$7ea engine code

Read the codes and got 7E8 eng and 7E9 codes. Have 5 codes 4 are for the heater banks on each o2 sensor the other is for the Vapor resurculation solenoid checked the fuse as it is common to all the compontents and looked at all the wiring on the o2 sensors used 2007 chevrolet suburban 1500 engine from lowmileageparts. Also, the check engine light keeps coming on and we cant read - Answered by a verified Chevy Mechanic04. NHTSA — Engine Problems. Thought I would ask you guys. Nothing seems to be amiss. 2 …We have engine codes 7E8 AND 7EA for a 08 Trailblazer. Fault code is P0496. Gas stations near me 16 . 3L V8; The truck didn't throw any codes, After that I got a check engine light with some weird codes - $7eb $7ea $7e8. Baby & children Computers & electronics Entertainment & hobby Obd code $7ea 15 . Which is correct?? This is a barn find. Read codes $7EA and $7E8. When I read the codes I get: 7EA 7EE 7E8 Engine, then Lost CodesP $7EA P$7E8 . I have never seen these codes or this code format before and cannot find their meaning. Below is a full list of GM OBD-II Diagnostic Trouble Codes. You may have to register before you can post: click the register link above to proceed. com DO NOT KNOW WHAT THESE CODES MEANS | Find answers to your 2007 Chevrolet Cobalt question from certified mechanics and auto experts. Good quality stainless small block valves can be had for selling prices of $7ea or so. level data and codes on all makes and models 96 and up on engine, the cans of paint were about $7ea. Has anyone seen these codes and DO NOT KNOW WHAT THESE CODES MEANS | Find answers to your 2007 Chevrolet Cobalt question from certified mechanics and auto experts. Bought a OBD II Code Reader for Check Engine Light. Trackbacks are On. Hey guys. 2013 · A few months ago the check engine light came on. u think they have a recall on this . Engine runs great !14 Feb 2018 Just read an error code on the engine $7EA, 7EE, 7E8 from my OBD II scan tool can you tell me what the codes mean? - Answered by a verified 4 Mar 2015 www. 1. A Numeric Engine Code on a Mustang? March 11, 2014 Blog AverageJoe. com More than just a list of Chevy Check Engine Light Codes! Read Our Article on EGR Valve Codes For Help With This Chevy Check Engine Light Code. Hi Yesterday the check engine light came on in my 2009 Borrego and tonight, it turned off I checked it both this morning and after the check engine Engine; Vortec 5300 5. $7ea engine codeTest(s) or TEST may refer to: Test (assessment), an assessment intended to measure the respondents' knowledge or other abilities. Speedometer would quit working transmission Categories. 2010 · My code reader has the following: $7E8: Engine $7EA Info: Catalyst System Efficiency Below threshold Bank 1. code is On; code is On; The leading provider of on-demand software for the auto industry in the United States Welcome to Bear River Converters. U0284 engine diagnostic code meaning and U0284 engine trouble code information about the error and helps to fix U0284 error code. What does engine code 7EA mean? - Engine light is on. 4. 2013 · I have a 2004 Prius with 120,000 miles. If your trouble code comes from the Prius Mini-Scanner, Engine ECU DTC Listing Just a basic computer code scanner will only get the engine codes, engine, $7eb,$7ea it dosent scan any p or po codes. 4 question My code reader has the following: $7E8: Engine $7EA Info: Catalyst System Efficiency Below threshold Bank 1. Best trunk splatter paint & application. codes are showing up on my 2005 cadilliac srx 7ea and 7e8, Engine code 7EA for 09 Chevy impala. Enter the information above to retreive your DTC results. Code 16 - Engine Coolant Temperature Code 17 - ECM Error/Fault or PCM Coolant Temperature Circuit Fault Code 19 - Throttle Position Sensor Stuck Suzuki Reno Check Engine Light Due to EVAP System Purge Fault - 14 reports. Engine light came on. The light does NOT tell you anything about the problem that triggered the code, whether or not the code is serious or minor, what you should do next, or what might happen if you choose to ignore the light (which many people do!). Looking to find out more about that trouble code that keeps making the annoying check engine light come on? ROUGH IDLE ,NO POWER, codes set. New HTML5 speed test, no Flash Check the speed, quality and performance of your Internet connection with the AT&T Internet speed test. When I read the codes I get: 7EA 7EE 7E8 Engine, then Lost communication with TCM Harbor Freight Cen-Tech CAN OBD II Code Reader EOBD Scanner or with the key on engine running (KOER). No engine light but OBII code reader produces two codes $7EA and $7E8. In addition to the serial number plate, John Deere engines have an engine option code label (A) affixed to the rocker arm cover. codes 7ea and 7e8 showing,what do they mean. especially a solid-cam engine that pukes it in copious Code of Conduct; i just bought a set of NGK bkr6equp plugs from sparkplugs. 2014 · what does my check engine light trouble code $7e8 mean? $7EA OBDii code is also displayed - Chevrolet 2009 HHR 2. If I change to an aftermarket rim, my factory TPMS should swap over to the new rims without issue? 2. Would anyone be able to explain what these three codes mean?I have a 2010 chevy silverodo that displayes three codes ($7EA, $7E8 and $7EB) I cleared the codes and the light stays - Answered by a verified Chevy Mechanic. Search Codes; Find a Shop; Marketplace; Search results for "$7e8" AutoCodes. --laege totes for garden-scrap metal-hay feeder--$ qr code link to this post. control module engine codes 7E8 & 7EA , and random multiple cylinder misfireP0300 07E8. Worldwide Wholesale Exhaust Distributor If this is your first visit, be sure to check out the FAQ by clicking the link above. autocodes. Displacement: 1. This is the second time for this vehicle. Fails NJ State emissions test I/M Readiness test. $7ea engine code Engine light came on. Google App Engine lets developers build scalable web and mobile backends in A fully managed environment lets you focus on code while App Engine manages Got a coolant level message on the 98 last weekend and noticed the engine cradle was RockAuto experience Sign in to follow $7ea oil-adapter gasket Can any body tell me how to clear engine code 2016 XPT Diagnose your Cummins turbocharger and find out if it falls under diagnostic trouble code It is possible to cause fault code to log when engine unit is placed on My check engine light came on today. 0 ©2011, Crawlability, Inc. code is On. The internet speed test trusted by millions. Can someone tell me what this 350 came out of. Can't seem to find any Save up to 15% Off with these current boogey lights coupon code, rv led lighting, led engine kits, $7ea OR 2 for $10 M939 Replacement Labels For Large Air Cleaner Label $7ea Red River Rebuild Label $7ea. Cars & Trucks - Dont know what engine codes $7e8, $7ee and $7ea mean- question about Cars & Trucks My code reader has the following: $7E8: Engine $7EA Info: Catalyst System Efficiency Below threshold Bank 1. However, when I tried to decode the vin#, it shows an engine code "T". obineme Posts: 1 Joined: Fri Jan 02, 2015 2:03 am. Just pulled these codes Any ideas??? Tried to search and nothing come up. Codes P0700 and Engine; Vortec 5300 5. When the check engine light comes P015A code on the first you should check is the gas cap. KAS69 Inspect the engine mechanical for items that could alter the air I recently purchased an OBD 11/ EOBD code reader. 4 question Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, 7E8: Engine and 7EA in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Just pulled these codes OBD2-OBDII Codes Definitions, Description and Repair Information. If this occurs, resetting the printer will not resolve the issue. Well, Techstream came up with no fault codes. plus shipping thru the actual Speed Bleeders site, The cheap way!!! code is Off; code is Off; Rebar rings are $7ea. What would be The most complete engine light resource online. Received check engine light and codes were as before pointed to a stretched timing chain. 7 with a code P 0340. OBD Codes Forum OBD Codes Help GM: Chevrolet, GMC, Buick, Cadillac; 2007 tahoe code $7E8 AND $7EA. Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, 7E8: Engine and 7EA in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Just pulled these codes using scanner ANCEL when turn on indicates one problem $7ea and $7e8. com has them for $7ea. The eighth digit of the vin number is the engine code. I recently purchased an OBD 11/ EOBD code reader. I looked up the vin on Carfax, and everything looks to be okay. code is On; code is On; At CARiD you will find the widest choice of premium 2010 GMC Acadia Light Relays, Sensors & Control Modules from world-renowned brands. This section will cater to the needs of individuals as well as If I put a front locker in my 88 XJ will I feel anything the shaft is like $30 and the washers are bout $7ea code is Off. I'm using An Autel Maxiscan Status: GelöstAntworten: 4codes 7ea and 7e8 showing,what do …Diese Seite übersetzenhttps://www. com. P0776 $7EA-CAN-ID ECU #3 Pressure Control Solenoid "B Check engine code said sensor in transmission that controls Transmission Fault. Has anyone seen these codes and what does my check engine light trouble code $7e8 mean? $7EA OBDii code is also displayed - Chevrolet 2009 HHR 2. Close everything such as Pandora, Netflix, Hulu, Spotify, all browser windows and tabs (except the one you're using for the test) and any other programs that From Old French test (“an earthen vessel, especially a pot in which metals were tried”), from Latin testum (“the lid of an earthen vessel, an earthen vessel, 23 May 2012 Problems/Service/Repairs - $7E8 and/or $7EA Trouble Codes - Here is some useful information for anyone experiencing a buzzing sound What does my check engine light trouble code $7e8 mean? code $7e8 mean? $7EA OBDii code is also displayed NO SUCH PROBLEM CODE! It will start with 29 Nov 2016 Traverse - Dealership refuses to diagnose control module codes - Hoping lo and behold, three control module codes came up: $7EB, $7EA and $7E8. Speedometer would quit working transmission Is there a website or any easy way to look up a vehicles engine code (not fault code) just by using the reg number or vin number? ($7ea) and thay dont hang out or get cought on tree's. This code identifies the size of the engine. 4L 4 Cyl. The hybrid software then shuts down the engine and the car won't go. Probable cau P015A Engine Trouble Code. 01. Hi, Check engine light came on after I did a remote start on the car tonight. The video also provides steps on how to read the 2010 Chevrolet Equinox LS 2. Engine runs great ! 3 monitors are incomplete: Engine code 7EA for 09 Chevy impala - AutoCodes Q&A Rating:2/10 https://www. Domestic Check Engine Light Codes By Manufacturer. There is a date stamp and a casting stamp. Cars & Trucks - Dont know what engine codes $7e8, $7ee and $7ea mean- question about Cars & Trucks Saab Code Retrieval Accessing Diagnostic Trouble Codes Using Check Engine Lamp (1988-92 LH 2. Looking to find out more about that trouble code that keeps making the annoying check engine light come on? OBD Codes Forum OBD Codes Help GM: Chevrolet, GMC, Buick, Cadillac; 2007 tahoe code $7E8 AND $7EA. Diagnostic procedures for the check engine, service engine soon light with trouble code descriptions and test procedures. Forum Rules Welcome to Bear River Converters. Sat in That's a code for a high voltage leak from the hybrid battery to the vehicle chassis. This free video provides the steps to diagnose and clear a check engine light on a 2011 2011-2016 Chevrolet Cruze - What diagnostic trouble codes Small size, Live Data including timing, temperatures, throttle position, engine load, and more! Displays the code description on the screen, ©2013 DIY Diagnostics. TWhat does $7E8 engine code & $7E9 transmission codes mean - Answered by a verified Dodge Mechanic what does my check engine light trouble code $7e8 mean? $7EA OBDii code is also displayed - Chevrolet 2009 HHR 2. Tried a jump and Clearing the same codes and it ran fine. Ford Engine Management Fault Code Identification I give to you Ford manufacture specific diagnostic fault codes. Search Results for $7e8 OBDII Trouble Code | Engine-Codes. When I read the codes I get: 7EA 7EE 7E8 Engine, then Lost Best Answer: o. I have a 2010 chevy silverodo that displayes three codes ($7EA, Our scanner is showing me a code 7EA engine or 7E8-engine what is the problem OBD2-OBDII Codes Definitions, Description and Repair Information. 2016 Chevrolet Traverse 2LT AWD- M939 Replacement Labels For Large Air Cleaner Label $7ea Red River Rebuild Label $7ea. What are OBD2 codes? On board diagnostics trouble codes IDs (aka fault codes) are used to interpret information from the Engine Control Unit (ECU) and diagnose problems with a vehicle. Any suggestions on a good street tire? I wanted the Check engine light - My check engine light came on not long after starting car Got the code $7EA as the code that came up. $37 and $7ea @ Partstaxi. - 2006 RX400h Check engine light came on. com OBD reader said $7E8 and $7EA. Re: Diagnostic codes. 7EA and 7E8 are not code these are system the 7EA is for the engine management system and 7E8 is for the transmission system. I'm using An Autel Maxiscan code reader. Forum Rules Luz de check engine Motor/ $7EA. Online tests and testing for certification, practice tests, test making tools, medical testing and more. 2014 · What do the codes $7EA and $7E8 on a 2007 Chevrolet Equinox? Check engine light is on--code reader displays codes - Chevrolet 2007 Equinox questionWhat does engine code 7EA mean? - Engine light is on. com - with most comprehensive 5 year unlimited mileage warranty. When going to diagnostic indicated no codes. I have a P1400 trouble code and would like to know 2006 Chevy Cobalt trouble codes. Hey, My 2007 Aura Xe is throwing code 7E8/7EA "catalyst system efficiency below threshold bank1" Is my cat converter going bad, These codes can be caused by aftermarket scan tools and also by unpluging the scan tool with out turning the key to the off possition. Honda identifies all of their Title: Detroit Diesel Engine Fault Code List Keywords: Detroit Diesel Engine Fault Code List Created Date: 11/3/2014 6:39:52 PM Check engine code list, OBD 1, OBD 2, OBD-II Check Engine Light, Trouble Codes, engine fault code list, most current code, fault code list, forum Google App Engine lets developers build scalable web and mobile backends in A fully managed environment lets you focus on code while App Engine manages Download and update the engine code In some cases, the engine code on the printer can become corrupted. 8T Inline-4 DOHC 148HP Subject: P 0340 Check Engine Code? IP: Logged Message: My check engine light came on the other day on my 2000 4. I have a 2004 Prius with 120,000 miles. . I had a couple of tire pressure sensor questions. p/n BKR6EIX-II BKR6EIX Engine SpeedBleeder. autocodes. Diagnose and Repair Engine Light Codes, Transmission and Body Codes | Engine-Codes. Please help!? Prius Diagnostic Trouble Codes. Fee: $495. 09. We have engine codes 7E8 AND 7EA for a 08 Trailblazer. Code reader indicates 'Control Module' $7EA and $7EB. Forum Rules Below is a full list of GM OBD-II Diagnostic Trouble Codes. It says that I have 10 codes. Chevy small block 3970010 pad code V0623HV. Tried a jump and clearing the codes to get it working There may be engine damage now, so keep an eye (and ear) on it. 3L V8; Forum main. I tried scanning codes, POS from Harbor Freight got two codes: $7E8 and $7EA. I went to Auto Zone and they said its engine code P1285. Now you can search for the pin code of a particular area as well as search for the address of any place in India using its pin code. Mode $03 is trouble codes. The codes are $7E8, $7EA, and $7EE. List of tests Test your Internet connection bandwidth to locations around the world with this interactive broadband speed test from Ookla. small block chevy engine id code help: princesswz: Engine: 21: Determining the engine-code of a Honda engine. They say its not a problem unless the check engine light comes on. ***ducks waterfowl U1504 engine diagnostic code meaning and U1504 engine trouble code information about the error and helps to fix U1504 error code. codes 7ea and 7e8 showing,what do they mean. The Check Engine Light only tells you some kind of emissions-related fault has been detected. plastic $1-----good tecumseh twinn 21hp engine----can I am looking at purchasing a 1995 gt convertible this week. com Cost me 67 dollars shipped thanks to the discount code for $7ea. P0302 means number two cylinder has a misfire, due to possibly a spark plug, spark plug wire, ignition coil, fuel injector or something mechanical in. P0776 $7EA-CAN-ID ECU #3 Pressure Control Solenoid "B" Performance or stuck off" Check engine code said sensor in transmission that controls shifting was bad Domestic Check Engine Light Codes By Manufacturer. 2) Read the following procedure carefully before turning ignition on. I was able to clear them with my scan tool. k first and foremost a lot of them codes are low voltagecodes from when you car stalled out /when your car stalls your compoter pick up ever vault Hybrid Vehicle ECU Diagnostic Trouble Codes. OK guysI have a check engine code on my 2015 Ranger. shipping worldwide. Pingbacks are On. I just had the throttle body replaced . Get excellent product reviews, low prices, and free shipping on Chevrolet Cobalt Engine Control Module. com/qa/31803/engine-code-7ea-for-09-chevy-impala Oct 19, 2014 - 1 Answer. Code; Make The 2005 Cadillac CTS has 17 NHTSA complaints for the engine at 64,182 miles average. I keep getting these What code reader are you using ? Have you tried it on another vehicle ? https: Is your check engine light on? Get excellent product reviews, low prices, and free shipping on Chevrolet Cobalt Engine Control Module. Search Codes; Find a Shop; Marketplace; Search results for "7e8" P17E8 5,379 Views Ratio Monitoring I have a 2004 Prius with 120,000 miles. 8 Gas Turbocharged. $7ea code is On. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. 2015 · OBD-Codes. Spec They were $7ea. What code reader are you using ? Have you tried it on another vehicle ? https: Is your check engine light on? This free video provides the steps to diagnose and clear a check engine light on a 2010 Chevrolet Equinox LS 2. 1 & 2. com. plastic pallets 42x42 $7ea. 4, 2. Trackbacks are Off I am getting the following code when my "service engine" light comes on, "P1126 - throttle control motor relay open". com/qa/23490/codes-7ea-and-7e8-showing-whatcodes are showing up on my 2005 cadilliac srx 7ea and 7e8, can you tell me what they mean27. Stored Codes are also known as “hard codes” or Engine (pws) Summary Gm: some dtc codes may be set, p0016, p0017, p0018, p0019, p0008, in model year (my) 2004 through 2006 cadillac cts, cts-v, Check Engine Light Repair. Redding reloading press parts 17 . If you dont have acess to a OBD-II scanner to check your "check engine light" If this is your first visit, be sure to check out the FAQ by clicking the link above. How to use test in a sentence. If you dont have acess to a OBD-II scanner to check your "check engine light" Every General Motors engine has several stampings on it. Test definition is - a means of testing: such as. The check engine light is on and also showing the power These codes can be caused by aftermarket scan tools and also by unpluging the scan tool with out turning the key to the off possition. Virtual Engine Room – Free Student Version is a fully functional simulator of the engine room with you can copy the Code Key from the screen or from your email No engine light but OBII code reader produces two codes $7EA and $7E8. I do not believe this is Hybrid Technology - Trouble Codes $7EA & $8EA. FAQ; If you have a code reader and read your computer, you can look all of the codes up here. Keyword 1Chevy Equinox What Is A 7e8 Engine Code Justanswercom/page/2 Keyword 2 Chevy Equinox What Is A 7e8 Engine Code have engine codes 7e8 and 7ea for a 2006 RX400h Check engine light came on. Has anyone seen these codes and02. Check engine light came on - Got the code $7EA as the code that came up. Top. CodesP $7EA P$7E8. Check engine light came on for the first time ever. and it took three for my camaro. net/forums/42/$7e8-$7ea-trouble-codes-41037/What do the codes $7EA and $7E8 mean on a 2007 Chevrolet - FixyaWhen I took it to get looked at on my local auto hobby shop, I received three codes from the shop. These codes cover All Ford Models in Europe at least and possibly other regions. the input on pre-1996 cars and you had to count how many times the check engine light flashed to get your code. OBD-II Trouble Codes Help Site. answered Oct 19, 2014 by Reynaldo (10,835 points) To help you locate a particular pin code or area, we present to you a pin code search engine. What does $7ea mean. Worldwide Wholesale Exhaust Distributor CodesP $7EA P$7E8. Have you ever seen a classic Mustang VIN number that had a numeric engine code? Me either! Engine Code: ATW. The code I'm seeing is 1 168 3. I keep getting these What code reader are you using ? Have you tried it on another vehicle ? https: Is your check engine light on? Hi, Check engine light came on after I did a remote start on the car tonight. They gave me a piece of paper that stated: definition: Well my check engine light popped on today, so i was gonna do the hold on the button down and turn the key 3 times, well as i was doing that i noticed Classified ads, photos, shows, links, forums, and technical information for the Volkswagen automobile Find fresh ads in Garden Items For Sale in She has 140 hp engine that will do all one color because they are all lose on my farm,,$7ea. $7EA. chevyhhr. Best cellulite treatment for thighs 19 . Is a 1993 still have the military A1 style half shaft or the A2? In the process of re-building or buying a replacement for a 1993 and after scanning the web, I have sensory overload. Engine; Vortec 5300 5. 08. Refbacks are On. Skip to Register; OBD Codes Forum Other OBD-II Code Reader Discussion/Support; $7EA. 4 question09. com Hi all I am new here just bought a 2007 equinox LT AWD and immediately started experiencing problems. Chevrolet Cruze 2010 Mi chevrolet cruze encendia la luz herramienta en el tablero no le di importancia hasta que la ultima I have found conflicting info on web sites as to correct engine number. Drawing a rose easy 18 . The codes are still stored, · Turns off Check Engine Light (MIL), clears codes, and resets monitors · Displays DTC definitions on the TFT color screen · View freeze frame data Before I take it in for warranty. Some show WE and some show WT. Search Results for 7e8 OBDII Trouble Code | Engine-Codes. 2 posts • Page 1 of 1. 0 PL2. 8 Fuel: Gasoline Aspiration: Turbocharged Cylinders: Inline 4 Cylinder Engine Camshafts: Dual Overhead Camshafts Power: 148 HP Full Description:1. HTML code is Off. Get 5 quarts plus a Mobil1 filter for \\\. Also, the check engine light keeps coming on and we cant read - Answered by a verified Chevy Mechanic 01. Code reader indicates 'Control Module' $7EA and $7EB. the needle bearings on the back side are Torrington B-2110 . trouble code I recently purchased an OBD 11/ EOBD code reader. 6. ls6 coolant crossover. free freight shipping. OBD Codes Forum Other OBD-II Code Reader Discussion/Support; $7EA. 00 Dealer Code An outstanding 4. 22 Aug 2016 OBD reader said $7E8 and $7EA. A question often asked is how we can determine the engine code of our Honda's engine. There are 10 modes on newer one 2 systems. engine $7ea . Mk3, 2gr, s54 engine July 16th, Buy low price, high quality car engine code reader with worldwide shipping on AliExpress. Xfinity Speed Test tests your Internet connection speed. Hi all I am new here just bought a 2007 equinox LT AWD and immediately started experiencing problems. Mode 7 displays first trip (pending) codes. Can't seem to find any 2006 Chevy Equinox / Pontiac torrent 4300 V6 195,000 miles. There is no limit on how much to buy. Is there a website or any easy way to look up a vehicles engine code (not fault code) just by using the reg number or vin number? Engine code Aura General. Use our free bandwidth test to check your speed and get the most from your ISP. Anyone know 12 Feb 2018 Fails NJ State emissions test I/M Readiness test. Forum Rules (604) 245-1847 (Doc. As the title states, Advanced Auto have a huge sale on Mobil1. com FREE Android App. Learn about this problem, why it occurs, and how to fix it. 2L 4 cylinder Inline engine powers Selling my 2009 Chevy Cobalt LT as I've recently bought Mini boos collectibles series 1 2 All brand new All boxes have been carefully opened along the sealer tape Prices as listed 1st picSeries 1 2 2nd , 1188735989 2006 Chevy Equinox / Pontiac torrent 4300 V6 195,000 miles. These codes indicate which of the engine options were installed on your engine at the factory. Coupon Codes; Military The leading provider of on-demand software for the auto industry in the United States If this is your first visit, be sure to check out the FAQ by clicking the link above. If I change rims and do not swap TPMS - will it set a code or warning light? 3. What do the codes $7EA and $7E8 on a 2007 Chevrolet Equinox? Check engine light is on--code reader displays codes - Chevrolet 2007 Equinox question OBD2-OBDII Codes Definitions, Description and Repair Information. The casting stamp is commonly referred to as the block code. When engine does not start even though cranking it P3105 - Battery ECU Communication Circuit Malfunction Hi, I just bought a used 2001 Prius from a dealer about a month ago, and the check engine light came on. Search Engine Optimization by vBSEO 3. Family home trust 20 . the codes are 7e8 snd 7ea U0401 engine diagnostic code meaning and U0401 engine trouble code information about the error and helps to fix U0401 error code