97 blazer keyless entry programming

[knowltg]

if it is a factory keyless, you need to jumper the # 4 and #8 pins on the obd2 connector and if you look at it from the open driver door you start counting on the upper left corner. when these 2 pins are jumpered you will here your locks and gate cycle then you can hold down the lock unlock bottons on your new remote untill they cycle again.