Description
Part Description
This engine control module (ECM) was removed from a 2008 Cadillac CTS equipped with a 3.6L engine (VIN 7 8th digit). The unit carries ID number 12614423 and has been thoroughly inspected by our technicians. This electronic control unit is currently on our shelf and ready for immediate shipment to get your Cadillac back on the road.
The engine control module is the brain of your vehicle’s engine management system, controlling fuel injection, ignition timing, emissions systems, and various engine sensors. ECMs commonly fail due to electrical surges, water damage, or internal component degradation over time. When your ECM fails, symptoms include no-start conditions, rough idle, poor fuel economy, or various engine warning lights.
603 Auto Salvage maintains over 50,000 used auto parts in stock from more than 1,100 vehicles in our Plaistow, NH facility. Our experienced team can help you find the exact ECM or other components you need for your Cadillac. Browse our online inventory or contact us directly to verify compatibility and availability. 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 # | 1036 |
| OEM Part Number | 12614423 |
| Side | N/A |
| Part Grade | X — Good working condition, inspected and ready to ship |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2008 CADILLAC CADCTS |
| VIN | N/A |
| Vehicle Stock # | 0617256010 |
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 intact and free of corrosion |
| ✅ Housing Integrity | No cracks or damage to ECM case |
| ✅ Circuit Board | Internal components visually inspected |
| ✅ Mounting Points | All mounting tabs and brackets secure |
| ✅ Part Number Verification | ID 12614423 confirmed for 3.6L application |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #1036, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2008 | Cadillac | CTS | 3.6L engine, VIN 7 (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 need programming for my 2008 Cadillac CTS?
Yes, this ECM will require programming by a qualified technician or dealership to match your vehicle’s VIN and security system. Programming ensures proper communication with your vehicle’s other modules.
How do I know if my ECM is failing?
Common symptoms include engine not starting, rough idle, stalling, poor fuel economy, check engine light, or multiple warning lights on the dashboard. A diagnostic scan can confirm ECM-related fault codes.
Is this the correct ECM for my 3.6L CTS?
This ECM is specifically for 2008 Cadillac CTS with 3.6L engine (VIN 7 as 8th digit). Verify your engine size and VIN code before ordering, or contact us for compatibility confirmation.
What is interchange number 1036 used for?
Interchange 1036 is an industry standard reference that helps identify compatible ECMs across different part suppliers and salvage yards. It ensures you get the correct module for your specific application.
Can I install this ECM myself?
While physical installation is straightforward, the ECM requires professional programming to function properly. Most customers have the part programmed at a dealership or qualified automotive shop after installation.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| GM Part ID | 12614423 |
| Interchange | 1036 |
| Engine Application | 3.6L VIN 7 |
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 | $100-150 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $75 | 90-Day Warranty | Tested, Grade X, ships in 24hrs |
Installation Notes
- Disconnect battery before removing or installing ECM to prevent electrical damage
- Use anti-static precautions when handling the electronic module
- Ensure all connectors are fully seated and locked in place
- Have the ECM programmed immediately after installation for proper operation
🔍 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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