How to reset the ECM

[PotentialTahoe]

I was wondering how do I go about resetting the ECM, will the reset also clear all the trouble codes temporarily. I am installing the speed sensor and want to reset the ecm prior installing and testing the new sensor. Thanks for the help.

 

[peterey2]

get it hooked up to a code reader or scanner and erase all your codes.

 

[TahoeGoBoom]

disconnect the batt ground..

 

[peterey2]

theyll still be held in the computer's memory for codes but thatll work too.

 

[hapyspaz]

While the engine is running, open the fuse panel under the hood, pull out either ECM A or ECM B fuse. Engine will die. swap the placement of the fuses. restart engine. This should reset your ECM if you dont have a scanner or code reader to reset it.