How to fix u0109 code

How to fix u0109 code

Ok. U0109 code: truck cranks fires sometime but wont start u0109 codeU0107 code – what does it mean & how to fix it . According to AllData, both of those indicate loss of communication with the fuel pump controller. Last Tuesday, I had the check engine light come on on my 2015 Canyon SLT crew. 2015 5. Luggage Compartment: F21. #1 · May 16, 2015. I know there is a TSB on it to check connections on the passenger side of the trans as well as the actual FSCM module above the spare tire. in·sane /ɪnˈseɪn/ Show Spelled [in-seyn] Show IPA. If the FPM circuit is fixed at a low or high voltage, the PCM begins to increment a counter. 221 posts · Joined 2019. Description: The PCM monitors the fuel pump monitor (FPM) circuit for the presence of a duty cycled signal. Definition: Lost Communication With Fuel Pump Control Module A. U0109 doesn't necessarily indicate a failure with the Fuel Control Module. P0108. Gently pull the wiring harness (2) up from the rear of the engine (1). The repair time for this code is approximately 1. May 7, 2024 · 2012 chevy Cruze 1. and remember to please post the year/make/model of the vehicle you are working on. – P0606 set in the Fuel Pump. Ram would turnover/crank but not start. of, pertaining to, or characteristic of a person who is mentally deranged: insane actions; an insane asylum. Basically my Sunday driver and went out to drive it over Memorial Day weekend and car would turn over but not start w/CEL. Common Symptoms of U0109 Code. Jul 28, 2014 · One or all of the following codes: – P069E, P0230 or U0109 set. The cost to diagnose the U0109 Mercury code is 1. #4 · Feb 1, 2018. The FPCM supplies and regulates the voltage that goes to the fuel pump and the fuel pump relay. This fix is estimated to take approximately 1. Here are some tips for preventing the code: Inspect your car’s fuel filter and frequently check the fuel pressure. Chevrolet cruze 1. Low power can lead to the U0073 code being Jun 23, 2021 · DTC U0101 stands for “Lost Communication with TCM. Ask Your Own Cadillac Question. The ECM activates P025A and associated codes when it monitors one or multiples conditions outside a specific electrical range within the Fuel Pump Control Module or it's circuit. few days later, weather turned very cold (-25 Celsius). Mar 29, 2020 · U0109 Saturn Code - Lost Communication With Fuel Pump Control Module . The U0109 fault code can affect vehicles of all makes and models, including but not limited to Mercedes-Benz, Hyundai or Cadillac, Ford, Chrysler Dodge, Jeep, Ram GMC, Volkswagen, and Chevrolet. utterly senseless: an insane plan. Likewise, the code P0506 is the result of the vacuum leaks or carbon buildup. Also, a faulty positive crankcase ventilation valve could be the sole cause or part of the problem. Coasted off the side of the road and got towed home. Check the codes and had these two: U0109 - Lost Communications to Fuel Pump Control Module. The U0109 is a Data Bus DTC. It is also one of the most common codes. Need help with diagnosing your trouble code? We can help! Book an appointment with one of our 3,000 RepairPal Certified Shops to get your trouble code diagnosed. Wrap Up. Before attempting to do any repairs, know that the repair processes for OBD-II trouble codes can vary greatly. in the case seal. Aug 27, 2021 · This will help you narrow down your problem behind p069E in any Chevy Impala or Malibu 2013-2018 Oct 16, 2023 · Grab an OBD-II sensor and scan the car. No check engine lights at the time. A faulty TCC solenoid, circuit issues, and valve body problems are common causes of the P0742 code. The estimated repair time for this fault code is 1. 1fmcu0hxbdua99437. have a chevy 2008 tahoe 2wd am getting gm dtc code u0109 (lost comm with fuel pump ctrl mod) P0506 is an OBD-II fault code that indicates a problem with the idle air control (IAC) system. 3. The mechanic will see 2. Inspect for chafed (1), damaged, pinched, open or shorted wiring. REPLACE THE FUEL PUMP CONTROL MODULE AND RETEST FOR DTC. Working with/around such a volatile substance makes it somewhat dangerous to diagnose or repair For example, trouble code P0506 could stem from a vacuum leak or a failed Powertrain control module. The cost of fixing this fault code varies between $75 and $150 per hour, depending on the auto repair shop. Check the FPCM wiring and connector for terminals that look corroded or black from a poor connection. The problem is common in vehicles that May 24, 2021 · In other instances, the PCM stores more codes aside from the P0506. These are the codes I received: P025A - Fuel Pump Module A Control Circuit/Open. The P0742 code stands for “Torque Converter Clutch (TCC) Circuit Stuck On,” which means the powertrain control module (PCM) detected a problem with the TCC circuit, causing the TCC solenoid to fail. Mar 29, 2020 · How to repair U0109 2012 Ford Fusion code Lost Communication With Fuel Pump Control Module The Powertrain Control Module (PCM) monitors the Fuel Pump Monitor (FPM) circuit for the presence of a duty cycled signal. This can be caused by either a mechanical or an electrical problem. When the ECM detects a problem with the IAC system, it sets the P0506 code. Re-evaluate after this repair attempt. It is important to check for more codes and interpret the fault code correctly to ensure proper repair. If the cause of the U0141 code is faulty wiring, you will need to repair or replace the damaged wiring. 7 Hemi threw 2 codes. Diagnostic trouble code (DTC) P025A stands for “Fuel Pump Control Module Circuit/Open. An illuminated check engine light and the Thanks for posting on r/MechanicAdvice!This is just a reminder to review the rules. The first time it worked for about 3 months. Oct 11, 2023 · How to fix a U0073 Code: Control Module Communication Bus "A" Off The U0073 means control modules and CAN Bus are not communicating correctly. Apr 13, 2022 · P018C is an OBD II fault code that stands for “Fuel pressure sensor “B” Circuit Low”. After a few months of the intermittent issue I finally got it to throw a code and it was the U0109 - "Lost Communication With Fuel Pump Control Module". The cost of repair is influenced by the repair time, which is commonly charged between $75 and $150 per hour by most auto Jul 14, 2020 · The video focuses on the basic Ford specific diagnostic error code. Aug 26, 2023 · 2. Okay sounds good. Oct 7, 2018 · Check engine light would come on each time I tried to remote start my 2014 Ford Escape. 11 posts · Joined 2018. A bad ignition switch, circuit problems, and faulty control modules are some of the issues that could trigger the trouble code. aka 442dude on the Acadia forum. This may sound obvious, but check your voltage before you look at anything else. Jul 2, 2020 · Labor: 1. Check Details What is the Cost to Diagnose the Code? Labor: 1. To fix this code, one should visually inspect the related wiring harness and connectors and check for damaged components. Ford Explorer Check Engine Light Code P0506. Went to start ram after short trip (no trouble the first time). Jul 24, 2023 · Using an OBD2 scanner. By following these tips, you can help prevent the U1000 code from appearing and keep your car running smoothly. Keep the PCM software up to date. One of the easiest ways to diagnose the P057C code is to use a scan tool. Apr 30, 2021 · It then drove normally the rest of the way to work. Diagnosing the problem requires a few preliminary checks before you can track down the root cause. Jumped battery with cables from another truck as I thought it was a possible P0100. 2016 PCP Hellcat M6 w/10K miles and garaged all of the time. DTC U010 is This fix will take an estimated repair time of 1. If the P062A code appears, it means that a problem has been found in the fuel pump "A" control circuit. A dead battery, faulty TCM, and data bus issues are the most common causes of a logged U0101 trouble code. A U0101 code indicates that the engine control module (TCM) and other control modules on the vehicle are not communicating with one another. The most common failure is a loss of power or ground. Other factors that may influence the cost Apr 16, 2024 · Understanding the technical aspects of the U0109 code empowers you to navigate the intricacies of the fuel system and electrical connections within your vehicle, paving the way for effective troubleshooting and repair processes. Usually, the FPCM is a stand alone module. It’s closely related to P0230 and may point to issues with the fuel pump relay or wiring. The test fails when the PCM is still not detecting a duty cycled signal on the FPM circuit after a calibrated amount of time. How to fix a U0101 engine code: Lost Communication with TCM (Transmission Control Module)Diagnosing a U0101 can be difficult and time-consuming. U0109 GMC Code - Lost Communication With Fuel Pump Control Module. co 👈=====Engine Code P0103 Saving Repair Parts Aug 10, 2023 · Preventing the P0003 code requires proper maintenance of the fuel volume regulator control circuit. 2019 Acadia SLE2 - 3. P0403. 2 parte P0300 chevrolet Cruze fallo en el motor y consumo de aceite. The most frequent way to connect devices is via the Controller Area Network (CAN) bus. To diagnose the U0109 Ford code, it typically requires 1. Check all the wiring and connectors for damage, shorting, or other problems. Need more information on how to fix the U0109 Saturn code? #GMCYUKON #FPCMHow to find Open Circuit/Fuelpump control module harnessLOst com with Fuel pump control module Aug 16, 2023 · How to prevent the P0628 code. Using a scan tool, you can determine the exact cause of the code and take steps to fix it. #2 · Dec 4, 2022. Once home, I tried starting again, Pulled the following codes: U0109 (Lost connection to Fuel Module), P0171/74 (lean bank 1 and 2) This morning, the truck started fine Jun 26, 2023 · I have a previous thread where I explained my issue with the U0101 code on my 2015 Impala 3. It’s not the most complicated OBDII trouble code to diagnose. Does anyone have any ideas. Found this with a quick search: U0109 Lost Communication with Fuel Pump Control Module (FPCM) Depending on your skill level it may or may not help. When dealing with the U0109 code, identifying common symptoms is key to diagnosing Repair or replace any faulty parts such as wiring, connectors, or control modules. Definition. The U0100 code is a generic network communication code. Use high-quality parts and components when making repairs. The PCM is the computer responsible for the engine’s management. Dec 3, 2022 · John04VUE. 4 codes p0299 p0300 p1101 and u0109. 2019 Terrain SLE 1. iceageiscoming. The fix for the U0141 code will depend on the root cause of the problem. U0109 - Unknown (google says Lost Communication with Fuel Pump Control Module (FPCM)) I have checked the following fuses and they look okay: Engine Compartment: F30. Control Module (FPCM) These symptoms may be the result. Check for broken, bent, or pushed out connector pins. Sep 6, 2022 · Summary. This is how an experienced mechanic will solve the U010C DTC code on Cummins 6. Ok I will check that. How To Fix U0100 Code? [4 Simple Steps] - Yezig. The check engine light DTC codes were P025A and U0109. CAN High has a communication rate, or baud rate, of 500k bits/second. It’s the most common air/fuel mixture-related code. P025A and U0109. Check Details Check Details. When the ignition key is turned on each module on the Data Bus sends a message indicating its status. 4 volts will show on the voltmeter. The fuel pump makes it possible for the fuel to travel from the fuel tankto the fuel injectorsin the engine. It can be a stand-alone module or a computer integrated into the PCM. The supervision time-out period is 250 ms. Newer model cars no longer use an Idle air control valve; instead, they control the idle using the Code U0073 stands for Control Module Communication Bus 'A' Off. Here are the potential fixes for each cause of the code: Faulty wiring. replaced dead battery. Jun 4, 2020 · U0109 - Lost Communications to Fuel Pump Control Module. 4 turbo con códigos P0300 y códigos U0073, - YouTube. Perform regular fuel filter changes and pressure inspections. In case you get a U0073 code you need to know what you are dealing with. Feb 21, 2019 · 8. Your PCM requires a full charge to work properly. I replaced t Jul 24, 2023 · How to fix the U0141 code. May 22, 2024 · Diagnostic trouble code (DTC) P0230 stands for “Fuel Pump Primary Circuit. Resolve any open circuits in the CAN bus. Jun 29, 2020 · The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. The P2534 code stands for “Ignition Switch Run/Start Position Circuit Low. Sep 20, 2023 · This Diagnostic Trouble Code (DTC) will be set if the high-pressure fuel system cannot achieve this threshold within a certain time and crankshaft rotation limits; the Powertrain Control Module ( PCM) attempts to start the engine at fuel pump assembly pressure. There are a few things that can cause this code like a bad sensor, or high or low fuel pressure. Specifically it means that the voltage detected with the circuit is outside the normal range or experiencing performance problems. It pops up when the Power Control Module (PCM) receives an erratic signal voltage from the fuel pressure sensor. Dec 1, 2018 · U0109 - Lost Communication With Fuel Pump Control Module A. Sometimes U0107 can pop up intermittently due to connection or control module issues, or it can result from a dead battery that isn’t pushing sufficient voltage to the system. ⇒ If the wiring is damaged, repair as needed. What is the Cost to Diagnose the Code U0109 Lincoln? Labor: 1. Find a shop. To diagnose the P0103 Ford code, it typically requires 1. This is likely the cause if the code pops up in code Mar 8, 2010 · He'd know better. CLEAN THE FUSE BOX!!! Get some electric parts cleaner, cotton swab and clean off the pins under the fuse box whenever you pull it out. P2534: Affordable Fix For Your Car’s Electrical System. You will need to get the BCM reprogramed by a Ford dealership near you to fix the code P0109. Jul 28, 2022 · Gm’s 1. If on-board diagnostics (OBD) logs this code, the Jan 3, 2022 · Let it sit for a bit and finally starts up again and was able to get into my work parking lot which was literally 100ft from where I was stuck. Find out what exactly this means, the symptoms and causes of the code U0101 and how to fix the malfunction. Dec 18, 2021 · PROBLEM SOLVED!!! P0496 GMC ACADIA CODE, VAPOR CANISTER PURGE VALVE REPAIRI had the check engine light come on and pop up the code P0496. A scan tool can read the fault codes stored in your vehicle’s computer system and provide you with information about the problem. . Check Details 6. i'm using my personal obd-ii auto Mar 30, 2020 · Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. Check Details Possibly. Meaning. Preventing the P0628 code requires proper maintenance of the fuel pump control system. The automobile fault code P2534 can be diagnosed and fixed within an estimated repair time of 1. Do a quick check on your vehicle’s battery to see if it’s still running strong. Most auto repair shops charge between $75 and $150 per hour. Here is a TSB of a problem area for the wiring on ATS/CTS cars that can cause the U0109 code to set. P0107. It’s logged when the module detects a voltage below the manufacturer-specified value. Check all fuses supplying the FPCM on this vehicle. Contents:0:21 Basic DTC analysis according to OBD2 protocol standard. P0232 – Fuel Pump Secondary Circuit High:** In Jun 30, 2023 · How to fix p0442 engine codeP0796 chevy silverado Chevy start gmc crank fpcm communicationU0109 code gmc sierra. Throttle Body issues: A dirty or faulty throttle body can disrupt the airflow into the engine, leading to an incorrect idle speed and the P0506 code. Mar 29, 2020 · To diagnose the U0109 2010 Ford Fusion code, it typically requires 1. The P025A code is logged once the powertrain control module (PCM) detects abnormal voltages in the fuel pump control module’s circuit. 0 hour. Flow Control Module due to a disruption. of water intrusion into the Fuel Pump. I read if you repla May 28, 2023 · W. Has anyone had an issue with this check engine code U0109 apparently is the lost communication with the fuel pump module. Each message contains the identification number of the transmitter module. Replace any corroded or burnt wiring or connectors. The cost to diagnose the U0109 Pontiac code is 1. The most common causes of P0171 are the purge valve or a vacuum leak. CAN is a two-wire bus, consisting of CAN High and CAN low. r/ram_trucks. The fact that the title is "Lost Communication with the Fuel Pump Control Module" doesn't necessarily mean that the FPFC Module is defective. There’s no single way to cure the problems causing any DTC because different vehicle models are designed differently. P015A - Fuel Pump Module Control Circuit/Open. May 4, 2021 · How to Fix the U0073 Code Fixing the U0073 code can be tricky, especially since solutions can vary depending on your vehicle’s make and model. in the PCM. It will cover all makes and models that are 1996 or newer. If your battery is pushing anything less than 12 volts, try replacing it with a new one before you move on to anything more complex. Typically, it is brought on by damaged wires/connectors within the circuit or the Controller Area Network (CAN Jun 26, 2023 · Follow the recommended maintenance schedule for your vehicle. Mar 29, 2020 · The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. May 26, 2022 · If you can access the codes from the FPCM module, then code U0109 is either intermittent or a memory code. 2. Some symptoms to keep an eye out for are an OBD-II Code U0109 is defined as a Lost Communication With Fuel Pump Control Module. P00C6 Ford Code - Fuel Rail Pressure Too Low Engine Cranking. Use high-quality fuel. Dec 22, 2015 · Last night on my way home from work, my truck began to sputter when throttle was given. Jun 25, 2015 · Hard cranking, no start condition, etc. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Fuel Pump Control Module has not been received. This problem is Jun 13, 2014 · Without being directly involved with the issue and what has been done, it would be difficult to suggest a next step. Jun 29, 2020 · Labor: 1. Vacuum leaks: Any vacuum leaks in the intake manifold or associated components can cause an improper air-to-fuel ratio, resulting in a low idle speed and the P0506 code. The IAC system is responsible for controlling the engine idle speed. The computers in modern vehicles (referred to as modules) communicate with one another over a data bus. 7. The CAN allows the PCM and other modules to communicate with one another. 4L turbocharged 4-cylinder engine, commonly found in the Chevy Sonic, Cruze and Buick Encore, has a well-known issue resulting in a lean code, P0171, First, Check Your Battery. The meaning of fault code U0101 is: Lost Communication with Transmission Control Module (TCM). U0109 Cadillac Code - Lost Communication With Fuel Pump Control Module. These components need checking. Customer. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. If the GPCM module cannot be contacted, then code U0109 set by other modules is active and the problem already exists. Properly service the vehicle’s fuel delivery system. If this (CAN) bus is disrupted, control modules will be unable to communicate information. I decided not to drive it until I could take a look and maybe find the Oct 5, 2017 · So I pulled codes and got Trouble codes U210B and U0109. 6. Pump is working car is driving normal. 5 AWD- Blue Emerald Metallic - Mine. U0109 Code - Lost Communication With Fuel Pump Control Module. Dec 26, 2017 · MIL code U0109 then completely unresponsive. The codes should be checked and fixed properly to get rid of misdiagnosis. The truck ran fine the rest of the way home. It looks like the fuel pump module or fuel pump relay is the likely culprit, or possibly a broken/chafed wire that's shorting out. Mar 29, 2020 · To diagnose the U0109 Lincoln code, it typically requires 1. Cadillac Mechanic: JohnH930. 6 AWD- Metallic Grey - Hers. | What is the Cost to Diagnose the Code U0109 Mercury? Labor: 1. Sep 21, 2023 · Labor: 1. Repair any connection issues if found, reconnect all connectors and retest the system before replacing the Fuel Pump Control Module. The cost to diagnose the U0109 Lincoln code is 1. U0109 Buick Code - Lost Communication With Fuel Pump Control Module. Visually inspect the wiring harness and connectors for damage or corrosion. Step #3 Check EGR cooler. Mistake code U0109 can be issued if the PCM, or other control modules, is unable to communicate directly with the fuel control module. Make sure that there’s no wiring damage. This DTC sets when the PCM is still not detecting a duty cycled signal on the FPM May 7, 2017 · But it is VIN# *****. 0. 6 volts with the engine off and the key on. P0300 Code Appeared? What It Means & How to Fix - 1A Auto. Code: U0109. Step #2 Check EGR pipe. This code sets when the powertrain control module (PCM) detects a signal to or from the fuel pumpthat does not match the expected values. The difficulty level of repairing this code is moderate. 0 hour of labor. There is a TSB (Technical Service Bulletin) that Ford put out for service technicians to repair certain vehicle concerns. Plugged in my OBD reader and saw P0109 and P025A - air fuel trim adaption out of range or something like Jan 31, 2018 · 5856 posts · Joined 2012. 3 knock sensor locationU0109 code: truck cranks fires sometime but wont start u0109 code 09 silverado 1500 po230 u0109 code has new pump and fpcm changed fuseGmc fuel pump control module recall. The U0073 code is defined as a “Control module communication bus A off”. #1 · Sep 16, 2018. It is common for most auto repair shops to charge between $75 and $150 per hour. If you are here asking about a second opinion (ie "Is the shop trying to fleece me?"), please read through CJM8515's post on the subject. When I connected the code scanner I got U0109 Lost Communication with Fuel Pump Control Module (FPCM). . P0130. 1:48 Insight into pro Diagnosis. 28 posts · Joined 2015. wjarms Discussion starter. This bus is called the controller area network (CAN). Took it to the dealer they didn’t see anything wrong with it cleared the code and it came back today. 1. How to Fix. Here are some tips on how to prevent the code from appearing: Perform regular maintenance. Nov 4, 2022 · How to Fix the U0107 Code. Owner. Jul 30, 2023 · How to fix a flex fuel engine rich condition. Aside from a failed fuel pump control module, a P025A can also be caused by PCM issues and faulty wiring. Inspect wiring and connections regularly. Jul 23, 2021 · P069E code indicates that the FPCM has identified an issue in the fuel system and is requesting the PCM turn on the check engine light. The ABS light is not lit up on the dash at this time nor have i even seen it light upI have ran a diagnostic tool on it with results being C056D-00 which Here are the codes closely related to P0230: P0231 – Fuel Pump Secondary Circuit Low:** This code indicates that the fuel pump secondary circuit is experiencing low voltage or an electrical problem. U0109 Chevrolet Code - Lost Communication With Fuel Pump Control Module. My service stabiltrak and service traction control lights come on immediately from the time the car starts. Then, attach the red one to the CAN C- and 2. 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. How to Fix A Flex Fuel Engine Rich Condition - DTC P0172 P0175 - YouTube. Description: The PCM monitors the FPM circuit for the presence of a duty cycled signal. Remove the bolt, clean the ground wire terminals and the surface of the frame and resecure with a bolt and nut. –adjective. Jul 2, 2020 · The Powertrain Control Module ( PCM) monitors the Fuel Pump Monitor (FPM) circuit for the presence of a duty cycled signal. To diagnose the U0109 Chevrolet code, it typically requires 1. If damage is not observed, then extract the wiring from the conduit and inspect all of the remaining areas as needed. DTC U010 is set when the transmission control module is unable to receive or send messages to the controller area network (CAN). 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. Related codes. It happened again, cleaned it and everything went back to normal. The PCM communicates over a bus known as the controller area network (CAN). 4. These results may vary depending on the producers of the voltmeter. If your engine light is on and the fault code is u0103, it may be due to a faulty gear shift control module ‘A’, an open or shorted harness, or poor electrical connection. Check Details. G300 ground location. P0234. ”. 2328026. =====Claim your FREE engine code eraser 👉 https://free. The automobile fault code U0109 indicates a communication problem between the transmission control module and the engine control module. P0121. not sane; not of sound mind; mentally deranged. With that being said, a few things you can attempt include: Battery Check. P0171: Fuel Trim System Lean If not, repair the High Speed CANNetwork. nonda. The CAN (Contr To fix a P0401 code on Chevy vehicles (models like Silverado, Impala, Malibu, Volt, Duramax, Equinox, Uplander, and Monte Carlo) you need to follow the steps below: Step #1 Check EGR valve. Other possible issues could be a throttle body that is dirty, damaged or has failed altogether, or the intake exhaust or air path could be Sep 16, 2018 · Srtguy3106 Discussion starter. 2005 chevy silverado 5. Jul 14, 2018 · It indicates that your Chevy Cruze is running lean on the bank one side. See the OASIS printout below and TSB 13-6-28. Apr 13, 2018 · On the frame rail body mount just under the drivers door, you should see a couple of ground wires attached with a self tapping bolt. Jun 29, 2020 · To diagnose the U0109 Cadillac code, it typically requires 1. Cracking The Code: P069E – Cost And Complexity Unveiled! The factors influencing the diagnosis and fixing cost of the automobile fault code p069e are the estimated repair time and the hourly rate charged by auto repair shops. That means that the CAN bus controller has detected a problem with a cable that is used for communication between several modules. Apr 23, 2022 · Fix for Chevy Colorado and GMC Canyon pickups who experience a no start condition where the engine will crank (turn over) but will not run. Associate Degree. •. If any module fails to send that message one of the other modules on the bus will set a DTC. A U0109 is related to and may be accompanied by the following codes: Aug 19, 2021 · how to fix u0109 obd-ii trouble codelost communication with fuel pump control module (fscm) for chevy traverse 2012 model. pg cr od zv rt tl zv ee hr zt