It won't flash any if there aren't any to flash. It should at least flash code 12 when you use the test terminals. If it doesn't then you probably have a bad ECM. Make sure that you have power going to the ECM first. Most of the GM cars have a power wire running from the battery directly to the ECM. Make sure this is connected and the ECM fuse is good.
IF YOU JUST WANT TO ERASE THE ENGINE CODE GET AND OBD2 SCANNER THEY HAVE A CODE RESET FUNCTION. IF YOU NEED TO FLASH THE ECM CHECK THE DEALER FIRST, BUT SOME AFTER MARKET AUTO PARTS STORES CAN REFLASH ECM'S
1994 and 1995 lt1 both have a flash programable ecm they will interchange and can use cats tuner to reflash or tune it
Not familiar with your meaning behind the term "flash". It would be good if you could elaborate so we can get a reasonable answer for you.
about 150.00 dollars,and most are a flash unit and need programing from the dealer.
That depends on the labor rate of the shop. $75-$200
Your local Chevrolet dealership can "Flash" that ecm for you in one day for aprox the cost of one hour labor charge. Auto parts stores may be able to send it out for "flashing" but that may take a week before you get it back.
To change the engine timing you have to reprogram the ECM with a flash programmer from aftermarket chip and tuner companies like SCT Hypertech and Diablosport
replace the ecm
where is the ECM located on my 2000 Jimmy? where is the ECM located on my 2000 Jimmy?
ecm stands for electronic control module
you can't fix an ecm, you have to replace it.