1995 Jeep Wrangler 2.5L PCM | Engine Computer ECM ECU Programmed Plug&Play (2023)


This Engine Computer also referred to as an Engine Control Module (ECM), Engine Control Unit (ECU) & Powertrain Control Module (PCM) is a guaranteed replacement for all 1995 Jeep Wrangler PCM models with a 2.5L engine size.

Our 1995 Jeep Wrangler ECM will arrive Programmed & Updated to your vehicle's VIN (Vehicle Identification Number). The unit will be Plug and Play with no additional programming required.

NOTE: We will need your Vehicle Identification Number (VIN) in order to program the unit.

During the checkout process, please enter it in the text field labeled "Vehicle Identification Number (VIN)" located in the Vehicle Information section.

*Don't have your VIN number on hand? Not a problem, you can send it to us later by e-mail admin@fs1inc.com or by phone 516-766-2223 (EXT 2)


Each unit is prepared, individually inspected, fully refurbished, and quality control tested by our certified in-house mechanics. All testing and refurbishing is done entirely in house so no unit leaves our facility without proper inspection. This allows us to provide units that are superior in quality at an unbeatable price! All units are tested to ensure they address all common Jeep Wrangler PCM issues including:

  • Electrical Problems
  • Failure to Start
  • Fault/Trouble Codes
  • Intermittent Problems
  • Loss of Power
  • No Ignition Pulse
  • No Injector Pulse
  • Poor Fuel Economy
  • Shifting Problems

Why Purchase From Us:

  • Industries Lowest Prices
  • FREE Lifetime Warranty
  • FREE Domestic Shipping with Quick Turnaround Time
  • No Core Charge or Core Return Required; you can keep your old unit
  • Guaranteed OEM products; Refurbished and 100% Tested
  • Latest Software Updates Included
  • Plug & Play; No Additional Programming Required
  • ASE Certified In-House Technicians
  • Readily Available Support Agents (email, phone, live chat)
  • Google Verified Merchant, 1500+ 5-Star Reviews ★ ★ ★ ★ ★
(Video) Episode 305 - Does your Jeep Wrangler have a bad computer ECU/ECM/PCM?

Additional Information

More Information
Engine Size2.5L
Keys AvailableNo

Shipping & Cancellation

Shipping Rates
Shipping Destination Flat Rates Duration of Shipping
Africa, Central & South America $450.00 USD 2-8 Business Days
Asia, Australia & Europe $300.00 USD 2-8 Business Days
Canada $105.00 USD 2-8 Business Days
Caribbean $225.00 USD 2-8 Business Days
Mexico $300.00 USD 2-8 Business Days
USA Free Shipping 2-7 Business Days
  • All items have a 1-3 full business day (Mon. - Fri. excluding holidays) handling time after the order is fully processed for refurbishing/programming unless otherwise expressly stated.
  • Upon completion of refurbishing/programming, your item will be shipped using USPS Priority Mail unless an upgraded method of shipment is purchased.
  • All units which finalize refurbishing/programming BEFORE 3:00 p.m. EST, will be shipped that same day.
  • All units which finalize refurbishing/programming AFTER 3:00 p.m. EST, will be shipped the following business day.
  • Shipping times within the country vary but are generally between 1-3 shipping days (Mon. - Sat. excluding holidays). Customers will be notified of any delay via email.

Returns/Warranty: T&C

All items come with a lifetime warranty. Warranty does not include any labor associated with installation and/or removal of parts, key and/or Locksmith fees. Buyer will not be reimbursed for any such fees--NO EXCEPTIONS. Buyer hereby acknowledges and agrees that the Seller's liability is limited to the price of the item sold and Seller is not liable for any damage and/or injury sustained that results from any item(s) sold by any entity operated by Flagship One, Inc and Buyer hereby now and forever relinquishes Seller from any such liability. Returns must be in original condition and be accompanied by a Return Merchandise Authorization (RMA) otherwise the return will be deemed unauthorized. Unauthorized returns will not be processed and will be held for no more than 45 days after receipt. After 45 days, if an unauthorized return is not claimed or accompanied by an RMA, Seller reserves the right to maintain possession of the unclaimed/unauthorized return. Electrical parts are tested prior to purchase and if returned, all units will be inspected for burnt components, physical damage and water damage. Returns will be processed in the order received and may have a greater handling time than order processing. The lifetime warranty shall be void if an item is returned with any signs of: (a)burnt components; (b)physical and/or water damage; (c)misuse, abuse, modifications, opened, tampered with, and/or used for any purpose not originally intended; (d)vehicle is involved in a collision; or (e)security seal is removed, broken and/or damaged. Buyer must activate warranty within 20 days of receipt to be valid. Returns are subject to a 20% restocking fee. Returned programmed items are subject to an additional $85 non-refundable programming fee and, if Buyer purchased keys, the return is subject to an additional $90 non-refundable key fee.

All returns for money back must be received by Seller within 30 days from the date of original purchase—NO EXCEPTIONS. Returns received after 30 days from the date of original purchase include an option for an exchange or in-store credit. Unless otherwise expressly provided, in-store credit is subject to the return fees when the unit is free of defect which shall be determined solely by Seller. Seller expressly reserves the right to require a Buyer to return an alleged faulty/defective unit to Seller at the Buyer's expense for testing prior to replacement. NO replacement shall be issued until receipt of return. All items are OEM/Refurbished and Seller will NOT reimburse any fees a Buyer expends in connection with a possible faulty/defective unit(s) including, but not limited to Locksmith fees, diagnostic fees, rental car fees, storage fees, dealership fees, third party reprogramming fees, etc. This transaction shall be deemed to have been made in the State of New York and the validity, interpretation and performance shall be governed by NY. Exclusive jurisdiction and venue over any disputes arising out of or in connection with this transaction shall be brought in Nassau County, NY. After one claim, the warranty is exhausted. Buyer hereby understands, acknowledges, agrees and accepts all of the terms set forth herein upon purchase and that the terms set forth herein shall be controlling.


q: What is a Vehicle Identification Number (VIN)?


The vehicle identification number (VIN) refers to a unique code that is given to each automobile. The VIN acts as the vehicle's fingerprint, as no two vehicles have the same number. A VIN is composed of 17 characters (digits and capital letters) that act as a unique identifier for the vehicle. Each character is used to reference the vehicle's unique features, specifications and manufacturer. VIN numbers can be used to track recalls, registrations, warranty claims, thefts and insurance coverage. In our case, the VIN is used to identify the correct module for a particular vehicle.

q: What does "Plug & Play" mean?

Plug & Play or Plug ‘N Drive refers to all control modules that don’t require additional programming. Most units before 1996 (OBD I) are referred to as plug-n-play. All of our Chrysler, Dodge, Plymouth & Jeep units are sold as Plug & Play.

q: What does "Programmed & Updated" mean?

This term refers to the programming process our mechanics perform on all specified control modules. During this process the vehicles replacement engine control module is VIN Programmed and flashed with the most recent manufacturer updates. These updates can help improve the performance and fuel economy of the vehicle.

q: How much is shipping?

Flagship One offers free shipping throughout the USA. There is a 1-3 day handling time after an order is place. We use USPS Priority shipping to deliver all of our modules. This usually takes 1-3 business days on average and most of our modules are delivered to the customer in less then 5 business days. In some cases we can expedite the shipping and will inform you if that is a possibility.

(Video) Replace a PCM Computer on a Jeep TJ

q: Where can I locate my VIN?

You can find the VIN (17 digit identification number) engraved at the bottom corner of the drivers side windshield or inside the drivers door. It can also be found on the title, registration or insurance card of the vehicle.

The Engine Computer (ECM) will adapt to your own driving patterns and it can also monitor and regulate all the essential functions in a vehicle as conditions change. The engine computer is also responsible for making sure that all the modules are communicating smoothly and seamlessly.

(Video) Bad Engine Control Module Symptoms #FlagshipOne #EngineControlModule

q: Can I replace an ECM myself?

The engine control module is easy to replace and relatively simple for you to do it on your own. Nevertheless an ECM can be costly, so you need to make sure you have the right part number plus the required software updates to ensure a smooth transition.

q: What causes an ECU to fail?

The engine control module is prone to both external and internal threats that can cause it to not work as expected. Below is a list of the most common ones:

  • Constant engine vibrations
  • An unexpected short circuit
  • Excessive Temperature
  • Natural Threats such as corrosion
  • Irregular voltage

Since the engine computer controls a lot of the major functions in a car it can be hard to pinpoint exactly what is causing your engine control module to malfunction but there are some common signs that can help you diagnose a faulty powertrain control module such as:

  • Engine stalling and misfiring
  • Loss of ignition pulse
  • Check engine warning light
  • Loss of acceleration
  • Car failing to start


Why would a PCM need to be reprogrammed? ›

PCM Reprogramming or reflashing is essentially a software upgrade and may be required to resolve a hot or cold starting issue, idle roughness, stalling, or an emissions failure.

Can you reprogram your own ECM? ›

Reprogramming your ECM is necessary for keeping your vehicle control software up to date. Much like the operating system on your home computer, improvements in software are often made by your car's manufacturer. The software can be updated simply by downloading and installing the latest version.

What happens if ECM is not programmed? ›

If the ECM fails completely, it will leave the vehicle without engine management control, and will not start or run as a result. The engine may still crank, but it will not be able to start without the vital inputs from the computer.

Do I need to reprogram the ECM? ›

ECM Programming is Essential

In fact, if you replace the ECM on a vehicle model year '96 or newer and don't flash or program it, then your vehicle won't start. Most electronic car modules have a warning on them about reflashing before installation.

Which method can be used to reprogram a PCM? ›

Reprogramming a powertrain control module​ (PCM) can be done by downloading new calibration files from a personal computer​ (PC) onto the​ PCM's memory.

How do you tell if Jeep PCM is bad? ›

Common Symptoms of Jeep PCM Failure
  1. – The check engine light is on.
  2. – Your engine stutters or stalls.
  3. – Gas mileage has inexplicably gotten worse.
  4. – Your Jeep is shifting erratically or seemingly at random.
  5. – Your Jeep has difficulty starting.

Can I replace my ECM with a used one? ›

If you mean can a bad ECU be replaced with a used one from a similar vehicle, yes. But it will need to be programmed which requires an interface device, a laptop and access to the manufacturer's website. Most independent shops won't be able to do this so a trip to a dealer is required.

Can you tune a stock ECM? ›

If you are just wanting to implement some slight modifications like exhaust and air intake, then you will most likely be able to tune and program your existing stock ECM to meet your needs. On the other hand, if you are trying to convert your vehicle into a race car, then you will most likely want an aftermarket unit.

What causes ECM not to communicate? ›

In most cases, communication issues can be caused by various reasons including: ignition-key position, connector-voltage issues, incorrect communication protocol, hung ECM, missing or bad data, and OEM-updated ECM software that is unknown to the scan tool.

What is the most common failure of an ECM? ›

The most common source of ECM failure is in one of the wiring harnesses. If the wires to the transmission or fuel injectors become corroded, they can lose conductivity, leading to a failure. Fortunately, these issues can usually be resolved by replacing the corroded wires.

Do ECU numbers have to match? ›

Conclusion. You need to install a matching ECU when you do an engine swap on your car. However, you do not need to replace the ECU when you replace the engine with the same type and model. Alternatively, for an unmatched engine, you could tune the ECU or install a standalone unit.

Do you have to flash ECM? ›

My car has 179000 miles. My car has an automatic transmission. Yes, a new ECM will have to flashed before you can even start your vehicle.

What is the difference between PCM and ECM? ›

Most people, including automobile technicians, confuse the two for each other. The main difference between the two is that the ECM controls specific parts of the engine, regulating and sending commands. While the PCM is used in newer models to control almost all engine functions.

Can you swap PCM? ›

Auto manufacturers don't want people changing their PCM settings, because badly-done tweaks could cause crashes and leave them liable for damages. Factory PCMs can indeed be flashed, but only to restore them to factory settings in the event that they've become corrected.

How long does it take for ECU to reset? ›

Resetting an ECU by disconnecting a car battery is a simple process that anyone can do. Please be aware that resetting an ECU usually takes anywhere from 30 minutes to an hour, so plan accordingly.

How can I make my PCM stronger? ›

Try to incorporate all PCM (Physics, Chemistry and Mathematics) subjects in your daily routine. Set a target of solving at least 70-90 numerical problems every day from all the three subjects. Study by the plan, not by hours.

How do you know if a PCM relay is bad? ›

What Are the Symptoms of a Faulty PCM?
  1. Your “check engine” light is on.
  2. Other warning lights may be on, including traction control and ABS.
  3. You lose fuel economy for no apparent reason.
  4. Your car stutters when starting, requires multiple attempts, or won't start at all.
  5. Stuttering or stalling during idling.
22 Aug 2019

How do you recalibrate PCM? ›

  1. Press and hold the PCM info button for approximately 10 seconds until the PCM reboots.
  2. Immediately select the following from the PCM CAR > OPTION > Set PCM System > Reset PCM > Vehicle Handover > Yes > Yes.

What happens if PCM relay is bad? ›

Erratic or Random Shifting

If your automatic transmission vehicle isn't shifting normally, take it to a mechanic immediately. A failed PCM or TCM can cause the car to get stuck in gear, which can be a serious safety issue. It can also lead to costly transmission damage.

Is PCM and ECU the same thing? ›

The terms PCM (Powertrain Control Module), ECU (Engine Control Unit) and ECM (Engine Control Module) can sometimes be used as interchangeable generic phrases for the same thing - a control unit for the engine/transmission system.

Can you reprogram a bad ECM? ›

In many cases, when the ECM is having problems, the cause is a software issue rather than an internal hardware concern. Software problems can usually be fixed by reprogramming the ECM rather than replacing it.

Are refurbished ECM good? ›

Remanufactured engine control modules (ECMs) are car computers that have been repaired, refurbished, reprogrammed, and are good as new. In fact, because they contain all the latest manufacturer software updates, they are on par with ECMs in new vehicles that are rolling fresh off the line.

Can you flash an ECU back to stock? ›

With just a laptop and a cheetah cable, we can assist you in reverting the software changes back to when your car was stock. Please note this is for engine (ECU) flash back to stock. If you also have a transmission tune you'd like changed back to stock, we also offer a bundle discount below.

Can ECU tuning increase horsepower? ›

Modern engine tuning can allow you to get better mileage than ever before by chip tuning your ECU. Your engine can also get an extra boost in horsepower and a better torque through ECU modifications. Chip tuning allows you to override the factory settings of your engine to improve the performance of your car.

Can you ECU tune your own car? ›

Installing a preset car tune, also known as remapping the ECU, is the most effective and easiest tune an owner can do themselves.

Does unplugging the battery reset ECU? ›

It depends on the car's age and type of ECU used. On some older cars, disconnecting the battery will reset the system but in most new cars it does nothing, except potentially reset the clock and radio station presets.

Can you reset ECU by removing fuse? ›

Another way to reset your ECU system

Instead of opening your bonnet and removing the earth lead, you can also disconnect the battery from your car by pulling the fuse that powers up your radio or footlights. You can find this fuse near your fuse box, usually on the lower right hand side of your footlight controls.

What is hard reset in ECU? ›

In simple terms hard reset is equivalent to removal of battery (Power source) and connect it again. This implies that the memory (Volatile, Non-Volatile and Electronic sub components which directly connected to ECU, peripherals).

Does an ECU have a fuse? ›

Well, you see, that fuse protects the ECU (Engine control unit or ECM engine control module) from over amperage's. So if there's an electrical surge, the brain is protected. On a newer model car the ECU/ECM controls everything ignition related AT LEAST. Timing, ignition, air.

What is hard reset and soft reset in ECU? ›

A soft reset is the restarting or rebooting of a device like a computer, smartphone or tablet. It closes all applications and clears any data in random access memory. This is different from a hard reset, which could potentially cause loss of settings, saved applications and user data.

What does resetting Transmission Control Module do? ›

Tips When Resetting A Transmission Control Module

The main objective of a transmission control module is to precisely provide the right engine changes to provide the optimum engine performance of the car. You can reset it by taking off the position of its power supply for more than five minutes and then turning it on.

What happens when ECM fuse blows? ›

On a newer model car the ECU/ECM controls everything ignition related AT LEAST. Timing, ignition, air. When the fuse blows, the engine control unit/module loses power and is unable to control the ignition process, the throttle (drive by wire) shuts and fuel ceases to be commanded to move.

What sensors are connected to ECM? ›

The ECM usually monitors and regulates the throttle position sensor, which tells the engine how much air and fuel to mix to make power; the coolant temperature sensor, which lets the engine know if it's running too hot (and alerts the driver, via the instrument panel light); the voltage regulator, which tracks and ...

What causes blown ECM fuse? ›

If the ECM fuse keeps blowing, then there is a definite electrical short. Most of the time the short is in the ECM, but it may have a short in the wiring going to it. I usually isolate it by going through the wiring schematic and disconnecting areas of the circuit until I find the short.

How do I know if my ECU is working? ›

Here are the most common symptoms of a bad ECU:
  1. Check Engine Light stays on after resetting.
  2. Car was jump started on reverse polarity.
  3. Engine turning off for no reason.
  4. Water Damage or Fire Damage on the ECU.
  5. Apparent loss of spark.
  6. Apparent loss of injection pulse or fuel pump.
  7. Intermittent starting problems.
  8. Overheating ECU.

What causes lost communication with ECM PCM? ›

The U0100 code shows up when there is a loss of communication between the ECM or the PCM. This could be due to a loose connection or broken wires, but it could also indicate a problem with the PCM computer itself.

What sensors does an ECU need? ›

This typically includes temperature and pressure sensors, on/off signals and data from other modules within the vehicle and is how an ECU collects the information it needs to make decisions. An example of an input would be a Coolant Temperature sensor, or an Accelerator Pedal Position sensor.

How does ECU communicate with each other? ›

The CAN bus system enables each ECU to communicate with all other ECUs - without complex dedicated wiring. Specifically, an ECU can prepare and broadcast information (e.g. sensor data) via the CAN bus (consisting of two wires, CAN low and CAN high).

How do I program my replacement ECU? ›

ECU programming guide
  1. Connect the vehicle interface cable to the OBD-II connector and turn the ignition switch to ON.
  2. Open the ProECU software and choose Tools then Detect Vehicle.
  3. Select Program Engine ECU.
  4. Choose Query ECU to identify the ECU version fitted to the car.

What happens if you put the wrong ECM in your car? ›

A faulty ECM can send poor data to your vehicle's transmission control module (TCM). As a result, the vehicle cannot properly shift gears or apply power, causing the shift to feel awkward, delayed, or even jarring. When this occurs, the engine may sporadically become more active or stall out.

Can you flash ECU? ›

Tuning your ECU is also known as “flashing,” and the process of this flashing is a procedure where the software is updated to run your motorcycle more smoothly and more in precision with your riding style. Essentially, flashing or tuning your engine control unit is a remapping of the settings within the software.

Does the ECM have to match the engine? ›

Even if you're installing a new ECM in your old vehicle, it doesn't have to be reprogrammed to match its specifications.

Does a used ECM have to be programmed? ›

Reprogramming your ECM is necessary for keeping your vehicle control software up to date. Much like the operating system on your home computer, improvements in software are often made by your car's manufacturer. The software can be updated simply by downloading and installing the latest version.

What is PCM compatible with? ›

PCM, still working with old technology, can work with analog and digital players and receivers. As a result, PCM is still the standard for transmission.

How much does it cost to get PCM reprogrammed? ›

Prices could range from $80 to $150, depending on the service location you choose. What is this? The process takes around about half an hour, but keep in mind that most auto-electricians charge you for at least one hour of work.

Does the PCM have to be programmed to your car? ›

However, you will need to program the PCM to your car model. This you will need a software to do. But if you do not have the needed software, then you will need to get a dealership.

Can a dealer reprogram a PCM? ›

Many dealerships/repair shops often re-flash a vehicles PCM without mention to the vehicle owner. It is always suggested to flash your vehicle back to stock before taking your car to the repair shop to avoid any issues; however, this is not always possible.

How much does it cost to have a PCM replaced? ›

The average cost for powertrain control module replacement is between $949 and $1,028. Labor costs are estimated between $76 and $96 while parts are priced between $873 and $932. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location.

Is ECM the same as PCM? ›

Most people, including automobile technicians, confuse the two for each other. The main difference between the two is that the ECM controls specific parts of the engine, regulating and sending commands. While the PCM is used in newer models to control almost all engine functions.

How long does a PCM reprogram take? ›

The reprogramming procedure usually takes 30-40 minutes. 9. When the software has finished loading, it will note that programming is complete. The data is then transferred to the PCM's memory chip.

Do you have to flash a PCM? ›

Reflashing must be done in the car.

If you replace a failed GM PCM with an unprogrammed service unit, a program must be written into the PCM before the car will run, but the PCM must be installed in the car to load the program.

What components does the PCM control? ›

The PCM controls ignition timing, fuel delivery, valve timing in engines with Variable Valve Timing), emissions functions, turbo boost pressure in turbocharged engines, idle speed, throttle position and cruise control.

Can you use a used ECM? ›

If you mean can a bad ECU be replaced with a used one from a similar vehicle, yes. But it will need to be programmed which requires an interface device, a laptop and access to the manufacturer's website. Most independent shops won't be able to do this so a trip to a dealer is required.

Can a dealer tell if you swap ECU? ›

Pretty much anything you do is detectable. For example even if you swapped ECUs, your original would have information indicating you were at X miles. If you blow up your motor and swap original ECU back in, there would be detectable info that your miles on car vs ECU does not match.

How can I tell if my ECM is bad? ›

The Most Common ECM Failure Symptoms
  1. Your 'Check Engine' Light Is On. Your car's check engine light is a sort of catch-all that many people ignore. ...
  2. Your Car Won't Start. ...
  3. Your Engine Stutters or Misfires. ...
  4. Sudden Drop in Fuel Economy. ...
  5. Sudden Loss of Acceleration. ...
  6. Your Engine Shuts Off for No Reason. ...
  7. Rough or Irregular Shifting.
14 Nov 2019

How do I reset my PCM? ›

Press and hold the PCM info button for approximately 10 seconds until the PCM reboots.


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