Chevrolet ECU / ECM / PCM Services
Karman Auto offers Chevrolet and GM ECU / ECM / PCM services via mail-in — supporting many GM engine control unit families including the E37 (Cobalt / HHR / Equinox era), E38, E39, E78, E80, E82 LS series ECMs, Delco LS PCM generations, and the GMT800 / GMT900 generations. We support cloning and VIN programming for many Chevrolet, GMC, Cadillac, and Buick models from roughly 2000 through 2024, depending on ECM/PCM type, part number, and donor compatibility.
Available Services
Home › Chevrolet › ECU / ECM E37 ECU Clone Service ECU/PCM cloning is a specialized service designed to duplicate the data from the existing unit to a new or replacement unit, ensuring continuity in vehicle performance. Several scenarios necessitate this service, such as when an original unit fails and needs replacement, or during an [...]
Chevrolet Silverado ECU clone service covering 1500, 2500HD, and 3500HD across GMT800, GMT900, K2XX, and T1XX platforms — gas (4.8/5.3/6.0/6.2 L-series) and 6.6 Duramax diesel (LB7 through L5P). We clone your ECM onto a matched donor so the truck starts on your existing keys. Clone-only service — you supply both the failed ECU and a matching donor. Nationwide mail-in, 24-hour turnaround.
Chevrolet Epica ECU clone service for 2006-2011 models — 2.0 VCDi diesel (VM Motori) and 2.0 / 2.5 petrol, manual and automatic. Full flash plus EEPROM cloned to a matched donor so the car starts without dealer intervention. Clone-only service — you supply both the failed ECU and a matching donor. Nationwide mail-in, 24-hour turnaround, 12-month warranty.
Home › Chevrolet › ECU / ECM GM ECU VIN Programming Service (Chevy, GMC, Cadillac & Buick) Our GM ECU VIN Programming Service provides accurate VIN writing in Chevrolet, GMC, Cadillac, and Buick ECU/PCM modules. Important: This service updates the VIN only and does not make the vehicle start. Your car must already have a [...]
Home › Chevrolet › ECU / ECM GM Dealer Software File Purchase – Calibration File by VIN This service allows you to purchase a required calibration file from the dealer’s Service Programming System (SPS) for your GM vehicle. If your GM BCM’s flash cannot be read due to communication issues, we will obtain the necessary [...]
Not Sure Which Service to Choose?
If you are unsure which option matches your Chevrolet or GM module, the safest path is to email or text us photos before ordering: full label of the original module (the one you want serviced), full label of the donor module if you already have one, the part number, hardware revision, and software/calibration sticker, and a photo of the connector pinout if visible. We will confirm whether the service is supported for your specific part number and hardware revision before you order and ship.
Compatibility Warning
GM ECM/PCM services depend on the exact controller family (E37, E38, E39, E78, E80, E82, Delco LS, etc.) and the hardware revision. E37 to E37, Delco LS to matching Delco LS variant. Mismatched part numbers or different processor families cannot be cloned 1:1.
What to Ship
- Your original Chevrolet / GM module (the failed/locked unit), clearly marked “ORIGINAL”
- If applicable: a donor module, clearly marked “DONOR” — same part number family and hardware revision as the original
- Your order receipt printed, or order number written on a slip in the box
- Your return shipping address
- Ship to the address shown on your order receipt at checkout (we operate from 2 locations and route based on tool availability and turnaround)
Related Chevrolet Services
- Chevrolet ECU Clone Service
- Chevrolet ECU VIN Programming
- Chevrolet BCM / VBCM / Fuse Box Services
- Chevrolet TCM / Transmission Services
- Chevrolet Airbag / SDM Services
- Chevrolet Instrument Cluster / IPC Services
- All Chevrolet services
FAQ
Which GM ECMs are supported? E37 (Cobalt / HHR / Equinox era), E38 / E39 (LS-era trucks and Corvette), E78 / E80 / E82 (small-car GM), Delco LS PCM generations across Silverado / Sierra / Tahoe / Yukon / Suburban / Escalade and many other models from roughly 2000 through 2024.
Do I need to ship both modules for cloning? Yes — original plus a donor of the same hardware family.
What about Cadillac / GMC / Buick — same service? Yes — GM ECMs are shared across Chevrolet, Cadillac, GMC, and Buick. The bench process is identical.
What does the GM ECU VIN Programming service do? Writes your VIN into a donor ECM so it matches the rest of your vehicle. Required after a salvage rebuild or engine swap with a donor ECM that has the wrong VIN.