for any symbols to perform proper follow-ups. 5.7L V8 Base How Much Does A Check Engine Light Diagnosis Cost. An overdrive off warning light is a letter D inside a square shape with a diagonal line crossing from the top-left corner to the bottom-right corner. Hello! We perform over 600 repair and maintenance services including oil changes, ISUZU TRUCK 8 10 xlOOOr/min ULTRA LOW SULFUR DIESEL FUEL ONLY BRAKE 22 20 17 13 40 20 040 020 50 so do 70 . If you press the hazard button, both turn signals flash. Hold down the INFO button. The Isuzu D-Max model is a generic fault indicator that we cannot associate with any fault. Learn more. However, if there are strange sounds from the engine, poor acceleration, or rough idling combined with a lit check engine light, dont try to accelerate or shift gears. Doing any repair on the ETC system requires a lot of precision, and that is why you should look for a professional to do it. When the. How Do I Reset The Check Engine Light? The engine warning light can mean a lot of different things. It didnt fix it. Once the check engine light comes on, the parked regen was just upgraded to a manual one. Vacuum should only be approx. In Isuzu vehicles, the symbol is IDLE STOP. Press and hold the RIGHT knob. Some examples include Buick Rainier, Saturn sl2, Buick Rendezvous, Buick Lucerne, and Buick LeSabre, to mention a few. Failed fuel injectors, coil packs and worn out spark plugs can also cause it. Sometimes, an issue as simple as a loose gas cap can cause the diagnostic system to turn on the engine light. Your email address will not be published. Any help would be great. The power reduction can continue till you drive the car again. If it stays on, it means the water separator requires draining. Maybe this is the source of the low fuel rail pressure that many see (though I would think that this would only affect the tank pump, not the injector pump and thus fuel rail pressure \_()_/). Engine light & fault reset tools here http://www.diagnostic-world.com/ One or more sensors may be sending faulty signals. It is a safety feature to prevent further engine damage. How Much Does A V8 Engine Cost? I Recently Purchased A 2010 Equinox With 35000 Miles On It. Main Specifications Displacement 5.2L (317.3 cu in) Fuel DIESEL Dry Weight 470kg (1036.2lbs) Coolant Capacity (Block) 14.0L (14.8 qt.) If all the suggested problems are not found, then ETC remains the lights possible cause. I have a tech 2 with isuzu software, it looks like the FPR is working fine, and since its been replaced im assuming its good. After reading about more than one person who just about replaced their entire fuel system with no luck I decided to take it to a GMC truck shop. Adding pic of codes pulled at AutoZone. The battery discharge warning light is a red symbol of the typical car battery you find in all vehicles. I have an '06 5.2L W4500 that had this same problem. The leading cause lies in the ECT system, which is not present in every vehicle. If youre seeing an engine light with an arrow pointing downwards on your cars dash, it might indicate a problem with the ETC system. If the sensor detects that the engine is running too cold, it will illuminate the check engine light with a down arrow to indicate that the fuel mixture should be richened up. If there is an issue with the throttle actuator control, it can cause the check engine light to come on. When that happens, you should call your service center and schedule a battery service. It stays on for about 30 seconds and turns off once the system check is complete. If youre experiencing any of these problems, its important to take your car to a mechanic as soon as possible to have it checked out. The SCR systems are a pain in the ass. Like many others this occured soon after replacing the fuel filter. Posted on Dec 11, 2013. It momentarily comes on when you turn the ignition. The check engine light is part of your car's so-called onboard diagnostics system. Nonetheless, drive with caution and get the issue fixed ASAP to prevent further damage to your cars engine. Whatever the cause, pull off the road immediately and shut down the engine to let it cool. It sounds like the engine is over heating causing the check engine light to come on. Learn Now! That is usually the case when there is heavy traffic or when you stop at the stop sign. This Isuzu truck warning light is an amber engine block with a downward-facing arrow. Once it detects a problem, limp mode will cause the less important parts of the car, such as air conditioning, to switch off, and the speed of the car will be reduced. When your car battery is weak or isnt fully charged, itll fail to send enough power to your vehicles ECM. Theyre also called DPF (diesel particulate filter) systems. Quick Answer: How To Reset 2017 Sienna Maintenance Light, Quick Answer: How To Reset 2017 Tundra Maintenance Light, How To Reset Maintenance Light Camry 2017, How To Reset 2017 Camry Maintenance Light, Question: How To Reset 2017 Tacoma Maintenance Light, Question: How Do I Reset 2017 Lancer Maintenance Light, How To Reset 2017 Honda Crv Maintenance Light, Quick Answer: How To Reset 2017 Honda Pilot Maintenance Light, How To Reset 2017 Nissan Altima Maintenance Light, Quick Answer: How To Reset 2017 Volvo Xc60 Maintenance Light, How To Reset Engine Maintenance Light Corolla 2017. However, this cost doesnt include the taxes and other fees a service center may charge for the diagnostics tests. READ MORE: Massey Ferguson: Tractor Warning Light Meanings. also if anyone knows how this code is set, what the ecm looks at that would help my diag too. The truck needs the brake booster to increase the braking force you apply on the pedal to the master cylinder. Some situations require immediate attention, while others might take a while and still not affect the vehicle permanently. How Much Should Engine Flush Cost? Maybe they don't have the Isuzu software to clear the code? Learn Now! A forum community dedicated to all Ford Diesel owners and enthusiasts. It may not be currently displaying any codes, but if there were issues, you may need to perform a reset procedure to clear the lights and the derate. the truck starts and idles fine. A faulty oxygen sensor can even damage your spark plugs and catalytic converter, leading to costly repairs. 2016 nqr Isuzu Mechanic's Assistant: Are you fixing your vehicle yourself? )NsNO7,__~q}WVYZ?,. Read codes Turn the ignition ON, without starting the engine. Quick Answer: How To Reset 2017 Izusu Nqr Maintenance Light. A few minutes would go by and then the check engine light would come on again and flash. And now I'm a bit confused. Park the truck and turn off the engine when you see it. However, youll still require a certified technician to do a multi point inspection and find the root cause of the issue. But if it stays on or comes on when driving, there is clogging or fault with the fuel filter. 4 21 If it doesnt go off, visit an auto repair shop for fixing. Resolving the underlying issue will clear the diagnostic code and reset the engine light. If your vehicle goes in limp mode while driving, find a safe place to stop and restart the engine. So your "mechanic" might be right. However, if the problem is left unchecked, it could eventually lead to more serious engine damage. If you toggle the switch again, it will go to an Automatic or Smart Exhaust Brake shown by AUTO below the dashboard warning light. 0000341476 00000 n It sometimes comes on when driving. It comes on when the transmission fluid temperature is higher than recommended. If they are, confirm if the sensor is working and if yes, then check whether the throttle is tight. If you see this light, you should take your car to a mechanic to have it checked out. 0000014829 00000 n If it's safe and it runs ok and is not derated, might as well drive it. Your Isuzu truck communicates with you through the dashboard symbols. It did that all the way home (12 miles). Daytime running light stays on at all times as long as the engine is running. The problem may be something as simple as a gas cap issue, or it could be something more serious that requires repairs. The best part? How do you reset the service light on a 2014 Isuzu DMAX? However, this cost doesn't include the taxes and other fees a service center may charge for the diagnostics tests. You will have just enough engine power to take you to an auto repair shop or drive you back home. Mobile repair services can perform brake service, oil change service, transmission service, battery service, or tire rotation and alignment service right in your driveway. What does a check engine light with a down arrow mean? You can press or rotate the knob to cycle the menu. To do this, you will need to have IDSS software. Some other reasons that could also cause engine misfire and trigger the engine light are: If you keep ignoring the check engine light for such misfires, they can result in serious problems like a mechanical failure of your cars engine. The average cost for Isuzu NPR-HD Check Engine Light Diagnosis is $115. Aug 12, 2011. It comes on to warn you of different issues. There's seems to be too much raw fuel going through he exhaust. ETC stands for electronic throttle control, and its responsible for regulating the flow of air into the engine. Much like your cars check engine light, the reduced engine power warning cannot be reset with a simple push of a button or flip of a switch. Go to SELECT MODE. Do You Gentlemen. Electrical Problem One light is a engine light that says check in the middle of it and the other is just a engine light The DEF light is on as well but I have a full DEF tank Andy at ABC TOWING, Aug 4, 2016 #1 + Quote Reply Trucking Jobs in 30 seconds Every month 400 people find a job with the help of TruckersReport. Select END to exit settings. <<2999044F5CE4314986B0B6866338DE03>]/Prev 421894>> $131, 5.2L L4 Turbo Diesel Base If this happens, you should stop the vehicle and check if the cables are in good shape. Dont worry, youre not alone. Your'e done. The price can also vary depending on the vehicle model and the labor charges. There are a few things that you can do to check if the throttle actuator control is actually the cause of the check engine light. Next, check for any leaks in the throttle body. They enhance your visibility while on the road or notify other road users about your presence. The green color means the lights are active and working as expected, while amber indicates a fault, regardless of the type. . Code p2147 07gmc /Isuzu runs good then kicks code cycle key runs good 10-15mi then kicks code again did notice al injectors balance equal at this time grd issues? Topdon OBD2 Scanner Review - This thing rocks, https://www.2carpros.com/articles/engine-overheating-or-running-hot, https://www.2carpros.com/articles/symptoms-of-an-overheating-engine, https://www.2carpros.com/articles/radiator-pressure-test, https://www.2carpros.com/articles/car-is-leaking-coolant. READ MORE: Why Does My Car Engine Knock On Startup Then Goes Away? In other cases, it could be the ignition coil thats to be blamed. However, a flashing engine light indicates a more pressing concern that requires immediate attention. Product Features Positive Molded: Less dust resulting in clean wheels G3000 Casting Alloy: Reduced noise and improved wear resistance Application Specific Design: Extended service life, no. The picture symbol, in essence, is an engine seen from the side, is the same as the check engine light with a down pointing arrow to indicate that the power is reduced. so i drained the system and put a new filter on. Rotate the RIGHT knob to set the interval. 0000000951 00000 n A red or orange light may come on in some vehicles instead of a yellow flashing light. It saves fuel and minimizes carbon footprints. Stay tuned! %PDF-1.5 % Create an account to follow your favorite communities and start taking part in conversations. DEF warning light on Isuzu D-Max is an amber symbol consisting of a wavy line, smoke trail, and fluid drops. A got a 2011 isuzu with check engline light with a arrow in the middle of it When the pto is on the check engine light with a arrow pointed down cuts on and reduces the power. Engine doesnt go past 2 RPMs but still doesnt move unless put in L2. 24 0 obj <>stream Always remember to turn on the hazard light if your truck has a mechanical problem or a breakdown to alert other road users. Engine light on and another light with engine and arrow pointing down is on 2005 Isuzu Ascender Asked by paskel in Milwaukee, WI on August 23, 2010 The engine light is on. 0000000016 00000 n I Have One Npr Isuzu Truck With 4hl1 Engine My vehicle runs great for having 250,000 miles on it. What cars have the check engine light with a down arrow? It also acts as a button that usually lights red when you press it. The DPD system measures the pressure of the filter, and as it becomes more full, the pressure increases. Hello, I'm Drago, the cofounder, and writer here at carphrases.com. The word SET also appears below it. It prevents wheels from locking, giving you steering control under heavy load or slippery road conditions. I Have A 2008 Chevy Equinox Its Displaying Engine Hot Ac Off Then The Check Engine Light Came On Orange Help. Inspect the dashboard for a warning light indicating low oil pressure or overheating. But if it persists, it indicates a problem with the ABS.