ECM Modules

Shop ECM Modules by vehicle and part number. Check programming and installation requirements before ordering. View the setup guide below.

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ECM Modules: programming and setup guide

Find replacement engine control modules (ECMs), engine computers and PCMs by vehicle and OEM part number. Browse VIN-programmed modules for Chevrolet, GMC, Cadillac, Buick and other makes. Confirm your vehicle, engine and original module number before ordering.

VIN programming and installation

VIN programming prepares the module for your vehicle. Depending on the application, installation may also require VATS/immobilizer relearn and crankshaft variation relearn. Eligible GM ECM listings offer an optional OBD101 interface for supported relearns through the Auto101 Pro app.

Shopping for a GM E38 ECM?

Check the module family, service number and exact vehicle application. Look for E38 and the number on your original ECM, then review the listing requirements. Contact Auto101 with your VIN and module number if you need compatibility help.

Looking for a body control module? Browse our BCM replacements and cloning options.