Locating ECM

oldsmobile
cutlass

#1

i am trying to locate the ECM on my car, i have been looking and have asked several people, and everyone has said another location and i have checked them all


#2

What year Ciera?


#3

What year is your car? You may not have one.


#4

it is an 84’ and it does have an ECM


#5

It either behind the glove box or in the passenger side kick panel, the panel between the fire wall and the door under the dash board.


#6

that is waht i have been told as well as under thecarpet on the floor board, i know what it looks like but can’t seem to locate… maybe i need to look again, and open my eyes…lol , thanks for the help


#7

It is a simple aluminum box with two large wire connectors on one side and a plate cover held with a single screw for access to the PROM chip. It may be in a black plastic sleeve. IIRC, a single bolt holds it in place. You can’t miss the big wire harness running to it.


#8

A nice place to put it would be just above the passenger’s right foot where the floor becomes the firewall. Computer–firewall? Sounds kind of familiar. It was located there in a 1985 Cadillac but it could be in the ashtray for all I know. There are Haynes manuals everywhere with computer locations in them.