That year did not have a controll module.
where is it at
Where is the control module located on the 1983 Chevy blazer
TCCM Transfer case control module
Where is the tcm in a 1994 chevy S10 Blazer
Trouble code U1026 means: Loss Of Active Transfer Case Control Module Communications Replce the Module
behind the passenger side front inside wall panel next to glove box
it on the fire wall
Remove the wiring harness from your 1995 Chevy Blazer ignition control module. Remove the ignition control module retaining screws. Reverse the process to install your new ignition control module.
on your 2000 Blazer the control module is located under the kick panel on the passenger side. Simply remove the plastic panel, unbolt the module with a 10 MM socket and disconnect the wiring hareness. While your there, check the wiring hareness for corrosion as this is a big problem. apply Dielectric grease to the hareness and install new control module.
The ignition module is located in the distributor, under the distributor cap.
Inside the center console, up front.
I believe in 93 they had the newer style computer, this eliminated the electronic spark control module.