John deere code 1569.31

SPN 3719/FMI 15 This diagnostic condition is a silent code that logs when the DPF Regeneration Lamp is flashing in regen Zone 3. NOTE: This code is informational only and used by service to help understand which dash lights illuminated during normal service. A stationary regen is required if the fault code is active.

Posted 10/7/2017 06:04 (#6292710) Subject: john deere 9870 fuel codes. nesd. I had ecu codes 94.17,1569.31 and finally 157.01 come on. seems to all be about fuel pressure. combine is definity loosing power so not just a bad sensor. fuel filters were changed 20 hours ago. low pressure pump on top of the filters sounds like its working fine. any ...Deere D323 derating issue. I have a deere 323D that keeps derating. I have changed both fuel filters but after 20 hrs i starts to derate again. It codes 94.18 and 1569.31. Any one else had this problem. Tank is clean don't know what else to do. If your fuel filter change fixes the issue, and you are using an aux fuel tank to fill the machine. I ...If you’re in the market for a new John Deere tractor or are looking to sell one that you have on your farm, you’ll want the most relevant pricing information that you can find. Rea...May 18, 2020. #1. This started with 3673.7 exhaust throttle not responding code came on the went off machine a little under power. now with key on code 3673.31 exhaust throttle invalid position. My question not working on JD that much is should I just free up the assumed stuck throttle valve and send it on its way or should I also replace the ...SPN 1569 FMI 31 - SCR Tamperproof Warning & Protection System Inducement Severe Fault Overview Fault sets when any aftertreatment sensor or actuator is Open, disconnected, or bad DEF quality is detected for at least one hour. After one hour (level 2) engine will be de-rated by 25%. After 4 hours (level 3 and 4) engine will be de …

John Deere Fault Codes List. ECU 000097.03- Water in fuel (high) ECU 000097.04- Water in fuel (low) ECU 000097.16- Water in fuel. ECU 000100.01- Low oil pressure. ECU 000100.03- Oil pressure (high) ECU 000100.04- Oil pressure voltage low. ECU 000100.18- Oil pressure. ECU 000100.31- Engine oil pressure.Sep 20, 2020 · Posted 9/20/2020 21:51 (#8506914) Subject: JD 9770 codes ECU 412.16 & 1569.31. 9770 w/35 ft bean head. 412.16 Exhaust temp not within specification. 1569.31 EGR code. Had issues last year...mostly in soybean, 8 row corn head doesn't work machine as much. Noting but alarms and warnings today. We have replaced EGR valve and had tech cal new one.I am having a problem with my john deere 5085e. It keeps throwing the code 94.18 which is low fuel pressure signal. I have changed both fuel filters, the fuel transfer pump, checked the fuel sender in the tank, and drained the fuel tank. I am still getting the same code.I have a john deere 339d and it's throwing throwing ecu codes 100.03, 94.18 , 1569.31 and HCU 1594.02 and the engine is derating and help would be awesome … read more Field TechLocation. Alabama. Oct 5, 2023. #1. Got a 210G with 641-13 , 641-07, 2795-07 and 1569-31 witch is a derate code. I know these all pertain to the turbo and VGT. I think the turbo is sticking. The VGT moves free and moves three times when engine starts. what I don't know is how far should it move. any advice on this. 1FF210GXEF523834.Immediate engine power derate.This fault code is for information only, and indicates that an engine power derate has been implemented in order to make sure that the critical fault codes that are presently active in the ECM are addressed as quickly as possible. Conditions For Clearing The Fault Code.Sep 20, 2020 · 1569.31 is a derate code preceded by your EGR code. 2791.07 means EGR valve did not reach the expected position. The ECM commands EGR into a certain position and when the egr actuator doesn`t respond or doesn`t adjust the valve to the desired position it will throw this code and derate the engine.Dear Momma, I see you, driving down the road with tears in your eyes. I see the deer caught in headlights look as your hands firmly grip the wheel. You... Edit Your Post Published ...

John Deere. JOHN DEERE ERROR CODES; John Deere 1 Series; John Deere 3R series; John Deere 4M Series; John Deere 4R Series; John Deere 5C Series; John Deere 5D Series; John Deere 5E Series; John Deere 5015 Series; John Deere 6010 Series; John Deere 6020 Series; John Deere 6D Series; John Deere 6J Series; John …TOW/TOAD. 2001 Jeep Wrangler. Fulltimer. No. Jun 29, 2022. #2 of 11. 1569 is engine torque derate so there is something else going on. Check for other codes to find out why - derate is a result of the system “protecting” the engine. More commonly its because of an emissions problem and there is no danger to the engine or anything else ...When it comes to maintaining and repairing your John Deere tractor, you want to make sure you’re using genuine John Deere parts. Not only are genuine parts designed specifically fo...Tractor runs hot - over 180F - seems to burn a lot of fuel, and throws a couple codes: ECU .001 1569.31 engine power limited. ECU .001 2795.07 turbocharger position actuator fault, engine power limited. Spent $1400 having the dealer put on a new turbo position actuator, and it did not fix the problem. Now they say it needs a new turbo …Engine Control Unit (ECU) Diagnostic Trouble Codes: Diagnostic Trouble Code: Display: Solution: ECU 94.3: Engine System: Fuel pressure sensor voltage high. ECU 94.4: Engine System: Fuel pressure sensor voltage low. ECU 94.17: Engine System: Fuel pressure low. ECU 97.3: Engine System: Water separator sensor voltage high. ECU 97.4: Engine System ...I have a john deere 339d and it's throwing throwing ecu codes 100.03, 94.18 , 1569.31 and HCU 1594.02 and the engine is derating and help would be awesome … read more Field Tech

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I have a john deere 339d and it's throwing throwing ecu codes 100.03, ... i have john deere 6140m with code 735.05 what does that mean … read more. Daniel Wilson. Associate Degree. 1,399 satisfied customers. I have a JD 5045E and am having the following codes 157.01, I have a JD 5045E and am having the following codes 157.01, …Dec 20, 2021. #1. The warning light and buzzer have been coming on with the ECU code 97.16. water trap full. This happened to another operator. I changed the filter/ separator because I don't know it's age. I had drained a lot of water out of old filter, had cleared code and it ran okay for a bit , 20 minutes before light. Coming on.Since then I have put some 60 hours on it, and now I have ECU codes 1209.07 - exhaust manifold pressure sensor fault/mismatch - and 1569.31 - engine power limited - due to the previous code. Those are the only codes. The tractor was not maintained very well, so I have completed most of the requirements - engine oil & filter change, fuel tank ...I have a john deere 339d and it's throwing throwing ecu codes 100.03, 94.18 , 1569.31 and HCU 1594.02 and the engine is derating and help would be awesome … read more Field Tech

Posted 6/3/2015 08:58 (#4606345 - in reply to #4606237) Subject: RE: JD 7930 issues. Appomattox/Fredericksburg, VA. ECU 2795.07 VGT actuator not reaching expected position. Because of this code being active it derates the engine power to 20%. Didn't find ECU 641.05 but 641.04 is VGT actuator supply voltage out of range low.John Deere. JOHN DEERE ERROR CODES; John Deere 1 Series; John Deere 3R series; John Deere 4M Series; John Deere 4R Series; John Deere 5C Series; John Deere 5D Series; John Deere 5E Series; John Deere 5015 Series; John Deere 6010 Series; John Deere 6020 Series; John Deere 6D Series; John Deere 6J Series; John …Deere 160D codes. Thread starter Canadian_digger; Start date Apr 1, 2016; Canadian_digger Senior Member. Joined Oct 31, 2007 Messages 811 Location Ontario. Apr 1, 2016 #1 I had two codes come on the last time I used my 160. Anyone able to tell me what they mean? 97-16 and 1569-31 Thanks . B. br1474 Well-Known Member. Joined …Fault code sets when any aftertreatment sensor or actuator is open or disconnected for at least 1 hour. After 1 hour (level 2), the engine will be de-rated by 25%. After 5 hours (level 3 and 4), the engine will be de-rated by 40%, and the electronic control module (ECM) will illuminate the red stop lamp (RSL) and turn on the warning buzzer ...The best way to find wiring diagrams for John Deere products is to visit the technical information bookstore at the John Deere website. The two search options provided at the site ...President Joe Biden just signed a sweeping executive order that will create right-to-repair rules for cellphone companies, as well as big ag companies like John Deere. Who would be...My Deere 7530 codes is: 641.04 and 2795.07. JD 7530 Premium+. My John Deere 7530 codes is: 641.04 and 2795.07. Mechanic's Assistant: What is the complete model and serial number of your machine? JD 7530 Premium+ year 2009, type MW2,identification no:*L07530R598999*.Location. Paramus nj. Jun 18, 2021. #1. Have a john deere 160g was rolled off trailer last year, did some repairs to get it going but in derate, cant get filter to clean even in regen red stop engine for exhaust restriction. I have 7 codes in ecm wondering if anyone has break down for them. 3251-07. 189-31. 641-07.Technician: Mike Mcmillan. OK on your faults the 1569 is simply an inducement fault code which means the truck is in derate. The other faults that are present are for the def line heaters. What is almost always found with this issue is a def harness problem. There is a pdm near the def pump that the wires usually rub inside the panel or the ...

Apr 19, 2010 · Posted 4/19/2010 17:25 (#1167572) Subject: John Deere 8330 turbo problem. Arkansas. Our 8330 is throwing the following codes: ECU 2795.07 & ECU 1569.31 Dealer has already replaced the actuator that connects to the turbo & it ran fine for a week. Started throwing the codes again today. Anybody know what could be causing this as our service ...

Code 1569.31 (Vehicle System): In this code, ’15’ highlights the vehicle system, ’69’ denotes the Vehicle Information Control Unit, and ’31’ signifies a condition not met. Code 523693.31 (Control System): ’52’ demarcates the control system, ‘369’ is referring to the engine control unit, and ’31’ denotes condition not met.2016 John Deere 5075e no throttle response. Having problems, tractor will start, has not throttle response, idle is real low and will shut down, I have two lights on the dash on, triangle light flashing and the engine information symbol, it want run long enough or idle high enough to regen. the fuel filter in the tank and on the tractor has ...SPN Code. SPN Name : FMI Code. FMI Name. 27. EGR Valve Position Signal : 0. Extremely High. 28. Digital Throttle Signal : 1. Extremely Low. 29. Secondary Analog ...If you have a good 5 V reference and a good ground (Deere calls it a return) at the sensor and the signal wire is good back to the controller then you most likely have a bad sensor. A DPF recovery followed by a service regen would have to be successfully completed to clear the 3719 code. Last edited: Oct 28, 2019. P. partsandservice Senior …Occupation. Equipment Mechanic. Jul 14, 2019. #2. Press and hold the top right button , then turn the key on while holding button until default screen appears. Release the button then use the menu button (the second button from the right on the bottom row) to access diagnostics. That gets you into the service mode.I have a john deere 339d and it's throwing throwing ecu codes 100.03, 94.18, 1569.31 and HCU 1594.02 and the engine is - Answered by a verified MechanicTO319DA183195. Fuel Pressure. 31 psi @ idle. 27 psi @ 2800 no load. Codes. 237.13. 1569.31. In the process of taking to JD to fix 237.13 computer problem. …The John Deere 318D, 320D (EH Controls) SkidSteer Loader Technical manuals are divided in two parts: Repair and Operation and Tests. -Repair sections tell how to repair the components. -Operation and tests sections help you identify the majority of routine failures quickly. Choosing the Correct Supporting Manuals.

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The codes coming up are: Ecu 1180.16 Ecu 1569.31 Ecu 2791.13 Ecu 2791.02 Ecu 2791.03 Ecu 2791.07 Thanks: Jari: Posted 5/5/2016 23:01 (#5285125 - in reply to #5284683) Subject: RE: 7430 premium EGR problems: The EGR actuator is probably malfunctioning causing the 2791 codes and as a result you get derate code 1569.31. …Diagnosing and Repairing John Deere R4038 Sprayer with a 2975.07 Turbo Vein Position Code. Larry the Tractor Guy gives you tips and tricks to fix your John D...Code I pulled up is SPN1569 FMI31 which seems to be indication that the engine is in an engine protect mode but does not say why. Nothing obvious wrong. All …Description. A00 174 04 2 Engine Fuel Temperature Sensor voltage is out of range low. The device or wiring is faulty. Injector pump may be damaged because hot fuel loses its lubrication properties. (9640, 9560, 9660, 9580, 9680) A00 174 15 2 Engine fuel temperature above normal range (greater than 65°C / 149°F).Code 1569.31 (Vehicle System): In this code, ’15’ highlights the vehicle system, ’69’ denotes the Vehicle Information Control Unit, and ’31’ signifies a condition not met. Code …What to do when you experience loss of power and see ECE code 157.01, 1569.31 & ICC code 2818.31 on you John Deere 5 Series Utility Tractor. These are fuel r...The same code (ICC A) just popped up on my tractor dashboard as well. I have a 2021 JD 4044M with less than 50 hours. ... A forum community dedicated to John Deere tractor owners and enthusiasts. Come join the discussion about towing, PTO’s, reviews, attachments, modifications, troubleshooting, maintenance, and more!Subject to approved installment credit with John Deere Financial. Down payment may be required. Average down payment is 10%. $13.89 per month for every $1,000 financed. 0% APR for 60 months available on 1, 2, 3D, and 3E Series Compact Tractors. 0% for 72 or 84 months extended terms based on dealer participation.John Deere ECU fault codes / John Deere ECU diagnostic trouble codes. NOTE:This page only indicates the meaning of the fault codes. For complete troubleshooting information, see the technical manuals. ECU 000027.03 ( ECU 27.03)— EGR Valve Position Signal Out of Range High This indicates a short to 12 volts.Flat Threaded Nested. cornfarmer77. Posted 4/14/2019 08:23 (#7438420 - in reply to #7438300) Subject: RE: 7930 John Deere EGR Codes. ECU-001 2791.02 (EGR) ECU-001 1569.31 (derate condition exists) Not sure …A forum thread where users discuss the possible causes and solutions for the JD 9770 codes ECU 412.16 and 1569.31, which indicate a fault in the engine management system. Some users suggest checking the air filter, others share their experiences with the dealer or the tech. ….

Hello i have a John Deere 6190R tractor showing code 641.07 at every start up. Code is active and is saying active exhaust filter cleaning unavailable. Engine is a 6 cylinder.The engine power derate diagnostic trouble code informs the operator that the ECU has detected a condition such. as high coolant temperature and is derating the engine by limiting the maximum amount of fuel available to the. engine. This code will only set as a result of another DTC setting. Alarm Level.Hi. 1569.31 is a derate code preceded by your EGR code. 2791.07 means EGR valve did not reach the expected position. The ECM commands EGR into a certain position and when the egr actuator doesn't respond or doesn't adjust the valve to the desired position it will throw this code and derate the engine.Jan 6, 2021 · Deere 94.18 Low fuel pressure code. I keep getting this low fuel pressure code on a 5100E, I have changed both fuel filters when it occurs. Tractor runs fine, it usually occurs when you are running at WOT with a light-medium load, seems to run fine though. My manual for the tractor tells me to reference the CTM for the engine, love how Deere ...Jan 6, 2021 · Deere 94.18 Low fuel pressure code. I keep getting this low fuel pressure code on a 5100E, I have changed both fuel filters when it occurs. Tractor runs fine, it usually occurs when you are running at WOT with a light-medium load, seems to run fine though. My manual for the tractor tells me to reference the CTM for the engine, love how Deere ...EGR 2791.02 Fault and Engine Derate. I have a john deere 9660 combine throwing a 2791.02 egr fault. Operators manual says it is an egr valve sensor voltage mismatch. But the diagnostic manual for this machine says that the fault is that "the egr is unable to achieve its desired position" (different from what the operators manual says about a ...I have a john deere 339d and it's throwing throwing ecu codes 100.03, 94.18 , 1569.31 and HCU 1594.02 and the engine is derating and help would be awesome … read more Field TechThe John Deere dealer is the first line of customer parts service. Throughout the world, there are dealers to serve Agricultural, Construction, Lawn and Grounds Care, and Off-Highway Engine customers. As a company, we are dedicated to keeping our dealers equipped with the necessary products and services to maintain this leadership role. John deere code 1569.31, There are 3 different service manuals for the 650J, so I need the serial number to help. F3X1 is for low charge pressure. This code will make the stop light come on. The other codes are; F382 - Right speed sensor open F383 - Right speed sensor no response F373 - Left speed sensor no response There MAY be a round electrical …, I have a Deere 710K, and I am receiving a code ECU 1569.31. Good morning I have a John Deere 710K, and I am receiving a code ECU 1569.31. Mechanic's Assistant: Hi. Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Equipment Mechanic I'm going to connect you with knows all the tricks and shortcuts., CODE REASON EFFECT. Fault Code: 3714. PID: S115. SPN: 1569. FMI: 31. LAMP: Amber. SRT:Engine Protection Torque Derate - Condition Exists. Critical fault codes related to engine operation are active.Immediate engine power derate. Ask Your Own Medium and Heavy Trucks Question., SPN 1569 FMI 31 - SCR Tamperproof Warning & Protection System Inducement Severe Fault Overview Fault sets when any aftertreatment sensor or actuator is Open, disconnected, or bad DEF quality is detected for at least one hour. After one hour (level 2) engine will be de-rated by 25%. After 4 hours (level 3 and 4) engine will be de …, Press and hold button 1 under the parked regeneration icon (A) on TechControl DPF status screen for 5 seconds. NOTE: If cancellation of parked regeneration is necessary, your best option is to depress button 4 under icon (B) on the TechControl DPF status screen. During parked regeneration process, the high exhaust temperature icon with progress ..., Aug 31, 2017 · To view and/or clear diagnostic trouble codes for any given control unit, do the following: 1. Use the right turn signal switch to scroll to the desired control unit. 2. Press and release the roll mode switch to enter the diagnostic addresses for that desired control unit. 3., Location. Alabama. Oct 5, 2023. #1. Got a 210G with 641-13 , 641-07, 2795-07 and 1569-31 witch is a derate code. I know these all pertain to the turbo and VGT. I think the turbo is sticking. The VGT moves free and moves three times when engine starts. what I don't know is how far should it move. any advice on this. 1FF210GXEF523834., Sep 23, 2017 · I fixed the lights and codes. Just for any searcher's information. The 1569.31, 98.17, and 98.18 were fixed by changing the fuel filters. I have a 'new' old fuel oil tank which I am using as my diesel tank, and I suspect even though I have filters on the tank itself, it let more gunk through than I had recognized., Apr 28, 2023 · I have a john deere that is running a gen set Ser# ***** 4045 r017420 4045hfg92 has these 2 codes spn 1569 fmi 31 and spn 3719 fmi 16 , also has the following messages eic shutdown unack , eic warning … read more, 5100E giving ECU 101.00 and 101.16. These codes are the crankcase pressure high codes and resolution is to replace the Crankcase blowby filter. I have replaced the filter and still get the code. The code starts to activate between 5 and 10 minutes after starting. Engine speed doesn't seem to matter., If code returns, have your John Deere dealer repair as soon as possible. ECU 001569.31. Fuel Power Derated. One of the Derate Conditions Exists on Engine. Have John Deere dealer repair at earliest convenience. 001076.13 — Pump Current Decay Time Invalid. DTC 001076.13 will set if: • ECU detects high resistance in the pump solenoid. If DTC …, John Deere PTR fault codes / John Deere PTR diagnostic trouble codes. NOTE:This page only indicates the meaning of the fault codes. For complete troubleshooting information, see the technical manuals. PTR 000084.07 (PTR 84.07)- Excessive Wheel Speed Detected During Calibration, A forum thread where users discuss the possible causes and solutions for the JD 9770 codes ECU 412.16 and 1569.31, which indicate a fault in the engine …, JOHN DEERE Tractor Fault Codes DTC. John-Deere-Fault-Codes-DTC. SIC 000629.12 – Control unit, internal fault SIC 000639.13 – 29-bit CAN bus, high error rate, Jun 7, 2023 · 5075e code ecu 1883.00 1347.01 1569.31, ptrpta 522456.31, Deere 5075e, has 300 hours - Answered by a verified Mechanic, I have a 2016 kenworth T680 with a cummins ISX and im seeing the following fault codes: Fault code FMI Time SPN-88118 17 8:25 SPN-151117 19 8:25 SPN-1569 31 8:27 could you tell me what these are and h … read more, May 16, 2016 · Posted 5/16/2016 14:24 (#5304824 - in reply to #5304742) Subject: RE: Trouble with John Deere EGR valve system. Codes are all ECU's. 2659.15 , 1569.31. There is a message that also comes up that says EGR valve not in correct position (didn't catch code on it), Apr 6, 2013 · Three codes keep popping up on our tractor and it is restricting the power to the engine. The codes or 641.04, 2795.07, and 1569.31. I had this problem earlier in the year and the dealer came out and changed an electronic part. Which one I do not know as I was not there and the problem was fixed for a while., Aug 24, 2021 · Since then I have put some 60 hours on it, and now I have ECU codes 1209.07 - exhaust manifold pressure sensor fault/mismatch - and 1569.31 - engine power limited - due to the previous code. Those are the only codes. The tractor was not maintained very well, so I have completed most of the requirements - engine oil & filter change, fuel tank ..., JD 410K Engine Derated code 1569.31. Backhoe will run for about 30 seconds then shuts down. Also code 94.18 is shown - Answered by a verified Mechanic, John Deere equipment is equipped with Heavy-Duty On-Board Diagnostic (OBD) systems that utilize SPN FMI codes to identify and diagnose issues that may arise. The SPN code helps pinpoint the system or component causing the problem, and the FMI code indicates the type and severity of the fault. A value of 3 for an FMI indicates a voltage above ..., Keep getting code ECU 157.01 on a JD 5115M, *****, Yes myself. I had the fuel tank out found strainer in the - Answered by a verified Mechanic. By chatting ... I have a 2005 John Deere 330c bought at auction. I know the machine was running, but now it won't start. There must be some type of fuel shut off somewhere., John Deere equipment is equipped with Heavy-Duty On-Board Diagnostic (OBD) systems that utilize SPN FMI codes to identify and diagnose issues that may arise. The SPN code helps pinpoint the system or component causing the problem, and the FMI code indicates the type and severity of the fault. A value of 3 for an FMI indicates a voltage above ..., Since then I have put some 60 hours on it, and now I have ECU codes 1209.07 - exhaust manifold pressure sensor fault/mismatch - and 1569.31 - engine power limited - due to the previous code. Those are the only codes. The tractor was not maintained very well, so I have completed most of the requirements - engine oil & filter change, fuel tank ..., Dan : my name is***** will try to help. SPN 970 – FMI 31 – Auxiliary Engine. Shutdown Switch Active. Causes: Low oil pressure, Low coolant level, Low oil level. Check and top off your fluid levels and see if this code goes away or look faulty sensor or harness. Dan : SPN 110 3 Engine Coolant Temperature Sensor voltage is out of range high ..., Jun 7, 2016 · I have a 2015 5100E I bought in December. 2 months ago the check engine light and the red exclamation point lights started flashing when it hit 69 hrs. I couldn't cycle through the console display to get the code. The dealer picked it up. A month later they told me it was the wiring going to the bottom of the water separator., 5100E giving ECU 101.00 and 101.16. These codes are the crankcase pressure high codes and resolution is to replace the Crankcase blowby filter. I have replaced the filter and still get the code. The code starts to activate between 5 and 10 minutes after starting. Engine speed doesn't seem to matter., 24. Location. Oklahoma. Occupation. Field mechanic. Jun 15, 2021. #1. When cold and you put it in gear it does circles to the left track side in forwards or reverse. Plus if you run it over 3/4 throttle it will die and not restart until you idle down and it will run all day at 3/4 no problem no codes., hello, in the tractor john deere 7430 premium receive the following ECU codes : 641.12 and 1180.00 and 1569.31 . you have any idea for the solution ? … read more Kevin, Apr 28, 2023 · I have a john deere that is running a gen set Ser# ***** 4045 r017420 4045hfg92 has these 2 codes spn 1569 fmi 31 and spn 3719 fmi 16 , also has the following messages eic shutdown unack , eic warning … read more, I have a Deere 710K, and I am receiving a code ECU 1569.31. Good morning I have a John Deere 710K, and I am receiving a code ECU 1569.31. Mechanic's …, Diagnostic code. My John deere 5045e gave me 2 diagnostic codes as soon as I engaged the PTO for the bush hog. They read as follows: ICC PA 2818.31. E1C PA 2000.09. I've googled these codes and cant find them anywhere. Can anyone help? The nearest JD place is a long ways away. Anyways, both DTCs are not active right now., Started the excavator back up, and the 4077-03 code is gone, however two of the previous codes came back. I now have codes 1569-31 and 1209-07. We did have the exhaust off on the shelf for a month. Any idea why it might have come back. I will check tomorrow for connection problems and put di-electric grease on the connections.