Description
Part Description
This Engine Control Module (ECM) was removed from a 2012 Chevrolet Cruze equipped with an automatic transmission. The electronic control unit carries ID number 12643636 and has been thoroughly inspected by our technicians. This OEM part is currently on our shelf and ready for immediate shipment.
The Engine Control Module is the central computer that manages your vehicle’s engine performance, fuel injection, ignition timing, and emissions systems. ECMs commonly fail due to electrical surges, water damage, or internal component degradation over time. When your ECM fails, you may experience no-start conditions, poor fuel economy, rough idling, or various engine warning lights.
At 603 Auto Salvage, we maintain over 50,000 quality used auto parts from more than 1,100 vehicles in our Plaistow, NH facility. Our experienced team carefully inspects each part to ensure reliability. Browse our extensive inventory online or contact us to verify compatibility and availability for your specific vehicle. 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 Control Unit |
| Interchange # | 2768 |
| OEM Part Number | 12643636 |
| Side | N/A |
| Part Grade | X — Grade X – Inspected electronic control module, ready to ship |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2012 CHEVROLET CRUZE |
| VIN | N/A |
| Vehicle Stock # | PCM1126 |
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 Control Unit:
| ✅ Connector Pins | All pins straight and corrosion-free |
| ✅ Housing Integrity | No cracks or damage to ECM case |
| ✅ Water Damage | No signs of moisture or corrosion |
| ✅ Circuit Board | Internal components visually inspected |
| ✅ Part Number Verification | ID 12643636 confirmed and documented |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #2768, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2012 | Chevrolet | Cruze | Automatic transmission – 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 need to be programmed for my 2012 Chevy Cruze?
Yes, this ECM will need to be programmed by a qualified technician or dealership to match your vehicle’s VIN and specific configuration. Programming is required for proper operation.
How do I know if my Cruze ECM is failing?
Common symptoms include check engine lights, no-start conditions, poor fuel economy, rough idling, or erratic engine performance. A diagnostic scan can confirm ECM-related trouble codes.
Is this the same as a PCM or ECU?
ECM (Engine Control Module), PCM (Powertrain Control Module), and ECU (Electronic Control Unit) are often used interchangeably. This unit specifically controls engine functions in your 2012 Cruze.
What causes ECM failure in Chevrolet Cruze vehicles?
ECMs can fail due to electrical surges, water damage from floods or leaks, overheating, or normal wear of internal components over time. Power supply issues are also common causes.
Can I install this ECM myself?
While physically installing the ECM is straightforward, professional programming is required afterward. The module must be programmed to your vehicle’s VIN and specifications to function properly.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| ECM ID Number | 12643636 |
| Interchange Number | 2768 |
| Stock Number | PCM1126 |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $400-600 | 1 year | Brand new, longest wait time |
| Aftermarket | $250-400 | 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 disconnecting wires
- Handle ECM carefully – avoid static electricity and moisture exposure
- Have ECM programmed immediately after installation for proper operation
- Clear any stored trouble codes after programming is complete
🔍 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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