it is bolted to the distributor just under the distributor cap.
In a 1988 Chevy pickup the ECM is located behind the glovebox.
Where is the control module located on the 1983 Chevy blazer
The 2003 Chevrolet trailblazer power control module is located in the fuse box. The fuse box is located in the engine compartment.
It is called a throttle body control module. It is in the engine compartment on the top of the engine.
Vehicle computer is located on passenger side engine compartment on firewall.
The 1990 Chevy Celebrity engine is distributorless, the ignition is handled by a combination of the engine control module(computer) and the ignition control module. You did not mention which engine the car has. If your car has the 4 cylinder engine the ignition control module is below the intake manifold at the rear of the engine. You can follow the spark plug wires to it. The coils are mounted to the ignition control module. If your car has the V6 the ignition control module is near the starter and again you can follow the spark plug wires to it. Again the coils are mounted to the ignition control module.
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It is beside of the battery just under the upper radiator hose.
Lower passenger side of engine block, the coils are attached to it.
remove glove box panel ecm is located behind panel
It is the engine control module (computer)
Depending on what type engine you have, the ignition module may be an integral part of the distributor cap.