How do I relearn the PCM on my car?
How do I relearn the PCM on my car?
The exact procedure varies by car maker. On some vehicles, you enter the procedure on your scan tool and it wipes out the adaptive memory and starts to perform the relearn by itself. On other vehicles, you wipe out adaptive memory and then perform a specific drive cycle so the PCM can relearn.
What do I need to reprogram a GM PCM?
Turn on the scan tool and load the TIS programming software from GM on your computer. Click the “Service Programming System” option on the main screen of your TIS software on your computer. The “Select Diagnostic Tool and Programming Process” window will appear on your screen.
When do I need to do a computer relearn?
If vehicle battery was disconnected or Powertrain Control Module (PCM) was replaced, driving the vehicle will enable the PCM to perform a computer relearn procedure for obtaining proper driveability. Inform customer that driveability may differ from what they are accustomed to until the PCM completes the computer relearn procedure.
When does the crankshaft position sensor need to be relearn?
The PCM needs to learn the variability of the Crankshaft Position Sensor to better detect misfire conditions. Whenever the PCM is replaced, the Crankshaft Position Sensor Relearn procedure needs to be completed. The Crankshaft Position Sensor Relearn procedure requires the use of a scan tool that has this feature equipped.
The exact procedure varies by car maker. On some vehicles, you enter the procedure on your scan tool and it wipes out the adaptive memory and starts to perform the relearn by itself. On other vehicles, you wipe out adaptive memory and then perform a specific drive cycle so the PCM can relearn.
How to relearn a procedure on a GMC after changing?
Without resyncing, the PCM cannot properly determine the position of the crankshaft. The proper procedure for resyncing or relearning the crankshaft position is called the “CKP Variation Learn.”
Turn on the scan tool and load the TIS programming software from GM on your computer. Click the “Service Programming System” option on the main screen of your TIS software on your computer. The “Select Diagnostic Tool and Programming Process” window will appear on your screen.
When do you need a computer relearn procedure?
INTRODUCTION Vehicles equipped with engine or transmission/transaxle computers may require a computer relearn procedure after the vehicle battery is disconnected. Vehicle computers memorize and store vehicle operation patterns for optimum driveability and performance.
