4 ways to do this but all of them involve you repairing the problem first. first there are auto parts stores that can check your engine codes for free, well they can clear them as well. then you can disconnect the neg. battery terminal, or pull the ecc or engine control computer fuse and wait for a minute or so. Of course since it is a 2006 the dealership should do this including the repairs under warranty. Remember if the problem still exists then the code will come back as soon as the computer gathers enough information.
How do you reset the computer in a 04 blazer 4.3L
1st repair the problem 2nd Use the scanner to clear the codes set in the computer system
To reset the computer on a 2006 Jeep Liberty, disconnect the negative battery cable using a wrench and leave it disconnected for about 15 minutes. This will help clear any stored diagnostic trouble codes and reset the computer. After the time has passed, reconnect the negative cable and start the vehicle to allow the computer to recalibrate. Make sure to check if any warning lights reappear after resetting.
You do not have to reset the computer. It will take care of itself.
Disconnect the battery for five to 20 minutes. This will reset the ECM.
The on-board computer is factory installed and cannot be 'reset' - it must be replaced.
To reset your oil light:Turn the key to the 'on' position (do not start the truck).Press the gas pedal to the floor three times.
new mode actuators must be reprogrammed with scan tool that is capable of reflash.
Undo the battery negative cable for approx 20 minutes. That should remove all codes and trouble codes. They will however return if its a trouble code not diagnostic, if that makes any sense.
Unhook the battery for ten minutes.
There is nothing to reset except your radio presets and clock. The computer will take care of itself.
Disconnect your battery cable for a bit and then reconnect.