Pcm power relay

P068A ECM/PCM Power Relay de-energized to early. Jump to Latest Follow. 81K views 14 replies 11 participants last post by sick350 Feb 25, 2017. Flyin' Hawaiian Discussion starter. 644 posts · Joined 2008. #1 · Mar 17, 2011. Have a 6.7 that has this code, H&S Tuned, went to start truck just clicked....thought the batteries were toast charged ...

Pcm power relay. Fuse Layout Ford Escape 2013-2019. Cigar lighter (power outlet) fuses are the fuse F61 (Cigar lighter, Power point) in the Instrument panel fuse box, fuses F15 (Front cigar lighter / Power outlet), F17 (Rear power outlet, if …

The automobile fault code P0686 indicates a problem with the Engine Control Module (ECM) power relay. This can result in the engine light being illuminated or the service engine soon warning light appearing. The most common causes of this fault code are a weak battery with low voltage while cranking, a faulty ECM power relay, an open or shorted ...

P0685. Hi Piloteers, I’m having trouble locating which relay I need to replace. My 2008 Pilot EXL is throwing code P0685 “ECM/PCM Power Relay Control Circuit/Open”. My fuses all look OK but I can’t seem to figure out which relay needs replacing. The issue is that occasionally the radio, navigation, and interior electronics cut out at ...Auxiliary relay box 4 is located behind left side of instrument panel. Relay box 5 Ford F150 1999-2003. Auxiliary relay box 5 is located behind right side of instrument panel. Bi-fuel relay module. Bi-fuel relay module is located in left rear of engine compartment. Primary battery fuses (megafuses) F150 1997-1998.If there’s no constant voltage at the connector of power relay, then try to repair/replace the fusible links. If the input supply voltage is present, test the connector pins’ performance on the right side. Less power supply indicates a faulty relay. Test the output circuit if the output voltage of the power supply (PCM) is high.What Is PCM Power Relay? What Is a Power Relay Module ? What Is Reverse Power Relay? Conclusion. What Is a Power Relay? It is a switch that comes with an …Ford E-Series (1998-2001) fuses and relays. In this article, we consider the fourth-generation Ford E-Series / Econoline (first refresh), produced from 1998 to 2001. Here you will find fuse box diagrams of Ford E-Series …Diagnostic trouble code(DTC) P0689 stands for “ECM/PCM Power Relay Sensor Circuit Low.”. The code is set once your vehicle’s computer detects a possible problem with the relay that supplies it with voltage. The PCM is in charge of controlling the powertrain, which includes the engine and transmission. It keeps track of parameters like ...

The powertrain control module is the central module of your vehicle. It receives and processes all the signals sent by the various sensors related to the engine’s powertrain. Besides, it also coordinates all the other modules, like the transmission control module and the body control module, and makes sure they “talk” to each other.P0688 is a relatively rare OBD2 trouble code. It’s a generic code, meaning that it has the same definition for any vehicle made for the 1996 model year and up. This includes the Dodge Ram. The most common causes of P0688 are a bad PCM power relay or a wiring issue between the PCM and the power relay. If your Ram is still running with this ... The engine control module (ECM), also known as the powertrain control module (PCM), is the main computer that controls your engine's performance functions and ensures your vehicle is operating its best. The PCM circuit board is coded with vehicle-specific software that acts as the brain of the engine, telling it how to run and operate properly. Pull the PCM Power Relay from the Battery Junction Box and set it aside. Pull the Blower Motor Relay from the Battery Junction box and insert the pulled relay into the PCM Power Relay position. Reconnect the battery cable. Turn the ignition key to On and see if "CHECK ENGINE" is illuminated. 7. If you've got aging parents, at some point you may have to manage their financial affairs. They'll give you a power of attorney. A handy guide from the government shows you what ...The automobile fault code P068A indicates a problem with the Engine Control Module (ECM) relay or the ECM itself. The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light. The cause of this fault code can be a faulty ECM relay, a faulty ECM, an open or shorted ECM harness, or a poor electrical connection in ...

The power side of the PCM and IDM relay control coils is fed thru fuse 30 which is hot with the key on. If you want to check the ignition switch, turn the key to run and check continuity between terminal B5 and I1. The I1 terminal is the output to the hot in run circuit that feeds fuse #30 thru a red/black wire.Fault code P068A – ECM/PCM power relay de-energized performance – too early. Author AutoNevod Reading 6 min Views 383. Contents. Technical description and explained code P068A; ... Most PCM power circuits are relatively simple and straightforward. When the ignition is turned to the “ON” position, power is applied to the relay. ...Ford Explorer (2002-2005) fuses and relays. In this article, we consider the third-generation Ford Explorer (U152), produced from 2003 to 2005. Here you will find fuse box diagrams of Ford Explorer 2003, 2004 and 2005, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout ...One of the most common symptoms of a faulty ECM/PCM power relay is engine stalling . If your engine stalls while driving or idling, it could be a sign that the …So far I've replaced 2 out of the 5 with the updated relays, the starter relay and ASD relay which should hopefully rectify issue for now. There's either 5 or 6 relays depending on spec and fuel type of the vehicle. Dealer wants £39.50 for 1 30A relay so I'll be ordering more from Alfa Workshop

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P0689 is a diagnostic trouble code (DTC) for "ECM/PCM Power Relay Sense Circuit Low". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 .This article is not directed toward individuals who do not find themselves struggling to embrace a Higher Powe This article is not directed toward individuals who do not find thems...Aug 14, 2015 · It was a Saturday, so they were closed. August 10, 11, 2015, mileage 42,800: Dealership tries to start the truck and it starts right up. The dealership says the computer diagnosed the problem as a bad PCM Relay (Part no. F-F80Z14N089AA). I'm not sure how bad it could be if the truck started before they worked on it. In the end, if you are not getting power to the fuel pump relay, in most cases, it’s either a bad fuse or a faulty ECM. So, that’s where you should start your investigation. Check all the fuses in the cabin fuse …

FORD F150 PCM RELAY, POWER TRAIN RELAY LOCATION REPLACEMENT F 150 ECU RELAY, ECM RELAY 2015 -2017. Free Car Repair. 19.7K …A relay symbol is an image used to denote an electrically operated switch in a schematic diagram. A schematic diagram is a representation of the elements of an electrical system.17. Reaction score. 2. Location. Cypress, TX. I am in need of the schematic for the power distribution block for a 2003 Expedition. The relay labeled as R203, and called the PCM Relay, has now been replaced 3 times. Pin 5 of the relay is melting the plastic of the relay. It has been taking SIX to EIGHT MONTHS months to show any symptoms.Avalanche forward Valeri Nichushkin was placed in Stage 3 of the NHL/NHLPA player assistance program and suspended for a minimum of six months without pay for …Step 1 - Locate the PCM. Locate the PCM and record the module and Strategy Code numbers. Figure 1. Locate the PCM and record the numbers. Step 2 - Check the new module. Purchase the new module based on your findings. Don’t install the new module without comparing it with the existing module. The connectors and mounting …If you've got aging parents, at some point you may have to manage their financial affairs. They'll give you a power of attorney. A handy guide from the government shows you what ...A/C Relay: 3 — Wiper Hi/Lo Relay: 4 — PCM Power Relay: 5 — Fuel Pump Relay: 6 — Starter Relay: 7 — Horn Relay: 8 — Fog Lamp Control Relay: 9 — Blower Motor Relay: 10 — Foglamp Isolation Relay: 11 — Not Used: 12 — Not Used: 13 — Park Lamp/Trailer Tow Relay: 14 — Washer Pump Relay: 1 — RABS Resistor: 1 — RABS Diode: 2 ...The P068A trouble code stands for “ECM/PCM Power Relay De-Energized Performance – Too Early.” This is an uncommon code, and it doesn’t appear on many …Ground for the pcm relay is supplied by the pcm pin 33brn/wht. Fuse 39 supplies power into the relay for both the coil and load (terminal 86 30) which should be hot at all times. Pcm pins 2 4 6 are ground from ground 103. Yes, I have 12v at 76 (12.6ish).Fuse 39 is good and has 12v .Accessory Power Relay. Powertrain Control Module (PCM) Relay. Volkswagen Golf. Genuine Volkswagen Part - 1K0906381 (1K0-906-381). Ships from Carter Volkswagen, …The fault code P0685 in an automobile can be caused by various factors. One possible cause is a weak battery, resulting in low voltage while cranking. Another potential cause is a faulty Engine Control Module (ECM) power relay or an open or shorted ECM power relay harness. Poor electrical connection in the ECM power relay circuit or a blown ECM ...

In the world of digital audio coding, there are various methods available to compress and encode audio data. Two commonly used methods are PCM (Pulse Code Modulation) and DPCM (Dif...

Pivot tables are the quickest and most powerful way for the average person to analyze large datasets. Here’s how they came to be one of the most useful data tools we have. Pivot ta...Accessory Power Relay. Fuel Pump Relay. Powertrain Control Module (PCM) Relay. 2010 Volkswagen Golf. Genuine Volkswagen Part - 191906383C (191-906-383-C, …The OBD-II fault code P068A means that the PCM Power Relay is de-energized too early, causing a variance in voltage and resulting in a hard or no start in co...The ASD relay is located in the Integrated Power Module (IPM), in the engine compartment. Refer to label on PDC cover for relay location. To test the relay see if this helps. When the PCM energizes the ASD and fuel pump relays, terminal 87 connects to terminal 30. This is the... - 2002-2008 Dodge Ram.Aug 14, 2015 · It was a Saturday, so they were closed. August 10, 11, 2015, mileage 42,800: Dealership tries to start the truck and it starts right up. The dealership says the computer diagnosed the problem as a bad PCM Relay (Part no. F-F80Z14N089AA). I'm not sure how bad it could be if the truck started before they worked on it. The automobile fault code P068A indicates a problem with the Engine Control Module (ECM) relay or the ECM itself. The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light. The cause of this fault code can be a faulty ECM relay, a faulty ECM, an open or shorted ECM harness, or a poor electrical connection in ... Power Supply Relay (J271/J317) faulty; Possible Solutions. Check Fuse(s) Check Wiring and/or Connector(s) from/to Power Supply Relay (J271/J317) Check/Replace Power Supply Relay (J271/J317) Special Notes. A weak Battery may set this fault code. Insure the Battery voltage is at least 11.5v. 2009-2014 Audi vehicles with no start issues, please ...Feb 28, 2022 · This DTC also sets when the PCM power relay is de-energized too early.” The code appears in a 2015 Ford Focus ST 2.0L because of the following conditions: PCMRC circuit open; PCM power relay; Low battery voltage; Note: The definition of code P068A can differ according to the vehicle manufacturer. Check the appropriate repair manual or repair ... P0685. Hi Piloteers, I’m having trouble locating which relay I need to replace. My 2008 Pilot EXL is throwing code P0685 “ECM/PCM Power Relay Control Circuit/Open”. My fuses all look OK but I can’t seem to figure out which relay needs replacing. The issue is that occasionally the radio, navigation, and interior electronics cut out at ...

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30A PCM power relay: 3: 20A Fuel system, anti-theft system: 4: 20A Headlamps: 5: 30A ABS system: 6: 30A ABS system: 7: 20A Trailer park LP and trailer stop LP: 8: 30A Battery saver relay and headlamp relay: 9: 50A Blower motor: 10: 30A Power locks, power windows and power: 11: 20A PCM memory and: 12: 50A Air ride control relay: 13:PCM power relay, PDB fuse 27: 10: 60: Auxiliary battery relay (gasoline engine only), PDB fuses 8 and 24: 11: 50: IDM relay (diesel engine only) 12: 60: Engine compartment fuses 3, 5 and 26, 23 (diesel) Instrument panel fuses 26 and 32, PCM start relay: 13: 50: Blower motor relay (blower motor) 14: 30* 40 Shop Volkswagen Passat Accessory Power Relay. Powertrain Control Module (PCM) Relay. AC. ENGINE ENGINE, COMPARTMENT - OEM Volkswagen Part # 1K0906381 (1K0-906-381) Import Direct Ignition 20 Amp 4 Terminal Multi-Purpose Relay - 25-0183. Shop for the best Powertrain Control Module Relay for your vehicle, and you can place your order online …A stored code P0885 simply means that the PCM has detected an open condition in the power relay control circuit for the transmission control module (TCM). Open could be translated as disconnected or cut for diagnostic purposes. Usually the TCM is integrated into a single housing with the engine control module (ECM).The factory PMC power relay may malfunction due to engine heat or a broken wire, replace it with a factory-style PCM power relay! The PCM power relay has factory connections for quick and easy installation! Product Note. This product comes with 5 pins instead of the OEM 4 pins. The 5th pin is unused and works correctly in 86-93 Mustangs.This PCM Computer Control Relay can be used to replace the current PCM power relay in 1986-1993 Mustangs. Replacing a faulty one with this new one can relieve your Mustang of several issues, including a decrease in gas mileage or the ability to start the car. This is a simple plug-in part that is made to replicate the original.Jun 1, 2018 · 14152 posts · Joined 2008. #2 · Jun 1, 2018. Oh, that's not a good code to have. The service manual does say to check for loose terminals at the "IGP line connectors" so it means checking the IGP (Power Source) for the PCM which is Connector B, terminal number B3, a yellow/black wire at the PCM. Unfortunately, if the power feed to the PCM is ... This can indicate a problem with the relay or its circuit. Possible causes of the P0688 code include a defective PCM power relay, a faulty PCM, and a blown fuse or fusible link. Some symptoms of the P0688 code include an illuminated check engine light, the vehicle refusing to start, and the vehicle stalling.The engine control module (ECM), also known as the powertrain control module (PCM), is the main computer that controls your engine's performance functions and ensures your vehicle is operating its best. The PCM circuit board is coded with vehicle-specific software that acts as the brain of the engine, telling it how to run and operate properly.The P2509 code is related to the power input signal of the Engine Control Module (ECM)Powertrain Control Module (PCM). When the ignition switch is turned on, the battery voltage is applied to the ECMPCM through the main relay. If the ECMPCM power input is out of factory specifications, the ECMPCM will set the OBDII code, indicating an ... ….

“Half of what we will teach you in medical school is right, and half of it is wrong – the problem is we don’t know which is which.” This quote, or some variation of it, is relayed ...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Fuel pump relay: R5 : Horn relay: R6 : PCM power relay . Power distribution box 1999-2003 Ford F150. Fuse box diagram (1999 model year). Assignment of the fuses (1999). Fuse/Relay. Location. Fuse Amp Rating. Description. 1. 25A * Power Point. 2. 30A* Powertrain Control Module. 3. 30A* Headlamps/Autolamps. 4. 15 A*. Air Suspension. 5.The OBD-II fault code P068A means that the PCM Power Relay is de-energized too early, causing a variance in voltage and resulting in a hard or no start in co...Learn what the PCM relay is, how it works, and what causes and symptoms of a failing PCM relay. Find out how to diagnose and fix the error code P0690 and othe…About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Jan 7, 2016 · A bad PCM-power relay may cause the vehicle to crank, but not start, or sometimes not even crank at all. 3. Battery Drain or Dead Battery. The final bad ECM relay symptom is a battery drain or dead battery. If the relay shorts it can leave power on to the computer, even when the vehicle is turned off. This will place a parasitic drain on the ... Ford Mechanic: Ricardo Hohl. yes there are two powers both are battery powers there is one ground provided by the computer and this ground has to turn of when you turn the key to off position. Ask Your Own Ford Question. with the relay out the ground goes away, i am going to check to see if it goes away with the relay in, chances are it wont ...Power Train Control Module (PCM) Power Relay, Coil-on -Plugs, Radio Noise Capacitator, Passive Anti-theft System (PATS) 9--10: 10: Rear Window Defrost: 11--12--13: 5: Radio: 14: 10: Traction Control Switch, Anti-lock Brakes (ABS), Instrument Cluster: 15: 15: Pcm power relay, Ideal Power News: This is the News-site for the company Ideal Power on Markets Insider Indices Commodities Currencies Stocks, This can indicate a problem with the relay or its circuit. Possible causes of the P0688 code include a defective PCM power relay, a faulty PCM, and a blown fuse or fusible link. Some symptoms of the P0688 code include an illuminated check engine light, the vehicle refusing to start, and the vehicle stalling., P0690 is a diagnostic trouble code (DTC) for "ECM/PCM Power Relay Sense Circuit High". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 ., Fuse Layout Ford Taurus 2000-2007. Cigar lighter (power outlet) fuse in the Ford Taurus is the fuse #13 in the Instrument panel fuse box (2000). 2001-2003 – fuse #13 in the Instrument panel fuse box and fuse #18 in the Engine compartment fuse box. Since 2004 – fuses #25 and #29 in the Instrument panel fuse box. Table of Contents., 17. Reaction score. 2. Location. Cypress, TX. I am in need of the schematic for the power distribution block for a 2003 Expedition. The relay labeled as R203, and called the PCM Relay, has now been replaced 3 times. Pin 5 of the relay is melting the plastic of the relay. It has been taking SIX to EIGHT MONTHS months to show any symptoms., The fifth wire is the power relay sense circuit. It is used by the PCM to monitor power relay voltage. If the PCM detects a low voltage condition on the power relay sense circuit, a code P0689 will be stored and a malfunction indicator lamp (MIL) may be illuminated. A typical PCM powertrain control module, opened up:, Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. 1 (855) 347-2779 · [email protected]. Read FAQ. GET A QUOTE. Chevrolet Silverado 1500 ECM-Power Relay Replacement costs starting from $117. The parts and labor required for this service are ... , When code P068A is stored, it indicates that the engine/powertrain control module (ECM/PCM) has detected a flaw in the de-energizing procedure for the relay that supplies it with voltage. In this case, the relay has de-energized prematurely. The PCM power relay is utilized to safely apply battery voltage to the appropriate PCM circuits., My car have code p0685 ECM/PCM control power relay circuit open, no Epc and engine light the car just crank but don’t start which relay should I replace and the location It’s a golf 5 gti BWA engine. Reply. Gary. 20.10.2022 at 23:35 . Having a problem with my son’s 09 Golf GTI. The passenger headlight isn’t working, then the passenger ..., 16 Ga 20 Ga. Starter Motor Relay. Ford Econoline Fuses Description, Ford Econoline Fuse Location, Ford Club Wagon Fuses Description. Print Page. Location and description of fuses and relay Ford Econoline, Club Wagon with engine 4.9L Truck Six & Windsor, 5.8L Windsor, 7.5L 385 Family or Diesel 7.3L Navistar (E150, E250, E350; …, The fifth wire is the power relay sense circuit. It is used by the PCM to monitor power relay voltage. If the PCM detects a low voltage condition on the power relay sense circuit, a code P0689 will be stored and a malfunction indicator lamp (MIL) may be illuminated. A typical PCM powertrain control module, opened up: , Accessory Power Relay. Fuel Pump Relay. Powertrain Control Module (PCM) Relay. 2010 Volkswagen Golf. Genuine Volkswagen Part - 191906383C (191-906-383-C, …, May 7, 2011 ... The car has been running fine until yesterday when it died without warning on the highway. It would turn over and act like it wanted to start, ..., The automobile fault code P0686 indicates a problem with the Engine Control Module (ECM) power relay. This can result in the engine light being illuminated or the service engine soon warning light appearing. The most common causes of this fault code are a weak battery with low voltage while cranking, a faulty ECM power relay, an open or shorted ... , See full list on cashcarsbuyer.com , Apr 5, 2024 · 09 Jetta Sportwagen 2.5. P0688 ECM/PCM Power Relay Sense Circuit/ Open code. Problem Earlier: Car was starting fine but when I press the accelerator, all of the main electronics in the car cut off ie: dash, power steering, traction control, abs; then come back on 5-10 seconds later. This might randomly happen in regular driving conditions as ... , Windows/Mac/Linux: Vidalia, a free, open-source, cross-platform application, makes setting up and configuring Web proxy tool Tor a snap, allowing you to surf the internet anonymous..., Oct 10, 2022 · FORD F150 PCM RELAY, POWER TRAIN RELAY LOCATION REPLACEMENT F 150 ECU RELAY, ECM RELAY 2015 2016 201If you need to find the PCM relay, ECU relay, ECM, Powert... , If you own a home or business that relies on a boiler system for heating, you know how important it is to have a reliable and efficient setup. One crucial component of any boiler s..., The Audi J271 is different to some VW's and has more terminals. It's also a good idea to check the relay socket wiring to or from the fuse box. P0685 - 17069 (ECM/PCM) Power Supply Relay - J271 - Circuit Open. P0686 - 17070 (ECM/PCM) Power Supply Relay - J271 - Short to Ground. P0687 - 17071 (ECM/PCM) Power Supply Relay …, Accessory Power Relay. Powertrain Control Module (PCM) Relay. Volkswagen Golf. Genuine Volkswagen Part - 1K0906381 (1K0-906-381). Ships from Carter Volkswagen, …, Automatic Shut Down Relay, Oxygen Sensors, Powertrain Control Module (PCM), Fuel Injectors, Ignition Coils, EGR Control Module: 5: 20 or 40: 1994-1995 (20A): Fuel Pump; ... Driver Power Seat Switch, Passenger Power Seat Switch: Relay: R1: Combination Flasher: R2: Heated Seat: Advertisements., CHEVROLET SILVERADO ECU RELAY, ECM RELAY, PCM RELAY LOCATION 2006 2007 2008 2009 2010 2011 2012 2013If you have Chevrolet Silverado / Chevy Silverado and …, Trouble code P068A is defined as ECM/PCM power relay de-energized too early. This code is a generic fault code, meaning it applies to all vehicles equipped with an OBD-II system, especially vehicles manufactured from 1996 to present. Some of the more common brands that have this code include Audi, Cadillac, Chevrolet, Dodge, Ford, Jeep ..., Pull the PCM Power Relay from the Battery Junction Box and set it aside. Pull the Blower Motor Relay from the Battery Junction box and insert the pulled relay into the PCM Power Relay position. Reconnect the battery cable. Turn the ignition key to On and see if "CHECK ENGINE" is illuminated. 7. , Power Train Control Module (PCM) Power Relay, Coil-on -Plugs, Radio Noise Capacitator, Passive Anti-theft System (PATS) 9 ..., I double checked the output side of my pcm relay and IDM relay. Yes, I still have power out of of the pcm relay. No on the IDM, but we talked about the ground for that being controlled by the pcm. I did not re-check the ground and hot pins feeding the PCM last night. So tonight, I'll pull fuses and check both sides of them. I'll pull the PCM ..., FORD FIESTA ENGINE FUSE RELAY POWER TRAIN MK7 ST 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Our Website: http://mechaniclifestyle.comIf your Ford Fie..., P2510 is a diagnostic trouble code (DTC) for "ECM/PCM Power Relay Sense Circuit Range/Performance". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic ..., Ford TSB 19-2294. For 2017-2019 F-Super Duty and 2016-2019 Explorer/Police Interceptor Utility vehicles, a terminal repair kit for pins 1 and 2 of the powertrain control module (PCM) power relay inside of the battery junction box (BJB) is now available. It is no longer necessary to replace the entire BJB., Get some tips to help diagnose a failed module quickly and accurately. When you get a PCM communications trouble code on your IDS scan tool, start here.Diag..., Shop Volkswagen Passat Accessory Power Relay. Powertrain Control Module (PCM) Relay. AC. ENGINE ENGINE, COMPARTMENT - OEM Volkswagen Part # 1K0906381 (1K0-906-381) , The fault code P0685 in an automobile can be caused by various factors. One possible cause is a weak battery, resulting in low voltage while cranking. Another potential cause is a faulty Engine Control Module (ECM) power relay or an open or shorted ECM power relay harness. Poor electrical connection in the ECM power relay circuit or a blown ECM ...