Reflashing PCMs requires three things:
a scan tool or J2534 pass-through device that is flash capable
, a Windows laptop computer (Most require Windows 7 but some older applications may require Windows XP) with an internet connection for downloading the flash software from the vehicle manufacturer website (Click Here …
How much does it cost to flash your PCM?
Prices could range from
$80 to $150
, depending on the service location you choose. 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. PCM reprogramming is also one of the few times we'll recommend a dealership over an independent mechanic.
What do I need to program a PCM?
Reprogramming a PCM requires a
J2534 Pass Thru device
.
There are a dozen or more on the market, and some scan tools have pass thru capabilities too. To reprogram a PCM, the tool must comply with SAE Standard J2534-1. You can also use a J2534-2 pass thru tool that can reprogram other control modules as well as the PCM.
What does flash a PCM mean?
PCM =
Powertrain Control Module
. Sounds like they flashed it to a new revision, much like updating Windows on your PC to the latest service pack.
What is needed to reprogram ECU?
- Connect the vehicle interface cable to the OBD-II connector and turn the ignition switch to ON.
- Open the ProECU software and choose Tools then Detect Vehicle.
- Select Program Engine ECU.
- Choose Query ECU to identify the ECU version fitted to the car.
How long does it take to program PCM?
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.
What are signs of a bad PCM?
- Your ‘Check Engine' Light is On. …
- Your Car Won't Start or Starts Roughly. …
- Sudden Loss of Gas Mileage. …
- You Failed Your Emissions Test. …
- Your Engine Stutters or Stalls. …
- Erratic or Random Shifting. …
- You're Receiving a PCM-Related Error Code. …
- What to Do If You Experience PCM Failure Symptoms.
Will a bad PCM throw a code?
The PCM should give you a code for
P0600
through P0606 indicating that the computer has a processor error. However, if the PCM is corrupt, then just like a desktop computer, there is no accessing anything and no codes are put out for the computer would have no way of sending a signal.
Can I flash my own PCM?
Doing your own flash reprogramming is
not
without risk. Any number of things can go wrong during the installation process which may result in an incomplete update or a frozen PCM.
Can you use a junkyard PCM?
The short answer in my experience is:
no, you can not plug a junkyard PCM in without flashing it to your VIN
.
How do you reprogram a Chevy PCM?
- Use your web browser to go to GM's calibration look-up website, and type in your vehicle's VIN number to check for any programming updates to your PCM. …
- Turn on your computer and plug the scan tool into it and your vehicle, using the pass-through cable.
How long does it take to reprogram an ECU?
The whole process should take only
about fifteen minutes
. If the new software fails to transfer, the process is restarted. If it fails multiple times, it's likely the result of a bad connection and can be easily diagnosed and fixed.
How much does it cost to reprogram an ECU?
You should expect to pay between $150 and $300 at a local repair shop or service center just to have the ECU inspected and tested. In many cases, the faulty ECU can be repaired or reprogrammed, and this type of repair will usually run
between $300 to $750
, depending on the make and model of your vehicle.
Does a used ECM need to be reprogrammed?
While it's built to last,
it needs to be reprogrammed to ensure that everything is functioning optimally
. Several parts may experience wear due to constant friction, and engine parts may loosen because of vibrations.
