Where is the ECM computer located?

What does it cost to reprogram computer 1n 2001 buick century

Thanks for the answer. Now I know I can aford it.

1998 buick century 160,000 miles 3.1v6 engine. I can't get my radio to play while i'm driving. When I turn the key backwards in the ignition the radio plays, when I turn it frontwards right b4 I crank it it stil plays but as soon as I start the car it stays on for a few seconds and it cuts out. Power is geting to it because the radio is on its jus that no sound is coming out. What should I do? There is also a small oil leak I cant seem to locate

Thanks. I forgot to mention that the security lights keeps coming on. I saw another post wher a guy with the same model year and mileage was having the same problem and he said that his anti theft system was malfuntioning. He said he took it out and he hasnt had the problem since. The dash board light was off also but it came back in so I didn think anything of it until I saw that post. What do u suggest?

Thanks. It was the dern radio. My friend tried it in his jeep and it killed the battery. He had it playing for like half an hour to test it and it was so hot it burned him and was melting plastic. He said sometimes the front speakers would play and the back would b dead other times it wouldnt. Then the radio would b on and no sound then it would b off and music would play. It was a custom made radio was the amp and evrything built in. It killed my battery also and I ended up having a buy a new one. The only problem now is the dimmer. Sometimes my gauge cluster is bright and sometimes its dim.

The temp switch sends a signal to the PCM which then goes to the relay and then the fan. What is the PCM?

Where are the fuses located and is there a map of these?

I have a 1990 Buick Century. Car started to stall when I would hit the gas. Took it to a shop and they said it was the ecu and it would cost around $400 to fix. Well I am uneployed and do not have $400 so I wanna try to either reset the ecu or buy a used one and replace it. The only problem I have is to locate the ecu. Please help! Only family car ! Or do you think by resteting it it will help

Thanks

Steve

Thank you I will take a look for it :) When I say resting it I mean by disconnecting the battery for about 30 min so the computer loses power then connecting the battery back and starting the car. I read online that kinda resets the ecu and just leave the car running for about 30 mins so the ecu re-learns? What do you think? Or should I just replace it. Thanks again

Steve

Hi I replaced the ECU and the car drove fine for one day then today I drove it around city driving and no problem then I got onto the highway and the car stalled. I unpluged the wires from the ecu and put them back on- the car started. I got off the highway and parked the car for 15 minutes and tried to start it back up and it would not start so I unpluged the ECU again and this time it would not start so I kept unplugging and plugging the wires and trying to start it after about 10 tries the car started again drove it for like 10 miles then parked it and the same thing happened so I unplugged and replugged again and after about 10 times it started. Then while I was driving it stalled again on the road and I did the same thing unplugged and replugged wires, OMG PLEASE HELP! Like I said I bought a new ECU after the mechanic told me it was it. What else could it be?

Thank You Steve