Tips on how to Reprogram a Chevrolet PCM 1Use your net browser to visit GM's calibration look-up web page, and type inside your vehicle's VIN number to examine for any programming updates for your PCM. If you'll find updates, you will have to have to buy GM's techline information and facts technique (TIS) programming computer software and service.2Turn on your laptop or computer and plug the scan tool into it and your car, working with the pass-through cable.
Turn on the scan tool and load the TIS programming software package from GM in your computer.3Click the "Service Programming System" diagnostics car tool; solution on the key screen of one's TIS software program on your pc. The "Select Diagnostic Tool and Programming Process" window will seem in your screen Auto diagnostics.4Click on the "Pass-Thru" alternative beneath diagnostic tool, "Reprogram ECU" below pick programming method, and "Vehicle" beneath ECU place. Click the "Next" button inside the lower-right hand section with the window to proceed.5Enter the VIN quantity in the VIN text box inside the "Determine Vehicle" window, and click on "Apply" next for the text box. This may fill inside your vehicle's information within the boxes beneath. Click the "Next" button to proceed.6Go by way of the checklist in the "Preparing for Communication" window, and click next to confirm your VIN quantity. In case your VIN number is incorrect, enter the right one particular. Click "Next" in the bottom-right corner.
7Click on the "PCM/VCM" choice beneath the "Select Controller" section on the next window. Pick "Normal" below programming sort and click the "Next" button.8Select the newest calibrations for every single method in the "Calibration Selection" window by clicking on each system's tab, and placing a check mark next for the highest number of calibration. Click the "Next" button within the bottom-right corner of your window just after every single tab has a green examine mark on it.9Click "Next" at the summary screen immediately after verifying your recalibrations. If all your calibrations are up-to-date, an error will seem indicating there's nothing to reprogram. If they are not up-to-date, a transfer window will open along with the plan will start to download and reprogram your PCM together with the calibrations you selected.10Click the "Close" button on the "Programming Complete" window just after the reprogramming is full. It is possible to turn off your scan tool and take away it from your automobile.
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