Description
Part Description
This engine control module (ECM) was removed from a 2004 Scion xA and is designed for automatic transmission applications. The unit carries OEM part number 89666-52310 and has been thoroughly inspected by our technicians. This ECM is currently on our shelf and ready to ship immediately upon order.
The engine control module is the brain of your vehicle’s engine management system, controlling fuel injection, ignition timing, emissions systems, and transmission shifting. ECMs commonly fail due to electrical surges, water damage, or internal component degradation over time. When your ECM fails, you may experience poor fuel economy, rough idling, stalling, or the vehicle may not start at all.
At 603 Auto Salvage, we maintain over 50,000 quality used parts from more than 1,100 vehicles in our Plaistow, NH facility. Our experienced team carefully inspects each electronic component to ensure reliable performance. Contact us to verify compatibility with your specific vehicle or browse our extensive online inventory for additional Scion 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 # | 60379 |
| OEM Part Number | 89666-52310 |
| Side | N/A |
| Part Grade | X — Grade X – Inspected electronic control module, tested and ready to ship |
| Warranty | 90-Day Warranty (Standard warranty for tested electronic components) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2004 SCION XA |
| VIN | N/A |
| Vehicle Stock # | EBX4946 |
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 clean and undamaged, no corrosion detected |
| ✅ Housing Integrity | Case intact with no cracks or water damage signs |
| ✅ Circuit Board | Internal components visually inspected, no burn marks |
| ✅ Part Number Verification | OEM number 89666-52310 confirmed and documented |
| ✅ Electrical Testing | Basic electrical continuity verified |
| ✅ Storage Condition | Properly stored in climate-controlled environment |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #60379, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2004 | Scion | xA | Automatic transmission applications – 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 2004 Scion xA?
This ECM is specifically from a 2004 Scion xA with automatic transmission. However, ECM compatibility depends on your exact engine type and transmission. Contact us with your VIN for precise fitment verification.
Does this ECM need to be programmed?
Most ECMs require programming to match your vehicle’s VIN and security system. You’ll need to have this done at a dealership or qualified automotive locksmith after installation.
What are signs that my ECM is failing?
Common symptoms include engine stalling, poor fuel economy, rough idling, transmission shifting problems, or the check engine light staying on. The vehicle may also fail to start completely.
How do I know if this is the right part number?
This ECM has OEM part number 89666-52310. You can verify this matches your current ECM by checking the label on your existing unit or contacting us with your vehicle’s VIN.
What’s included with this ECM purchase?
You receive the complete engine control module unit as shown. Programming, installation, and any required security system relearning procedures are not included and must be performed separately.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| OEM Part Number | 89666-52310 |
| Interchange Number | 60379 |
| Stock Number | EBX4946 |
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 | $200-350 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $125-175 | 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 wiring harnesses
- Handle the ECM carefully – avoid static electricity by grounding yourself first
- Ensure all connectors click securely into place during installation
- 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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