Description
Part Description
This engine control module (ECM) was removed from a 2003 Mazda Protege equipped with a 2.0L automatic transmission and sport shifter configuration. The unit is identified by part number FSBB-18-881C and has been thoroughly inspected for proper operation. This electronic control unit is currently on our shelf and ready for immediate shipment.
The engine control module is the brain of your vehicle’s engine management system, controlling fuel injection, ignition timing, emissions systems, and transmission shifting patterns. ECMs commonly fail due to electrical surges, moisture damage, or internal component degradation over time. When your ECM fails, you may experience poor fuel economy, rough idling, stalling, or transmission shifting problems.
603 Auto Salvage maintains over 50,000 quality used parts in stock from more than 1,100 vehicles. Our experienced team can help you find the exact ECM you need for your Mazda. Contact us to verify compatibility with your specific vehicle or browse our extensive online inventory for additional Mazda 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 Control Unit |
| Interchange # | 59708D |
| OEM Part Number | FSBB-18-881C |
| Side | N/A |
| Part Grade | X — Good working condition, inspected and ready to ship. Removed from 2.0L AT with sport shifter. |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2003 MAZDA PROTEG |
| VIN | N/A |
| Vehicle Stock # | PROTECM24 |
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 Integrity | All electrical connectors inspected for damage and corrosion |
| ✅ Housing Condition | ECM case checked for cracks, moisture damage, and physical integrity |
| ✅ Pin Condition | All connector pins verified straight and free of corrosion |
| ✅ Internal Function | Unit tested for proper electronic response and communication |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #59708D, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2003 | Mazda | Protege | 2.0L automatic transmission with sport shifter – Contact us for full compatibility verification |
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 2003 Mazda Protege?
This ECM is specifically from a 2003 Protege with 2.0L automatic transmission and sport shifter. Contact us with your VIN to verify exact compatibility with your vehicle’s configuration.
Does the ECM need to be programmed after installation?
Most Mazda ECMs require programming to match your vehicle’s VIN and security system. We recommend having installation and programming performed by a qualified technician.
What are signs that my ECM is failing?
Common symptoms include check engine lights, poor fuel economy, rough idling, stalling, hard starting, or transmission shifting problems. Professional diagnosis is recommended to confirm ECM failure.
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 controls engine and transmission functions for your Protege.
What interchange number does this ECM use?
This ECM uses interchange number 59708D, which helps identify compatible units across different part suppliers and salvage yards.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Mazda Part Number | FSBB-18-881C |
| Interchange Number | 59708D |
| Stock Number | PROTECM24 |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $450-650 | 1 year | Brand new, longest wait time |
| Aftermarket | $250-400 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $175-225 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $150 | 90-Day Warranty | Tested, Grade X, ships in 24hrs |
Installation Notes
- Disconnect battery before removing old ECM to prevent electrical damage
- Use anti-static precautions when handling the electronic module
- Ensure all electrical connections are clean and properly seated
- Have the ECM programmed by a qualified technician after installation
🔍 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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