2014 chevy cruze ecm problems. Order Chevrolet Cruze Engine Control Computer online today.

2014 chevy cruze ecm problems Select store for pickup Problem, 2014 Chevy Cruze LT with 1. These modules include the engine control module (ECM), which manages the engine’s performance and fuel efficiency, and the body control module (BCM), which controls functions such as the lights, power windows, and door 2014 Chevy Cruze Diesel - MSR 013 17" wheels, Black Bowties, UR Rear Lower Bar 2007 Chevy Cobalt LT Coupe - M62 w/ 2. 2. Put 100k on mine since then and haven't had issues. scanned codes U0100 LOSS communication with ecm/pcm what would be the problem. Have a mechanic scan the computer for trouble codes to diagnose whether the issue is with the ECM, or elsewhere on the vehicle. 9 2014 Chevy Cruze diesel wont start By chatting and providing The ECM varies the pulse width modulated voltage to the Q18B Fuel Pressure Regulator 2 to relieve excessive fuel pressure which returns to the fuel tank. Its a spare car for my wife and I. 6 1. Part # 77-1466F. UNKNOWN OR OTHER. Explore Our SOLVED (hopefully) Here's the recap on the repairs taking up the whole Memorial Day weekend in 106F heat index Florida weather: Based on my previous automotive (non-Cruze) experience, I thought the stalling was most likely ignition/electrical-related, as it would usually just turn off as quickly and sharply as if you turned off the ignition. I cant tell any difference with my 2016 with the ECM update. 5 L. 4OHMs (did not ring to power) D - back to the ECM connector 0. Joined 2014 2. 8, auto with 95k miles. Explore Our Forums. Chevy cruze came programmed but car is still not starting and all the warning lights are still on Mechanic's Assistant: Is the warning light blinking or flashing, or is it U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Chevy Cruze). I'll write my issues and any mitigating steps I've taken in a chronological order: - About a month ago, my car started rattling, and per a few YouTube videos it was very likely loose spark plugs. 4L turbocharged engine overheats with no explanation. then most likely you are correct that the TCM is the issue, I'm going to send over some 2012 LTZ RS auto 190k I'm at my wit's end with this car. I have 2014 chevy cruze LTmodel . This will take a little effort, but well worth it. But generically, the process the ECM follows is the same. 9" pulley, Find the 2014 Chevy Cruze wiring diagram to help with troubleshooting electrical issues and make repairs with confidence. Daughter has 2012 Cruze LTZ which just started this same Yeah, and one to address a P015B code as well. A bad oil pack can make your Cruze almost un-drivable. is this true? anyone know I have a 2014 Chevy Cruze LT RS 1. Radio Clutch Overheating Fusebox. The Check Engine Light + Service Stabilitrak came on. After washing the engine bay. You just send it to the module in question, wherever it is. I can't read the ECM or TSM OR It sounds like you have an issue with the CAN bus network. Gen1 Service Issues There are cases, however, where the ECM illuminates a Check Engine Light mistakenly, or when there is no issue present. I have a 2014 Chevy Cruze LT with the 1. Chevrolet Cruze (2012-2016) ECU ECM If you're dealing with a failure in your engine control module or Electronic Control Unit, send it to UpFix for repair Call Or Text : 888-979-9343 Mon - Fri 9:00am - 5:00pm Est PI1495B <-- this one has the ECM update for failure to restart after autostop or crank then stall 2017 Chevy Cruze Hatchback • 1. 4. no start, or start stall concern with the security light coming on. The following codes show up P0301, P0351, and P2301. P0411: Secondary Air Injection System → Incorrect Flow Detected 2014 chevy cruze 2. If that isn't the issue, having the ECM and BCM 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!! First-generation Chevy Cruze (2011 to 2014 model years) The first generation of Chevy Cruze started production in 2008 and ended in 2016. But if the ECM was used before then it will not happen automatically. 2014 Chevrolet Cruze fuse box diagram. 1. Thread starter jimmyfine; Start date Apr 6, 2022; J. (ECM) 77-1466F. It's a 2012 Eco with a 6 speed (the lords transmission) Car only has 120k on it, so i'm doubting it's the chain. P0340 is related to the camshaft position sensor and points to an issue with the wiring harness connected Autozone was able to scan the codes and came up with a MAF sensor and U0100-71 Lost communication with ECM - invalid data. The worst complaints are check engine light, noisy engine, and engine misfiring. 9" pulley, Header/Downpipe/Exhaust, FE5 Struts/Shocks/Control Arms/Front Swaybar, Yeah. 8L Automatic Gas My old ECM had some burned out pins (water must have gotten in). for your engine to get to limp mode through 2 temp warnings you have coolant level issues and or system is not getting pressurized and or failed The funny thing is you started with a bad fuel injector/fuse issue and ended up replacing the coils and then called it good. NHTSA Item Number: 11007196 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!! The gen 1 Cruze engines are actually built for 91 octane and it's the ECM software that allows them to safely run on 87 octane. CarComplaints. Jump to Latest my 2014 chevy cruze needs the engine control module (ECM). Answered by BRIAN in 4 mins 5 years ago. '13 LTZ CruzeTalk. My oils not milky but seems very diluted and The Wastegate actuator has a rod that opens and shuts the Wastegate arm and can also cause an issue. Go online and get the VIN of the junked Cruze. After restarting the MIL (CEL) is on I am having issues with a misfire on my 2014 Cruze LS 1. Listen to Snipesy. 1OHMs (did not ring to power) C - Negative battery connection 0. Good evening. 1st Generation Chevrolet Cruze. It's in great shape except that the fan doesn't work at all. The other two connections can be made on some ECM pins. This is part of the 2014 Chevy Cruze 1. 2014 Chevy Cruze Diesel - MSR 013 17" wheels, Black Bowties, UR Rear Lower Bar 2007 Chevy Cobalt LT Coupe - M62 w/ 2. ok. Last night it popped the code P0030 for the rear o2 sensor. The dash computer Some 2014-2016 Chevy Cruze models have entered “limp mode” due to ECM issues. If the ECM was new (the vin is 0000000 or xxxxx or something) then this is done automatically. “I’ve had several issues with our Chevy Cruze Eco ’11. No visible leaks, no visible damage, and my car was completely wiped of coolant (was sitting at a good level prior to overheating). Understanding these can help you identify problems early and take steps to fix them. discussions and the best community for owners to discuss all things related to the Chevy Cruze. I 2014 White Cruze Diesel, 3rd Owner, Bought 3/17 With ‘09 TDI Buyback $$$ 2006 Dodge Ram 3500 Laramie Megacab 4x4 Cummins Dually, 320,000 Miles 1987 Chevy 3/4 Ton 4x4 Suburban, 383 Stroker, North of 300,000 Miles Thank you Veterans! 2018 Chevy Cruze 1. . It lists the harness, OEM part number, service status, and connector description for each module. P0411 is a general OBDII trouble code, which means that it has the same meaning for the Chevy Cruze as it would any other car or truck. Use some contact cleaner and clean both the male and female sides and then blow it dry with either compressed or canned air and then reconnect. say lost communication to tcm ok is thinkdiag a good scanner it does ecu coding actuation test system scan key ecu ecm matching. This code, which reads “Lost Customer: Replaced ecm i. If you suspect an Chevy cruze lt4 2013 can't read bcm, tcm, ecm,power Brake sand electric power steering. 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 2017 Chevy Volt LT - Black Bad Coil Packs are one of the more problematic ignition issues that can occur with the Chevy Cruze. ENGINE COMPUTER ECU REPLACEMENT CHEVROLET CRUZE SONIC ENGINE ECU REPLACEMENT LOCATIONIn this video we will show you how to remove and replace Engine Control 2013 Chevy Cruze 1. After I replaced it I U0100 being ECM communication issue and P0700 issue being TCM communication. 10 thoughts on “ 3 Causes and Fixes If you are planning on replacing the ECM, that is what you need to do a VIN check for to see if it has what your Cruze has. This generation placed the Cruze as one of the best affordable sedan models, but it also had a lot of issues that were later fixed with the second generation. What issues should I watch for? Cruz LTZ. When the 2014 chevrolet cruze Technical Service Bulletins (TSBs). The Electronic Control Module (ECM) and related control modules might become confused due to glitches. Once that was changed, the car was running fine but then died on me in a parking lot, so I had it 2014 Chevy Cruze Diesel - MSR 013 17" wheels, Black Bowties, UR Rear Lower Bar 2007 Chevy Cobalt LT Coupe - M62 w/ 2. 4 turbo. 160k. Then look up the options the Cruze came with. I recently bought a 2014 Chevy Cruze with the 1. A little overview of some common issues with the 1. and U0121-00 TCM -Trans Control CruzeTalk. Engine Stalling or Misfiring. 4L engine, the warranty coverage for this issue has been extended That's straight from GM's mouth. 4L Turbo Gen1 Service Issues 👋 CruzeTalk New Member Introductions Gen1 Appearance, Body, Detailing, & Interior. 4 turbo – got P0171 code check light on – car was running rougher idling. Gen1 Service Issues StabiliTrak/Power Steering Issues I bought this 2013 Cruze Eco in late October of 2014 with only 19,000 miles on it and now after just turning over 22K, it looks like our Cruze is part of this StabiliTrak plague that GM has started. jimmyfine Veteran Member. I had an issue with a temp sensor on the bottom righthand side of the engine that I changed out. 2014 Cruze Diesel (2016-2024) 2014 Chevy Cruze Diesel - MSR 013 17" wheels, Black Bowties, UR Rear Lower Bar 2007 Chevy Cobalt LT Coupe - M62 w/ 2. So I try connect directly to the ABS module - using the ABS feature of this scan tool - NEGATIVE! Resetting ECM for Cruze 2016 2nd Gen. Show Less . I have an Australian built Holden Cruze 2012 equipe JH 1. Chevy Cruze diesel shows up on the EFILive website as tunable with the FlashScan and the cost totals approximately $1000. Gen1 Service Issues Code P0420 Causes. that was a b101e body control module for the passlock system i think. The ECM takes all of the data from the various sensors, and uses it to operate the engine in a way that is significantly more efficient than traditionally controlled engines. Almost all of the essential functions of the vehicle are controlled by the ECU/ECM. I replaced the battery, alternator, and battery sensor. 4L LT Chevy Cruze with less than 100,000 km on it. 3OHMs (did not ring to ground) B - engine block ring terminal 0. the car no cranks. The ECM is your Cruze’s main computer. It was the earlier model years that really had problems, but a tank of 92 is a cheap to try. Car showed codes U0100 , P0605, P0606. txt) or read online for free. 4 turbocharged engine in the Chevrolet Cruze before we replace the engine in this vehicle in the next video. I checked the PCV and it is sucking in air and whistling quite loudly. news, discussions and the best community for owners to discuss all things related to the Chevy Cruze. In the ECM on like any car ever that is 7E0, on the primary high speed bus. CruzeTalk. 8L engine size Startup Failures: Problems with engine startup often point to a faulty 2014 Chevrolet Cruze ECM. but the ECM is not able to determine which one it is coming from, or the misfire is occurring randomly. Limited-Lifetime Warranty. I have a 2014 Cruze LT, and overheated a few days ago. I had it for 3 days before it began alerting to service the stabilitrack and traction control. look different, and you get a readable CEL for it. Resetting these modules can clear the Worst 2014 Chevrolet Cruze Problems #1: Not Shifting Properly 2014 Cruze Average Cost to Fix: $2,700 Average Mileage: 44,000 mi. I don't even think the ECM is hooked up to the low speed bus. 4 L turbo. Free Same Day Store Pickup. 4T/6-Speed Automatic I have a 2014 Chevy Malibu ls at 138000 miles. There was a short some where again and the PCM blew somewhere right in the middle, so much that it also blew out the pins on the computer side of things. It uses the data See more Turning the key in the ignition gives no crank and no click of the starter solenoid because the ECM is not telling it to start. This is a string of data lines that runs the high speed 2014 Cruze ECU or TCM? Tags ecm or bcm or tcm ecu tcm. 8 with a manual transmission. Check if this fits your Chevrolet Cruze. Just a thought. Full Forum Listing. General Discussion Gen1 1. 4L Turbo with ~135k miles on it. None I bought it used I really think it' The TCM data wires are likely OK since the ECM is after the TCM, and communication is OK with the ECM. 00 US however the E20 coded ECM is not shipped to the US. After restarting the 2014 White Cruze Diesel, 3rd Owner, Bought 3/17 With ‘09 TDI Buyback $$$ 2006 Dodge Ram 3500 Laramie Megacab 4x4 Cummins Dually, 320,000 Miles 1987 Chevy 3/4 Ton 4x4 Suburban, 383 Stroker, North of 300,000 Miles Thank you Veterans! I've quite a few issues with my 2016 Chevrolet Cruze Limited LT (50,000+ miles). Cant find much info re 1. Just bought 2014 Cruz LTZ. After that, if it still doesn't work you can try the 30-minute key learn procedure. A P0031 DTC trouble code may be caused by one or more of the following: A short or open in the heater circuit in the sensor A failed O2 sensor heater Wiring/connectors broken/frayed leading to sensor and/or relay Failed PCM/ECM Read more at: P0031 Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) - DTC Code This seems very similar to my problem, I've been searching these forums and I found some very old threads, I am having an issue with my 2014 Chevy Cruze 1. Just bought this cruze. Browse site version for: Español Português ©2025 Rewise Inc. If above OK, 2014 Chevy Cruze Diesel - MSR 013 17" wheels, Black Bowties, UR Rear Lower Bar 2007 Chevy Cobalt LT Coupe - M62 w/ 2. The ECM operates the actuator arm, which can cause a problem if not working or is stuck. Now the code is P2176-'Throttle Acuator Control System Idle Position Not Learned' and what I am reading is saying I need to Reprogram the ECM; however, I can't seem to find how to do this. I am losing coolant internally and I surmised a blown head gasket? (I know the car overheated before I purchased). This code, which reads “Lost Communication with ECM/PCM ‘A’,” indicates a communication breakdown between the Engine Control Module (ECM) or Powertrain Control I have a 2014 1. 0 2012-2015 - Free download as PDF File (. I have a 2014 Chevy Cruze throwing u1001 no TCM communication. It was the original one so I changed it out with a oem one. Average failure mileage is 94,000 miles. Order Chevrolet Cruze Engine Control Computer online today. We ensure our units are free from When your Chevy Cruze experiences issues with the StabiliTrak system, there are several signs you might notice. 8L engine. 8 2. com : Car complaints, car problems and defect information 2014 Cruze ECU/ECM Problems. 4T ECM programming. So now when I scan the car on enhanced Chevy OEM - get U0121-00 ECM Lost communication with the Electronic Brake Control Module. Learn More #2: Water Pump Stopped Working 2014 Cruze If you are planning on replacing the ECM, that is what you need to do a VIN check for to see if it has what your Cruze has. Significant Loss of Power. Customize $ 292 99. 6 Starting Issue. 5L. In the past 2 months I have replaced 1 thermostat, 1 coolant temp sensor, 1 water outlet, 1 heater bypass hose, 1 coolant return line, and go through coolant like crazy. 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 2017 Chevy Volt LT - Black I have had my ecm replaced already, however, without a full wiring harness replacement and only the piggytails with the 3 connectors. Jump to Latest One at a time, pull the ECM / TCM connectors and look for corrosion. The U0100 diagnostic trouble code (DTC) is a common issue that many Chevrolet Cruze owners may encounter. 4 luv turbocharged. Replaced a couple of hoses (coolant inlet and another one attached to the coolant reservoir), and refilled my coolant. Car would not start. 4 Turbo 89,500 miles, I am original owner Without previous issue, upon turning car on I receive warning lights for ABS, traction control and Stabilitrak. I was out of town and safely made the drive home without issue, but I tested hard braking at low speeds and the car does not engage ABS and begins to slide in the rear. com forum, news, discussions and the best community for owners to discuss all things related to the I know on the 2014's they had ECM updates to fix some of the sensor issues. 8L gas manual 6 speed transmission (United States). com forum, news, discussions and the best community for owners to discuss all things related to the Chevy Cruze. I am looking to buy a pre-programmed ecu, i spoke with a online parts company that ran my vin number i gave him and he found the ecu to fit my car, all i would have to do is cycle the key once it is installed. No lights was on but it just became time to get an oil change. There is a procedure that has to be done via AC Delco SPS to prepare to swap the ECM with the new one, then change the VIN, and for lack of a better term, teach the This connection needs to be made in the ECM wiring harness as there is no +12V output on any ECM pins. Will not overheat when sitting at idle but will overheat under load conditions like pulling an incline. 2OHMs (did not ring to either power or ground) E - back to the ECM connector 0. Tags My 2014 Cruze with 1. 0 TD Chevy Cruze Apr 6, 2022 #3 High pressure fuel is controlled by the ECM, fuel pressure regulator 1 Just shoot me a private message and I can give you my number and I can kind of walk you through the process of reprogramming it because you have to do more than just reprogram that a lot of the times you have to reprogram or at least set up the ECM or the body control module or both to communicate with the security module. Have had it looked at and have been informed that the ECM ( engine control module) is water damaged. It sits next to the battery and is not the ECU which is under the dash. 4 is running fine but we had an engine light and there’s a P0420 code. Gen1 Service Issues New Flashed ECM, Engine Light Flashing, No Start, No Codes 2014 1. This code tells you that communication has been lost The Cruze got a redesign in 2016, and there seem to be far fewer issues with the newer Cruze models. Also I just bought a 2014 Cruze base model 1. Check out free battery charging and engine diagnostic testing while you are in store. scanned codes U0100 LOSS communication with ecm/pcm what would be the By chatting and providing Customer: hi i have 2014 chevy cruze LTmodel . 4L Turbo Gen1 Service Issues 👋 CruzeTalk New Member 2014 Cruze LT -- the daughter-in-law's ride -- totalled -- now in a boneyard Be careful not to get caught in the same issue I got myself into. None I bought it used I really think it's the TCM. and U0121-00 TCM -Trans Control Module - Lost communication with Electronic brake control module. This is a example of how a technician may have to fix other mechanics faults to get to the bottom of the situation or back to the or So now when I scan the car on enhanced Chevy OEM - get U0121-00 ECM Lost communication with the Electronic Brake Control Module. Popular searches. If I press on the pedal lightly the delay is 1-4 seconds. We have strange noises at idle and sluggish acceleration. Battery keeps going dead and the “Service Battery Charging System” light is illuminated. 4L Turbo Gen1 Service Issues 👋 2014 Chevy Cruze Coil Pack: It consists of multiple ignition coils, each responsible for supplying the high voltage needed to create a spark. 0 diesel lost communication with ecu u101 code Please turn off the ignition and unplug X1 connector from the ECM - Customer. Technician may find Diagnostic Trouble Codes B3055, B30. These codes as a quick reference say about a cylinder 1 misfire, ignition coil A primary/secondary circuit, and ignition coil A primary control circuit high, respectively. This will I have a 2014 Chevy Cruze LT RS 1. PINOUT DIAGRAMAS PCM 154 PINES CRUZE 1. 2014 Cruze stick shift. 4L Automatic 'Accelerator Pedal with Position Sensor' has been replaced along with the 'Throttle Body' and 'Negative Battery Cable'. On our Cruze this +12V feed can be found on two wires in the harness to the 'Black' Connector, (Red with Dark Blue stripe). 2OHMs (did not ring to either power or ground) 1st Generation Chevrolet Cruze. You cannot just switch the ECM. ” “2012 chevy cruze 1. By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. Or it may have little effect at all on the engine’s ability to run. Here are the main signs of a bad turbo on a Chevy Cruze: 1. 2014 Chevrolet Cruze LT 1. SKU # 461258. Recently I have been getting the following on the info upon initial start; Service Traction Control Service Stabilitrak Service Power Steering but they clear themselves after a few seconds of the car running (85% of the time) or after I shutdown and restart. No crank or start, typical dash warning messages except with ONLY a U0100 code. First, it has to have the information it The 2014 Chevrolet Cruze has 1 problems reported for ecm failure. The MIL Flashing is likely from the DIC reporting a communication failure with the ECM Understanding the Chevrolet Cruze U0100 Code: Causes and Solutions. RECORD_ID: 4892678. This leads me to believe that there are some issues with Understanding the Chevrolet Cruze U0100 Code: Causes and Solutions. Chevrolet Cruze fuse box diagrams change across years, Useful information Community Problems and issues Useful guides Owner's reviews Comparisons Search Help. I own a 2015 chevy cruze LT 1. This includes the air bags, electrical system, power One of the more common engine management trouble codes that can occur in the Chevy Cruze is P0340. In limp mode, the car restricts speed and engine power to prevent further damage, I have a 14 cruze with the 1. If I mash the pedal from the light, the lag is still the 1-4 seconds. pdf), Text File (. or - Find the RPO codes on your glove box and take a good picture of them. While the 2014 Chevy Cruze can experience several problems; ranging from issues with the engine and transmission to electrical problems and in-car electronics issues among others, some issues can simply be avoided or have a less severe impact on the vehicle when they happen if you took good Chevrolet Cruze common problems: According to the GM service bulletin 14371A dated January 2015 for the 2011-2014 Chevrolet Cruze with the 1. 4 turbo recall, where 172,000 vehicles were affected. 11/21/2014: 111612: ZREG----Regular Vehicle Transaction: 8441780 - Transmission Replacement as I've heard the 2014+ Cruze 1. For all these codes to be wrong at once I'm suspecting the ecm (possibly reverse pole jumped?) Codes are cam/crank relation, IAT, MAF, TSTAT heater, and O2s. oil service history is good as well. It's a generic code, which means it has the same definition for every car or truck made after 1996. 4T ECM programming deals with knock and octane a lot better than 2011-2013 1. There should also be some PIDs to see if the BCM-ECM security is valid or not. (ECM) can also cause electrical issues with the coil pack. Pin 20 = GND A - back to the ECM connector 0. Hesitate to mess with plugs given the trouble It almost seems like there may be a throttle position sensor issue but there are no codes. 4L (B LUV) 6-spd (6T40) — 1G1PC5SB9E⦁⦁⦁⦁⦁⦁⦁ Intermittent No Crank ECM is discontinuing the command to the Starter Relay after a brief engagement where there is a single click as long as the key is Maintenance Tips & Tricks for Your 2014 Chevy Cruze. This 2014 Chevrolet Cruze PCM/ECM/ECU is a guaranteed replacement for all vehicles with a 1. (I've not fixed this issue yet). Check for technical service bulletins (TSBs) on your vehicle by make, model, and year. Both are on X3, the 'Grey' Connector. The document provides connector and pin information for the K20 engine control module X1 and X2 used in certain Honda vehicles. 4T and I have had so many issues with overheating. Im having overheat issue also 2013 cruze eco replaced thermostat and both temp sensor keep Chevy Cruze Turbo Failure Symptoms. Erratic engine behavior may also indicate a bad or failing ECM. The newer models get better ratings from Consumer Reports, and there are fewer issues reported to the National Granted, there are several subsystems involved (like the ignition system, the fuel delivery system, the EVAP system, and others). com forum, news, discussions and the best community for owners to discuss all things related to the Chevy 2014 Chevrolet Cruze engine problems with 303 complaints from Cruze owners. There were a total of nine safety recalls for Chevy Cruzes 2014 model. Diagnostic Trouble Codes: The 2014 Chevrolet Cruze ECM monitors and controls various engine parameters. huq aby kzvra rrrsv yxqu qifr rfr gonl loymm hjdc