P0641 chevy malibu

When the PCM detects an open circuit in the ‘A’ reference voltage circuit, it stores the P0641 code and may trigger the check engine light on your Chevy Silverado. Keep in mind that the P0641 code is a generic trouble code, which means it applies to all model years of the Chevy Silverado built after for the 1996 model year and up.

Check Engine Light (P0013/14, P0507, C0204, C0561) I have a 2010 Malibu LT 2.4L. Previously had issues where the Traction Off and ESC Off lights would pop up, especially in colder/wet weather. Done some digging and have done some work. Previously replaced MAP sensor and Exhaust Camshaft Position sensor, recently …Check Engine Light (P0013/14, P0507, C0204, C0561) I have a 2010 Malibu LT 2.4L. Previously had issues where the Traction Off and ESC Off lights would pop up, especially in colder/wet weather. Done some digging and have done some work. Previously replaced MAP sensor and Exhaust Camshaft Position sensor, recently …The code P0641 can be triggered by various issues, including: Malfunctioning sensor; Wiring or connection issues; PCM problems; What are the Common Symptoms of the P0641 Code? Keep an eye out for these warning signs if you are dealing with a P0641 code: Check Engine Light is illuminated; Sensor-related performance issues; How to Diagnose the ...Conclusion. In conclusion, the C0242 code is a diagnostic trouble code that refers to a problem with the engine control module and traction control on Chevrolet and related vehicles. The code may be caused by a bad electronic brake control module (EBCM), a bad engine control module ( ECM ), or a poor electrical connection to the EBCM.2016 Chevy Malibu 1LT 1.5T/6-Speed 165k miles 2019 F-150 SuperCrew 5.0L 2022 Mazda CX-5 PP 2.5. Reactions: Doworkscotty. Save Share. Like. Doworkscotty Discussion starterSep 2, 2553 BE ... Home › Chevrolet › Chevrolet Impala ... the code it throws is p0641 which nobody ... Having no major problems with my malibu, I figured chevy was ...

Consider checking for wiring issues in the harness near the cooling fans, especially where it passes by AC lines. Final Fix: The final fix for the issue was to replace the ECM (Engine Control Module) with another one, which resolved the problem. Service case 2: Chevrolet P0641. Service case 3: Chevrolet P0641.Check engine light repair and might be in reduce engine power. Repair is to reprogram ecmCHEVROLET CRUZE SONIC P0365 CAMSHAFT POSITION SENSOR B CIRCUIT OPEN BANK 1 FIX CHEVY CRUZE SONIC, HOLDEN CRUZEIn this video we will show you what causes cod...P0641 code in my 2008 Chevy Silverado. The motor goes in limp mode. I also have code P0122,P0449,P0463. I think my main - Answered by a verified Chevy Mechanic2016 Chevy Malibu 1LT 1.5T/6-Speed 165k miles 2019 F-150 SuperCrew 5.0L 2022 Mazda CX-5 PP 2.5. Reactions: Doworkscotty. Save Share. Like. Doworkscotty Discussion starter

Adress the P0641 code for the ultimate in automotive care. Discover how this code can enhance your driving experience and ensure vehicle's optimal performance. ... Here are some car models that are most likely to be affected by the code P0641: Chevy Impala: The 2006 and 2007 model years of the Chevrolet Impala are known for issues …390. 47K views 5 years ago. we had a customer call with a complaint of car losing power and code being present it was p0641 which is loss of power traction control …It should have a 5v reference. The code indicates it is either too high or too low. Disconnect the pressure sensor and check the voltage to it. It should be between 4.8v and 5.2v. This will help us determine if there is a short to voltage or a short to ground. Also, I attached information below related to this code.Three wires off the PCM are not connecting properly.Get ratings and reviews for the top 11 gutter guard companies in Chevy Chase, MD. Helping you find the best gutter guard companies for the job. Expert Advice On Improving Your Home...P0841 is a relatively common trouble code. While your Chevy Malibu's check engine light will come on, this particular code indicates that there's something wrong with the transmission, specifically the transmission fluid pressure sensor circuit. It's a generic code, so P0841 has the same definition for any vehicle made for the 1996 model …

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When the PCM detects an open circuit in the ‘A’ reference voltage circuit, it stores the P0641 code and may trigger the check engine light on your Chevy Traverse. Keep in mind that the P0641 code is a generic trouble code, which means it applies to all model years of the Chevy Traverse built after for the 1996 model year and up.Step 3: Inspect sensors and wiring harness. Inspect all the sensors associated with the P0641 code, making sure to check for any visible damage, corrosion, or loose connections. Additionally, examine the wiring harness and connectors for signs of wear or disconnections, as these could also contribute to the problem.In some models, a special scanner may be necessary to reset the Malibu airbag light, but in some cases ignition key cycles, the door jamb switch or a jumper wire work to reset the ...Aug 21, 2023 · When the PCM detects an open circuit in the ‘A’ reference voltage circuit, it stores the P0641 code and may trigger the check engine light on your Chevy Orlando. Keep in mind that the P0641 code is a generic trouble code, which means it applies to all model years of the Chevy Orlando built after for the 1996 model year and up. Step 3: Inspect sensors and wiring harness. Inspect all the sensors associated with the P0641 code, making sure to check for any visible damage, corrosion, or loose connections. Additionally, examine the wiring harness and connectors for signs of wear or disconnections, as these could also contribute to the problem.Mar 18, 2564 BE ... In this video I have a look at a 2013 Chevy Impala that has had some issues after hitting a deer. Does that have anything to do with the ...

SALU2 COLEGASThe expansion for a P0641 code on the Chevrolet Impala is Sensor Reference Voltage "A" Circuit Open. Was that as clear as mud OK, so what it's saying is that the powertrain control module (PCM) basically supplies a reference voltage to the various onboard sensors (the same way a desktop computer does to its ports) at, say, 5 volts. The sensors verify this voltage signal in reference to ...Apr 19, 2564 BE ... Comments2 ; Fixing vehicle that dies out. P0641. Oz Mechanics · 76K views ; (Chevy Tahoe) P0641 Shorted 5V Reference 1 Circuit Quick Tips. Eli ...I got this off a silverado forum: [FONT=&quot]"P0641 is a 5 volt reference circuit 1 code. [/FONT] I can tell you from personal experience a P0641 is a nightmare. That 5v reference circuit runs about 12 different sensors. Most of the cases I have work on have turned out to be chafed wires near the ECM.4065 posts · Joined 2012. #2 · Jan 29, 2020. P055B CHEVROLET Meaning. The Intake Camshaft Position Actuator Oil Pressure Sensor, located in the cylinder head, is a 3-wire sensor comprising of a signal circuit, low reference circuit and the 5-volt reference circuit. The Engine Control Module ( ECM) supplies 5 volts to the sensor via the 5-volt ...Labor: 1.0. To diagnose the P0641 Pontiac code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Nov 10, 2018 · November 10, 2018 by Jason. P0341 is a somewhat common OBDII diagnostic code in the Chevy Malibu. It means that there is a Range/Performance problem. In layman terms this means that there is a problem with the signal coming from the Camshaft Position Sensor (CPS). OBDII P0341 means that there is a problem with the Camshaft Position Sensor (CPS ... Still getting code P0641 after having it checked out, the strange thing it will set off code and the next morning when I go to take it back to shop the check engine light and service traction control lights are out and car performance is normal. Reply Like. 03-03-2024, 06:11 PM. # 7. grinder11.The code P0641 can be triggered by various issues, including: Malfunctioning sensor; Wiring or connection issues; PCM problems; What are the Common Symptoms of the P0641 Code? Keep …Web p0141 is a very common obdii code that occurs in the chevy malibu. P0641 P0641 Has Been the Common Denominator of the Recent Issues Putting shifter in l and shifting to highest gear. Web 90K Views 4 Years Ago. One must consider other stored codes before a. The accelerator pedal position sensor tells your throttle body how far to open.Best answer. P0641 5- volts reference 1 circuit. what P0641 is the 5 volt reference 1circuit to certain component on its circuit, circuit 1 are , as listed, Circuit 1 component are APP sensor, a/c pressure sensor, fuel tank pressure sensor , MAP sensor, EOP sensor, camshaft position sensor, If any of these sensor short to power its reference ...

Aug 21, 2023 · Step 4: Test the reference voltage circuit. Next, using a multimeter, test the 5-volt reference circuit to verify if the voltage is out of specification. If the voltage is indeed off, focus on identifying the problematic component within the circuit, as this will likely be the primary cause of the P0641 code.

P0107 is a diagnostic trouble code (DTC) for "Manifold Air Pressure (MAP) Barometric Pressure Sensor Circuit Low Voltage Input Problem". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Code P0641 stands for Sensor Reference Voltage 'A' Circuit Open. The vehicle's computer, the powertrain control module (PCM), supplies a reference voltage to many of the onboard sensors. Typically, this reference signal is 5-Volts. The sensors then verify this voltage signal in accordance with whatever they're measuring and send it back to the PCM. =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====nonda Auto DIY Center is the biggest ...Apr 19, 2021 · =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====nonda Auto DIY Center is the biggest ... Aug 21, 2023 · Step 3: Inspect sensors and wiring harness. Inspect all the sensors associated with the P0641 code, making sure to check for any visible damage, corrosion, or loose connections. Additionally, examine the wiring harness and connectors for signs of wear or disconnections, as these could also contribute to the problem. Reduced Engine Power & P0641 Code. Stabilitrak, traction control, and engine power reduced shown. Truck ran great for 2 months after it underwent everything above. Was driving home from work one day, about 5 minutes into the drive and the truck flashed stabilitrak, traction control, and reduced power.Malibu chevy p0010 Malibu chevrolet. 02 Aug 2023. Q&a: 2009 chevrolet malibu lt 2013 chevy malibu 2.5 p0010 p0011 p015a emission fail Equinox p0411 hose cause causing ajar circled slid cartalk. P0411 Code: Secondary Air Injection Incorrect Flow Detected - In The

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Chevy is an automobile brand that is well-known all over the world. In the United States of America, it is immensely popular. It first appeared in the US market in late 2013 and quickly became popular in 2014. ... Just like in the Chevy Cruze and Malibu, 7e8 in the Chevy Silverado also indicates towards checking the ECM menu item from which the ...DTC P0641 5-Volt Reference 1 Circuit. Conditions for Running the DTC. • DTCs P0601, P0602, P0604, P0606, P1621, and P2610 are not set. • The ignition is in unlock, accessory, run, or crank mode. • The ignition voltage is greater than 5.2 volts. • DTC P0641 runs continuously when the above conditions are met.C0561 Chevrolet Code - System Disabled Information. How to Fix. Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for C0561 Chevrolet Questions and Answers. Possible …greenman. Without knowing which codes it popped I can only speculate but that "engine power reduced" message comes from the throttle actuator control (TAC) system & is often resolved by replacing the throttle body assy. The "service traction" message is set for a long list of problems. It is typically set in response to a primary issue.#1 · Sep 9, 2023 (Edited) UPDATE- I cleared the codes and now every time I check the codes it's just showing the P0192 and the P0641. So from what I've gathered it seems …About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...P0641 Sensor Reference Voltage A Circuit Open. OBD-II Trouble Code Technical Description. Article by. Stephen Darby. ASE Certified Technician. Sensor Reference …The automobile fault code P2227 indicates a problem with the barometric pressure circuit range or performance. The estimated repair time for this fault code is 1.0 hour. The cost of fixing this issue can vary depending on the auto repair shop, but it is common for most shops to charge between $75 and $150 per hour.Malibu chevy p0010 Malibu chevrolet. 02 Aug 2023. Q&a: 2009 chevrolet malibu lt 2013 chevy malibu 2.5 p0010 p0011 p015a emission fail Equinox p0411 hose cause causing ajar circled slid cartalk. P0411 Code: Secondary Air Injection Incorrect Flow Detected - In Thesmokester said: I think I found the real problem. The Troubleshooting chart I have for the code P0641 said to disconnect the Fuel Rail Pressure (FRP) sensor and then check the reference voltage at the Accelerator Pedal Position sensor (APP). I did that and nothing changed, still low voltage. ….

Malibu chevy p0010 Malibu chevrolet. 02 Aug 2023. Q&a: 2009 chevrolet malibu lt 2013 chevy malibu 2.5 p0010 p0011 p015a emission fail Equinox p0411 hose cause causing ajar circled slid cartalk. P0411 Code: Secondary Air Injection Incorrect Flow Detected - In TheEl código de falla P0641 se refiere a la tensión de referencia del sensor A - circuito abierto. Este código indica que hay un problema con la señal de voltaje de referencia que se envía al sensor A en nuestro vehículo. El sensor A es un componente importante que ayuda a medir y controlar diferentes aspectos del funcionamiento del vehículo.Mar 15, 2022 · This 2010 Chevy Impala has a very intermittent glitch that puts the PCM into REDUCED POWER mode. Quite annoying.Each time it throws a P0641 - 5V Reference #1... C0561 Chevrolet Code - System Disabled Information. How to Fix. Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for C0561 Chevrolet Questions and Answers. Possible …Web p0141 is a very common obdii code that occurs in the chevy malibu. P0641 P0641 Has Been the Common Denominator of the Recent Issues Putting shifter in l and shifting to highest gear. Web 90K Views 4 Years Ago. One must consider other stored codes before a. The accelerator pedal position sensor tells your throttle body how far to open.Anyone have this problem - Chevy Malibu Forum: Chevrolet Malibu Forums. Check Details. chevy malibu 2013 "engine power reduced" - YouTube. Check Details. 2007 Escalade Service Stabilitrak & Reduced Power - Code P0641. Check Details. 2014 Chevrolet Malibu - TestDriveNow.com Quick Takes. Check Details. DRL Question... | …The expansion for a P0641 code on the Chevrolet Impala is Sensor Reference Voltage "A" Circuit Open. Was that as clear as mud OK, so what it's saying is that the powertrain control module (PCM) basically supplies a reference voltage to the various onboard sensors (the same way a desktop computer does to its ports) at, say, 5 volts. The sensors verify this voltage signal in reference to ...The antilock braking system in a Chevrolet Malibu may come on when there is a condition in the braking system causing a fault. For instance, the light may come on when there is not...I understand that the P0641 is technically described as Sensor Reference Voltage “A” Circuit Open. This code indicates that a fault has been detected in the sensor reference voltage “A” circuit. The letter “A” isolates a particular area of the circuit more than a particular component or wire.P0651 is a diagnostic trouble code (DTC) for "Sensor Reference Voltage B Circuit Open". 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 . P0641 chevy malibu, Chevrolet is an American icon, known for the Camaro, Corvette, Malibu, Impala and more. Take this quiz to see if you can recognize the most memorable '70s Chevys! Advertisement Adv..., Labor: 1.0. The cost to diagnose the C0242 Chevrolet code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour., Get ratings and reviews for the top 7 home warranty companies in Chevy Chase, MD. Helping you find the best home warranty companies for the job. Expert Advice On Improving Your Hom..., Bulletin No.: PIP5676A Published date: 09/23/2019. Preliminary Information. PIP5676A MIL Due To P06DE and may also have P0521. Models. Brand: Model: Model Years: VIN: Engine: Transmissions: from to Buick Envision 2015 - 2019 All All LCV LTG All Buick LaCrosse 2015 - 2019 All All LHN All Buick Regal 2014 - 2019 All All …, esta falla esta boletinada pero aun así les dejo algunas de las formas que uso para hacer diagnósticos y pruebas en general tomando logia sobre el comportami..., The code P0641 can be triggered by various issues, including: Malfunctioning sensor; Wiring or connection issues; PCM problems; What are the Common Symptoms of the P0641 Code? Keep an eye out for these warning signs if you are dealing with a P0641 code: Check Engine Light is illuminated; Sensor-related performance issues; How to Diagnose the ..., Chevrolet is an American icon, known for the Camaro, Corvette, Malibu, Impala and more. Take this quiz to see if you can recognize the most memorable '70s Chevys! Advertisement Adv..., 1727 posts · Joined 2016. #2 · Aug 23, 2019. A bunch of sensors are all connected via the CAN bus system. The generic code p0641 means there's a problem somewhere in that circuit, but it doesn't really pin point the specific sensor. The problem could be anywhere along the line, including the ECU., Chevrolet Malibu Forums. 269.5K posts 71.8K members Since 2007 Chevy Malibu Forum is the best place for owners of the sedan to connect with the community and discuss MPG, mods, and more. Join now! Show Less . Full Forum Listing. Explore Our Forums. Gen 7 Problems/Service Issues ..., Pueden haber una variedad de motivos detrás de la activación de un código DTC P0641 Chevrolet en un coche. Algunas causas pueden incluir: Sensor defectuoso en el circuito de 5 voltios. Sensor en el arnés del circuito de 5 voltios abierto o en cortocircuito. Sensor en el circuito de 5 voltios con una conexión eléctrica deficiente., Sep 1, 2556 BE ... * The ignition is in Unlock, Accessory, Run, or Crank. * The ignition voltage is more than 5.23 volts. * DTCs P0641 and P0651 run continuously ..., The BARO sensor provides a voltage signal to the ECM relative to the atmospheric pressure changes. The ECM monitors the BARO sensor signal for a voltage outside of the normal range. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the BARO pressure is less than 50 kPa (7.3 psi) or greater than 115 kPa …, The expansion for a P0641 code on the Chevrolet Impala is Sensor Reference Voltage "A" Circuit Open. Was that as clear as mud OK, so what it's saying is that the powertrain control module (PCM) basically supplies a reference voltage to the various onboard sensors (the same way a desktop computer does to its ports) at, say, 5 volts. The sensors verify this voltage signal in reference to ... , To diagnose the P0641 GMC code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour., Lean code p0171 chevy malibu 06P0171 malibu chevy code P0641 chevrolet silverado2008 malibu chevrolet autoevolution 2009. P0013 & p0014 fixed fast & easy 2013-2015 chevy malibu 2.5l replace intake & exhaust camshaft2010 malibu 2.4l p0336, p0315 no tach operation, no crankshaft sensor signal from pcm 2010 chevy …, The Diagnostic Trouble Code (DTC) will be set when the ECM detects a short to voltage or ground on any of the 5 Volt reference circuits for greater than 0.5 s. P0651 Chevrolet Code - 5 Volt Reference 2 Circuit., Fault code P0641 can occur on different vehicles but there are statistics on which brands this occurs most often. Here is a list of some of them: Audi; Cadillac; Chevrolet (Aveo, Cobalt, Cruze, Impala, Silverado, Suburban, Tahoe, TrailBlazer) Daewoo (Gentra) Fiat (Ducato) Ford; GMC (Sierra) Honda (Brio) Hover; Hyundai (Starex) Land Rover ..., Step 3: Inspect sensors and wiring harness. Inspect all the sensors associated with the P0641 code, making sure to check for any visible damage, corrosion, or loose connections. Additionally, examine the wiring harness and connectors for signs of wear or disconnections, as these could also contribute to the problem., P0641 - Sensor Reference Voltage 'A' Circuit/Open. From what I have read, P0641 doesn't necessarily mean TPS. It could be, but it also could be about 4 or 5 other things. Yesterday it did it again and I got P0107, P0106, P0452, P0522, and P0641. Dealer says it is probably only one sensor that is causing all the other codes., Tech Notes. - C0561 71 System Disabled Information Stored Invalid Serial Data Received. - C0561 72 System Disabled Information Stored Alive Counter Incorrect. - C0561 74 System Disabled Information Value of Signal Protection Calculation Incorrect., asked Sep 30, 2017 by Bryan. 2007 Chevrolet Silverado 5.3L with engine code P0641, what part do I Need? Vehicle: 2007 Chevrolet Silverado 5.3L. p0641. chevrolet. silverado., The meaning of fault code P0641 is: Sensor Reference Voltage A Circuit Open. Find out what exactly this means, the symptoms and causes of the code P0641 and how to fix the malfunction. Most viewed car repair videos How to change front wheel bearing on MERCEDES-BENZ M W163 TUTORIAL | AUTODOC 142K views Published on: …, Apr 12, 2565 BE ... Comments · 2010 Traverse Fuel issues Crank no start P0087 p0627 P069E · 2013 Chevy Malibu code PO69E · 2015 Chevrolet Tahoe/Fuel pump contr..., I got this off a silverado forum: [FONT=&quot]"P0641 is a 5 volt reference circuit 1 code. [/FONT] I can tell you from personal experience a P0641 is a nightmare. That 5v reference circuit runs about 12 different sensors. Most of the cases I have work on have turned out to be chafed wires near the ECM., Jan 12, 2024 · Check Details Code p0446 when i pump gas my tank thinks it’s full but it’s not chevy. 2008 silverado p0641 and p0532 intermittent engine reduced power andChevy idle gmc silverado rough p0300 engine p0174 check light فقدان دوسة الوقود بعض الاحيان chevrolet silverado 2007 p0641Silverado p0641 2008 intermittent reduced power. , Lean code p0171 chevy malibu 06P0171 malibu chevy code P0641 chevrolet silverado2008 malibu chevrolet autoevolution 2009. P0013 & p0014 fixed fast & easy 2013-2015 chevy malibu 2.5l replace intake & exhaust camshaft2010 malibu 2.4l p0336, p0315 no tach operation, no crankshaft sensor signal from pcm 2010 chevy malibu lt p0641 and c0242 ..., P0641, P0651, and P0697. These DTCs set when the ECM detects a voltage out of tolerance condition on the 5-volt reference 1, 2 or 3 bus for more than 3 seconds. P0642, P0652, and P0698. These DTCs set when the ECM detects a low voltage condition on the 5-volt reference 1, 2, or 3 bus for more than 3 seconds. P0643, P0653, and P0699., El código de falla P0641 se refiere a la tensión de referencia del sensor A - circuito abierto. Este código indica que hay un problema con la señal de voltaje de referencia que se envía al sensor A en nuestro vehículo. El sensor A es un componente importante que ayuda a medir y controlar diferentes aspectos del funcionamiento del vehículo. , P0641 chevrolet silverado. Cobalt camshaft 95f8 2325 4d742008 silverado p0641 and p0532 intermittent engine reduced power and فقدان دوسة الوقود بعض الاحيان chevrolet silverado 2007 p0641P0641 code 2008 gmc yukon silverado reduced power stored mode sparkys answers. Solved: po641 reduced engine power 07 silveradoGmc yukon stored …, Code P069E Chevrolet Description. The Fuel Pump Control Module uses the serial data network to signal the Engine Control Module that the Fuel Pump Control Module is requesting malfunction indicator lamp (MIL) illumination.A Diagnostic Trouble Code (DTC) is set in the Fuel Pump Control Module, and the request for MIL illumination is sent when …, Zjistěte, co znamená P0641 Referenční napětí snímače "A" Okruh / Otevřeno? cardigital. Domov; Auto-Kódy; Auto-Kódy. P0641 - Referenční napětí snímače "A" / Otevřeno Posted on Duben 2024. Autor: Rosa Flores. Datum Vytvoření: 16 Březen 2021. Datum Aktualizace: 27 Duben 2024. ... P0641 CHEVROLET Referenční napětí 5 V je nesprávné ; P0641 …, Aug 21, 2019 · 1727 posts · Joined 2016. #2 · Aug 23, 2019. A bunch of sensors are all connected via the CAN bus system. The generic code p0641 means there's a problem somewhere in that circuit, but it doesn't really pin point the specific sensor. The problem could be anywhere along the line, including the ECU. , Jan 24, 2556 BE ... P0641 PCM voltage out of tolerance condition on the 5-volt reference circuit. P0642 Sensor Reference Voltage A Circuit Low P0643 Sensor ...