Description
Part Description
This engine control module (ECM) was removed from a 2009 Honda Civic and has been professionally inspected for proper operation. The unit is located behind the battery tray and carries OEM part number 37820-RNA-A22 for US market vehicles with manual transmission. This ECM is currently on our shelf and ready for immediate shipment.
The engine control module is the brain of your Honda’s fuel injection and ignition systems, controlling critical functions like air-fuel mixture, timing, and emissions. ECMs commonly fail due to electrical surges, water damage, or internal component degradation, causing symptoms like rough idle, poor fuel economy, stalling, or check engine lights. A faulty ECM can leave your vehicle inoperable, making replacement essential for proper engine function.
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 inspects every electronic component to ensure reliable performance. Contact us to verify compatibility with your specific Honda Civic or browse our extensive online inventory for additional Honda 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 # | 52113 |
| OEM Part Number | 37820-RNA-A22 |
| Side | N/A |
| Part Grade | A — Grade A – Good working condition, 184K miles, inspected and ready to ship |
| Warranty | 90-Day Warranty (Standard electronic component coverage for tested ECM units) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2009 HONDA CIVIC |
| VIN | N/A |
| Vehicle Stock # | 0413243631 |
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 present |
| ✅ Housing Integrity | Case intact with no cracks or water damage |
| ✅ Circuit Board | Internal components visually inspected, no burn marks |
| ✅ Part Number Verification | Confirmed OEM part number 37820-RNA-A22 |
| ✅ Mounting Tabs | All mounting points secure and undamaged |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #52113, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2009 | Honda | Civic | Manual transmission only – US market vehicles |
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 2009 Honda Civic?
Yes, this ECM will require programming by a Honda dealer or qualified technician to match your vehicle’s VIN and security system. The unit comes pre-loaded with base software but needs vehicle-specific calibration.
How do I know if my Honda Civic ECM is failing?
Common symptoms include check engine lights, rough idle, stalling, poor fuel economy, or the engine not starting. A diagnostic scan can confirm ECM-related error codes before replacement.
Is this ECM compatible with automatic transmission Honda Civics?
No, this specific ECM is programmed for manual transmission vehicles only. Automatic transmission Civics require different ECM programming and part numbers.
What’s included with this Honda Civic ECM purchase?
You receive the complete ECM unit as shown, but programming and installation are not included. We recommend professional installation and programming for proper operation.
Can I return this ECM if it doesn’t work in my Honda?
Yes, this ECM is covered by our 90-day warranty against defects. However, compatibility issues due to incorrect application or programming problems are not covered under warranty.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Honda OEM Part Number | 37820-RNA-A22 |
| Interchange Number | 52113 |
| Stock Number | 0413243631 |
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 | $100-150 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $75 | 90-Day Warranty | Tested, Grade A, ships in 24hrs |
Installation Notes
- Disconnect battery and wait 10 minutes before removing old ECM to prevent electrical damage
- Take photos of connector positions before disconnection for proper reassembly
- Handle ECM by edges only and avoid touching circuit board components
- Ensure all connectors click securely into place and apply dielectric grease to prevent corrosion
- Have ECM professionally programmed immediately after installation for proper vehicle 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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