2016 duramax ecm problems. Doesn't seem right to me.
2016 duramax ecm problems Drove it to Midland and back no problems except idling when it has sat. Programming included. 6 L | 2001-2007 6. 0L gas and the other a 2016 2500hd Duramax diesel and both had transmission issues this week. Replaced MAP, cleaned the MAF. Conditions for Running the DTC Nov 14, 2024 · So, in the past 6 months, I have installed five prospective aftermarket replacements, which have all failed. 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 Apr 28, 2020 · Sounds like your problem #17067: Product Emissions Recall - Diesel Dual Tank Fuel Transfer Pump Plumbing & Diagnostics - (May 1, 2018) Subject: 17067 — Diesel Dual Tank Fuel Transfer Pump Plumbing & Diagnostics Models: 2015–2016 Chevrolet Silverado HD 2015–2016 GMC Sierra HD Apr 23, 2011 · Ok so i got a new ECM tuned up from MMLMM and now the truck wont start. Here are the steps a qualified mechanic would typically take to diagnose the issue: Scan the ECM for codes: The first step is to connect a diagnostic scanner to the vehicle’s OBD-II port. Drove to the store no problem, come out a half hour later and try to start it. I’m going to discuss the important reliability changes that were made to the L5P and then jump into each of the common problems in detail. There could be a pin contact problem between the looms and the TCM. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the way back to the average guy looking to boost his performance in his tow rig to get up those hills a The 2016 Chevrolet Silverado 2500 has 160 problems & defects reported by Silverado 2500 owners. 00 – $ 1,299. I made one mistake that I believe fried my ECM. i have heard about doing the VATS reset of turn the key on and leave it for 10min then off and do this three times. The 6. When the voltage regulator detects a charging system problem, it grounds this circuit to signal the ECM that a problem exists. So, by relying on an external fuel source for a DPF re-gen, the LML kept its oil free of any fuel dilution. Unplugged the cable from the obd2 port Jul 2, 2019 · This eliminated the problem LMM’s had where diesel fuel would wind up in the engine oil, which could lead to major problems. 6L LML – LGH Duramax PDF: 2011 – 2016 6. Sep 24, 2023 · 2009 3500HD LMM with 75,000mi - initial problem was coming off idle at a stop the "low oil pressure shut off engine" appeared briefly on dash and then went off as RPMs increased. The truck wont even try to crank which i believe is do to the ecm being dead. ) That would be an easy test. I kept my OEM GPCM and swap it in whenever I return one of the new GPCMs, as it does not cause the transmission problems, just does not light up the glow plugs. 9 when this happens Apr 20, 2024 · Navigating these common problems helps keep your truck performing at its best. 6L V8 LML turbodiesel Duramax engine Bosch CP4 fuel pump failed. Installed it and can't flash a tune. I would continue to explore those wires. Before diving into the specifics, it’s essential to comprehend that the Duramax LML engine is a significant chapter in diesel power for Chevrolet trucks, featuring robust performance and specific advancements over its predecessors. Nov 27, 2016 · Here (Duramax Fifth Generation: 2011-2016 (LML) 07 Chevy Classic 2500HD 4x4 2LT LBZ CC/SB White Nasta Nerf Bars, Line-x, Rancho RS9000XL Shocks, Firestone air bags, Fold-a-cover, May 25, 2018 · Tried jumping it incase it was the batteries with no luck. I ended up having my V2 cloned at EFI and have not had any issues since. The BCM determines the output of the generator and sends the information to the ECM for control of the generator turn on signal circuit. Possible causes. Relay is responding incorrectly to the ECM command to de-energize. Aparantly I got the ECM and the Fuel Injection Control Unit confused. 6. Nov 3, 2020 · If any malfunction is detected, the ECM will set the code and illuminate the engine light. 5 Duramax ECM issue. I know this is an old post, but I have exact issue. 63vdc at FPR. 2017 work truck in the dealership with trans mechanical issues earlier in the week, ugh. Duramax LMM ECM problems I am still very new to EFI Live and using the AutoCal set up. Jul 2016 Posts 1. The ECM monitors the generator field duty cycle signal circuit, and receives control decisions based on information from the BCM. Between 0–5 percent and 95–100 percent are for diagnostic purposes. open you hood. Made it about three miles and the truck threw lights and locked in first gear as I pulled away from a stop sign. This is a non-refundable charge, however if your module is not serviceable, this charge will be credited toward any hardware purchase or programming service. Aug 15, 2022 · 2011-2016 6. Jan 1, 2020 · (THATS FROM THE LETTER FROM GM) MY TRUCK HADE THIS EXACT PROBLEM AT 24000 MILES,SO I STRAIGHT PIPED IT. That was the most straightforward answer possible. Does anyone know which pins the switch should be wired in for the 2015. Duramax LML vs. Grab your ECM connectors and wiggle them slightly and see if you get communication back. Free ground shipping on all orders. All good until suddenly both P0090 and P0045 and limp mode. The MIL informs the driver that an emission system fault has occurred and that the engine control system requires service. 2010 – 2017 Duramax LGH; 2011 – 2016 Duramax LML; 2011 – 2021 Duramax XLD25; 2012 – 2021 Duramax XLD28; 2014 – 2021 Duramax LWN; 2017 – 2021 Nov 27, 2016 · ECM and TCM Recall The dealer performed the voluntary DPF recall which reprogrammed the ECM and the TCM and cleared the CEL P20EE code. Feb 22, 2024 · 2016 GMC DenaliHD Crew Cab 4WD DRW 3500, GAZ Summit White/H2Y Cocoa Dune, 5SA Denali, CF5 Power Sunroof, LML Duramax 6. The Truck Edition module is designed for towing and fuel econ 2014-2015 Duramax equipped vehicles, VIN code 8, 8th digit is “8”. Jul 17, 2011 · ECM is done, buy new ECM and start from scratch. Tried to crank and absolutely nothing, but all interior functions worked fine. But the ECM (all by itself) can do nothing. Nov 12, 2012 · 2016 Duramax with Code P2049 It has no power and misses real bad. 2016 Duramax 6. the ECM is near the fuse box. Remanufactured Chevrolet 6. i am a diesel mechanic mostly heavy duty. Doesn't seem right to me. That was over a year ago, never had any problems since. 6 L | 2007. Engine Control Module (ECM) When the engine is running, the generator turn-on signal is sent to the generator from the ECM, turning on the regulator. Codes are p0642 and p0802. Kind of at a loss with it. 2 injection pump. . Typically, they cause the transmission problem. Conditions for Setting the DTC. Code 0495 (engine cooling fan speed too high). the Mar 18, 2017 · I have a 2016 Denali. Feb 25, 2018 · had a bad glow plug on#4 changed the plug reset code parked the truck outside 6hr later started engine check engine light came back withPO674 plug checks ok I have deleted 5 or 6 times & check engine light keeps coming on with same code would there be something wrong with the controler. Feb 15, 2023 · These numbers do not change on scan tool, even if sensor is unplugged! Have it eliminated down to DSP 5 Selector switch is wired wrong or ECM is junk. 5 LML? The instructions from my tuner say to wire to: 2011-2016 LML: Gray ECM connector J3 Pin # 11 & pin # 35 The 2016 Chevrolet Silverado 2500 has 5 NHTSA complaints for the engine at 22,800 miles average. Had ecm checked out and it’s toast and not repairable. Speaking of fuel, the LML was the first Duramax to be able to run on a B20 blend of biodiesel. 9 when this happens. Reason: controller has returned to normal operation. I dont want to buy this part, and it be wrong and im out 500 dollars. Not bad for an 8000 lb vehicle. cc/sb '05 K2500HD cc/sb D/A LT V2 w/fan, Fan Damn Max, twin 130 amp alts, LBZ mouthpiece, BD manifold, custom high flow up pipes, 4" down pipe, kitty gone, P/S cooler, EFI Live, boost and pyro gauges. The Ignition is in the START position. Very difficult to solve your problem without that DLC to ECM connection. It got worse for 2016 ECM's. Currently on a long road trip, and check engine light came on. Dec 7, 2017 · I have verified that the issue is persists with multiple tune files and that it is not constant (ie it takes a few minutes for the codes ECM P0101 and ECM P0405 to come on with a Check Engine Light and "ENGINE POWER IS REDUCED" message). Apr 11, 2022 · What kind of injector problems was your malfunctioning ecm causing, if you don’t mind me asking?? I have a 2016 lml and I think I’m having an ecm problem as well. 25 Ton (Army CUCV) with Banks Sidewinder Turbo and Gear Vendor's Overdrive; 83 Chevy Suburban 6. Instrument Panel Cluster The instrument panel cluster provides the Jul 15, 2020 · 2011 GMC 3500 Denali HD, Banks Exhaust From DPF Back, Stock Tune, Pullrite 22K Super Rail 5th Wheel Hitch. Or so I thought. Try grounding the TCM fin and see if it will start. It communicates with the engine control module (ECM) and the instrument panel cluster for electrical power management (electrical power management) operation. #9 · Jan 30, 2016. Bought used from the original owner at 51,xxx. All told, there are six different iterations of the Duramax: LB7, LLY, LBZ, LMM, LML, and L5P spanning from 2001 to the present day. 6L Duramax ECM with a lifetime warranty. Feb 18, 2021 · I know I know, theres tons of information pertaining to this problem. I have a 2003 Duramax. So we purchased a used ECM from SoCal hoping that was the issue. Drove the truck about 30 miles yesterday at the speed limit of 55 mph fuel mileage was setting at 24-25 for the entire trip. Looking for insight from the masses. I backprobed at the ECM and found Aug 8, 2016 · hello everyone im new to this forum but not new to the diesel world. But no check engine light. 5v down to 12. Before I start wasting more time chasing this problem I thought I would ask you guys on the tuning forum that do this all the time if you have ever damaged an ecm or other parts doing something similar to this with an older or quite possibly the first version of the duramax ? I'm really running out of ideas The 21500 Truck Edition performance module fits 2015-2016 6. 5 (LBZ & LLY) Top Contributors this Month Mar 21, 2018 · It certainly could be a wiring problem, but it could be either. Issues with the SCR System Mar 6, 2018 · After the ignition is turned OFF before ECM power down. Jul 17, 2017 · Hey guys, been a while since I've been here. Please retry the operation. This makes me concerned that Auto ECM quoted to rebuild my ECM when in fact they had my FICU. " So I waited for the 15 second countdown and everything. 5-2010 6. The next day I replaced both head lamps by removing the battery on the driver's side and the filter on the passenger side. We'll see if things continue. No ECM for this truck available in the universe. Dec 13, 2019 · Normal duty cycle is between 5–95 percent. w/ ecm/pcm module A. 2L Diesel Engine Duramax Third Generation: 2006-2007. Conditions for Clearing the DTC DTC P2510 is a Type A DTC. Mar 14, 2023 · Duramax P128E Code Diagnosis. 6L V8 diesel engine family. I checked wires from FPR back to ecm and no breaks or knicks. Get Thermostat Kit, LML, 2011-2016, Duramax at Dans Diesel. I chased an injector issue for over a year and it ended up being a bad pin connection which then led to a bad ECM Mar 4, 2018 · The CAN communication circuit located between the engine control module (ECM) and the glow plug controller; The engine ground circuit; The glow plug supply voltage circuits located between the glow plug controller and the glow plugs. Diagnosing the P128E code in a Duramax engine requires a systematic approach to isolate the root cause of the problem. Rare code for a 2016 truck Dec 8, 2023 · When you encounter the “engine power reduced” message on your Duramax, it signifies that your truck’s onboard computer, or Engine Control Module (ECM), has detected a problem that could potentially harm the engine or impair its performance. stand in front of you drivers side headlights and look down. DON'T GO INTO THE DEALERSHIP AND SAY, I READ ON A FORUM THERE IS AN UPDATE TO MY ECM OR TCM. 5-18 volts. 2L 4X4; Retired Journeyman Heavy Duty Truck Mechanic Jul 2, 2012 · 2016 GMC Sierra 2500HD Denali, Flo-Pro 5" and Kory Willis tuned (Sold) 06 LBZ 2500 4x4 CC/SB Arctic White MBRP, S&B, EFI Live, Leveled, 35's, 20" Novakanes Aug 14, 2020 · Whether you currently own a Duramax powered Silverado or Sierra, or you have considered purchasing a used GM diesel pickup, the question will cross your mind regarding what problems you may experience with the engine. This ECM service cannot be performed in your vehicle. Sep 21, 2023 · Other problems of the 2016 model include airbag inflation issues and faulty console latches. pulled the ecm fuse and truck fired right up. This is my 3rd Duramax and by far the one I have had the most issues with. 6 L | 6. Replaced TCM and reflashed ECM. I shut it off, banged on the tcm, cleared the codes (I got ECM U0101 and ECM P0700), then drove home with all the same issues and it was locked in 3rd gear. Problem went away for a couple of months then reappeared. Rolls over once then nothing. CP4. When I got to TN I parked it and noticed I had a head lamp out. Feb 6, 2009 · We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. The simplest method is to turn your vehicle off for about a minute, then restart it. Jul 19, 2018 · The malfunction indicator lamp (MIL) is located on the instrument panel cluster (IPC). However I haven't quite found an asnwer to my own problem. The problem i Jan 28, 2011 · 2024 K2500HD. Pull over and kill engine and start it back up and runs good until it happens again which could be 5 miles or 200 miles … read more May 18, 2016 · 2016 First impressions and problems Jump to Latest 128K views 130 replies 56 participants last post by zert100 Sep 7, 2017 May 9, 2022 · No go and was informed that I need a new ecm. I found a used ecm at a local junkyard and installed it. This is the second time this has happened to him, both times were in rainy weather so I am thinking water must be getting into a connection. 6L LML ECM 12662677 remanufactured engine control module with a lifetime warranty. About this time last year I had to replace the egr valve and haven’t had any problems since. Leave the key in the ‘run’ position for exactly 10 minutes, then the security light will stay solid or go off. May 28, 2023 · The LML is the 2011-2016 variant of the Duramax 6. Going back to the original problem, the truck would either start (while pressing the accelerator) or it wouldnt, and would run rough when it did start. i have 05 duramax 2500hd LLY, the drivetrain is completely stock, no programmer, no cold air intake and no exhaust. 6L LML – LGH Duramax In order to do proper diagnostics you will need a scan tool, diagnostic service information and some special tools such May 29, 2013 · 2001 Chevy Silverado CCSB LB7 300,000mi and counting! New injectors @276k thanks to Lincoln Diesel! EFI Live w/ DSP5 by Duramaxtuner, AFE Stage 2 Intake, ProFab Turbo Horn, PPE BIV, ProFab 3" Downpipe, 5" Downpipe back MBRP Exhaust, FASS 150 Lift Pump, Rare Parts HD Gen2 tie-rods, Fleece IAH Delete, ATS Boost Fooler, Deviant transmission cooler lines, Boost and Pyro Gauges Outlawww Apr 4, 2020 · Owning two 2500hd Silverado's, one a 2017 6. I get an intermittent cylinder 2 misfire only while towing but when I clear the code and restart the truck a cpl times it’ll go away. 2016 Duramax equipped vehicles, VIN code 8, 8th digit is “8”. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Show Less Correct Ross. EFI live doesn't even show the ECM is there. Dec 20, 2014 · The Control Circuit for the Relay is powered from the ECM (High Side Drive - HSD) page D-67. What isn't shown are the conditions that must be met for the ECM to be enabled to send the Signal (+12 VDC) to pick the relay. And this was true beginning in 2011 LML E86, where the BCM needed to be detected. 5-2005 (LLY) 6. 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 Feb 3, 2021 · The TCM is a critical part of the (GMLAN) communication network that connects to the ECM, body control module, antilock braking system, security, seatbelts, airbags, and others. Action Taken When the DTC Sets DTC P2510 is a Type A DTC. They came back and said needs a new ECM. Aug 19, 2021 · I’m trying to help my buddy with a new-to-him LBZ. Dec 8, 2023 · If your Duramax displays a reduced engine power warning, you can attempt a reset as a quick fix. Action Taken When the DTC Sets P262B automobile fault code can be caused by various factors such as low battery voltage, faulty ECM, and poor electrical connection. P0700 trans control system malfunction P0181 fuel temp sensor malfunction P0116 engine coolant temp malfunction I found a loose neg. I have a 2008 Chevrolet 2500HD Duramax. The system voltage is between 9. 6L: Code P01F0: coolant temp dropped below diagnostic monitoring temperature. I need help. But, I cant seem to find the right one The guy who helped me before gave me a PN to a Duramax Savannah. Jul 10, 2023 · 2016 GMC DenaliHD Crew Cab 4WD DRW 3500, GAZ Summit White/H2Y Cocoa Dune, 5SA Denali, CF5 Power Sunroof, LML Duramax 6. I plugged the 2 connectors that go to the ECM vice versa in other I connected the 2 in the wrong ports on the ECM. 5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004. Dec 3, 2021 · But if I am out on a job for a couple of hours and then restart it happens again. 2L 1. The do same with the other connector. Dec 30, 2014 · 2005 LLY CC/SB Big Dipper Trans Bullseye S366 12. But I have the 06 LLY. The relay armature is held in the open position by spring tension. Tried this once so far and nothing. i put six inch lift and 35in tires on it a little over a year ago. Dec 16, 2019 · Had a similar problem when I did my thermostats ended up being a loose wire in one of the packs. Apr 9, 2016 · Tried to read the tune out of a friend's 04. Refurbished/used, graded and tested, or Factory New Aug 23, 2016 · 2016 GMC 3500HD Denali CC LB 4x4 :gearjamin B&W turnover ball - Campanion 20K 5th wheel 2017 Augusta Ambition 38RLS 5th Wheel ~19,300 lbs SOLD my 2003 GMC CCSB Sierra SLT Duramax SRW Nov 10, 2023 · Duramax LML Engine Problems. Currently looking for an ecm myself. Gauges and everything work now and it cranks but there’s only one problem, it try’s to start when the key is flipped to accessory. So far, have been unable to factory program any USED 2016 ecm using GM. Relay Base Pin 85 is Ground. 00 2017-21 Feb 1, 2022 · The engine control module (ECM) is the computer that manages every system on the vehicle related to emissions. thanks for any help. 45 gal Transfer Flow tank, B&W gooseneck hitch, class 5 hitch, Bilstein shocks, 285/70-17 on H2 wheels Jun 2, 2021 · However, it does suffer a few common problems such as MAP sensor failure, a weak transmission, and fuel injector failure. Jun 4, 2010 · My duramax recently threw a few codes U0100 lost com. 00. Special Tools J 43244 Relay Sep 7, 2012 · 2003 Chevy Silverado 2500 HD duramax LB7, with EFI Live, S&B cold air intake, 5" turbo back with a 6" tip, 42% over CP3, 30 % over Injectors, air dog lift pump. Chevy dealer claims Aug 28, 2020 · 38 posts · Joined 2016 out some problems with my 2007 LBZ Duramax / 6 Speed Allison truck for 3 months now. Engine Control Module (ECM) Programming; Faulty Engine Control Module (ECM) Faulty Engine Control Module (ECM) harness is open or shorted; Faulty Engine Control Module (ECM) circuit poor electrical connection; The ECM might be malfunctioning. However the TCM still shows up. 2017 L5P CCLB DRW LBZ Aug 3, 2021 · 2016 gmc 3500. However, the problem is still there. We have a handful of Duramax LML engine guides and plan to continue adding more insightful, in-depth articles for the LML. Below, we give a list of these reliable models you can pick. Feb 26, 2017 · There is a bulletin to reprogram the ECM AND TCM together. The 2016 Duramax 6. Swap old harness out with new hooked everything up in its proper location. 2 Injection Pump Failure; DEF Heater Problems; NOx Sensor Failure; DEF Pump Failure; The buzzkill of the LML is the CP4. They cleared the code, took it for a 35 mile test drive, and said no other issues since the code did not pop up again. Conditions for Running the DTC. Just yesterday I was on the interstate and it popped up on the truck dash saying reduced power. When the ECM detects that the DOC is not reaching a pre-determined temperature during an active regeneration event this DTC fails. To fix this issue, replacing the faulty NOx sensor is often necessary. This diagnostic test runs twice a drive cycle. No Codes. just to let you know i don't have equipment to test further. That shorts and burns the TCM ground. 6 diesel SLT. May 13, 2011 · the tcm is near the fan shround. Also the lights dim every 5 seconds or so when at idle, the voltage goes from 14. Nov 23, 2021 · So the other day I was replacing my engine harness 15 LML 6. Mar 3, 2012 · 07. Therefore, a circuit condition on one sensor 5-volt reference circuit may affect multiple components. It first must be programmed. In stock, ready to ship. When the ignition switch is turned to the Run or Start position, current will flow through the relay coil. May 25, 2013 · my lmm did the same going down the road one day, engine just died. Dec 28, 2019 · Show reduced power on the instrument panel and it feels down on power, maybe 75% of normal. Go figure. 2016 LML ECM, 12662677 $ 249. Besides that it is completely stock. to replace the ecm. Dec 11, 2007 · Kurt, you need to fix this issue of wiggling wires to correct the problem, what happens when you hit a bump at 70 mph and your truck turns off because of a loose wire wiggling? This can be a potential dangerous situation, so get in there and secure those wires. Your Duramax VIN will be required in the notes section upon checkout, or contact us separately. The automobile fault code P262B can be caused by low battery voltage, a need to reprogram the Engine Control Module (ECM), a faulty Engine Control Module, an open or shorted Engine Control Module harness, or a poor electrical connection in the Engine Control . Mar 26, 2022 · I had this same issue. Aug 25, 2024 · When the NOx sensor is faulty, it may send incorrect data to the engine control module (ECM), leading to improper adjustments to the air-fuel mixture. Larry Apr 2, 2018 · 2018 GMC Sierra 3500HD SLT 4WD CCSB White Frost Tricoat/Dark Ash Bench, Duramax Plus Package, Gooseneck/5th Wheel Prep Package, 220-Amp Alternator, High Idle Switch, Smoked Amber Roof Marker Lamps, Rear-Sliding Power Window with Rear Defogger, 6 Air Bags, Heated Steering Wheel, 6" Chromed Assist Steps, Spray-On Bed Liner, All-Terrain Tires, Rear Underseat Storage, RetraxPRO MX Tonneau Cover May 2, 2014 · A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. He cranked his truck this morning and made it maybe a quarter of a mile before his dash and gauges went haywire (needles maxing out and all warning lights on) and the truck died. 67@133mph Fuel only Apr 21, 2020 · If you have the check engine light come one at key up, it means that there is a connection to the ECM. Dealer wanted $1400 plus labor, etc. Finally took it to the dealer. Currently 111,xxx miles. Have a 2011 Chevy LML, 2500 CCSB 4x4, stock. Feb 1, 2023 · The Duramax can be an excellent engine for your truck if you avoid the model years above and stick to its durable and reliable ones. I drove my 2008 Duramax from CO to TN ~1300 miles with no problem. Feb 4, 2015 · Or you could remove the ECM C2 Connector and remove the Connector from the FRT Sensor, and OHM each wire (Signal & Common) from FRT to ECM Connector C2. My backup truck the 2016 had all the symptoms of a faulty TCM on the following Tuesday morning back to work Aug 31, 2016 · Put the old TCM in the truck and headed home. Conditions for Setting the DTC The ECM detects improper voltage on the control circuit of the STRTR relay. If this communication system is interrupted by another device on the circuit, that can cause problems with any other part, and certainly the TCM. L5P Differences Oct 7, 2018 · If the ECM detects that the STRTR relay control circuit is open or shorted, then DTC P0615 sets. It will crank, but not run. Outside of this problem, there aren’t many major or costly common problems associated with the engine. Truck commands and goes full rail pressure on startup. These 5-volt reference circuits are independent of each other outside the ECM, but are bussed together in three reference groups inside the ECM. Ground case of the ECM and I have Apr 22, 2010 · Hey guys, I am new here but have read through your forums ALOT to get answers on previous problems with my truck. the ecm is covered by a black cover. The engine control module (ECM) monitors the MIL control circuit for conditions that are incorrect for the commanded states of the MIL. I cannot find anything on this damn engine. wires from the sensors to the ECM. A $199 (Refundable) core charge will be applied at checkout, return shipping instructions provided. On a new note I have had several lbz ecm's lock up, have a pile of them stacked on shelf. Cleared the codes and that fixed the problem. Problem Dec 11, 2021 · Well this is a long story but I will try to make it short. 06 2500 Feb 14, 2021 · It seems the ecm might be at fault. Jan 7, 2016 · The engine control module (ECM) supplies 5 volts to components through 5-volt reference circuits. i have had the truck for almost five years now. The Relay Base Pin 86 START_RLY gets +12 VDC from the ECM. I have tuned more than 50 lbz ecm's with out any issues. Refurbished/used, graded and tested, or Factory New with 12 month warranty: Warranty is activated with purchase of any programming. Third time no crank at all. The security light will be flashing on and off. 5 L DS Pump | 1982-1993 GM/Ford IDI 2011-2016 6. So anyone with a 2016 GMC Duramax you can call 1800-462-8782 customer assistance Center. Nov 17, 2016 · Note-- common problem is someone contacts the exposed TCM fins with jumpers. 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 Sep 18, 2018 · My issue is, I need a part number for the whole harness. Sep 3, 2010 · What are the symptoms of a bad ecm? One day my truck would run great up to about 45mph the crap out on me, shake and rattle then die. Nov 3, 2021 · 2016 LML GMC 2500. First of all, disconnect and reconnect one connector, then see if problem is fixed. Feb 13, 2016 · The ignition relay is normally an open relay. 05@112mph w/ stock injectors, stock cp3 2005 LLY EC/SB Built motor Triple turbo Limitless Diesel Comp Trans 100% injectors 10. As soon as I got it (first week), transmission locked into limp mode. they said, "ok, well since in less than 2 years, these same ECM's are gonna be going in a vehicle thats gonna be exclusively GMLAN (the GMT-900's), lets just roll out high-speed GMLAN right now for ECM<--->TCM<--->GPCM communications Jul 19, 2020 · externally to the ECM. This can sometimes reset the Engine Control Module (ECM) and clear the reduced power mode. Its giving me the theft deterrent system indicator on the dash. Try again and rolls over a half then nothing. (FRT Pin 1 to ECM C2 Connector Pin 25 & FRT Pin 2 to ECM C2 Connector Pin 60 Common, as per Schematic. $995. ECM problems are rare. In the article below, we’ll outline all the problems in detail. Took it into a dealer in the town I am visiting. Yesterday it was hard to start and runs horrible then dies. 6L GM Duramax trucks (LML engines). itll be between the head lights and the fuse box and its under the radiator hose IIRC. Aug 25, 2018 · Check the ECM harness for wear-- possible shorting against metal-That code was cvommon for trucks with a FICM [01-05] whenn there was a bad connection at the injector- then it would shut down all injectors in that group and set a P2146- for one group, or a P2149 for the other group. I bought it a year Dec 28, 2019 · Having a couple issues with my 2013 Duramax 75,000 miles Show reduced power on the instrument panel and it feels down on power, maybe 75% of normal. No Mar 18, 2010 · Guy was very helpful. It got stuck and then popped up a message "bootloader rejected. A wire connected to the other end of the relay coil completes the path to ground through the engine control module (ECM). All wires tested fine including generator signal wire but I’m not receiving signal from the ecm to kick the alternator on. May 25, 2022 · I have the same problem I have a 2016 (NON Deleted) duramax 2500 with an edge tuner. Oct 19, 2021 · The body control module (BCM) is a GMLAN device. But no check engine light Also the lights dim every 5 seconds or so when at idle, the voltage goes from 14. New batteries, 3 different alternators, which all bench tested fine. Jun 28, 2012 · Because GM knew that the LBZ ECM and TCM hardware were going to stick around until 2010 with the GMT-900's. Replaced sensor with a Standard sensor. So now I can get a new whole exhaust and DEF system for my truck would display these exact codes. Make sure to use a high-quality replacement part to avoid future problems. 5 LLY. Understanding the Duramax LML Engine. The worst complaints are body / paint, lights, and electrical problems. Finally, Chevy Colorado diesel have infotainment issues and fuel leak risks in the 2016-2018 models. 6L LML ECM 12662677. Apr 25, 2018 · 6. However, if your scanner can't communicate with the ECM, there is a problem with the circuit between the DLC and the ECM. I was driving last week and while stopped at a stop light the enigine began idling really rough then the "low oil pressure" warning came on, then immediately i got the "reduced engine power" warning. They also are REIMBURSEMNET REQUEST FORMS I GOT ALSO!!! Jul 7, 2017 · 07 GMC Sierra Classic (LBZ) Duramax Dually Crewcab 4X4, FASS Titanium 95, Ohio Diesel Parts Tank Sump, bypass engine oil filter, synthetic lubes; 84 Chevy 6. When something goes wrong, the ECM will hopefully record a diagnostic trouble code and turn on the check engine light. Key on I’m seeing 2. Oct 19, 2016 · The engine control module (ECM) monitors the exhaust gas temperature (EGT) sensor 1 to determine if the operating temperature of the catalyst is achieved during a regeneration event. you need to remove that to see the actual ecm Oct 21, 2015 · Step 1– Attempt to start the vehicle. cable at the left battery. sihv exjugv ntswda tlwd ayrmz afogo nhgz znho hks glosawe