P305f engine code

What Does the P305F Chevrolet Code Mean? ChatAC AutoCodes.com AI Chat What does this mean? What are the Possible Causes of the DTC P305F Chevrolet? NOTE: The …

P305F Code: Meaning, Causes, and Symptoms | OBD2 Codes. P305F – Dual Battery Control Module Performance . P305F Possible Symptoms . Engine Light …Jul 18, 2023 · If it didn't break apart it may be wiring to the connector. Check that and the other things repairman54 pointed toward at engine-codes. The P305F is also common, usually the main battery, aux battery, or positive fuse block/DBCM related. Check HERE. For the P0455 I didn't even see another hit on gen8. I'd focus on P2645 first. Buy Now!New Rack & Pinion Assembly from 1AAuto.com http://1aau.to/ia/1ASTG000101A Auto shows you how to repair, install , fix, change or replace your front s...What is the Cost to Diagnose the Code P305E Chevrolet? Labor: 1.0. The cost to diagnose the P305E 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.What is the Cost to Diagnose the Code P16CF? Labor: 1.0. The cost to diagnose the P16CF 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.B0017 Chevrolet 13,904 Views. Passenger Frontal Deployment Loop Open. B0018 Chevrolet 7,844 Views. Passenger Frontal Deployment Loop Voltage Out of Range. B0019 Chevrolet 📷 17,522 Views. Passenger Instrument Panel Air Bag Deployment Loop Stage 1. B001A Chevrolet 📷 11,509 Views.Dec 14, 2019 · Go to Engine-Codes.com and put in your code. It will explain how the system works and give you a few things to check before changing the dual battery module which may be your issue. "some suffer from insanity, I choose to enjoy it" John '15 1LT 2.5 - '16 Equinox LTZ 3.6 AWD - '23 Silverado LTZ 6.2 - '20 Traverse High Country AWD Ski Doo's ... If it varies beyond 2 percent, the Monitor will set a P0305 code and illuminate the Check Engine Light. If there is more than a 10 percent variance, the Check Engine Light will blink or pulse in a steady manner to indicate that a harmful Catalytic Converter misfire is occurring. When diagnosing a P0305 code, it is important to record the freeze ...

When it comes to understanding your vehicle’s capabilities and making informed decisions about maintenance and upgrades, knowing your engine size is crucial. The Vehicle Identification Number (VIN) is a unique code assigned to every vehicle...Meaning. If your car's computer displays the P219A code, there is an issue with the air-to-fuel ratio. An essential part of your engine's combustion process is the air-fuel ratio. It establishes how much fuel and air are combined before they enter the combustion chamber. A range of issues, including decreased performance, higher emissions, and ...Apr 29, 2021 · JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals. Check engine light for 2015 chevy impala code P305F. Stay on. Had work done this morning new lock for trunk - Answered by a verified Chevy Mechanic. Yes, a vacuum leak can allow air into the engine in excess, which would create an erratic idle and set the P0507 code. Because the air-fuel mixture is monitored in the combustion chamber, any excessive leak of air is going to alert the computer. The larger the leak is, the more issues you may have with the idle.I think you want this: P305F Check Engine Code There is a bulletin and some videos of interest. P305F is often the module inside the positive battery fuse block when not the batteries or connections. P305F is often the module inside the positive battery fuse block when not the batteries or connections.I took my 15 Chevy Malibu with check engine light on and radio turning off when it would go to auto/Stop code was p305f battery wires and ground look good they replaced a fuse block located on top of battery and changed a connector and installed a new pigtail I really don't know what all this means but it might help someone with this code I just...P305F is an OBD-II Code that refers to Dual Battery Control Module Performance. Meaning. A P305F code is a manufacturer specific diagnostic trouble code (DTC) and refers to a system uses a dual battery configuration which includes a 12 V primary battery and 12 V auxiliary battery. Here are the most common causes of P0455. How your Malibu’s EVAP system works will depend on the model year and engine type.. Evap System Hose– The EVAP hose carries fuel vapor from the fuel tank to the intake manifold can begin to leak.This will cause the P0455 code. Look for either a tear or in the hose.

The average cost for a Chevrolet Malibu Timing Chain and Gear Set Replacement is between $865 and $986. Labor costs are estimated between $405 and $511 while parts are priced between $461 and $475. Your location and vehicle may affect the price of Timing Chain and Gear Set Replacement.Its a 2012 2.4 with 70k miles the motor blew I want to drop another motor in it. I can do it myself but want to know my best option to get a replacement motor. ... Emissions light came on and autozone gave me the P305f code for the batteries ...Welcome to EngineCodes.net we provide engine codes with OBD/OBD2 systems. OBD systems are found in most vehicles in use today. OBD is an electronic system designed to control engine functions and diagnose engine problems or component failures, as well as minimize emissions. P - Powetrain Codes. View all powertrain codes. Jan 25, 2022 · 2015 Chevy Impala code p305F and minor ticking noise in engine. I replaced the auxiliary battery from another car to which I replaced it before and the light came on again. I still have code p035f on impala. The file shows if you complete steps 1-16 and none fail then step 17 states to replace the module. The reason of P305F OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders. P305F DTC specifically refers to the camshaft (cam) timing. In this case, if the …Sep 26, 2022 · 2015 Malibu Code P305F, clock issue after fix. My check engine light came on. The code showed it was P305F. The dealership said the auxiliary battery wasn't good. It was 7 years old so I wasn't surprised. Dealership replaced it and said everything else was good. I left the dealership, came to a red light and the auto stop turned on.

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In today’s digital age, coding has become an essential skill that opens up a world of opportunities. Whether you’re interested in building websites, developing apps, or even pursuing a career in software engineering, learning how to code is...Technicians may find the diagnostic trouble code (DTC) P305F: Dual Battery Control Module Performance has been set in the Engine Control Module (ECM). There may be …How to fix a Chevrolet P305F Code: Dual Battery Control Module Performance Dual Battery Control Module: https://amzn.to/48wD42RService Information The engine...How To Extract Check Engine Codes? (Step-By-Step) Your check engine light turns on when your OBD system (onboard diagnostics) detects an issue or some malfunction.. However, to figure out why your check engine light is illuminated, you need to extract and read the generated diagnostic trouble code or codes (DTC). To do so, you require an …P305F Check Engine Code Chevrolet Malibu Forums. P305F Check Engine Code Jump to Latest Follow 119701 Views 45 Replies 24 Participants Last post by grico95215 Aug 31 2022 M Malibu Discussion starter Feb 20 2018 Ive replaced my car battery but still an issue Ive had my batteries checked and theyre all good Ive tried erasing the code with the OBD ...

The reason of P305F OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders. P305F DTC specifically refers to the camshaft (cam) timing. In this case, if the …P305F - DUAL BATTERY CONTROL MODULE PERFORMANCE FIXED FAST & EASY - CHEVY MALIBU, CRUZE & MANY MORE!Hey guys! Here we bring you another video!In this video w...P0449 Chevy Malibu. A very common issue with the Chevy Malibu is the P0449 code. This trouble code is a reference number that is given to you when you plug your Malibu into a OBDII scanner. P0449 deals with the evaporative emissions control system. It often appears with, or is related other codes, such as P0420, P0446, and very often P0440.2015 Malibu Code P305F, clock issue after fix. My check engine light came on. The code showed it was P305F. The dealership said the auxiliary battery wasn't good. It was 7 years old so I wasn't surprised. Dealership replaced it and said everything else was good. I left the dealership, came to a red light and the auto stop turned on.What is the Cost to Diagnose the Code P305F Cadillac? Labor: 1.0. The cost to diagnose the P305F Cadillac 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.2015 Malibu Code P305F, clock issue after fix. My check engine light came on. The code showed it was P305F. The dealership said the auxiliary battery wasn't good. It was 7 years old so I wasn't surprised. Dealership replaced it and said everything else was good. I left the dealership, came to a red light and the auto stop turned on.Technicians may find the diagnostic trouble code (DTC) P305F: Dual Battery Control Module Performance has been set in the Engine Control Module (ECM). There may be several different causes of this code setting and before any component replacements, please follow the recommendations below. Recommendation/InstructionsLabor: 1.0 The cost to diagnose the P305F 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. Search for P305F Questions and Answers: Search here →2020. The code p305f meaning on the Chevy Malibu is for dual battery control module performance. This vehicle has two batteries, a primary and a secondary one. The control module is responsible for switching from the first and second one as needed so that one can charge, or so that both can work under heavy load.Get the P305F Chevrolet code diagnosed by a professional: Find a repair shop in your area. This system uses a dual battery configuration which includes the 12 V primary battery and 12 V auxiliary battery. The dual battery control module switches.What is the Cost to Diagnose the Code P219A? Labor: 1.0. The cost to diagnose the P219A 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.P305F and P058D. Hello, I am having issues with my 2015 Chevy Malibu (echotech) 2.4 engine. It has the maintenance light on. I took it to AutoZone and it appears as codes P305 and P058 but they don't know what those codes are for.

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P06DA code - W ith the engine running, w ith the battery voltage above 10.0 volt, t he Powertrain Control Module (PCM) monitors the oil pump solenoid control circuit for an open or short to ground when the oil pump solenoid is commanded on. The circuit is monitored for a short to voltage when the oil pump solenoid is commanded off. Set …P0449 Chevy Malibu. A very common issue with the Chevy Malibu is the P0449 code. This trouble code is a reference number that is given to you when you plug your Malibu into a OBDII scanner. P0449 …P018B code after relocating Fuel Pressure Sensor - 2013 Camaro ZL1 [b]Code: [/b]P018B [b]Car:[/b] 2013 Camaro ZL1 LSA 6.2L [b]Changes:[/b] Relocated the Fuel Pressure sensor for a E85 fuel conversion, had to extend the wires by 3ft to accommodate a high volume fuel filter. [b]Materials:[/b] extended wires using high performance 64 strand copper wire …2015 Malibu Code P305F, clock issue after fix. My check engine light came on. The code showed it was P305F. The dealership said the auxiliary battery wasn't good. It was 7 years old so I wasn't surprised. Dealership replaced it and said everything else was good. I left the dealership, came to a red light and the auto stop turned on.Feb 20, 2018 · Part 2. Edit: I have finally fixed my issue with the check engine light code p305f and it cost a total of $53 I bought it from eBay it even came with a 1 year replacement warranty from square trade for an extra 6 bucks, it was quite easy to replace and only needed a few sockets and a flat head screw driver to complete. Jan 23, 2021 · Conditions for Setting the DTC The Engine Control Module (ECM) identifies that the voltage during engine crank at the IGN input (auxiliary battery voltage) of the ECM is below 8.90 V for 2 out of 3 start events. Action Taken When the DTC Sets P305F is a type B code. Auto-stop is disabled. 2015 Chevy Impala code p305F and minor ticking noise in engine. I replaced the auxiliary battery from another car to which I replaced it before and the light came on again. I still have code p035f on impala. The file shows if you complete steps 1-16 and none fail then step 17 states to replace the module.The Bank 1 dictates the side of the engine with cylinder #1. Because code P0017 deals with the “B” sensor, you are dealing with the exhaust camshaft side. Other codes deal with Bank 2, along with the “A” sensor. Reference the service manual if you need more information about the location.

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What Does the P0456 Code Mean? The P0456 is a generic code stating that the Engine Control Module (ECM) detected a small leak from the evaporative system. This leak was detected during a self-test. For the code to come on, the test must fail two times in a row before the Check Engine Light comes on.If it varies beyond 2 percent, the Monitor will set a P0305 code and illuminate the Check Engine Light. If there is more than a 10 percent variance, the Check Engine Light will blink or pulse in a steady manner to indicate that a harmful Catalytic Converter misfire is occurring. When diagnosing a P0305 code, it is important to record the freeze ...Caterpillar engine fault codes can be read with diagnostic software. This software is available at all reputable mechanics, or it can be purchased for use at home or on the road. There are several types of Caterpillar engine fault codes.Top 25 Engine Codes. Latest 15 Codes Updated. All OBDII Codes. Powertrain (P) Codes. Network (U) Codes. Body (B) Codes. Chassis (C) Codes. AutoCodes.com. Engine-Codes.com.We would like to show you a description here but the site won’t allow us.Oct 3, 2023 · Lead Technician/ now retired. High School or GED. 2,796 satisfied customers. 2015 Malibu 2.5 code P305F Hada. P305F Had auxiliary battery. Checked connections,fuses in engine under hood,had auxiliary barr … read more. 0:00 / 8:28 • Intro How to Fix Chevrolet Malibu P305F Code DanielJaegerFilms 156K subscribers 184K views 8 years ago A high failure rate of the small auxiliary battery in the trunk of the...P305F. Dual Battery Control Module Performance. Learn More. 9/10 P0300. ... P0496 – A code signaling a strange reading from the vacuum flow. Usually, this means that the vehicle’s evaporative emissions system has found an issue with purge flow. ... This shows that the fuel system on the first bank of the engine is performing poorly or a ...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈===== How to Fix P0305 =====Engine Code P0305 Saving Repair P...What Does the P0456 Code Mean? The P0456 is a generic code stating that the Engine Control Module (ECM) detected a small leak from the evaporative system. This leak was detected during a self-test. For the code to come on, the test must fail two times in a row before the Check Engine Light comes on.Feb 18, 2017 · P305F Dual battery isolation performance. When this code set it means the ECM see a lower voltage during cranking , you can have a battery drain and the if it goes below , the start is disabled. If the code clear during the drive , this mean the voltage went to normal. if not , it a very short drive. asked Jan 14, 2018 by Freddy60 (101 points ... Common engine codes for a Dodge Ram are HO2S (heated oxygen sensor), MAF (mass airflow), MAP (manifold absolute pressure), IAT (intake air temperature), ECT (engine coolant temperature) and TP (throttle position). ….

903 views 4 months ago This video shows how I repaired a P305F code on a 2015 Chevy Malibu. This repair also applies to other Chevy Malibu's, Chevrolet, and GMC's with the active battery...Sep 13, 2020 · 2020. The code p305f meaning on the Chevy Malibu is for dual battery control module performance. This vehicle has two batteries, a primary and a secondary one. The control module is responsible for switching from the first and second one as needed so that one can charge, or so that both can work under heavy load. By Nick Peers Using Tumblr, you can create free blogs and share your thoughts and ideas with any number of potential readers. If you wish, you can customize the header HTML code of your blog, which may make it rank higher in search engine r...Common engine codes for a Dodge Ram are HO2S (heated oxygen sensor), MAF (mass airflow), MAP (manifold absolute pressure), IAT (intake air temperature), ECT (engine coolant temperature) and TP (throttle position).The P069E code affects these electronic returnless fuel systems in that most of the root issues are more likely to affect emissions. In any case, codes related to the fuel pump control module, like the engine code P069E, should always be addressed immediately.If it varies beyond 2 percent, the Monitor will set a P0305 code and illuminate the Check Engine Light. If there is more than a 10 percent variance, the Check Engine Light will blink or pulse in a steady manner to indicate that a harmful Catalytic Converter misfire is occurring. When diagnosing a P0305 code, it is important to record the freeze ...Conclusion. In conclusion, the P059F code is a generic trouble code that indicates that there is a problem with the active grille shutters. Therefore, technicians should always check for damaged components and wiring before replacing any parts if at all possible and clear any DTCs after making repairs. P059F is an OBD-II Code that refers to ...This code may give a hint to problem but need to get that code for check engine light to start with. Code will be 4 digit number. P03000, P0420 etc. Need code stored for solution to begin Read full answer. Oct 18, 2014 • 2005 Volkswagen Touareg. 0 helpful. 1 answer.Subject: Diagnostic Tip for DTC P305F Models: 2014-2015 Chevrolet Malibu Equipped with Start/Stop System (RPO KL9) Condition/Concern Technicians may find the diagnostic trouble code (DTC) P305F: Dual Battery Control Module Performance has been set in the Engine Control Module (ECM). P305f engine code, The P069E code affects these electronic returnless fuel systems in that most of the root issues are more likely to affect emissions. In any case, codes related to the fuel pump control module, like the engine code P069E, should always be addressed immediately., How to Fix Chevrolet Malibu P305F Code A high failure rate of the small auxiliary battery in the trunk of the Chevrolet Malibu Eco models is the most common cause of a check engine light associated with the P305F code., campb292 Super Moderator · #6 · Jan 17, 2022. They could certainly be right about the amp leading to the code as P305F is Dual Battery Control Module Performance out of spec. The module manages the transitions between the main and aux battery., The Engine Control Module (ECM) identifies that the voltage during engine crank at the IGN input (auxiliary battery voltage) of the ECM is below 8.90 V for 2 out of 3 start events. Action Taken When the DTC Sets. P305F is a type B code. Auto-stop is disabled. Conditions for Clearing the DTC, Oct 4, 2019 · If you have a 2014 to 2016 Chevrolet Malibu with a Check Engine light on and a code is stored for the Auxiliary Battery then this video is one you need to wa... , The redline of an engine is the maximum rpm value it can handle. Learn about the redline of an engine in this article. Advertisement All engines have a redline, which is the maximum rpm value they can accommodate. Beyond the redline, the en..., A P059F code means that the vehicle’s chassis control module has detected that there is improper air flow seen through one or more of the active grille shutters and when this occurs, a Diagnostic Trouble Code (DTC) is stored and set. Causes. Common causes for this code include: Bad or stuck Active Grille Shutter Motor, What is the Cost to Diagnose the Code C0800 Chevrolet? Labor: 1.0. The cost to diagnose the C0800 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., Dec 14, 2019 · Go to Engine-Codes.com and put in your code. It will explain how the system works and give you a few things to check before changing the dual battery module which may be your issue. "some suffer from insanity, I choose to enjoy it" John '15 1LT 2.5 - '16 Equinox LTZ 3.6 AWD - '23 Silverado LTZ 6.2 - '20 Traverse High Country AWD Ski Doo's ... , How to fix code p305f for 2015 Chevy Malibu. 0 votes . 5.4k views. asked Jun 5, 2018 by Joenavarrete26 (102 points) ... p305f; code; check-engine-light; 1 Answer. 0 votes . answered Nov 8, 2018 by Carguy1 (13.1k points) Hi there, This code indicates an issue with the battery. Here is some info for you. ..., Pry Tool Product Link: http://amzn.to/2bsbwhsWelcome to another episode of DiyCarModz. I’m Jeff and in this video….Here is a quick video to demonstrate how t..., If it didn't break apart it may be wiring to the connector. Check that and the other things repairman54 pointed toward at engine-codes. The P305F is also common, usually the main battery, aux battery, or positive fuse block/DBCM related. Check HERE. For the P0455 I didn't even see another hit on gen8. I'd focus on P2645 first., Nov 2, 2019 · Have 2014 Malubu 2.5 w/ aux battery system. Won't smog, P305F code came up. Replaced aux battery, engine light went off, then came on again. Chev dealer said problem is "balance between the two batter … read more , Kurt Mulling. Lead Technician/ now retired. High School or GED. 2,783 satisfied customers. 2015 Malibu 2.5 code P305F Hada. P305F Had auxiliary battery. Checked connections,fuses in engine under hood,had auxiliary barr … read more., During engine crank, the auxiliary battery is switched in to supply voltage to the vehicle loads (except the starter motor which receives voltage from the primary battery) and the …, P018B code after relocating Fuel Pressure Sensor - 2013 Camaro ZL1 [b]Code: [/b]P018B [b]Car:[/b] 2013 Camaro ZL1 LSA 6.2L [b]Changes:[/b] Relocated the Fuel Pressure sensor for a E85 fuel conversion, had to extend the wires by 3ft to accommodate a high volume fuel filter. [b]Materials:[/b] extended wires using high performance 64 strand copper wire …, Dec 12, 2021 · Thank you for watching our video if you found this video helpful please give us a thumb up and subscribe to our Channel!!If you have any question about anyth... , How to fix code p305f for 2015 Chevy Malibu. 0 votes . 5.4k views. asked Jun 5, 2018 by Joenavarrete26 (102 points) ... p305f; code; check-engine-light; 1 Answer. 0 votes . answered Nov 8, 2018 by Carguy1 (12.7k points) Hi there, This code indicates an issue with the battery. Here is some info for you. ..., Pry Tool Product Link: http://amzn.to/2bsbwhsWelcome to another episode of DiyCarModz. I’m Jeff and in this video….Here is a quick video to demonstrate how t..., Oct 3, 2023 · Lead Technician/ now retired. High School or GED. 2,796 satisfied customers. 2015 Malibu 2.5 code P305F Hada. P305F Had auxiliary battery. Checked connections,fuses in engine under hood,had auxiliary barr … read more. , I have 2014 Chevy Malibu LS 2.5 engine check engine code P16DO Replace intake Cam position actuator valve. I change the valve but the check engine light came back on about 40 miles later. ... I have the check engine light and have the following codes: P16CF, P16D0, and P305F. Part#12662736 was recently replaced, thinking it …, I have the check engine light and have the following codes: P16CF, P16D0, and P305F. Part#12662736 was recently replaced, thinking it would solve the problem, but check engine came back on. What do I … read more, VW Engine Codes. This list shows all Volkswagen engine codes used around the world from 1947 to the late 2000s. This listing is sorted numerically, then alphabetically. Early Beetle and Transporter engines made before 1965 did not have a letter code, but rather just a consecutive number. These are listed here as beginning with ‘1’, even ..., What is the Cost to Diagnose the Code C0800 Chevrolet? Labor: 1.0. The cost to diagnose the C0800 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., Conditions for Setting the DTC The Engine Control Module (ECM) identifies that the voltage during engine crank at the IGN input (auxiliary battery voltage) of the ECM is below 8.90 V for 2 out of 3 start events. Action Taken When the DTC Sets P305F is a type B code. Auto-stop is disabled., =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====nonda Auto DIY Center is the biggest ..., Jan 24, 2023 · Definition: “OBD-II code P305F stands for Dual Battery Control Module Performance.”. A P305F code is a diagnostic trouble code (DTC) that is manufacturer-specific and indicates that a system uses a dual battery configuration with a 12 V primary battery and a 12 V auxiliary battery. Most Chevrolet models, including the Malibu and Impala ... , Feb 20, 2018 · Part 2. Edit: I have finally fixed my issue with the check engine light code p305f and it cost a total of $53 I bought it from eBay it even came with a 1 year replacement warranty from square trade for an extra 6 bucks, it was quite easy to replace and only needed a few sockets and a flat head screw driver to complete. , Jul 28, 2023 · The P0305 code stands for “Cylinder 5 Misfire Detected,” which means the powertrain control module (PCM) has counted enough misfire events on cylinder 5 to store the misfire code. Possible causes for the P0305 code include issues with the ignition system, fuel system, or engine mechanical problems. , If it didn't break apart it may be wiring to the connector. Check that and the other things repairman54 pointed toward at engine-codes. The P305F is also common, usually the main battery, aux battery, or positive fuse block/DBCM related. Check HERE. For the P0455 I didn't even see another hit on gen8. I'd focus on P2645 first., Aug 28, 2018 · JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals. P305f code 2014 Chevrolet Malibu ls. P305f and yes was reset start car light goes off turn car back of and start again - Answered by a verified Chevy Mechanic. , I have the check engine light and have the following codes: P16CF, P16D0, and P305F. Part#12662736 was recently replaced, thinking it would solve the problem, but check engine came back on. What do I … read more, Jun 28, 2022 · The Dual Battery Control Module regulates the voltage when the Powertrain Control Module (PCM) cuts power to the engine. Performance. The secondary battery voltage must be below 8.9 volts for 2 out of 3 engine starts. If it falls below that threshold, P305F will be stored in the PCM’s memory, and the check engine light will come on.