Replace oxygen sensor(s) $242.873. Some of the possible malfunctions in your car can be detected either by various inappropriate sounds or by various physical signs. How to Get Rid of the "Check Engine" Light: 4 Techniques Check Engine Light is On: 2000 Saturn SL 1.9L 4 Cyl. - CarCareKiosk Helpful 0. Step 1: Park your car on flat ground and then engage the parking brake. Once you have successfully reset your check engine light, you are ready to go. How do I reset my check engine light without a scanner? Lets examine these options in-depth, based on what we have seen as professional mechanics. A check engine light can indicate a broad spectrum of problems with your 2006 Saturn Ion-3. Magnus is the owner and main author of Mechanicbase. Posted on Sep 12, 2009. But there's a way to preview what the problem might be. The service required light just means the car is due for an oil change or other routine care. What does the check engine light of your Saturn mean? Get a free Edmunds appraisal report for your car in minutes, Ready to sell? A check engine light can indicate a broad spectrum of problems with your 2008 Saturn Vue. Categories: The easiest way to reset the check engine light is by using an OBD2 scanner. Magnus is the owner and main author of Mechanicbase. For example, if a pump or sensor fails for a minute and corrects itself, the Check Engine Light may not stay on. Check your repair manual to find the fuse to the engine control unit. To properly diagnose the failure of your Saturn, it is important to have a suitable scanner that is compatible with the brand and model of your car. If the light doesnt reset or you dont want to wait, you can reset the codes yourself. Its a part of the engine-management system, so your car wouldnt be able to adjust to changes in altitude without it. A MAF for a late-model car typically costs between $120 and $150. Is It Safe To Drive With Check Engine Light On? The check engine light (also known as the malfunction indicator light) is a warning indicator on the dash that comes on when there is an issue with the vehicle's emissions control system or other systems monitored by the vehicle's onboard diagnostic system. Use an OBD code reader. Digital Trends Media Group may earn a commission when you buy through links on our sites. Next, read our article Automotive Circuit Testing 101, and if there is an article related to the system you are testing, such as Oxygen Sensors or EGR concerns, read these as well. It is not an indicator of trouble like the check engine light is. The EGR valve can get clogged or fail entirely. Certified Automotive Diagnostic Technician. One of the most widely reported 2006 Saturn Vue problems is its faulty engine valve cover gaskets, which tend to develop oil leaks. The problem was brought to the Saturn technician and deduced to either a gas tank sealing issue or oxygen sensor malfunction. But if he had, he would have wasted time and money because it turned out that the sensor was fine. It could be a temporary problem caused by a change in humidity or other factors. The chair is a variant of the manufacturer's Recaro Exo Platinum, adjusting some colors and adding a big, bold Porsche crest to the front headrest. The oxygen sensor was finally replaced on it 48,000 service checkup, yet the light was still active. The catalytic converter is integrated into a vehicles exhaust system. Find more information in our list of all car dashboard symbols. Sometimes the cap needs to be replaced, but its not a problem thats going to hit your wallet hard. If the check light is off, you are ready to go, but if it is still coming on, get ready by reading the codes with a scanner instead. Keep in mind that most newer cars do not use spark plug wires, however. The vast majority of cars use a single wire per cylinder, but there are models notably, some older Mercedes-Benzes with two spark plugs per cylinder and, consequently, two wires. He has reviewed cars on six continents (no one has let him drive in Antarctica yet), and he has driven over 450 past, present, and future models ranging from humble economy cars to ultra-rare hypercars with a seven-digit price tag -- yes, he has an Excel document to keep track of it all. The technician will use a scanner that connects to the vehicle's diagnostic port to determine the specific . Follow scan tool manufacturer's operating instructions to access the Diagnostic Trouble Codes (DTC's). Categories: Before you rejoice too quickly, keep in mind that something triggered that light in the first place. Members have burned out their catalytic converters in as little as 10 miles. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. Causes & How To Fix It, Check Engine Light After Oil Change - Causes & How to Fix, Engine Management Light: What It Means and How To Fix It, Check Engine Light - What It Means and How To Fix It, Malfunction Indicator Light (MIL): Meaning & What to do, Check Engine Light Flashing And Car Shaking: Causes & Fixes, Car Rattles When Accelerating Causes & Fixes, Car Leaking Oil? In some car models, you can also remove the battery terminals to reset the engine control unit. Whereas a steady check engine light may mean you merely need to tighten you gas cap next time you stop in order to reset the service engine soon . Then, when you least expect it, itll go off in the middle of the night because a leaf from an oak tree fell on the hood. Second, if theres a problem that leads to other wear, you could create more damage in the long run. Even so, it will take some time for the light to go off, he says. If you dont feel comfortable performing the fix, move on to step number four. Most Complete List For Saturn Check Engine Light Codes How far do you have to drive to reset the check engine light? John Wolf/123rf. If the problem is serious, your Saturn will be in a emergency state that will prevent you from accelerating the engine above certain speed limit, forcing you to drive at low speed in order to avoid further damages. Fix and Wait. If any problem is detected, the check engine Light of your dashboard will turn on. But Mazor adds it's important to address problems indicated by the light promptly. This method for resetting the chec. If you dont have a code scanner, many auto parts stores will also read the codes at no charge. The Check Engine light will light when the ECU stores a trouble code. Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1116 ECT Signal Unstable Or Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Saturn Check Engine Light Code, P1117 Engine Coolant Temp Signal Out-Of-Range Low, P1118 Engine Coolant Temp Signal Out-Of Range High, P1119 ECT Signal Out Of Rage With TFT Sensor, P1120 Throttle Position (TP) Sensor 1 Circuit, P1121 TP Sensor Circuit Intermittent High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Trouble Code, P1122 TP Sensor Circuit Intermittent Low Voltage - Read Our Article on Intermittent Diagnosis For Help With This Saturn Trouble Code, P1125 Accelerator Pedal Position (APP) System, P1130 HO2S Circuit Low Variance Bank 1 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1131 HO2S Circuit Low Variance Bank 1 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1132 H02S Circuit Low Variance Bank 2 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Trouble Code, P1133 HO2S Insufficient Switching - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Trouble Code, P1134 HO2S Transition Time Ratio - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1135 HO2S Lean Average Bank 1 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1136 HO2S Rich Average Bank 1 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Trouble Code, P1137 HO2S Bank 1 Sensor 2 Lean Or Low Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Trouble Code, P1138 HO2S Bank 1 Sensor 2 Rich Or High Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1139 HO2S Insufficient Switching Bank 1 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1140 HO2S Transition Time Ratio Bank 1 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1141 HO2S Bank 1 Sensor 2 Average Voltage Level - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1143 HO2S Bank 1 Sensor 3 Lean Or Low Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Trouble Code, P1144 HO2S Bank 1 Sensor 3 Rich Or High Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Trouble Code, P1145 HO2S Cross Counts Bank 1 Sensor 3 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1153 HO2S Insufficient Switching - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1154 HO2S Transition Time Ratio - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Trouble Code, P1155 HO2S Lean Average Bank 2 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Trouble Code, P1156 HO2S Rich Average Bank 2 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1157 HO2S Bank 2 Sensor 2 Lean System Or Low Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1158 HO2S Bank 2 Sensor 2 Rich Or High Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Trouble Code, P1159 HO2S Cross Counts Bank 2 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1161 HO2S Heater Power Stage Circuit Bank 2 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1163 HO2S Bank 2 Sensor 3 Lean System Or Low Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1164 HO2S Bank 2 Sensor 3 Rich Or High Voltage - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Check Engine Light Code, P1165 HO2S Cross Counts Bank 2 Sensor 2 - Read Our Article On Oxygen Sensor Codes For Help With This Saturn Trouble Code, P1171 Fuel System Lean During Acceleration, P1187 EOT Sensor Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Trouble Code, P1188 EOT Sensor Circuit High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1201 (Alternative Fuel) Gas Mass Sensor Circuit Range/Performance, P1202 (AlternativeFuel) Gas Mass Sensor Circuit Low Frequency, P1203 (Alternative Fuel) Gas Mass Sensor Circuit High Frequency, P1211 Mass Air Flow Circuit Intermittent High - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1212 Mass Air Flow Circuit Intermittent Low - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1216 Fuel Solenoid Response Time Too Short, P1217 Fuel Solenoid Response Time Too Long, P1219 Throttle Position Sensor Refernce Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1220 Throttle Position (TP) Sensor 2 Circuit, P1221 Throttle Position (TP) Sensor 1- 2 Correlation, P1222 Injector Control Circuit Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Saturn Check Engine Light Code, P1225 Injector Circuit Cylinder 2 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Saturn Check Engine Light Code, P1228 Injector Circuit Cylinder 3 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Saturn Check Engine Light Code, P1231 Injector Circuit Cylinder 4 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Saturn Check Engine Light Code, P1234 Injector Circuit Cylinder 5 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Saturn Check Engine Light Code, P1237 Injector Circuit Cylinder 6 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Saturn Check Engine Light Code, P1240 Injector Circuit Cyllinder 7 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Saturn Check Engine Light Code, P1243 Injector Circuit Cylinder 8 Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Saturn Check Engine Light Code, P1250 Early Fuel Evaporation Heater Circuit, P1258 Engine Coolant Overtemperature - Protection Mode Active, P1260 Last Test Failed SCC Or Theft Detected, Vehicle Immobilized, P1270 Accelerator Pedal Position Sensor A/D Converter Error, P1272 Accelerator Pedal Position Sensor 2, P1273 Accelerator Pedal Position Sensor 1, P1275 Accelerator Pedal Position (APP) Sensor 1 Circuit - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1276 Accelerator Pedal Position (APP) Sensor 1 Performance, P1277 Accelerator Pedal Position Sensor 1 Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1278 Accelerator Pedal Position Sensor 1 Circuit High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1280 Accelerator Pedal Position (APP) Sensor 2 Circuit - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1281 Accelerator Pedal Position (APP) Sensor 2 Performance, P1282 Accelerator Pedal Position Sensor 2 Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1283 Accelerator Pedal Position Sensor 2 Circuit High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1285 Accelerator Pedal Position (APP) Sensor 3 Circuit - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1286 Accelerator Pedal Position (APP) Sensor 3 Performance, P1287 Accelerator Pedal Position Sensor 3 Circuit Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1288 Accelerator Pedal Position Sensor 3 Circuit High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light CodeBR> One way to get your check engine light to turn off is to pull off the engine control units fuse and then put it back again. Vacuum lines cost just a few bucks each, but tracing the source of the leak can be time-consuming and expensive if youre not performing the work yourself. Replace it when you get the light to see if that is the problem. Flashing check engine light! - SaturnFans.com Forums Before you panic, you want to read the possible causes for this to happen. Another of its cars apparently came to halt in the middle of the street, the news outlet said. It may also cause a car to fail an emissions test. Usually, this is 10-30 cycles. Do you like StartMyCar? When you refill the gas tank with the engine running, the sensors continue to measure pressure. The check engine light can alert you about some failures but not all of them. In some cases, one cycle of the ignition will cause the light to go off after a self-check. take the ground line of the battery and press the brake for a few minutes and if the life is still on have the vehicle scann and clear code and have the emission components for the vehicle check. If the fuel cap is loose, tighten it and continue driving. Depending on what the problem is, there may be a small amount of time you can wait before getting the repair. For 2022, CarMD's top 10 check engine codes are: 1. Keep in mind that the fault code that caused the light to turn on in the first place is stored in your cars onboard computer, and you can retrieve it using a simple device to get a precise idea of what exactly is wrong under the hood. Common Reasons Why Your Check Engine Light Turned Off By Itself, 2. P1300 Ignitor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Saturn Check Engine Light Code, P1305 Ignition Coil 2 Primary Feedback Circuit, P1310 Ignition Coil 3 Primary Feedback Circuit, P1315 Ignition Coil 4 Primary Feedback Circuit, P1320 IC Module 4X Ref Circuit Intermittent, No Pulses, P1321 Electronic Ignition System Fault Line, P1322 EI System Or Ignition Control Missing, P1323 24X Reference Circuit Low Frequency, P1336 Crankshaft Position (CKP) System Variation Not Learned, P1346 Intake Camshaft Position (CMP) Sensor System Performance, P1352 IC Output High/Pulse Detected When Grounded Cyl.2, P1353 IC Output High/Pulse Detected When Grounded Cyl.3, P1354 IC Output High/Pulse Detected When Grounded Cyl.4, P1355 IC OUtput High/Pulse Detected When Grounded Cyl.5, P1356 IC Output High/Pulse Detected When Grounded Cyl.6, P1357 IC Output High/Pulse Detected When Grounded Cyl.7, P1358 IC Output High/Pulse Detected When Grounded Cyl.8, P1362 IC Cylinder 2 Not Toggling After Enable, P1363 IC Cylinder 3 Not Toggling After Enable, P1364 IC Cylinder 4 Not Toggling After Enable, P1365 IC Cylinder 5 Not Toggling After Enable, P1366 IC Cylinder 6 Not Toggling AFter Enable, P1367 IC Cylinder 7 Not Toggling After Enable, P1368 IC Cylinder 8 Not Toggling After Enable, P1370 IC Module 4X Reference Circuit, Too Many Pulses, P1372 Crankshaft Position Sensor Circuit Performance, P1377 IC Module CAM Pulse To 4X Reference Pulse Comparison, P1380 Misfire Detected - Rough Road Data Not Available, P1381 Misfire Detected - No Communication with Brake Control Module, P1390 Wheel Speed Sensor 1, G-Sensor Circuit, P1391 Wheel Speed Sensor 1, G-Sensor Circuit Performance, P1392 Wheel Speed Sensor 1, G-Sensor Circuit Low Voltage, P1393 Wheel Speed Sensor 1, G-Sensor Circuit High Voltage, P1394 Wheel Speed Sensor 1, G-Sensor Circuit Intermittent, P1395 Wheel Speed Sensor 2, G-Sensor Circuit, P1396 Wheel Speed Sensor 2, G-Sensor Circuit Performance, P1397 Wheel Speed Sensor 2, G-Sensor Circuit Low Voltage, P1398 Wheel Speed Sensor 2, G-Sensor Circuit High Voltage, P1399 Wheel Speed Sensor 2, G-Sensor Circuit Intermittent, P1403 Exhaust Gas Recirculation System Valve 1 - Read Our Article on EGR Valve Codes For Help With This Saturn Check Engine Light Code, P1404 Exhaust Gas Recirculation System Valve 2 - Read Our Article on EGR Valve Codes For Help With This Saturn Check Engine Light Code, P1405 Exhaust Gas Recirculation System Valve 3 - Read Our Article on EGR Valve Codes For Help With This Saturn Check Engine Light Code, P1406 EGR Valve Pintle Position Circuit - Read Our Article on EGR Valve Codes For Help With This Saturn Check Engine Light Code, P1407 EGR Air Intrusion In Exhaust Supply To EGR Valve - Read Our Article on EGR Valve Codes For Help With This Saturn Check Engine Light Code, P1408 Intake Manifold Pressure Sensor Circuit, P1409 EGR Vacuum System Leak - Read Our Article on EGR Valve Codes For Help With This Saturn Check Engine Light Code, P1415 Secondary Air Injection (AIR) System, P1418 Secondary Air Injection System Relay A Control Circuit High, P1420 Intake Air Low Pressure Switch Circuit Low Voltage, P1421 Intake Air Low Pressure Switch Circuit High Voltage, P1423 Intake Air High Pressure Switch Circuit High Voltage, P1432 Fuel Level Sensor 2 Circuit Low Voltage, P1433 Fuel Level Sensor 2 Circuit High Voltage, P1441 Evaporative Emission (EVAP) System Flow During Non-Purge, P1442 EVAP Vacuum Switch High Voltage During Ignition On, P1451 Barometric Pressure Sensor Performance, P1501 Vehicle Speed Sensor Circuit Intermittent, P1502 Theft Deterrent System - No Password Received, P1503 Theft Deterrent System - Password Incorrect, P1511 Throttle Control System-Backup System Performance, P1515 Control Module Throttle Actuator Position Performance, P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position In this tutorial, learn how to reset the light if it is not functioning properly. P1117 Engine Coolant Temp Signal Out-Of-Range Low. These emissions devices operate at high temperatures to cut emissions but can pose a fire hazard if faulty. The most obvious answer is to get the engine checked by a mechanic, but you may be tempted to ignore it, especially if you know that a steady light is less of an immediate concern than a flashing one. The large touchscreen is easy to navigate and allows you to manage music, settings and functions. Will the check engine light reset itself? Below you will find the most complete list of Saturn trouble codes available. I recently put in a new throttle body and I still get reduced power and . Beware of the flashing SES indicator! 2004 Saturn Vue 122,000 mi, Visitor. If you can perform the repair yourself, you will save a lot of money by avoiding the professional labor fees. Start by finding your cars OBD II port. Just keep in mind that you'll have to figure out where your car's OBD-II port is (typically somewhere in the driver footwell) and get comfortable with plugging in and operating the code reader. First, you wont know if another problem arises during that time. If the light comes on, Mazor suggests the driver check the gas cap. Edmunds lets you track your vehicle's value over time so you can decide when to sell or trade in. - Additional information on check engine lights. Common Causes & How To Fix It, Electric Parking Brake Problems Causes & Fixes, Oil Coming Out Of Exhaust Causes & Fixes. If you have a flashing check engine light, turn off the engine immediately to prevent potential motor damage. The problem is that these codes arent that easy to understand. Engine, Guides, Warning Lights. If you find one missing let us know and we we'll add it immediately! We can provide information on component location, specifications, circuit color/location and more. Upgrade your lifestyleDigital Trends helps readers keep tabs on the fast-paced world of tech with all the latest news, fun product reviews, insightful editorials, and one-of-a-kind sneak peeks. If you dont have the code, ask your local dealer for it before you unbolt the positive and negative terminals. Once the problem is solved, it is recommended to switch off the ignition, then switch it again, check to see that the engine check light is not on again, and recheck from the scanner whether it is giving the same fault again or not. If the fault isnt bad enough to keep the Check Engine Light on, you may be able to read the codes anyway. A record of the codes can be found in the computer until you reset them. You can also drive for a long time after fixing the problem, and the check engine light will disappear by itself. Otherwise, youll be driving in silence. How to fix your Check Engine light Mobil1. Reduced gas mileage and stalling can also indicate a MAF problem. https://www.youtube.com/user/azasepul23 ABS and Traction Control Light On Causes & How To Fix It, Car Struggles To Start But Runs Fine: Causes & How To Fix It, How to Reset a Check Engine Light in 5 Simple Steps, 5 Reasons Why Your Check Engine Light Is On But No Codes, Flashing Check Engine Light? Then try to drain any available electricity present in the car's capacitor by pressing the horn for around 20-30 seconds or turning on the lights. For example, if you have bad spark plugs and you continue driving, you could cause damage to the catalytic converter. A check engine light can indicate a broad spectrum of problems with your 2006 Saturn Vue. When the Check Engine Light (CEL) comes on it means there is a fault detected by your car's diagnostics which may be related to the engine, transmission, or emission system. The first and most critical is routine, preventative maintenance. The most common check engine light causes of your Saturn and how to detect them. Ronald is a senior consumer advice editor and content strategy at Edmunds and has also contributed to the Associated Press. 2. One icon that you should never ignore is the orange, engine-shaped one that is usually found in the instrument cluster. Brand: Saturn runs fine, but 'Check engine' light stays on - Star Tribune Getting it done right in the first place might cost a little bit more, but the peace of mind that comes with having a fully functional alarm is priceless. Other common issues include cracked fittings and loose connections. His code reader detected a code for the cam angle sensor. You can reset the check engine light without disconnecting the battery by using an OBD2 scanner. Once the code is decoded, the problem is detected. Problem with exhaust gas oxygen sensor (Lambda probe): irregular engine running, there are misfires when accelerating abruptly or driving at low revs. How to Reset the service engine light on a Saturn S-Series Autonomous cars confused by San Franciscos fog, You can sit in a Porsche (gaming) chair every day for $2,500, Add Apple CarPlay or Android Auto to your car with these head unit deals. Expect to spend about $50 on a set of plug wires. Used car values are constantly changing. The best way to reset the check engine light without a scan tool is by removing the battery terminal for 30-60 seconds. Take care of your vehicle today and it will provide you with service tomorrow. If the light turned itself off, the problem has probably worked itself out. Its function is to alert the driver about any type of engine problems. Reduce your speed and take the vehicle to a mechanic as soon as possible. P1116 ECT Signal Unstable Or Intermittent - Read Our Article on Intermittent Diagnosis For Help With This Saturn Check Engine Light Code. In other words, dont wait until the check engine light comes on to get your car maintenance done. No matter how many you have though, a malfunctioning coil will almost certainly trigger the check engine light, but remember, if your car burns diesel, you have neither ignition coils nor spark plugs. Plus, not every fault code can reset itself, especially the more severe ones. Wondering why your check engine light turned off by itself? It directs the hot exhaust gases back into the combustion chambers, which makes fuel easier to burn. The engine light (check powertrain light) is a visual indicator on your vehicle's dashboard that comes on when there's a problem in your Onboard Diagnostics System (OBD). Most motorists simply take their car to the dealership. Ronan Glon is an American automotive and tech journalist based in southern France. If youve tightened up the gas cap after seeing the alert, the warning light could reset on its own after a diagnostic check. Its best not to ignore these warnings but to perform some diagnostics. If this air-fuel balance gets slightly off-kilter, the Check Engine Light may come on temporarily.