Description
Part Description
This Engine Control Module (ECM) was removed from a 2010 Chevrolet Cobalt donor vehicle equipped with a 2.2L engine (VIN 5, 8th digit). The electronic control unit has been professionally inspected and tested to ensure proper functionality. This OEM part is currently on our shelf and ready for immediate shipment to get your vehicle back on the road.
The Engine Control Module serves as the brain of your vehicle’s engine management system, controlling fuel injection, ignition timing, emissions systems, and other critical engine functions. ECM failure is common in these vehicles due to electrical issues, corrosion, or component wear over time, often causing symptoms like rough idle, poor fuel economy, check engine lights, or no-start conditions. A replacement ECM may require programming to match your vehicle’s VIN and specifications.
At 603 Auto Salvage, we maintain over 50,000 quality used parts in stock from more than 1,100 vehicles in our Plaistow, NH facility. Our experienced team carefully inspects each part to ensure you receive reliable OEM components at significant savings over dealer prices. Contact us today to verify compatibility and availability, or browse our extensive online inventory for additional Chevrolet Cobalt parts. 50,000+ parts in stock from over 1,100 vehicles. Contact us or call (603) 392-7313 for anything you need.
Part Specifications
| Part | Engine Control Module (ECM) – Electronic Brain Box |
| Interchange # | 862 |
| OEM Part Number | 12605766 |
| Side | N/A |
| Part Grade | X — Grade X – Inspected and tested, ready to ship. May require programming. |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules due to complexity of programming requirements) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2010 CHEVROLET COBALT |
| VIN | N/A |
| Vehicle Stock # | COBECM24 |
Our Testing & Inspection Process
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Engine Control Module (ECM) – Electronic Brain Box:
| ✅ Connector Pins | All pins intact and free of corrosion |
| ✅ Housing Integrity | No cracks or damage to ECM case |
| ✅ Circuit Board | Visually inspected for burn marks or component damage |
| ✅ Mounting Points | All mounting tabs and brackets secure |
| ✅ Part Number Verification | Confirmed OEM part number 12605766 |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #862, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2010 | Chevrolet | Cobalt | 2.2L engine (VIN 5, 8th digit) – Contact us for full compatibility list |
Questions? Need a shipping quote? Call us now:
603 Auto Salvage | 233 Main St, Plaistow, NH 03865
Mon–Fri 8am–4:30pm | Sat 8am–2pm | Sun Closed
Warranty & Shipping
Frequently Asked Questions
Will this ECM work in my 2010 Chevrolet Cobalt?
This ECM fits 2010 Cobalt models with 2.2L engines (VIN 5 in 8th position). Programming may be required to match your vehicle’s VIN and specifications. Contact us to verify compatibility with your specific vehicle.
Does the ECM need to be programmed after installation?
Most ECM replacements require programming to match your vehicle’s VIN, security system, and calibration settings. This typically must be done by a dealer or qualified technician with the proper diagnostic equipment.
What are signs of ECM failure in a Chevrolet Cobalt?
Common symptoms include check engine light, rough idle, poor fuel economy, stalling, no-start conditions, or transmission shifting issues. Professional diagnosis is recommended to confirm ECM failure before replacement.
How much does a new ECM cost from the dealer?
New ECMs from Chevrolet dealers typically cost $800-1200 plus programming fees. Our used OEM part offers significant savings while maintaining original equipment quality and specifications.
What is interchange number 862?
Interchange 862 is the industry standard reference number for this ECM application. It helps identify compatible ECMs across different model years and ensures you get the correct part for your vehicle.
Can I install this ECM myself?
While physical installation is straightforward, ECM replacement typically requires professional programming and may involve security system relearn procedures. We recommend professional installation for best results.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| GM Part Number | 12605766 |
| Interchange Number | 862 |
| Engine Code | VIN 5 (8th digit) |
| Engine Size | 2.2L (4-134) |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $800-1200 | 1 year | Brand new, longest wait time |
| Aftermarket | $400-600 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $150-250 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $100 | 90-Day Warranty | Tested, Grade X, ships in 24hrs |
Installation Notes
- Disconnect battery before removing old ECM to prevent electrical damage
- Take photos of connector positions before disconnection for reference
- Handle ECM carefully and avoid static electricity – use anti-static precautions
- Ensure all connectors are fully seated and locked after installation
- Have vehicle towed to programming location – may not start without programming
🔍 Free Fitment Check
Call us with your VIN and we will verify compatibility for free. No obligation, no pressure — just answers.
Our parts specialists check interchange data in real-time
Estimated Shipping Costs by Region
This part ships via FedEx Ground. Prices are estimates — call for an exact quote to your zip code.
| Region | Estimated Cost | Transit Time |
|---|---|---|
| New England (NH, MA, ME, VT, CT, RI) | $15 – $30 | 1–3 business days |
| Northeast (NY, NJ, PA, MD, VA) | $20 – $40 | 2–4 business days |
| Southeast (FL, GA, NC, SC, TN) | $25 – $45 | 3–5 business days |
| Midwest (OH, MI, IL, IN, WI, MN) | $30 – $50 | 3–5 business days |
| Southwest (TX, AZ, NM, OK) | $35 – $55 | 4–6 business days |
| West Coast (CA, OR, WA) | $40 – $65 | 5–7 business days |
Local pickup is always free. Free delivery within 30 miles of Plaistow, NH.
Why Buy From 603 Auto Salvage?
- 50,000+ parts in stock from over 1,100 vehicles on-site in Plaistow, NH
- Every part inspected before listing — no guesswork
- Family-owned salvage yard — real people, not a call center
- 90-Day Warranty on this part
- Fast shipping — most orders ship within 24 hours
- Competitive pricing — save 50–70% vs dealer prices
- Serving New Hampshire, Massachusetts & all 50 states
Ready to order? Call (603) 392-7313 or add to cart above. We are here to help.




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