Where is the TCM on a Silverado Sierra?
MIKE91B wrote: Swapping modules won’t help you and will most likely cause you more troubles you don’t want. Fuse 14 in the under hood junction block should be the TCM, it is a 15 amp fuse, make sure it is hot.
When did I replace my Sierra 1500 engine?
It’s a 2008 Sierra 1500 5.3 J-code. The AFM disaster caused me to replace the engine in October or I would have already traded it in. Any help would be greatly appreciated guys. Thanks. Re: Bad TCM, BCM, PCM, or ECM??
Why does my car have a single PCM?
The reason is your car’s computer system. These systems are primarily controlled by a single computer: the powertrain control module (PCM). This controls the engine control module (ECM) and the transmission control module (TCM).
What to do if your car ECM is not working?
The only way to be sure is to visit a mechanic with the proper computer. They can analyze your vehicle’s error codes, and let you know exactly what the problem is. If your ECM can’t make adjustments to your car’s timing or air to fuel ratio, the vehicle may not start at all.
Can a GM ECM be swapped with a GM PCM?
Read this scary Technical Service Bulletin from GM: GM and other manufacturers have issued service bulletins warning of the problems associated with swapping in used PCM, ECM and modules that aren’t specifically programmed to your VIN code and build code.
What does the PCM do in a Chevy truck?
by Alibaster Smith. The PCM, or powertrain control module, in your Chevy truck serves as the on-board diagnostic computer for your vehicle. The PCM controls everything from air-to-fuel ratio to generating fault or trouble codes for critical vehicle systems. If your PCM fails your Chevy truck can experience a wide range of problems.
Where to get replacement PCM, ECM, or module?
Where to get a replacement PCM, ECM, or module? program it to your VIN and build code, instead shop at a rebuilder. You’ll get a rebuilt unit with a warranty and it’ll be programmed to your VIN and Build code. You may still have to pay to get the anti-theft portion programmed, but at least you won’t damage the other modules in the system.
Can a PCM controller be swapped between vehicles?
“The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.