In my 2004 it is located on top of the radio. A real pain to get to. You have to remove the radio and alot of the AC stuff. Good luck.
Where is the control module located on the 1983 Chevy blazer
under the distributer cap
The PCM and ABS computers are under the hood mounted low and to the right. There is no separate BCM on an Astro.
The 2003 Chevrolet trailblazer power control module is located in the fuse box. The fuse box is located in the engine compartment.
1995 and earlier models use a separate ESC module mounted near the throttle body of TBI
In a 1988 Chevy pickup the ECM is located behind the glovebox.
it on the fire wall
The door lock remote control receiver for a 1997 Chevy Astro van is located inside the cabin. it is found on the right kick plate.
under drivers seat
right side firewall
The ignition module is located in the distributor, under the distributor cap.
I don't know excatly, But Iam pretty sure that Chevy put's the "Icm" in the distributor or on the coil pack. Your vehical however might not have a ignition module the "Power train control module"(pcm) in some vehical's control's spark timing.