Toyota Check Engine Light Codes

In most cases, you will have to have it diagnosed by a competent mechanic. If there's any indicator that there's something wrong with your Jeep Wrangler, the check engine light would be the biggest clue. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. Buy OBD2 Scanner Code Reader Car Diagnostic Tool - OBD 2 Check Engine Light Scan Auto Computer Readers with Reset - OBD-II Automotive Tools Sensor ABS Car Accessories for Automobiles Diagnostics Scanners: Code Readers & Scan Tools - Amazon. I had a TPS code coming up on my 93 PU 22re. Instead, I went through the entire OBD II code list and picked out codes I’ve seen set in the real auto repair world. 3L V6 engine, with just under 90,000 miles. The Tire Pressure Monitor Light is different than the check engine one. thanks Update: My corolla is 2001 I had the codes run the other day. A blinking check engine light means the engine is not running properly ( a miss fire leak injector some along the lines of that) and could cause damage to the catalytic converter or the engine it self. Two months ago I had the exact same issue as the original poster. I pulled the codes and it was totally unrelated to the vsc system. Remove the panel cover to access your vehicle's fuses. com FREE DELIVERY possible on eligible purchases. A week ago, on my Lexus ES 300 (2001), "Check Engine" and "Trac Off" lights came on. The technician can tell if you recently (within 50 miles or so) deleted the code. Next time you start car, light should be off. It will then throw the check engine light. The check engine light will come on every 5000 miles to remind you of your oil change. The Toyota has backup 02 sensors. If the actual amount of the purge flow is different from what is expected, the engine computer determines a fault and stores the code P0441 Evaporative Emission Control System Incorrect Purge Flow. Either it's the car plug (socket) problem or wiring or something else. The Tire Pressure Monitor Light is different than the check engine one. HOW TO RESET CHECK ENGINE LIGHT WORKS ON ANY TRUCKS CARS SUV MAZDA FORD GM HONDA TOYOTA CHEVY AND WHAT DIAGNOSTIC TESTER METER TOOLS USED TO RESET WARNING LAMP IS OBD2 SCANNER TO BUY SEE LINKS. The code is gone now and your check engine light should be off. When we bought our 2001 Toyota Sienna in 2011 the check engine light was off. How To Diagnose Your Check Engine Light For Free. The check engine light is an irritation for many drivers, but it gives you essential information about your car and shouldn't be ignored. A week ago I got the Check Engine light and borrowed a tester from a friend and got a p0442 and p0456 along with the words emission leak (very small). If the onboard computer gets a reading that’s a bit out of whack, the check engine light comes on. Check Engine light codes are known as Diagnostic Trouble Codes or DTCs. We came to know that the van had a long history regarding that code. I've had this done at NAPA and Advance Auto Parts. I had the vsc light and check engine light on at one point. We list common check engine light codes for you on this page at the bottom. Any thoughts? One thought, I don't drive that often, does the car need to be on for a certain period of time before the check engine light comes on? Car runs great and has about 130,000 miles on it. In Nov 2007, at 88,000 miles, the light went on for the first time. The ABS light and the check engine light on my 2007 Toyota Axio is on. Toyota 4Runner 1984-1995: How to Reset Check Engine Lights. Read and acknowledge the information presented. If your Check Engine Light is on, our Professional Parts People will scan the code for you and provide a list of possible fixes. The technician can tell if you recently (within 50 miles or so) deleted the code. My Check Engine Light Came on while driving on the highway. However manufacturer may have a different definition for the P1604 OBD-II Diagnostic Powertrain (P) Trouble Code. Turn ignition off. You can get that for free at most auto-parts stores. Diagnose the check engine light yourself. I was discussing the behavior a car's check-engine light. com, your headquarters for everything OBD-II related. Kindly tell me what would be the problem then. The light was reset and they sent her on her way. This can create potential confusion. When you see the check engine light it doesn't necessarily mean you need to pull the car over to the side of the road and call a tow truck. Repair Information for P0171 Toyota code. Check Engine / VSC / 4WD Lights are on! It is my understanding the replacement of the charcoal canister is covered under the Federal Emissions Warranty > 8 / 80,000. Step 5 – Reset the check engine light. Technology is on its way to helping us figure out what’s gone wrong when the check engine light comes on. If you like to reset any maintenance oil light after an oil change. But if you have something real, just take it to an auto zone or parts retail store like it and have them check your code if you don't own a code reader. There is nothing wrong with the carso I don't need to take it in to have it looked at. No check engine light but codes My check engine light is on but no codes. When the check engine light turns on, a fault code or OBD II code, detailing the nature of the issue is registered in your vehicle's diagnostic system computer. If your Check engine light is on you may have a serious problem. VSC stands for “Vehicle Stability Control“. It will then throw the check engine light. A friend of mine took her Matrix to the dealer two weeks ago for a check engine light. He said that we would need to take it to a Toyota place for them to tell us what it needs. Check engine code list, OBD 1, OBD 2, OBD-II Check Engine Light, Trouble Codes, engine fault code list, most current code, Toyota. Gain access the interior fuse box, which is located to the left of driver's side dash. What to do when your Toyota check engine light turns on. My 01 Toyota Tundra check engine light has been on for approx 80,000 miles. How To Diagnose Your Check Engine Light For Free. Just plug in the tool, turn on your car, and read the fault codes. Thoughts on what else it could be or how to confirm. If the actual amount of the purge flow is different from what is expected, the engine computer determines a fault and stores the code P0441 Evaporative Emission Control System Incorrect Purge Flow. Check Engine Light Codes. Your check engine light typically comes on when there is a problem with your emission control system or another computer-controlled system in your vehicle. This covers Toyota Motor Corporation OBD I diagnostic and explains how to get the codes without any special tools. Use the fuse panel diagram on the inside cover to determine the location of each individual fuse. – Gunner Apr 17 '18 at 17:45. It is a pain if the check engine light comes and you are short on cash or a code reader! If you are near one of the major chains they can usually provide you with a printout of what the OBD reading says on your vehicle. Toyota OBD readers will help you a lot in avoiding unnecessary accidents, since you can easily detect any problem in your car which might lead to you causing an accident. Typically, you can drive your car with the check engine light on as long as it's running smoothly. I recently washed the engine at the car wash and noticed a short time later that the check engine light was on. To turn off the check engine light on a 1999 Toyota Camry you can disconnect the battery. As per your ATS instruction manual, I changed the egr valve, dpfe sensor, egr solenoid including the blowing of air passages of the egr system of this engine yet this same code keeps coming back. Two months ago I had the exact same issue as the original poster. For help with Toyota Sienna Oxygen Sensors click here. 96 Toyota Camry Check Engine Light is On, What Are My Options? Showing 1-7 of 7 messages. Found on the instrument panel of most automobiles, it usually bears the legend check engine, service engine soon, maintenance required, or a pictogram of an engine—and when illuminated, it is typically an amber or red color. " The check engine light will shut off. 3L V6 engine, with just under 90,000 miles. 5 times the legal limit. )Note: Toyota, in 1987, began assigning dual letter engine codes to some of the "engine family" categories in some engine lines, particularly six cylinder models. If the onboard computer gets a reading that’s a bit out of whack, the check engine light comes on. Our Free Check Engine Light Code Retrieval Service provides you with quick and accurate answers from a professional Pep Boys technician. The indicator light stops flashing after the ENGINE START STOP switch has been turned to ACCESSORY or IGNITION ON mode to indicate that the system has been canceled. When retrieving Toyota check engine light codes with an OBD II scan tool, proceed as follows: 1. Common Toyota Engine Trouble Codes (and What They Mean) When that alarming warning light on your dash illuminates to alert you to "service engine soon" or "check engine", your Toyota is trying to tell you something. The ABS works closely with the VSC. Welcome to OBD-Codes. The check engine light and traction light went on simultaneously. Check Engine Light Toyota Camry–Don’t Panic! The Check Engine light on your Toyota Camry (also known as a Malfunction Indicator Light, MIL), when illuminated, usually means there’s a problem with the vehicle’s emissions system. The light generates a code that can help you narrow down the problem so you can get it fixed. The 2003 Toyota Corolla has 3 problems reported for check engine light on. If the actual amount of the purge flow is different from what is expected, the engine computer determines a fault and stores the code P0441 Evaporative Emission Control System Incorrect Purge Flow. Throttle valve is fully closed (Throttle Position Sensor IDL points closed). It is likely that "Traction Control" will not work while this light is illuminated. For help with Toyota Sienna Evap Codes P0446 P0440 P0441 P0442 Read my comment on our engine overhaul, sludge and problems with www. So, I replaced myself, with Bosch 13540 bought at o'reilly for $169. What your mechanic probably won't tell you is that you really didn't need to shell out $100 just for them to hook up an OBD-II scanner to check on the service engine light. The check engine light should go off after you drive for several minutes if the light was caused by a loose gas cap. com FREE DELIVERY possible on eligible purchases. On the advice of a friend I took it to Auto Zone for a free diagnostic check. Because it is made for Windows & Android, it has been seen to have the affinity of working in the Toyota and other diverse car brads. Learn what does P0171 Toyota Air/Fuel Mixture System Lean Bank 1 means, location and how to repair?. Removing the light requires resetting the vehicle's computer. FYI, technically, old codes do not get cleared after a given amount of start/stop cycles. When you check Toyota Coaster car engine light came on code P1604 the reason should be Engine Light ON (or Service Engine Soon Warning Light). In this case, if you don't know how to reset check engine light, here are 4 useful way for you. Otherwise, code 12 will flash 3 times before flashing the fault codes. george melnik 690,506 views. Generally, when a P0441 code is set, other codes are also present, and these other codes often give a clearer indication of what might be wrong with the EVAP system. It was lightly snowing, the kind of snow that doesn't stick but turns everything into a horrible…. Keep your engine running right! If your car requires major engine work, it may be more economical to have your engine rebuilt rather than buying a different car. If you have a Toyota vehicle (in this case a 2007 Camry) with a V6 2GR-FE engine and have a check engine light on with code P0356 Ignition Coil "F" Primary Secondary Circuit set in the ECU, then replace the coil with a genuine Denso brand coil. Diagnosing a check engine light with a scan tool is easy to do. It could be a misfiring engine, a broken oxygen sensor or simply a loose gas cap. Whats up with this blinking, is it normal? Thanks. We went to a lot of places to fix it but still it comes back. Q: What does the Service Engine Soon Light mean? The meaning of the "Service Engine Soon" Light is dependent on the make and model of your car and the manufacturer's specifications. When driven, owners may see the check engine light come on and the computer will store any of these trouble codes P0440, P0441, or P0446. This is an all inclusive list intended to help you get not only a code definition, but also some information on what could cause these codes and what can be done to repair the related faults. He went to go see a friend of his who has this computer thing that gives the code for what's wrong with the car and the code is PO442. VSC stands for "Vehicle Stability Control". I am in the process of trying to get the local dealer to cover this. The check engine light can be a bane or boon when it comes to owning a car, especially considering hundreds of things could trigger it. Your mechanic can perform a computer analysis that will reveal the problems that can be causing the Check Engine Light to come on in the form of alphanumeric codes known as P codes. There is nothing wrong with the carso I don't need to take it in to have it looked at. Check Engine / VSC / 4WD Lights are on! It is my understanding the replacement of the charcoal canister is covered under the Federal Emissions Warranty > 8 / 80,000. To retrieve an OBD-I code, a mechanic must jump two terminals in the check engine connector and observe the check engine light to decode a pattern of blinks. Check engine light still on. Have you ever wondered what causes a car's check engine light to come on? Here, we list some of the most common mechanical and electrical problems that can trigger this important warning, and. Jeep Wrangler Check Engine Light Codes. There are several hundreds of powertrain codes, but some are much more common than others. what the ecu does do is continually re-evaluate base/normal parameters over start/stop cycles and update itself automatically. Toyota Check Engine Light Codes. When you see the check engine light it doesn't necessarily mean you need to pull the car over to the side of the road and call a tow truck. Check Engine / VSC / 4WD Lights are on! It is my understanding the replacement of the charcoal canister is covered under the Federal Emissions Warranty > 8 / 80,000. NOTE: Not all trouble codes will activate MIL (CHECK ENGINE light) Before proceeding, make sure the: CHECK ENGINE light circuit is functional. For help with Toyota Sienna Evap Codes P0446 P0440 P0441 P0442 Read my comment on our engine overhaul, sludge and problems with www. The Horror of the Check Engine Light and the Joy of Fixing It. When the check engine light shows up in your 1990-95 Toyota vehicle, the quickest way to get the code is to access the diagnostic connector in the engine compartment ( usually sitting in the fender) or by the kick panel under the dash board in the passenger side. Volkswagen. So you should chech it on our car models. Q: What does the Service Engine Soon Light mean? The meaning of the "Service Engine Soon" Light is dependent on the make and model of your car and the manufacturer's specifications. Am I missing something? I also reset the code but the check engine light with the same code is on all the time. In this case, if you don't know how to reset check engine light, here are 4 useful way for you. FIXD explains symptoms, causes, and severity of P0141. 140000 miles. Let's take a look at how to clear that pesky "check engine" light, so you don't panic when driving down the highway. To clear the confusion, we need a basic understanding of what the check engine light is trying to tell us. No check engine light but codes My check engine light is on but no codes. My dad has a 2003 Toyota Echo and recently the check engine light has been coming on. You may also need to manually reset the light. If there is no delete button, scroll through the menu options on the scanner using the arrow keys and select "Erase Codes. Continue driving and see if the check engine light turns off. It could be a misfiring engine, a broken oxygen sensor or simply a loose gas cap. On the advice of a friend I took it to Auto Zone for a free diagnostic check. Needed inspection done, so I took to o'reilly and they said, Code P0155 is Bank 2 Sensor 1 Oxygen Sensor according to o'reilly auto parts. Now you can clear the ECL codes by resetting the ECU. It has the 3. You know something is wrong (which is good!), but you don't know what. Now what? Here is the fuel tank on your Sienna. “CHECK ENGINE” light to warn the driver, and sets a Diagnostic Trouble Code (DTC) to identify where the problem occurred. My Check Engine Light Came on while driving on the highway. So I took the battery teminals of for a 10 min and re-checked it. Vehicles without a Smart Key System: The indicator light flashes after the key has been removed from the engine switch to indicate that the system is operating. Some codes may call for further diagnosis. Most of drivers feel annoying when they see the Check Engine Light still turn of even the car problem was solve. However manufacturer may have a different definition for the P0793 OBD-II Diagnostic Powertrain (P) Trouble Code. It could also be a warning of a serious problem that could damage your engine components. Be sure the ignition key is on, the engine off, and your foot off of the accelerator when reading the codes. The indicator light stops flashing after the ENGINE START STOP switch has been turned to ACCESSORY or IGNITION ON mode to indicate that the system has been canceled. I pulled the codes and it was totally unrelated to the vsc system. Repair Information for P0420 Toyota code. When you check Toyota Coaster car engine light came on code P1604 the reason should be Engine Light ON (or Service Engine Soon Warning Light). Instead, I went through the entire OBD II code list and picked out codes I’ve seen set in the real auto repair world. Continue driving and see if the check engine light turns off. Hey I have a 2000 prerunner v6. All I am trying to do with this thread is to explain to people the reason a check engine light comes on and how to properly start the process of figuring out why it is on. " When the check engine light is illuminated, it is indicating that a problem in the engine management system has been detected. I am not aware of any way to read the trouble codes on your Corolla other than using an OBD-II scan tool. A check engine light can indicate a broad spectrum of problems with your 2000 Toyota Camry. The TSB is dated 3-24-09. To retrieve an OBD-I code, a mechanic must jump two terminals in the check engine connector and observe the check engine light to decode a pattern of blinks. Or reset check engine light, airbag light, inspection key or insp errors when maint reqd, for Toyota cars. Consumer Reports tells you what the check engine light means and what you should do when you see it. Check engine code list, OBD 1, OBD 2, OBD-II Check Engine Light, Trouble Codes, engine fault code list, most current code, Toyota. The Check Engine light on your car is both useful and infuriating. The check engine light came on in my 2002 Toyota Tundra pick-up truck. the check engine light may also go out, but the old codes. Wait while the code scanner reads the trouble codes. oilgelsettlement. When the check engine light comes Toyota Sienna P0356 code on the first you should check is the gas cap. The Horror of the Check Engine Light and the Joy of Fixing It. This isn't a complete or exhaustive list of every code that could set in your computer's memory. Never ignore a warning light. Have you ever wondered what causes a car's check engine light to come on? Here, we list some of the most common mechanical and electrical problems that can trigger this important warning, and. 4L V6 engine. The ECM (Engine Control Module) which controls the Engine Light will clear, but the SRS light will not. Check engine code list, OBD 1, OBD 2, OBD-II Check Engine Light, Trouble Codes, engine fault code list, most current code, Toyota. I pulled the codes and it was totally unrelated to the vsc system. when that check engine light flickers to life in your new Toyota Prius, it can be extremely aggravating. By Peter Anderson 16 Comments-The content of this website often contains affiliate links and I may be compensated if you buy through those links (at no cost to you!). We list common check engine light codes for you on this page at the bottom. A check engine indicator is a malfunction-indicator light or MIL for the computer-management system. Use the fuse panel diagram on the inside cover to determine the location of each individual fuse. Because it is made for Windows & Android, it has been seen to have the affinity of working in the Toyota and other diverse car brads. This is an all inclusive list intended to help you get not only a code definition, but also some information on what could cause these codes and what can be done to repair the related faults. You may also need to manually reset the light. The tools are inexpensive as well, starting at around $60, and going up to several hundred dollars. Below you will find the most complete list of Toyota trouble codes available. Let us know what it is. But on the way home from the dealer the light came on. there is a 1. This will only reset the check engine light. Instead, I went through the entire OBD II code list and picked out codes I’ve seen set in the real auto repair world. So you should chech it on our car models. I knew why my light came on so I just diconected the battery to reset it. What your mechanic probably won't tell you is that you really didn't need to shell out $100 just for them to hook up an OBD-II scanner to check on the service engine light. FIXD explains symptoms, causes, and severity of P0141. Then start counting the number of times the Check engine light blinks. Check Engine Light: The Mechanic's Dirty Little Secret. Kindly tell me what would be the problem then. Welcome to OBD-Codes. When the check engine light turns on, a fault code or OBD II code, detailing the nature of the issue is registered in your vehicle's diagnostic system computer. Most onboard computers will recheck whatever problem caused the check engine light to activate multiple times. They said they checked all the valves and at the time they were working. Your check engine light comes on, you get the codes read and they're P0440, P0441, P0442 and P0446 or a combination. Check MIL is flashing to confirm test mode is operating NOTE: Test mode will not be activated if the DLC terminals are connected after the ignition switch is turned ON. For help with Toyota Sienna Oxygen Sensors click here. When possible we give the more commonly known OBD II component name. Using a code reader to pull the check engine light code will point you in a direction to look, but it will not tell you precisely what is wrong with your vehicle. – Gunner Apr 17 '18 at 17:45. We wrote about some of the common codes, including possible causes and diagnostic information. I'm skeptical from what I've been reading online. When we bought our 2001 Toyota Sienna in 2011 the check engine light was off. To turn off the check engine light on a 1999 Toyota Camry you can disconnect the battery. Why these codes? Well, these are the most common codes. There are several ways to reset the "check engine" light on a Toyota Matrix, which include removing the proper fuse, disconnecting the battery or using a diagnostics machine. Guides Toyota Celica. Ford Owners You can check their check engine light using the diagnostic connector located at the engine compartment by the fender near the battery. Have a Check Engine light on with no code? There are a number of reasons that this may be happening. When you see the check engine light it doesn't necessarily mean you need to pull the car over to the side of the road and call a tow truck. Location of the Diagnostic Link Connector (DLC). Cooling system failure is a leading cause of vehicle breakdowns. Free check engine light basics: How to diagnose any fault codes and save money in auto/truck repairs (1985-2013) Your check engine light is your first indicator if the vehicle has an engine problem however, you need to find first the meaning of that engine light code and it's equivalent repair. About 15 seconds after the engine is running, the VSC/TRAC and VSC OFF lights come on and all three remain steady. Today, in my 2001 4Runner, the Check Engine Light, the VSC Off and the VSC Trac lights all came on at the same time. Maybe it's an electrical snafu. Common Toyota Engine Trouble Codes (and What They Mean) When that alarming warning light on your dash illuminates to alert you to "service engine soon" or "check engine", your Toyota is trying to tell you something. Usually resulting in permanent engine damage. For some reason, toyota turns both lights on for whatever reasons. The "Check Engine" light is sometimes on my 2001 Toyota Corolla. The ECM (Engine Control Module) which controls the Engine Light will clear, but the SRS light will not. Learn how to determine whether your car has a loose gas cap—or a serious engine problem. It can be anything from a simple gas filler cap not seated properly, to an O2 Sensor to a mass air-flow sensorand others. The Toyota dealership said it was code P0171 -- Fuel Too Lean. Cooling system failure is a leading cause of vehicle breakdowns. If system is operating normally (with no detected faults), the CHECK ENGINE light will blink continuouslyand evenly about 2 times a second. To turn off the check engine light on a 1999 Toyota Camry you can disconnect the battery. A common problem with Toyota and Lexus vehicles is the owner may find the “VSC OFF” and “Check Engine” lights illuminated simultaneously. - Gunner Apr 17 '18 at 17:45. Toyota Camry: How to Reset Your ECU and Clear Check Engine Lights. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. At any rate they provided PO446,Po455 and PO441. Check Engine light codes. Rather than taking your car all the way down to your mechanic, you can get a pretty good idea what's wrong with your car with a simple OBD-II adapter. Two months ago I had the exact same issue as the original poster. 5 years back. I went to the local Auto Zone in town and they helped with the check engine light but said their scan was not sophisticated enough to scan for the Vsc light. Check Engine / VSC / 4WD Lights are on! It is my understanding the replacement of the charcoal canister is covered under the Federal Emissions Warranty > 8 / 80,000. The indicator light stops flashing after the ENGINE START STOP switch has been turned to ACCESSORY or IGNITION ON mode to indicate that the system has been canceled. Toyota Check Engine Light Codes. The check engine lamp alerts the driver or technician that a problem exists in the EFI/TCCS ECU or Engine Control Unit or "computer. If you aren't at 5k or some multiple thereof, and don't want to buy your own code checker, some auto parts stores will read the code for you for free. Alternately, you can purchase a gas cap for about $3 at an auto parts store. The fix would then be something severe and extremely costly like a catalytic converter(s) or engine replacement which cost on average $1,150 and upwards of $5,000 respectively to fix. We went to a lot of places to fix it but still it comes back. I have no clue what this means , maybe someone those. Every idiot oil change shop I take our Highlander to manages to knock this hose loose, even Toyota dealerships. This covers Toyota Motor Corporation OBD I diagnostic and explains how to get the codes without any special tools. Some Vehicle Specific Codes. How to Read the On/Off Flashes of the Check Engine Light. My 01 Toyota Tundra check engine light has been on for approx 80,000 miles. When the check engine light comes Toyota RAV4 P0607 code on the first you should check is the gas cap. We went to a lot of places to fix it but still it comes back. Cooling system failure is a leading cause of vehicle breakdowns. P0446 TOYOTA Meaning The Evaporative System canister vent control valve is located on the EVAP canister and is used to seal the canister vent. " When the check engine light is illuminated, it is indicating that a problem in the engine management system has been detected. I also recieved the warranty enhancement notice as well. Toyota Check Engine Light Codes. The yellow "Check Engine" light comes on to inform the driver of the Camry about the fault. It could be a misfiring engine, a broken oxygen sensor or simply a loose gas cap. Have you ever wondered what causes a car's check engine light to come on? Here, we list some of the most common mechanical and electrical problems that can trigger this important warning, and. A light on the dash signifies that your Toyota's engine control module, or ECM, has logged a problem. If the light goes off, we assume things are okay. the check engine light may also go out, but the old codes. Check for damaged components and look for broken, bent, pushed out, or corroded terminals. This can lead to rough shifting, performance problems, codes, and, yes, a "Check Engine" light. Technology is on its way to helping us figure out what’s gone wrong when the check engine light comes on. A common problem with Toyota and Lexus vehicles is the owner may find the “VSC OFF” and “Check Engine” lights illuminated simultaneously. What Are Toyota Dashboard Warning Lights and What Do They Mean? Have you ever been driving your new Toyota Camry and had some foreign looking light appear on your dashboard? It can be troubling, confusing and aggravating when you don't know what, if anything, is wrong with your new car. A certified mechanic should be able to diagnose the problem easily. The computer can't distinguish between an AC signal from a sensor and a false one from the alternator. This is an all inclusive list intended to help you get not only a code definition, but also some information on what could cause these codes and what can be done to repair the related faults. Are you asking about the Check Engine light, or the Maintenance Required light? Check Engine means you have a problem that should be diagnosed and corrected as soon as possible. To retrieve an OBD-I code, a mechanic must jump two terminals in the check engine connector and observe the check engine light to decode a pattern of blinks. But on the way home from the dealer the light came on. In this case, if you don't know how to reset check engine light, here are 4 useful way for you. Never ignore a warning light. Throttle valve is fully closed (Throttle Position Sensor IDL points closed). Common Toyota Engine Trouble Codes (and What They Mean) When that alarming warning light on your dash illuminates to alert you to "service engine soon" or "check engine", your Toyota is trying to tell you something. I had the vsc light and check engine light on at one point. What to do when your Toyota check engine light turns on. When you check Toyota Coaster car engine light came on code P1604 the reason should be Engine Light ON (or Service Engine Soon Warning Light). This will only reset the check engine light. The TSB is dated 3-24-09. I went to the local Auto Zone in town and they helped with the check engine light but said their scan was not sophisticated enough to scan for the Vsc light. Generally, from what I understand, a Code Reader will display the currently 'active' codes and this is when the Check Engine Light is on. To clear the confusion, we need a basic understanding of what the check engine light is trying to tell us. We went to a lot of places to fix it but still it comes back. thanks Update: My corolla is 2001 I had the codes run the other day. 99 (way overpaid now that I check online prices). For Instance, you may get a code for a catalytic converter inefficiency which may turn out to be a bad O2. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. So you should chech it on our car models. Last year, I started getting the P0051 engine code which is for the Bank 2 Oxygen Sensor 1 malfunction. 4L V6 engine.