Pcm power relay - When it comes to heating systems, maximizing comfort and savings is a top priority for homeowners. One effective way to achieve this is by using Erie Boiler Zone Relay controls. Be...

 
A transmission relay is usually located in the power distribution box under the hood on the driver’s side of the vehicle. It is responsible for sending signals to the transmission .... Shipt tip

Some of the symptoms of a bad powertrain control module are. 1) Illuminated check engine light. The check engine light only turns on if the ECM ( Engine control module ) is analyzing the data it receives not up to standards. 2) Intermittent cylinder misfires. The crankshaft position sensor, for example, relies on the condition of the ECU so ... A: Powertrain Control Module (PCM) Power Relay A: Introduction Yes No GO to A2 . GO to A3 . Yes No GO to A3 . REPAIR as necessary. REFER to the Workshop Manual Section 414-00, Charging System. CLEAR the DTCs. REPEAT the self-test. Yes No GO to A4 . INSTALL a new PCM Power Relay. CLEAR the DTCs. REPEAT the self-test. Powertrain Control Module ... 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. 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 ... honda power steering problem solutionhonda power relay stuck off solutionpower relay locationfault code p1567 fixfault code 34-05 fixfault code c1850 fixfa...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...FORD EDGE ENGINE COMPUTER RELAY LOCATION REPLACEMENT. ECU PCM DME FUSEIf the Engine Computer ECU PCM does not work and you are trying to find where the Engin...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. On this episode of Fear No Fix, Chris and ChrisFix team up to diagnose a PCM Relay issue and replace it in a 5.4L Ford F-150 (model years 2004-2008).Symptoms... 1. 2000-2001: Daytime Running Lamps Diode. 1998: Anti-Lock Brakes Indicator Diode. 1999: Not Used. 2. Electronic Engine Controls Diode. Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercury Mountaineer (1997, 1998, 2000, 2001).ford4life76 Discussion starter. 139 posts · Joined 2012. #3 · Apr 19, 2013. as far as the grounds are concerned and batt. connections. all looks great. 2001 F350 7.3 Dp f6,air dog II, htt BBturbo, 200/100 hybrids,6637,Foil delete,CCV,5" exhaust, built tranny. 4" Lift 37" toyo m/t, Mile marker Hubs. F.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; … Standard Ignition 30 Amp 5 Terminal Multi-Function Relay - RY30. Part #: RY30. Line: STD. Check Vehicle Fit. Powertrain Control Module (Pcm) Relay. Limited Lifetime Warranty. Terminal Type: Blade. 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... KL15 RELAY POWER TRAIN CONTROL MODULE RELAY LOCATION FORD FOCUS MK3 2012 2013 2014 2015 2016 2017 2018In this video we will show you how to replace the relay...New to the forum, and excited to be here! I have a 2008 F350 (6.4 model) and cannot connect with the PCM via scanner. Through troubleshooting, I have discovered the PCM is also not powering on (Relay 53 not getting close signal) If I jump Relay 53, the TCM powers on but this tells me I'm not getting a signal from the PCM to activate this relay.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 P0685 code indicates a problem with the ECM/PCM power relay control circuit. The ECM/PCM (Engine Control Module/Powertrain Control Module) is responsible for controlling various functions of the vehicle, including the engine and transmission. The power relay control circuit is a vital part of this system, as it provides power to the ECM/PCM.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.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...The fifth wire is the power relay sense circuit. It is used by the PCM to monitor power relay voltage. If the PCM detects an open power relay sense circuit, a code P0688 will be stored and a malfunction indicator lamp (MIL) may be illuminated. A typical PCM powertrain control module, opened up:To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Notice. Before replacing fuses check that the key has been removed from the ignition and that all the services …The 2000 Ford Explorer has 2 different fuse boxes: Passenger compartment fuse panel diagram. Power distribution box diagram. Ford Explorer fuse box diagrams change across years, pick the right year of your vehicle: Passenger compartment fuse panel. Type.Advertisement The power plant produces three different phases of AC power simultaneously, and the three phases are offset 120 degrees from each other. There are four wires coming o...What Does Code P0685 Mean? OBD II fault code P0685 is a generic code that is defined as “ECM/PCM power relay -circuit open”, and is set when the PCM (Powertrain Control Module) detects that its own power supply has failed, or if it detects a low voltage in the circuit that supplies it with power. Note that this code only applies to ...So, for clarification with diagram in view Pin 18 to Pin 52 = Wake Up signal from BCM Primary (Lazy Circuit) that is killing all power to Lights etc. Run Start Relay - Secondary Power, From Key Cycle - Powers the PCM (ISP-R) Pin 64 Pin 64 - Allows / Triggers the Ground to the PCM Power Relay (PCM - Pin 25) Normal Operation = Wake …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 ...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.None of the Battery Junction Box fuses powering the Fuel Pump Relay 20A #19, IDM Relay 30A #27, and PCM #24 fuses are blown. With the IDM module disconnected, we've verified 12V is present at pin#14 on the IDM connector with the ignition key ON, so I assume the PCM and its IDM relay control signal (either 0-.25V, 4.6-5V, or 12V ??) from PCM pin ...04/22/2024. If you’ve got a P0690 code related to high voltage in the ECM/PCM power relay sense circuit, you need to act fast to avoid ECM power troubles affecting your vehicle. Check fuses, relays, and voltages with a diagnostic scanner and DVOM to locate the issue accurately. Symptoms like delays in starting or engine problems could signal ...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.When it comes to automotive repairs, the term “rebuilt PCM” is often thrown around. But what exactly does it mean? In this article, we will dive into the basics of a rebuilt PCM an...Order Ford F150 Relay - Powertrain Control Module online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.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 .Step 1- Disconnect the battery. Figure 2. Disconnect battery. Disconnect the negative (black) cable of your battery. Step 2 - Locate the PCM. Figure 3. PCM location. Open your hood, locate the PCM, and record the numbers written on it.Check engine light on dash ecm/pcm power relay code: P068B00 READ ME - iOS Notifications - How To Enable - Guide. Check engine light on dash ecm/pcm power relay code: P068B00. By kacluk 3 July, 2023 in Skoda Superb Mk III (2015 - 2023) Share More sharing options... Followers 1. Recommended Posts. kacluk. DTC P2510 stands for “ECM/PCM Power Relay Sense Circuit Range/Performance,” and it’s logged when the vehicle exhibits signs of a no-start or hard starting condition. Code P2510 is usually caused by PCM relay failure, wiring issues, and in rare cases, PCM failure. The most common symptoms of P2510 include a lit check engine light, no-start ... The PCM (powertrain control module) receives data about the vehicle’s operating conditions from various areas in the system. In order to work properly, the PCM is supplied with power by a relay, which uses a battery voltage signal, a ground signal, and an ignition switch input signal. The voltage in the relay coil control circuit is normally low. Step 1- Disconnect the battery. Figure 2. Disconnect battery. Disconnect the negative (black) cable of your battery. Step 2 - Locate the PCM. Figure 3. PCM location. Open your hood, locate the PCM, and record the numbers written on it.Fuel pump testing at the CCRM: Pin 5 is output power to the pump. Pin 11 is battery power to the FP relay. Pin 13 is ignition input to energize the relay. Pin 18 should show ground when the pump is on. Testing here needs to be careful since the ground pulse to the relay goes away after the Prime-out. Good luck.An investor's buying power is equivalent to the money that you have in your cash account with your broker and the loan value of the securities held in your margin account. The type...6.4 Powerstroke pcm/Tcm diagnosing and troublesPOWERSTROKECUSTOMS.COM877-331 …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.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 … 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 today’s fast-paced world of logistics, having access to efficient and reliable load board apps is essential for truck drivers and transportation companies. One such app that has...Technical Description of OBD-II Trouble CodeThe circuit controlling the ECM/PCM Power Relay is openWhat does that signify?This diagnostic trouble code (DTC) is a generic powertrain code that is applicable to all vehicles manufactured from 1996 onwards (Honda, VW, Ford, Dodge, Chrysler, Acura, Audi, GM, etc.).Although it is a generic code, the specific causes may vary […]6.4 Powerstroke pcm/Tcm diagnosing and troublesPOWERSTROKECUSTOMS.COM877-331 …Feb 29, 2024. #2. If you have tuned it, then that is a software change to the PCM, if you remove power. Via Battery Disconnect, Fuse Pull or Relay pull it's still going to hold the Tune. But if you look at the (Engine Bay) Fuse box: Fuse 7 = PCM Power and just to the (Left) of Fuse 7 is the PCM Power Relay.The P0685 code indicates a problem with the ECM/PCM power relay control circuit. The ECM/PCM (Engine Control Module/Powertrain Control Module) is responsible for controlling various functions of the vehicle, including the engine and transmission. The power relay control circuit is a vital part of this system, as it provides power to the ECM/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...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...P2510 Code: Causes and fixes, ecm/pcm power relay sense circuit range/performance. If your car has the OBD-II, then this code problem is something your vehicle can suffer. Of course, cars created by manufacturers within the year 1996 till this present moment are no exception. You’ll get the P2510 code when the engine control … 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 . Check the power relay: The P068A code can be caused by a faulty power relay. Use a multimeter to check the power relay’s resistance and continuity. If the power relay is faulty, replace it with a new one. Inspect the ECM/PCM: If the above steps do not resolve the issue, inspect the ECM/PCM for any damage or corrosion.As the world’s largest online retailer, Amazon has revolutionized the way we shop. But it’s not just consumers who benefit from Amazon’s services. The company also provides logisti... If a new or known-good relay is used and the circuit still isn't working, then you can determine if you need to proceed with further diagnosis and repair. O'Reilly Auto Parts carries brake relays, A/C relays, lighting relays, wiper relays, and more to help keep all of the electrical systems on your vehicle operating safely. Show More. 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 vehicle code lists. Causes for the P2098 code include power control module (PCM) failure, a bad PCM power relay, or faulty PCM electrical wiring.Oct 6, 2008 ... This is simply a alwasy hot ciruit that keeps the power to the PCMs mempry banks. The PCM relay is switched on every time when the ignition is ...In the 2001 Ford F-150, the PCM fuse and relay are located in two separate fuse boxes. In the under-dash fuse box, you’ll find fuse number 2, 20 and 30, which is assigned for the PCM power fuse. In the under-hood fuse box, there is a specific fuse labeled as fuse number 18 is designated for the PCM. Additionally, Relay 304 is …About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Aug 4, 2023 · 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 . Radio capacitor(s), Ignition coil, Powertrain Control Module (PCM) diode, PCM power relay, Auxiliary PCM (APCM) (Diesel engine only) 9: 30: Wiper control module, Windshield wiper motor: 10: 20: Main light switch, Park lamps, License lamp (external lamps), Multi-function switch (flash-to-pass) 11: 15: The PCM power relay or ECM power relay work as a switch and transfer power to the ECM. However, if the ignition key turns off, the switches within the PCM power relay will not receive battery power. As a result, your vehicle will not operate properly. Also, when a PCM relay stays open, it cannot transfer power to the ECM. When you have P0688, it has detected an open circuit. An open circuit is a circuit that has not been completed. It means that no power is flowing through the PCM power relay control circuit to your car or truck’s PCM. When this happens, P0688 will be stored in the PCM’s memory, and the check engine light will come on.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 WorkshopP0689 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 .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 …The PCM relay is a contact relay that provides battery voltage to the powertrain control module (PCM), which is an electronic control unit that controls various engine functions. If the PCM relay is broken, the vehicle will have no power, no ignition, or other problems. Learn how to diagnose and fix the PCM relay with this guide.P0690 Code: ECM/PCM Power Relay Circuit High. P0683 Code: Glow Plug Control Module to PCM Communication Circuit. P0689 Code: ECM/PCM Power Relay Sensor Circuit Low. P2509 Code: PCM Power Input Signal Intermittent. File Under : Maintenance, DIY Tagged With : engine-control-module. Subscribe. Notify ofMay 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, ...Advertisement Skywriting dates back to World War I, when England's Royal Air Force (RAF) used it in military operations. Sources report multiple applications, including forming a c...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 .’04: PCM 4×4 power: 10 ’05-’07: Battery feed for overhead power point: 10 ’08: Power rail: 21: 15: Cluster keep alive power: 22: 10: Delayed accessory power for audio, power door lock switch and moonroof switch illumination: 23: 10: RH low beam headlamp: 24: 15: Battery saver power for demand lamps, Flex fuel (’08) 25: 10: LH low ...A relay switch, or simply a relay, is a small electromechanical device that controls a pair of movable contacts or circuit parts, moving from an open to a closed position and vice ...P0687 is a diagnostic trouble code (DTC) for "ECM/PCM Power Relay Control 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 .Here is a more detailed list of the signs of a bad or failing powertrain control module to look for: 1. A Check Engine Light. The first sign that your PCM is having … 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 ... Other Names: Fuel Pump Relay, HVAC Blower Motor Relay, Horn Relay, Starter Relay, Accessory Power Relay, Powertrain Control Module Relay, Window... More Names Replaces: FOAZ-14N089-A, GU5Z-14N089-GThe 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...In the world of high-fidelity audio systems, PCM (Pulse Code Modulation) is a widely used method for audio encoding and decoding. PCM is a digital representation of analog signals ... Shop Volkswagen Passat Accessory Power Relay. Powertrain Control Module (PCM) Relay. AC. ENGINE ENGINE, COMPARTMENT - OEM Volkswagen Part # 1K0906381 (1K0-906-381) ’04: PCM 4×4 power: 10 ’05-’07: Battery feed for overhead power point: 10 ’08: Power rail: 21: 15: Cluster keep alive power: 22: 10: Delayed accessory power for audio, power door lock switch and moonroof switch illumination: 23: 10: RH low beam headlamp: 24: 15: Battery saver power for demand lamps, Flex fuel (’08) 25: 10: LH low ...The #2 5amp relay is according to the owners guide F-150/250 1999 model year is the Powertrain Control Module (PCM) Cluster. When I turned the truck off last night after installing a new relay I look this morning relay clicking and all electric was off including the Pats light, checked my battery, 12.67vdc.Aug 20, 2016 ... 2012 Renegade 800r with *P0686 ECM/PCM Power Relay Ctrl Circ Low ... My 2012 renegade 800 has been throwing this code for a while and now it won't ...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.Diagnostic code for P068A (Active/Static) ECM/PCM Power Relay. De-Energized Performance - Too Early. I have been trying to locate J271, which I believe is the power relay in question. The way I am looking at it, if it. had been the battery, then it would not have started after multiple tries.

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 …. Harrison county remc

pcm power relay

Power Train Control Module (PCM) Power Relay, Coil-on -Plugs, Radio Noise Capacitator, Passive Anti-theft System (PATS) 9 ... DTC P2510 stands for “ECM/PCM Power Relay Sense Circuit Range/Performance,” and it’s logged when the vehicle exhibits signs of a no-start or hard starting condition. Code P2510 is usually caused by PCM relay failure, wiring issues, and in rare cases, PCM failure. The most common symptoms of P2510 include a lit check engine light, no-start ... Conclusion. P0685 is usually caused by a bad relay or the circuits running to the relay. Good luck fixing your Ford F350. P0685 is a somewhat rare OBDII trouble code. It's a general code, so it has the same meaning for the Ford F350 as any other vehicle. It indicates that the circuit that provides power to the PCM is not functioning properly.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 locations should match. Most places will not accept a module as a return item once it has been plugged in.request of each device and system, the power supply is automatically disconnected (self-shutdown function). The PCM power is disconnected by controlling PGM-FI Main Relay 1. During a normal PCM shutdown, the shutdown process is executed by the CPU, PGM-FI Main Relay 1 is turned off, and the voltage to the PCM is turned off to shut …Jul 21, 2017 · OBD II fault code P0685 is a generic code that is defined as “ECM/PCM power relay -circuit open”, and is set when the PCM (Powertrain Control Module) detects that its own power supply has failed, or if it detects a low voltage in the circuit that supplies it with power. Note that this code only applies to applications that use a relay to ... The P0690 fault code refers to the Electronic Control Module (ECM) Power Relay Sense Circuit being high. This means that the ECM is detecting a high voltage in the power relay sense circuit. The powertrain relay is a normally open relay that is held in the open position by spring tension. Battery positive voltage is supplied directly to the ...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 .Technical description and explained code P068A. If your OBD-II equipped vehicle has stored code P068A. This means that the engine/transmission control module (ECM / PCM) has detected a fault. Which is related to the procedure of de-energizing the relay supplying voltage to the ECM / PCM.In the 2000 Ford F-150, the PCM fuse and relay are located in two separate fuse boxes. In the under-dash fuse box, you’ll find fuse number 2, 20 and 30, which is assigned for the PCM power fuse. In the under-hood fuse box, there is a specific fuse labeled as fuse number 18 is designated for the PCM. Additionally, Relay 304 is assigned to the ...P0688 ECM/PCM Power Relay Sense. I am trying to fix an issue with my 2010 Challenger SRT. The car currently has a 426 in it with a Vortec and a custom tune. 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, but then wouldn't. Save on Powertrain Control Module Relay at Advance Auto Parts. Buy online, pick up in-store in 30 minutes. .

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