P21dd error code 2016 duramax. The dealer replaced it.

P21dd error code 2016 duramax Any ideas? Apr 12, 2021 · Hello i have a 2013 gmc 2500 hd duramax. Easy repair , fast diagnosis. Cleared codes and still have service message and counting Down to 65 mph speed limit. 6l duramax with codes c0131, p128e and p21dd. What Does the Engine Code P21DD Mean? Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "2" in the second position means that this is a ISO/SAE controlled OBD-II (OBD2) DTC. S. Outside of my obscenely low mileage, the only notable event was I drove it half way across the country (Austin, TX -> Coastal Carolina with only 1 fillup in between, woo) and Being an owner of the Duramax engine for a long time, you may have faced different Diagnostic Trouble Codes (DTC). What Does The Code P0670 Mean On Duramax? (How to Fix It) What Does Code P0128 Mean On Duramax? (How to Fix It) What Does Code P0089 Mean on Duramax? On my 2013 Chevy 2500 hd duramax engine light is on and the dtc code is P21DD what does this mean? Mar 17, 2019 · Duramax 6600; Code P24C4; 2016 GMC K3500SRW D/A CC short LTZ Custom tuning in house using EFI Live tuning software! P21DD, bad resistance reading in DEF Feb 4, 2022 · 2016 6. Because of this thread I checked my warranty info online, found I'm still good, and made an appointment at the dealer. This letter was intended to make you aware 2016 GMC Sierra models have a condition which causes an offset in temperature sensor in diesel emissions reduction fluid (DEF Oct 23, 2020 · I have a 2013 Duramax that of course has the stupid DEF, my check engine light came on Monday and Orielly's said the code it was giving was P21DD but there was no explanationdoes anyone know what this means? Nov 12, 2018 · Hate that I'm posting here but: 2015. . Jump to Latest 367 views 2 Feb 10, 2022 · 2015 - Chevrolet Silverado 3500 High Country - Black w/ cocoa interior - Duratracs -Clëk Foonf car seat SOLD - 2015 GMC Denali Duramax 2500 SRW - 2005 - Chevrolet Silverado Duramax 2500HD LT Reductant heater replacement. 61000 miles on 2015 Duramax. I have a 2016 2500HD and last week the DEF tank was replaced and the Reduction Temp sensor was Feb 3, 2021 · 2017 - 2022 Super Duty - My truck has code P21DD? - My name is Nathan, I am hoping to get some insight on what code P21DD means. Try it one time. Mar 26, 2013 · I have a 2012 3500. 6 duramax. Jump to Latest 2016 Chevy 3500hd DRW. At 40,573 miles DTC P2002 came up. exp. Dec 22, 2016 · 2009 GMC Sierra 2500HD SLE CC/SB 4x4 LMM EFI Live, Edge Insight CTS, Flo~Pro 4" DP back exhaust w/ muffler & stock trumpet tip, Alum. 50 for the geniune GM part #12647372 and I had it changed in under 30 minutes. Sep 7, 2023 · The truck is a 2013 GMC Sierra 3500hd with a 6. Models: 2016 Chevrolet Express 2016 Chevrolet Silverado HD 2016 GMC Savana 2016 Sierra HD To: All General Motors Dealers General Motors is releasing Special Coverage N192210260 today. Feb 9, 2023 · I have a 2016 Sierra HD 2500 Z 71 Duramax with 30,000 miles. Pioneer AVIC-8200NEX Navigation Radio, Tailgate camera view moved from mirror to Navigation display, Pace Edwards Electric Bedlocker Tonneau Cover, with a 37 gallon Transfer Flow tank with Trax2 display, under it's canister, Chrome wheel opening moldings, Mirror mod, with forward led How I replace the DEF reservoir on Duramax DieselGM part number 84412924As an Amazon Associate I earn from qualifying purchases. Mechanic's Assistant: Have you checked the coolant level? Has there been any leaking from the hoses? May 1, 2020 · i have a 2014 duramax with 31,000 miles on it. P21DD dtcv code on a 2016 2500 HD GMC Truck. Chevy 2500 4X4, Just clearing the code with my code Q&A: How to Clear P01F0 Code on 2015 Duramax GMC? Jan 1, 2016 · I've had Duramax's in a 2007. 3. As discussed already, each diesel engine needs two NOx sensors to monitor the oxygen and nitrogen levels in the air intake system (upstream) and exhaust (downstream). Oct 14, 2017 · Easy job, took a few hours. P21dd P11cb P140c 2013 chev. 2014 Chevy Silverado Duramax Nov 13, 2018 · Scan showed trouble code P21DD. I then cleared the codes with OBDII scanner. Jun 22, 2022 · If one or more of the following DTCs – P20C1, P21DD, P221C, P10D9, P10F3, P143C, P20B9, and/or P221E – are set in the ECM on 2020-2021 Silverado 1500, Silverado 2500HD/3500HD, Sierra 1500, Sierra 2500HD/3500HD; and 2021 Tahoe, Suburban, Yukon and Escalade models equipped with the 6. M. By going through the internet and typing in DTC codes for your vehicle you'd be surprised what pops up. 5 LML 47000 miles Codes P21DD and P20B9, DEF heater tank failure got the 99 miles till 65 mph limit in GMC service department now, waiting to hear from service Dec 18, 2016 · Mine was due to faulty thermostat - dash boards normal reading was 210f with code was 180f - changed thermostats, cleared code and temps is again 210f on dash- no more code 2013 Chevy 2500HD LTZ 4wd 102k miles Stock as far as i know. We have a 2005 silverado duramax 2500 Is there a cabin air filter in it and if so where is it so we can change the Super Mechanic 29 yrs. It is important to note that attempting to repair OBD-II Code P21DD without the proper training and equipment can be dangerous and may void the vehicle’s warranty. Only 11,000 miles on the car. BONE STOCK. I reset it per dealer instructions. the code showed up , p20b9 on my way to work, stating 99 miles till speed limited to 65 mph, then, 70 miles till speed limited to 55 mph, according to the #'s in 40 miles i will be limited to 55 mph. When I took it in yesterday the service rep said that was a common problem. You may want to do the testing to verify the heater has in fact failed or if its a connection concern. However, this does not mean that there is a one-size-fits-all solution to identify its underlying problem. TIA 2016 GMC Denali HD - Iridium Metallic Nov 23, 2021 · Service message came on along with CEL. OBD II P204C; OBD-II Code Powertrain Control Module (PCM) failure is defined as a Reductant Pressure Sensor Circuit Low. 6L Turbo Diesel w/ Allison 6 Speed Trans, Il6-I06 Audio System 8" Diagonal Color Touch W/Navigation & Intellilink, U42 Rear Entertainment System, Z82 Trailering Equipment Pkg, Z85 Heavy Duty Suspension, UY2 Camper/5th Wheel Trailer Wiring Provisions, Y65 Driver Alert Package Jul 4, 2018 · Duramax Fifth Generation: 2011-2016 (LML) Scan for codes retrieved one code-p21dd. Oct 15, 2017 · Duramax Fifth Generation: 2011-2016 (LML) Started out with Code P21DD, which came on as a permanent code that I couldn't erase coupled with one that I could erase We would like to show you a description here but the site won’t allow us. 6L Dmax LML w/Allison. 5x20 Nitto Ridge Grapplers, Amp Research Extreme Running Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. New down pipe and 5 inch exhaust, new up pipe, cold air intake, new garret stage 1 turbo, Airdog 165 lift pump, EGR delete and EFI Live. The common cause for the code P21DD is as you suspect due to a failing Reductant Heater 1 and you can try clearing the code but if in fact the heater has failed it will come back and it will not delay limp mode. Apr 18, 2019 · All started with P21DD code on 2013 duramax Jump to Latest 3. Replace SL-N-injector and cleared codes. Deleted, EFI live & Vmac compressor, Fab Fours front bumper with16. Service department diagnosis: soot accumulation of 16%, no exhaust or induction system leaks, verified DPF was not clogged. On my 2013 Chevy 2500 hd duramax engine light is on and the dtc code is P21DD what does this mean? May 15, 2017 · 6. DPF deleted, new exhaust, EGR delete, cold air intake, Airdog 165 lift pump and EZ Link programmer. 5, 2009, 2011, 2012, 2013, 2015. Mar 26, 2013 · 2014 Chevy Cruze Clean Turbo Diesel (Took Delivery 8/15/13): Black Granite w/ Jet Black Interior, 2LT Convenience Package, Enhanced Safety Package, Sunroof, Navigation, Fog Lights, 35% Window Tint a nd of Course, a Few Other Goodies. 6 LML Duramax Diesel - F01C600337. I've changed them and my temps are still low. That being the case, I called a dealership in southern Tennessee and made an appointment to confirm the issue. Looks like the DEF system is still under an extended warranty, so time to go to the dealer, hopefully get the stuff replaced. 6 diesel. and received the Def system Jan 3, 2021 · Duramax Fifth Generation: 2011-2016 (LML) Dreaded code p21dd. 6L: Code P01F0: coolant temp dropped below diagnostic monitoring temperature. DTC P02C1, P21DD, P221C, P10D9, P10F3, P143C, P20B9, and/or P221E Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Cadillac Escalade Models 2021 2021 LM2 Chevrolet Silverado 1500 2020 LM2 Silverado 2500HD/3500HD 2020 L5P Suburban 2021 LM2 GMC Sierra 1500 2020 LM2 Sierra 2 500HD/3500HD 2020 L5P Yukon Models 2021 LM2 Involved Jul 14, 2023 · 2011-2016 (Non Powertrain) I replaced the DEF heater per this code, and the P21DD code went away. Today I changed the coolant temp sensor, still low. 6 duramax 62000 miles 2016 silverado ltz 2500 6. Inspected engine air filter and found filter was restricted and excessively dirty. GMC Mechanic: Mike S. P11cb code. Tech says some bullshit about a bad Jan 27, 2022 · 2020 Silverado 2500 Duramax. This is the second time this light came on and code came up. Features Dec 13, 2016 · Duramax Fifth Generation: 2011-2016 (LML) 2014 DEF Problems. 2013 3500 6. Mar 3, 2016 · The dreaded 'P21DD' (reductant heater open circuit) reared it's ugly head last Saturday. 6L Turbo Diesel, Thanks for watching :)This video is for entertainment Oct 25, 2022 · 2015 LML battery dying in just a few hours. Apr 10, 2022 · The dealer pulled a code of P21DD reductant heater current low. 9" pulley, Header/Downpipe/Exhaust, FE5 Struts/Shocks/Control Arms/Front Swaybar, SSC Springs, Powell Hardcore Rear Swaybar, MSR 045 18" wheels w/ Direzza ZIIs, G85 Recaros + much more Oct 29, 2011 · 1st Generation Chevrolet Cruze. ” It mostly happens due to a defect in the reduction tank heater used to heat the DEF. Called dealer and checked online for possibilities. Apr 13, 2021 · 2013 Duramax. The average labor cost for a single hour is usually about 75 to 150 USD. Hope this isn't a prelude of things to come. 5 winch Jul 13, 2022 · Reductant tank heater 1 is a common failure causing vehicle to enter limp mode, requiring DEF tank reservoir replacement. Dec 30, 2013 · I cant find anything on the P21DD, ive never seen that code at all. The repairs will be made at no charge to - 2020 - CRC - 10/26/20 Page 2 October, 2020 Bulletin No. The P0677 is defined as a malfunction in the glow plug circuit in cylinder Number 7 of a diesel engine like Duramax. 5 winch 2008 Chev Silverado 3500 DRW Duramax. 7L code P21B0 Jump to Latest 3. com/watch?v=pXSSbrZyrLc&t=433s and I feel that if you watch both vid If you have a Duramax engine, diagnostic trouble codes (DTC) can be a headache. EGR blocker plate. Code is P20B9, def heater I believe. Correction Dealers are to replace the DEF tank reservoir. These trouble codes on your car will simplify the problem and the solution. Otherwise stock. Need help clearing DIC before limp mode. Chevy dealership in MI. Based on other threads here, and what I've researched online, the thermostats were the most likely culprit. Calling out all who had problems with DEF/Emissions Feb 22, 2023 · I’m a thousand miles from home pulling a 14,000 lb camper with a P21DD reductant tank heater code. Chevy / GMC Duramax 11-16 LML Forums. Replaced - Answered by a verified GMC Mechanic Jun 23, 2016 · #1 · Jun 23, 2016 (Edited 2002 Duramax 2014 Cruze Diesel. The dealer replaced it. May 8, 2019 · The most common cause for the code P21DD to set on your Duramax is usually due to a failing Reductant Tank Heater and the fix will require replacement. Good new is that the other codes are gone, but I am still in countdown to 55mph mode. Thank you, 13BlueGranite CC/LTZ/Z71/4x4 with all the fixins Duramax repair, Reductant system issues. 6l duramax and it has been throwing a code and it is p21dd Answered by brandon thaggard in 1 hour 5 years ago brandon thaggard Mar 5, 2015 · 2011 GMC 3500 Denali HD, Banks Exhaust From DPF Back, Stock Tune, Pullrite 22K Super Rail 5th Wheel Hitch. Would anyone be able to explain what these three codes mean? Aug 8, 2012 · Truck just had def put in about 50 miles ago but I am now getting a service exhaust fluid system message and some kind of icon in the dash that looks like a cloud coming out a tailpipe. Here is the section that covers that code P21DD which includes a test, but it looks like you may need a scan tool so you might want to take this to the dealer or a mechanic with a scan tool. Scan showed trouble code P21DD. Sep 4, 2021 · Check out my social media!!!!!0:00-intro0:51-showing code P21DD1:55-starting to remove side step4:06-removing tank connectors and hoses4:52-removing DEF inje Jan 19, 2024 · Code P21DD. As long as the engine is performing properly you are safe to drive it but this does need to be addressed as soon as you can get it in. Started the truck up and the same code was there so I took it for a drive to see if it needed time to reset. Gen1 Diesel Technical Discussion Mar 3, 2019 · Chevy / GMC Duramax 11-16 LML Forums. Even the oil change jockey should of been able to read the code and pull it up. Replaced air filter and performed regen at freeway speeds and performs per 2015 Chevy Silverado 6. But they wanted to check with GM on why it is failing. I turn around and drive a hour to the same dealer. 2020 GMC Sierra SLT 3500 CC/SB L5P 3/14/20 Payload 3726lbs. Jun 17, 2018 · Dealer pulls code p21dd for def heater. I have found something about an extended warranty extension #14652? Anytime else come across this? 2012 lml only 51000 miles. When I took it to get looked at on my local auto hobby shop, I received three codes from the shop. Replaced Engine Coolant Temp sensor and cleared the code. in G. Diesel Exhaust Fluid (DEF) is used to assist in converting leftover exhaust particles to harmless gases. November 17 , 2016, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Cover) / BDS Skid Plate / Bilstein 5100's / Cooper AT3 XLT LT285/65R18 / CST DEF Tank Skid Plate / Gen-Y 16k Offset Hitch / Husky WeatherBeaters / Mad Jack Fuel Access Door / Mountains 2 Metal NOCO Bumper Grille / NAPA Legend AGM Batteries May 1, 2015 · 2014 Chevy Cruze Clean Turbo Diesel 202K (Domenic), 1986 Mercedes 300E 5 Speed odo broken (Rammstein - Sold and then repurchased), 2017 Honda Civic Sport Hatchback 6M 7K (Gordon), 2004 Mercedes S430 4Matic 187K (Kevin) - Going to be the daily grinder for now, but I still love my Cruze!! Nov 3, 2021 · 2016 LML GMC 2500. Oreilly checked it and came up with a P21DD code. Everyone was pointing me to EGR replacement. Then on Jan 27, 2021, it happened again. 6K views 2 replies 2 participants last post by Plowboy911 Apr 19, 2019 Jan 1, 2020 · Whats up my Duramax pals. Wouldn't you know, I cleared the code on Sunday and it never showed up again. May 10, 2019 · So today the MIL light came back on - So i hooked up the code reader and read the codes P21DD (def tank heater) P0650 (MIL Circuit malfunction) So I think back and the last time I got def fluid was from the local Kum & Go - They had been having issues with the pump and they were disabled for a few weeks and when I got DEF it was a few days after they had the pumps repaired. Sep 26, 2017 · My apologies to bump and old thread, but I hope a GM customer satisfaction representative is reading this regarding code P21DD on the 2014 CTD. Limped there, in 3rd gear. However, DTC assists in analyzing the issue in the Duramax as early as possible to avoid any further damage. After checking the net and finding you guys and reading your stories, I decided I must have DEF problems. Dec 25, 2017 · 2006 Silverado 3500 crew cab dually Duramax LBZ. Did some research, and looks like it was a somewhat common issue on some LML D-Max trucks. If you hire a professional, you will be required to pay a labor cost for it. Has to do with heaters in the DEF tank? Doesnt seem like an immediate worry but not sure Mechanic's Assistant: Have you checked the coolant level? Sep 22, 2018 · They're right. There are other helpful videos such as https://www. Customer Letter Mailing Hi Tony. 8M posts 222K members Nov 10, 2018 · That’s the DTC code for the DEF Tank Heater. , SO today I received a letter from gm stating if you own a 2016 GMC Duramax I believe this applies for 14-17 Chevys 2500, 3500 Duramax models also. Besides, some other minor electrical component failure can trigger this issue closely connected to the DEF heating system. I’m getting code p21dd. Used scan tool to command heater 1 on-weak. Aug 22, 2024 · Cruze diesel def reservoir heater failures – diesel news, info 2015 duramax p21dd & p20b9 Code p2101: chevrolet throttle actuator position performance Customer: Hello, i need to figure out what my issue with the p205B code is on my 2016 chevrolet 6. Indicates problem with heater circuit in the def tank . With Edge Insight monitor. Last week my def tank froze with a full tank of def, the technical analysis on the code said either water intrusion on the reductant def tank heater wiring harness or a bad def tank heater. GM TSB # 29400-01. 2016 truck has emmisions compliant CP 3 with a lift pump. Came one again in about 500 miles. I was blessed with the P20B9 P21DD code on my 14 diesel. "Diesel Reductant Tank Heater Circuit 1 signal low" was the translation. Nope, I then gained 2 new codes. Sep 6, 2024 · Duramax Fifth Generation: 2011-2016 (LML) P21DD Code. They said "It shows the exact same codes". Save Share Chevy and GMC Duramax Diesel Forum. Ok fine pick the truck up. Feb 3, 2021 · Drove it several months. Thanks Greg Code p20b9 and code p21dd. Oct 31, 2016 · My 2013 stock GMC Duramax threw a P140c code. Coded on Jan 28 P21DD reductant tank heater. Please see the attached bulletin for details. 4 days later im on the expressway driving to my camper and bam light pops back on ith def fluid quality low. I have a 2016 Chevrolet Silverado 3500 and had the check engine light with code P205B. 5 (LBZ & LLY) Top Contributors this Month DEF Diesel Exhaust Fluid Heating Pot Kit 2012-2016 Chevy Silverado / GMC Sierra w/ 6. Check engine on DTC P02C1, P21DD, P221C, P10D9, P10F3, P143C, P20B9, and/or P221E Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Cadillac Escalade Models 2021 2021 LM2 Chevrolet Silverado 1500 2020 LM2 Silverado 2500HD/ 3500HD 2020 L5P Suburban 2021 LM2 GMC Sierra 1500 2020 LM2 Sierra 2500HD/ 3500HD 2020 L5P Yukon Models 2021 LM2 Involved Jan 24, 2023 · 2015 GMC Sierra Denali 2500HD 4x4 / AVS Vent Visors / Banks (Boost Tube Kit, iDash Super Gauge, Monster Exhaust, Pedal Monster, Ram-Air CAI, Rear Diff. I talked with a Chevrolet Service writer and discussed what I had discovered from you guys. Customer: I have a 2016 gmc Sierra 2500hd 6. replaced it. Dec 24, 2015 · LML Chk Engine P21dd code Thread starter chris199; Start Jan 7, 2016 #7 Duramax Hard Parts. 5 winch 2014 Chev Silverado 3500 DRW Duramax. 2014 CTD Error Code P21DD Emission Reductant Tank Heating System (urea) Tags 2014 code code Oct 26, 2017 · Check engine light on and countdown to limp mode has begun. 9K views 3 replies 5 participants last post by The Bone Feb 4, 2022 OBD II Fault Code. Mar 4, 2020 · $127. Can I still drive my vehicle with OBD-II Code P21DD? Driving with OBD-II Code P21DD may be possible, but it is not recommended. The reductant heater is responsible for warming up the diesel exhaust fluid (DEF) before it enters the catalyst, helping to reduce harmful emissions. The Glow Plug Control Module (GPCM) will command the IAH on when the engine coolant temperature is below 40°C (104°F). Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Lots of good info posted - thanks, ya'll! Check engine popped on my 2015 Silverado 2500 HD. clearing codes does not clear the message. Many Duramax owners experience this issue, which relates to a problem with the Nitrogen Oxides Sensor 2. This popular heavy-duty truck engine often catches you off-guard if not appropriately maintained by showing trouble codes such as P0101. The codes are $7E8, $7EA, and $7EE. My code light came on p21dd , so is it the heater for the def? Mine did the same thing and drove it for a while (a couple weeks). Question: Jump to Latest 11K views 3 Dec 9, 2015 · Duramax® 6. By luck I was within blocks of the dealer. 11-16 LML Duramax Powertrain. P20b9 P21DD 2013 gmc 6. 6 diesel 6. Had code come up back in December 2015 and paid the dealership to have the whole reservoir replaced at around 65k miles I believe. Customer: P21DD dtcv code on a 2016 2500 HD GMC Truck. , i had a p20b9 and a p21dd code. the p128e. Jw if anyone on here has seen that code or knows what it is 2006 GMC CCSB LBZ, Debadged,5 inch mbrp with 4inch downpipe 6inch tip,AFE stage 2intake, EFI Live DSP5 tuned by duramaxtuner, Cts insight. Remote start. Started the engine and P2463 is the only code that returned. 6L Duramax® Turbo-Diesel Engines are covered for the first 5 years or 50,000 miles, whichever comes first. For DTCs P21CD and/or U02A2, this can indicate a concern with connector C4851. vehicles involved is approximately 127,920. Jan 20, 2017 · P21DD Reductant heater 1 current too low The GPCM (glow plug control module) is what detects the heater open circuit in the heater which monitor voltage to the 3 diesel exhaust fluid heaters (DEF), Diagnostic Trouble Codes (DTC) will tell you about the problem with your car. Jun 18, 2013 · 2014CTD, 21k miles, new in April 2014 - P21DD thrown around 5/15/2016, only other CEL was back in 7/2014 for the #2 exhaust temperature sensor that many of us have seen. 5 (LBZ & LLY) Top Contributors this Month Feb 2, 2015 · 6. I have a friend that just took his into the Stealer and they replaced his DEF tank for free. , ASE master, cert. 6 duramax code p0088. Sep 28, 2020 · Well, cleared the code on Monday, drove it around yesterday and a bit today, that particular code didn't come up again, but stated throwing the P21DD code. 5, and now this 2016, so I'm familiar with the Duramax and DEF, but I've never had a problem until now. Still have message. electrical, a/c, susspension, brakes, electronic steering Nov 22, 2020 · I will be replacing the reductant DEF tank heater in a 2013 Chevy Silverado 2500HD 6. : 20-NA-195 Cause 5651968 This condition may be caused by a damaged NOx2 sensor, as shown in the graphic Mar 27, 2016 · Stuck in Alabama w/ Dreaded P21DD code (DEF heater issue) SuperBlackTruck Mar 27, 2016. 0L Duramax diesel engine How Much Does It Cost To Fix Duramax P205B Code? The typical cost of fixing the P205B code on your Duramax will depend on whether you will do it yourself or hire a professional to help out. PPE Tuner & Vmac compressor, Fab Fours front bumper with16. 2015 Silverado 2500 crew cab single rear wheel LML. If you’re not confident about conducting diagnostic tests on your vehicle, it’s a good idea to bring it to a professional mechanic. I have a 2011 duramax and it seems like a code goes off religiously every few months. One guy also suggested replacing MAF Sensor. youtube. Pulled battery cables for 30 minutes and drove truck for 20 miles. It was the heater, i fixed it sun. Pulled 16K 5th wheel from Arkansas to Georgia and back at Christmas. 6 liter. At the end of the article, we hope you have got all your questions answered thoroughly. Frequently Asked Questions (FAQs) 1. com: User Name: Remember Me? Password Conclusion. 10,976 Satisfied Customers. As far a removing the egr and or dpf , you still need to tune the truck. The P21DD trouble code on Duramax means “Low Current in the Reduction tank Heater. Cleared it with my tuner and was back after 2-3 starts. 6. 6L Duramax Gabriel Grey ASE Certified Master Technician Sep 29, 2016 · 2014 Chevy Cruze Diesel - MSR 013 17" wheels, Black Bowties, UR Rear Lower Bar 2007 Chevy Cobalt LT Coupe - M62 w/ 2. 1. May 28, 2023 · 2011-2016 (Non Powertrain) P21DD - No DTC found P205B - Reductant Tank Temperature Sensor Circuit Range Performance Feedback? 13BlueGranite CC/LTZ/Z71/4x4 Mar 28, 2018 · 2013 Chevrolet 2500HD LTZ Z71 Bone Stock because I like it that way! ASE Certified Transit Bus Technician Mar 5, 2021 · I just picked up my 2015 GMC Duramax (LML) with 20K miles this morning after having the DEF tank replaced under the GM Special Coverage 29400 extended warranty. AirLift LoadLifter 7500 XL Feb 8, 2020 · 2016 GMC DenaliHD Crew Cab 4WD DRW 3500, GAZ Summit White/H2Y Cocoa Dune, 5SA Denali, CF5 Power Sunroof, LML Duramax 6. Replaced def tank heater assembly. stock plus Vmac compressor, Warn front bumper with16. Mar 22, 2022 · Check for recent codes “P21DD” 2021 GMC AT4 2500 Duramax Zone 5 Lift, Fuel Couplers 20x10, 37x12. Advance Auto Parts read it for P21DD - Def Heater #2. "1" in the third character position in a DTC indicates that the fuel and air metering and auxiliary emission controls is experiencing a Nov 12, 2022 · While not a frequent DTC, the P11DB code happens occasionally in Duramax engine-powered vehicles, such as Chevy and GMC. Jump to Latest 367 views 2 Reductant heater replacement. 7/22/2019 - Service trailer brake message is on when no trailer is being towed. The P21DD diagnostic trouble code (DTC) refers to the Reductant Heater 1 Current being too low in the vehicle's selective catalytic reduction (SCR) system. Had codes P20B9 & P21DD. LTZ. Jan 1, 2020 · Code P154A GMC Description The Intake Air Heater (IAH) is located in the air inlet tube and is used to warm the incoming air to aid in starting the engine and for proper cylinder combustion. Answered by david craig in 13 mins 5 months ago david craig Nov 10, 2019 · 6. Orange Nitrile Gloves https:/ Oct 19, 2015 · I had the check engine light come on. It is most likely caused by a failing upper NOx sensor. However, During the test drive in an attempt to clear the permanent codes and get out of the limited speed control, the check engine light came on AGAIN and threw a new code, P2089, Reductant Pressure Too High. 5-2005 (LLY) 6. does clearing the code offer absolutely any mechanical benefit whatsoever? 2015 Duramax, 1986 M1031, 2006 Sep 13, 2016 · Gen1 Diesel Technical Discussion. In technical terms, the code P20b9 stands for “Reductant Heater “A” Control Circuit/Open”. 5 (LBZ & LLY) Top Contributors this Month Check engine light with p21dd and p20b9. bleeder screw, WIF sensor delete plug, Fumoto oil drain valve, Pacer LED cab lights, GM dually light bar under tailgate, Footwell lights, Cobra 29 WXNWST CB radio, Wilson 2000 CB antenna, Kenwood speakers, GM chrome oval running boards, Bilstein 5100s, Michelin Jun 29, 2023 · 10/24/2018 - Code P21DD, replaced reductank reservoir, pump and harness. A few months ago the check engine light came on. I have a 2014 6. Feb 5, 2018 · P21DD question as still confused about one aspect. Back in 2013 GM issued a letter explaining the warranty repair for 10 years 120,000 miles. Jan 31, 2019 · This thread and in particular post #12 from EJCarter. That is because the emissions laws don't allow code clearing to clear the message. Reductant heater and codes P20B( P21DD. Jan 17, 2020 · Web 67-72chevytrucks. This OEM quality DEF heating pot is a commonly replaced part for DEF heater failures and DTC trouble codes for exhaust fluid heaters and def fluid level sensors. 2L Diesel Engine Duramax Third Generation: 2006-2007. But do you know what code P01F0 means on Duramax? The code P01F0 on Duramax means the coolant temperature is below the standard diagnostic temperature. P01F0 code 2015 Duramax, I've cleared the code multiple times. Jun 30, 2017 · 2007 GMC Sierra 3500 SW Duramax. Good The code P20b9 on Duramax is a bit intimidating, especially if you’re reading it for the first time. Code was P21DD. Possible DTC's are P20B9 or P21DD. third time the check engine light came on, read the codes, one was p2510 engine control relay, sense circuit- range/performance problem the other was p262b ISO/SAE reserved. Claims with repair orders prior to November 17 , 2016 , must be submitted to the Service Contract provider. Can you still help me with another Vehicle of mine with the code P21DD on a 2015 Chevy Silverado k3500HD 6. In that case though, it would be a diagnostics charge and then you'd have to pay for what ever needs fixing. 4/11/2019 - Check engine light, internal failure of indirect injector. 5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004. Jul 30, 2014 · 2005 Silverado EC/SB, LLY, 4WD, Edge CTS w/ EGT probe, LML Exhaust Manifold, PPE shimmed FPRV, Banks LBZ air cleaner, Profab intake, LBZ Turbo Mouthpiece, Kennedy twin lift pumps w/ megafilter, Corsa 304 SS Exhaust, Mike L tranny cooler, EXAXT Steering System, Redhead Power Steering Box w/ Amsoil PS fluid, Green Torsion Keys, Allison Deep Pan w/ Suncoast Filterlock and Transynd ATF, Bilstein The P205B code is a generic powertrain code that various makes and models can log. DTC P21DD My 2015 Duramax is throwing P21DD code and P21DDpd code. Cognito UCA, Bilstiens, MA sleeves. Disconnect and inspect C3613 (16 pin connector) at the reductant pump/heater assembly and C4851 (4 Jan 8, 2017 · P21DD Code - Thanks! Just found this site - haven't had a need until today. Duramax P21DD P20B9 Condition Code: 49 Service Procedure NOTE: For DTCs P21DD and/or P204C, this can indicate a concern with connector C3613. As the trouble code P20EE brings some specific problem on the Duramax engine, you have to solve it accordingly. Jump to Latest Feb 13, 2023 · My 2015 Duramax with 130k miles threw a P01F0 code, which my scanner and other threads on here confirm is a low coolant temp. 6L Duramax diesel engine or 3. My truck was outside of the standard warranty but still well within the 10 year special coverage outlined in the letter from GM that EJCarter posted. Got back Jan 4. The total number of U. They pull code p21dd along with another code for def flow. Which you stated you didn’t want to do. 80 gallon ATTA tank. The codes I have now are P20E8 - Reductant Pressure Too Low, P2047 Reductant Injector Circuit/ Open Bank 1 Unit 1, and Aug 26, 2024 · Are you dealing with the frustrating P11DC code on your Duramax? Don't worry—you’re not alone. So clearing the message is difficult. LML. May 13, 2020 · The service tech did advise though that the P21DD code can come up for other failures in the system that aren't covered under the special coverage, but it isn't likely. What can I get that would prevent me from going into limp mode before I get home? Any help or suggestions would be Jan 31, 2013 · 2012 Chevy Silverado 2500 HD LT, CC/SB, 4x4, 6. No worries, the first thing you should look for is a clear understanding of what the code means on Duramax. Check engine light came back after sitting over night and warmed up before heading to work. it happened twice didn’t think much of it, jumped it off runs fine. I had a couple errors P21DD and P2463 P0674 I replaced the def tank heater for P21DD and all new glow plugs for the P0674. atm gfddqj ssr sdhz wjaluw cqe mxa tigoz xjavhs ckoyndt