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It is inside of a black plastic cover that is mounted just to the left of the battery / between the motor and the battery.
The 2003 Trailblazer (GMT360 platform) uses a PCM and it is located on the drivers side of the engine. It has three connections bolted to it.
Where is the pcm in the chevy venture 3.4 2004
where is the pcm module located on my 1997 Chevy truck
The 2003 Chevrolet Malibu PCM valve can be found on the firewall in the engine compartment. The PCM valve will be on the passenger side of the firewall.
timing is set by pcm, at factory!!
In the air filter box
The PCM is located in the right corner of the engine compartment under the air cleaner assembly and bolted to the chassis
right front fender behind the plastic
its under the passanger side fender
It is integral to the main ECU
Behind the glove box