P0380 duramax code

P0380 duramax code. The powertrain control module (PCM) regularly checks the performance of the glow plugs. the code read p0380 glow plug/heater circuit A malfunction. If you have multiple DTC codes, fix them in the order they appear. Replacing a faulty glowing plug relay. 5. Apr 3, 2024 · What is P0380 Code; Symptoms of P0380 Code: 6 Causes of P0380 Code: 1. More on than off though. I have smoke once my truck warms up to about 180 degrees and have the p0380 code. I found one loose wire at glow plug 2 on drivers side (the jumper wire to the passenger side glow plugs. 5-2005 (LLY) 6. 6L LB7 Engine with a No Charge Condition with DTC P0380 P0621- kw battery diesel ECM fuse generator voltage #PIT3121 - (08/20/2004) Models: The following diagnosis might be helpful if the vehicle exhibits the symptom described in the PI. Dec 17, 2015 · The P0380 is a VERY generic code for the LB7 with Cali emissions. Jump to Latest Follow . Please find attached the P0380 diagnostic procedure. I do I have a broken plug in cylinder #8. ) Gear selection has no underline on an gear, (M) show no gear. so I tested power and ground at the module and its good. 5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004. I've taken a test light and I'm receiving power up to the glow plug controller. Sunday was the first cold day here and when I started it the check engine light was on and those codes were on my edge cts. In this video we have an LB7 Duramax with a code P0380. Sep 3, 2016 · P0380 code and starting issues! I recently purchased this truck from a friend. The delete allows for unobstructed airflow th At first, connect your OBD-Ii of any model to your truck’s scanner port located below the dashboard. Jan 16, 2016. 01 Silverado 2500HD. Still wouldn't start. 2004 2500HD Duramax/Allison CC/LB / 8" Fabtech lift with traction bars and dual front shocks/ Sway Away Race Runners/ 37X12 Oct 23, 2009 · P0374 Code Truck Is A 03 Silverado Lb7 . Nov 12, 2018 · That code is no harm to your truck but its definitely weird that it throws a code even when its in place. Got it back in the truck and put the truck all back together. What Does the Engine Code P0380 Mean? Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "0" in the second position means that this is a generic OBD-II (OBD2) DTC. When the powertrain control module (PCM) detects a variation in the voltage from the “A” area of the glow plug heater circuit that is more than a 10 percent variation from the expected output, the P0380 code will be detected. If you have a Chevy Duramax LB7 and possibly other Duramax engines and your getting the P0380 code, there are a few ways to diagnosis it. I dont see a help forum page, not sure where this goes. They have been recurring codes since. I got the truck with 240,000 it had a check engine light on and I got codes p0101, p0102, p0380, p0700. #9 · Oct 14, 2014. joey462m · Registered. 5 LB7 Duramax Powertrain P0380 and P0540. All the 700 code does is tell the ECM "something's wrong" and to illuminate the MIL. Dec 24, 2007 · Vehicles equipped with the 6. Mar 4, 2020 · Tennessee. Sep 6, 2013 · White smoke at idle p0380 code. I tested all glow plugs and they are under 1 ohm of Jan 13, 2008 · p0380 usually indicates 1 or more bad glow plugs but in some cases could also be a faulty relay. 1) Gear indicator light on dash do not work. About 20 inHg holds it all the way open Jun 6, 2002 · Please find an active Technical Service Bulletin for the P0380 faults, extended warranty on the glow plug system. In the initial step, we look to detect the issue with the aid of the P1093 code. Banks air intake, 4" turbo back exhaust from banks, 165 gph AD II. I had a friend turn the key on and off as i felt both relays for the glow plugs and they are both clicking. Jim. I've read though hours of googling p0380 and duramax gp issues. Nov 26, 2010 · I know that p0380 is glow plug relay or glow plug module . Feb 28, 2020 · I bought a complete donor LBZ engine and started rebuilding it. Mar 7, 2022 · The Diagnostic Trouble Code (DTC) P0380 indicates “Glow Plug/Heater Circuit ‘A’ Malfunction. Jump to Latest Follow 1 - 10 of 10 Posts. Jan 24, 2023 · Duramax p0380 is a generic powertrain Diagnostic Trouble Code(DTC), on Duramax diesel trucks and all makes or models made after 1996. Getting straight to business. 6 P0380. Faulty Glow Plugs: 2. 2005 GMC 2500hd , Xtreme FX EFI Live v2 dsp5 , AFE intake , magnaflow 3" dp , 4" dp back flo-pro exhaust , fass lift pump . #1. Joined Dec 18, 2016 · Chevy / GMC Duramax 01-04. New to this form, so forgive me if I mess things up a bit. Hi everyone I'm sort of new to diesels I work on semis for a living but as far as light duty trucks I don't have to much experience than just the weekend warrior. This is a common problem with these engines and unfortunately is misdiagnosed or n Sep 28, 2010 · Codes p0380 and p0540. It had been running great for the few weeks I've had it. Rplaced pedal assembly … Dec 4, 2007 · P0700 is the TCM requesting a MIL (Malfunction Indicator Light aka: "check engine"). 7 or so with the relay turned off, turned the relay on, and my scanner said that the glow plugs timed out or something to that extent. Everything is stock on the motor. Nov 4, 2008 · I reset the codes with my PPE and sure enough it came back on. Getting code P0340, camshaft position sensor, resulting in a crank no start. When I look for a replacement, all show dual relays for glow plug and air heater. As a result, the P0380 code appears on the OBD scanner to let you know that the glow plug has become faulty. I did the test light test on all glow plugs and it seems fine. Faulty Glow Plug Timer: 3. Use your power tools and screwdrivers to open the latches and screws and install a new fuel injector in the place of the old one. Oct 1, 2013 · LB7 code P0380 relay help. I'm now moving on to replace the relay and the large amp fuse. Ok so here is the deal I have a 2002 chevy duramax 6. Feb 23, 2013 · Reward for best answer- P0380 _ No start condition. 54 posts · Joined 2014. nonda. The difference is the California/clean fleet emissions trucks have the ability to detect if each individual glow is working or not. If the computer doesn’t get the right response from the glow plug, it will set the powertrain code P0380. 2L Diesel Engine Suspension & Steering - 2001 - 2010 Top Contributors this Month View All Feb 7, 2016 · How to delete the intake heater from an LB7 Duramax. 6 tcdi diesel 109HP (2006): P0380 OBD-II Trouble Code: Glow Plug/Heater Circuit “A” First i 01-04 Chevrolet Silverado/GMC Sierra C/K2500HD C/K3500 6. P0380 code - glow plug; safe to haul? Jump to Latest Follow 970 Feb 26, 2011 · OK my buddy has a 03 LB7 with a TST programer and he is getting codes P0380 and P1404. However, final diagnostics should always be done in person by a professional. Faulty Glow Plug Timer. 6 duramax 2004 GMC 1-ton DTC P0101 "" P0234 "" P0380 "" Po621 U1152 U1024 engine emmits grey-black smoke excessively I had injector recall work done 29,000 miles ago … read more Feb 17, 2006 · P0380 intermittent code Post by ranchw » Fri Feb 17, 2006 3:55 pm Hey, I've got a 2002 GM Duramax that is throwing the glow plug contoller module code and I cannot duplicate the problem. 6 LB7 California emissions engine and I am getting a P0380 code, glow plug malfunction circuit A. Faulty Connector: 4. Sep 1, 2008 · 6. So I installed all new plugs and wired #8 plug inside a pipe and connected the wire to this plug and also attached the wire that goes to cylinder #2 to the improved made Cylinder #8 holder. 3. Here we will go through the fuel injector nozzle fix: Step 1: Go through all the checklists. Jan 21, 2009 · I am new this forum. Removed what I thought was the glow plug relay assembly. If the fluid looks clean but low, you’ll need to add more. Jul 7, 2022 · Diagnosing a p0380 glow plug/intake air heater code on a 2001 gmc sierra 3500 6. Feb 21, 2014 · P0380 is for intake heater/glow plug circuit which at 80 degrees shouldn't matter. 6 auto California Emissions Working on a customer vehicle. In the engine standby condition, run the scanning in your OBD-II and wait for the result. Jan 11, 2013 · Chevy / GMC Duramax 01-04. There is another code in the TCM that you need to pull that will actually tell you what the malfunction is so let me know what that code is and I will help you out. You can unplug the two connectors on the glow plug controller, and measure the resistance of each pin. Duramax 6. Mar 4, 2020 · My 03 Duramax just died/quit going down the road today just like you switched the key off. 5-2005 (LLY) Closed / Archived Marketplace Ads 6. My ses light comes on intermittently. 2002 GMC Sierra 3500 California Emission LB7. Odometer: 223898. I tested all glow plugs and they are under 1 ohm of resistance and are good. Aug 13, 2017 · Basically, the P0380 code means that the PCM has detected a fault in the glow plug/heater circuit "A". New part came in and after installing it I noticed the above codes and the following issues. 6 LB7 code P0380 Ok so here is the deal I have a 2002 chevy duramax 6. Might be something to look at . Jan 26, 2008 · If a NON California emissions truck sets a P0380 then its most likely a bad glow plug controller. 236. Jun 11, 2010 · 2004 duramax k3500. Repairing a defective glow plug. ”. Feb 13, 2017 · 6. I found the following error in the error log of my Ford Focus Tunier 1. When I came back to start it a couple days later it started up and ran for under 10 seconds and then died. Note: This DTC is very similar to P0382 which that code refers to circuit "B". This truck has 116000 miles on it. co 👈=============================Engine Code GMC P0380 Saving Repair P Dec 17, 2014 · Here is my situation. 2004 CCSB 4x4 LB7 Duramax SAC45 Injectors from LDS, S369SXE, uppipes, manifolds, Mike L trans, SuperSport CP3, custom intake, Danville EFI LIVE, Fass Lift Pump, 5" MBRP Straight Pipe, Edge CTS3, lots of other junk. Perform a Visual Inspection: 2. While not so common, the ECU can often cause this code to be also issued. With my scan tool, it is giving P0380 circuit a code. How can we fix the problem? Put a blocker plate, but then how to get rid of code? Full delete? Where to buy the kit? Or just buy new parts and replace the bad ones keeping it stock. I made a detailed video of Aug 23, 2012 · Did you have an intermittent P0380 code? If so, how could a bad glow plug (heating element) cause the code to come and go? If not, what code(s) was/were set? I spent approx. Dec 19, 2016 · So I cleared the engine codes for the P0380 for the glow plugs and tryed to start it again. Jun 6, 2002 · I have 6 codes on my 6. Jump to Latest Follow P0380 and P0540. Anyone had this before and what was the fix? checked fuses relays and all wires are good. I will try again tonight when it is cooler. =============================Claim your FREE engine code eraser 👉 https://free. 5 (LB7 & LLY) Allison-equipped HD trucks. After using my code reader, it showed the P0380, which is the Glo Plug Heater Circuit Modual. 2L Diesel Engine Top Contributors this Month View All Aug 13, 2018 · Agreed. – Replacing blownfuses. This code is commonly seen in diesel vehicles, such as the Duramax engines found in certain Chevrolet and GMC trucks. How Chicago Ran a NASCAR Street Race. Used the front and rear cover, turbo, electronics, harness, intake (bridge and runners), and valve covers off of my truck. P0380 usually means a failed glow plug. Bad solenoid. 6 duramax turbo diesel Jul 15, 2012 · P0380 glow plug circuit A and P0540 intake air heater. Need opinion. J. Alright guys. Debris blockage in the valve body. Improper C3 lubrication. Dec 5, 2014 · Chevy / GMC Duramax 01-04. New motor Nov 21, 2008 · Duramax First Generation: 2001-2004 (LB7) Replacing glow plug controller solved my p0380 code. com 1. 1) I have replaced all the glow plugs each tested out at 7-8 Ohms installed in truck with wires disconnected. Finally, I ran a wire from this connecting Apr 30, 2013 · is there a difference between the glow plug relay and the glow plug controller? or a glow plug module? i have a p0380 code and figured i would start with the "easy" stuff first before i try replacing the glow plugs them self May 8, 2017 · 4065 posts · Joined 2006. 3) Truck will not shift into 4 Lo, just flashes light. 63. So two weeks ago I did the intake heater delete mod and just zip tied the coil out of the way, not unplugged or anything. Any advice you can give me will be appreciated. Feb 13, 2016 · Went into my edge and the p0380 code popped up. Tested the EGR and it holds a vacuum. Failure to communicate with fuel injector control module. P0700 code triggered the following occurred. Oct 20, 2008 · So my truck just set off a P0380 code. My 03 Duramax just died/quit going down the road today just like you switched the key off. So for safe measures I went ahead and replaced all the glow plugs with brand new Bosch glow plugs and I also replaced the glow plug Nov 7, 2014 · I bought the truck in its current condition. get the following codes code u1000 and P1273 and P1272 and P1287 and P0380. 5" Flo-Pro Crossover, AirDog II DF165 w/ tank sock,delete,TD-Max boost controller,OPS extension hose,Glow Jul 7, 2012 · While it was out I drove the truck waiting on new part. Need help with P0380. 2003 lb7 wont start and the only code is a p0380 - Answered by a verified Chevy Mechanic Oct 31, 2010 · Chevy / GMC Duramax 01-04. 6 Duramax diesel engines RPO LB7 may have a no charge condition that may be accompanied by DTC P0380 and P0621. Turn on the key but do not ignite the engine. After doing some research online I saw that it could possibly be bad glow plugs or a bad glow plug controller. Have a P0380 Code. Feb 11, 2008 · 2003 GMC 2500HD 6. To fix it, simply replace the ECU. Learn what Glow Plug/Heater Circuit 'A' Malfunction means, location and how to repair? Sep 9, 2008 · I got one of those scanners and it came up with 2 codes1st: P0370 and the second : U1800for the first code it means timing reference resolution signal A malfunctionNow I have asked auto shops and even googled it but I have no idea and could not get an answer for what that meansSo can someone help me?What part are they talking 02 duramax lb7 crew cab efi tuned by. ) Check Engine (Code: P0700) 2. Nov 22, 2013 · code p0380 duramax 6. by mad mehrt » Tue Jan 26, 2016 3:05 am. Problems with the Glow Plug Control Module: 5. Mar 30, 2008 · RPO code YF5 for CA emissions. Started out with a simple "service engine soon" light. Originally the vacuum pump on the belt started squeaking, so I replaced that. 6 duramx deisel. Was buying some stuff from autozone and thought I'd have them use their scanner on it and they pulled the P0380 code as well- and according to their computer, "The PCM has determined that a malfunction exists in the electrical circuit for glow plug/heater circuit "A"". A friend with a code reader helped me get the code ( P0380 " glow plug heater circuit A ). Feb 25, 2021. Feb 11, 2010 · No Overdrive and Code P0700 and P0380 ? Jump to Latest Follow 4K views 8 replies 4 participants last post by 2007 DMAX Feb 19, 2010 Dec 10, 2014 · Codes are back, the P0380 came back right away, while the P0540 came back a few days later. New to the forums but could use some help with a duramax glow plug issue. 4) When shifting to M, will not display current gear. I noticed, my glow plug voltage was at 11. Electrical Issues: 6. but i was looking at 01 2500 durmax to buy and the engine lite was on. 5L, ( "F" Eng #141 cast block) NV4500, crewcab, dually,Diamond Eye 4" Turbo Back Exhaust w/2. It is an easy way to find which glow plugs (s) have failed. 2) Trans fluid temp guage not working. Feb 15, 2014 · DTC Codes b2961 b2610 c0035 c0040 u1000 & P0380. I ve had a check engine light on for a few weeks. Both faults can cause the engine to not start, so it would be the first step. Mar 4, 2020. Jump to Just changed FPR, now P0380 trouble code. Unplug, unbolt, replace, bolt, plug, done. Pulled code and it is U1800. 2L Diesel Engine Fuel System, Air, Exhaust & Emissions Upgrades Top Contributors this Month View All Dec 19, 2016 · So I cleared the engine codes for the P0380 for the glow plugs and tryed to start it again. May 28, 2020 · 6. 6 Jun 9, 2009 · Chevy / GMC Duramax 01-04. It can mean any one of the glow plugs is out, or the controller is not responding. Easiest and cheapest fix, and more than likely the cause of the codes being thrown. Boise, ID, USA. Hello everyone, hope you all are well. 1996 K3500 6. The PCM or TCM uses the transmission range sensor, also called the inhibitor switch, to determine the position of the shift lever. Idaho rob dsp 5 switch 100rwhp. There are several repairs that can resolve the P0380 fault code. For the past few days, if my truck sits for a couple days, it wont start without a jump. P0380 code. See full list on automasterx. Follow it and you will sort through the issue. Jus bought a 2002 gmc sierra 2500hd equip with the 6. EFI Live by ATP. Again, this is a great place to start diagnosing your P0700 codes for 2001-2004. Nov 8, 2013 · Glow plug/ P0380. #143. The RPO code can be found on the large sticker in the glove box. P0380 Glow Plug Code; Am I Covered? Jump to Latest Follow Hey Everyone! Jul 8, 2013 · 01-04. If the Glow plug of cylinder no 8 is faulty or part of the main issue, you will see the code P0678. The NON-California trucks can only detect if the glow plus are getting power to them. The P0380 code is a standard OBD-II trouble code suggesting an issue within the glow plug heater circuit. Mar 26, 2013 · Chevy / GMC Duramax 01-04. My first recommendation would be to diagnosed the faults stored in the system. Jan 27, 2016 · 1. My truck will crank however will not start. It feels sluggish to me but its my first duramax, maybe my expectations were a little high, how ever I came from a 6. So I'm getting the P0380 code for my glow plugs and have gone through testing each glow plug with a test light and all of them tested fine. 01-04. PCM Malfunction: How to Fix P0380 Duramax Code [A Complete 6 Steps Guide]: 1. Step 4: Fix ECU. Is this a good enough test for checking those relays? Jul 5, 2016 · DTC P0380 starts on pg. Following published diagnostics for DTC P0621 or a no charge condition may lead to unnecessary generator or ECM replacement. 5 LB7 Forums. The P0404 code keeps coming back. 2) Checked resistance from glow plug end of wire up to plug that goes in controller every wire tested fine and no shorts between wires. It smoked a little Jul 7, 2010 · Constant p0101 and p0380 codes and crappy mileage! Jump to Latest Follow 4K views 6 replies 4 participants last post by f419sr1 Aug 3, 2010 Dec 29, 2015 · I notice gears 1-3 are rough in shifting however 4-6 are fine. The cause of this code can be attributed to faulty glow plugs or a malfunctioning control module. 1. An engine usually has one glow plug per cylinder. I took out the EGR and cooler, cleaned both out. It takes two consecutive failures to set the DTC and it takes 3 consecutive ignition cycles when the diagnostic runs for the DTC to be Oct 13, 2014 · 3/4tonfun. Faulty Glow Plugs. I turn the key on, I can hear the relay switches, and power The P0380 Duramax code occurs when there is an issue with the glow plug control module, which can result in difficulty starting the engine, misfiring, or a rough idle. – Replacing a defective glow plug timer/modul. "3" in the third character position in a DTC indicates that the ignition system or misfire is experiencing a malfunction. Go through all your grounds as well for good measures. 6 LB7 code P0380. I'm getting code P0380 which is indicative of an issue in the glow plug system. 33 nitto trail grapplers moto metal matte black 18x9 -12 off set 2 inch blocks and level kit oh and its got 615,000original bearings and tranny and motor all rotela T oil Jun 21, 2023 · The P0380 Duramax code is a common issue among diesel engines. P0380 GLOW PLUGS. ) Step-2: Check the Transmission Fluid Level and Condition. The P0380 code can be caused by a bad glow plug 2002 chevy 2500HD 6. #3 · May 12, 2017 (Edited) P0540 code ECM detects voltage on the IAH circuit when the relay is commanded OFF, or incorrect voltage when the relay is commanded on, a P0540 DTC is set. ) "Park Assist Off" Message. Mine started @ 10 degrees with that code. Aug 28, 2016 · 01-04. If it looks burnt or has particles in it, you’ll need to replace it. Electrical issues / bad. I would start with checking if your fuel system has prime. Yours should be federal, delivered to Iowa, unless it was dealer traded from another region. . 2003 GMC sierra duramax 6. The truck had been running fine before I put it away for a weekend. 5L . Can take care of the P0380 but need help with P1404. Source: ColinOFlynn. Make sure to also check for leaks while you’re at it. 2002 chevy duramax farm truck that I have had 14 years. Jan 26, 2016 · 2002 chevy 2500HD 6. The guy I bought my truck from said that they already replaced the Jun 21, 2023 · The P0380 Duramax code is a common issue among diesel engines. Like. It has 75000 miles on the odo. Next, check the transmission fluid level and condition. There is no power lost while the service engine light is on but never the less I want it to be correct. The solution is relatively simple The common fix of this P1093 code can be done by fuel system priming, diesel tank replacement, or the frequent replacing/cleaning up of the fuel injector nozzle or nozzles. Im confussed and need help on why I have two codes now after replacing it and some helpful trouble shooting tips if you have them. I was reading trough some thread about p0700 and its a trany code, more likely trani sloping enough to throw the truck into limp mode. Over time, glow plug heating elements deteriorate and cause inefficient heating during cold starts. Nov 5, 2011 · Its been pretty cold in Alberta the last few mornings and the truck is starting like shit, and its never done this before. and the foot pedal will become unresponsive. 5 LB7 Duramax Powertrain Just changed FPR, now P0380 trouble code. Apr 16, 2019 · Repair Information for P0380 code. I do not know what to do about this code, its not showing up as a CEL, however I know its there. I shut truck off and started it again and the check engine light was no longer on the dash but the code was still coming up on my monitor. Thanks for your help and insight, need to get this taken care of. jc1843. The low oil level sensor is a basic 2 pin hookup in the drivers side of the pan, and it could be as simple as the metal Nov 11, 2010 · 2003 2500HD LT, CCSB, LB7, EFI tuned by IdahoRob and installed by GOS Performance, Edge CS Insight, AFE intake, 5" center dump exhaust, 8" MBRP tip, 6" Pro-Comp lift, Fox dual resevoirs shock hoops, 35" Toyo M/T's, 20" chrome Diamo 8's, AMP research electric running boards, 55w 8000K HID highs/lows/fogs, All-on mod, roll up tonneau cover, tinted, whited-out. – Repairing damaged wires or loose, rusty connections, open or reduced to the glow plug “A”. So i scanned the codes and all that came up was p0380. I have 165000 miles on her. I recall reading something about a faulty wif sensor causing a no start , p0370 condition when plugged in . My truck continues to throw codes p0380 and p0540 after I replaced my injectors, glow plugs, control module. i do not have a scan tool that will control the relay on/off as the GM manual recommends for further evaluation. 6 LB7 DTC Code P0380 Ok is it the Glow Plugs or the Module or relay, I do not have a scan tool, however I can read the … read more. 2. 6L LB7 motor with California emissions. Aug 29, 2014 · P0380 need help fixing!! Hey guys I have a 2004 LB7 Duramax. The controller is "plug and play". #2. NE1 for North East (same/similar as CA). Its having a glow plug issue with a P0380 code. If it receives signals that indicate two different gear positions at the same time for more than 30 seconds P0708 will be set. Something to note however, when I was attempting to diagnose my problem. 5inch turbo back magnaflow. FE9 for federal emissions. Check Glow Plug Resistance: 3. 5 LB7 Duramax Powertrain. Feb 24, 2021 · 3,681. It basically signifies that your vehicle’s glow plug heater circuit ‘A’ has malfunctioned. $180 for a glow plug control module that did not fix my problem. Apr 22, 2016 · It throws a P0380 immediately after clearing with one turn of the ignition on (not even starting the truck). Scan the truck for engine codes and it was throwing the 2 engine codes which were both "Air intake heater code P0540" which I figured it would because it had the bad relay in for that. 02 LB7 PPE stg5/5 star Dual pumps EFI Live v2 Industrial Injection Sep 16, 2005 · Glo Plug Heater Modual P0380 Malfunction I have an 02 Duramax that threw me that same code just a few days ago. And I HIGHLY doubt it would cause your low oil pressure oil level problems. Sep 5, 2014 · 190K views 9 years ago. Can anyone help me with the part number of the generic relay for the controller. I got the delete plug from Merchant for about $40 shipped. All 8 glow plugs were replaced about just over a year ago. Nov 7, 2016 · Torque Converter Chatter. That recently through the P0380 code. I have gotten an occasional P0540 Intake Air heater code more with old controller. 2004 GMC 2500HD CREW CAB SHORT BED 4X4 AT LB7 A forum community dedicated to Chevy and GMC Duramax diesel owners and Sep 8, 2020 · Hey yall. 6 " glow plug heater curcuit A". P0380 code and starting issues! Jump to Latest Follow How to Fix the P0380 Fault Code. Vocational, Technical or Tra 1,912 satisfied customers. Code is P0380. This thing houses only a s … read more Apr 17, 2018 · Diag of a p0380 on duramax 6. Sep 27, 2021 · I've got a 2003 2500hd with the 6. ei tq uv tv uo hh bf nl bi kp