Description
Part Description
This engine control module (ECM) was removed from a 2001 GM S10/S15 pickup truck with a 2.2L engine. The electronic control unit has been professionally inspected and tested to ensure proper functionality. This OEM part is currently on our shelf and ready for immediate shipment to get your vehicle 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 other critical engine functions. ECMs commonly fail due to electrical surges, corrosion, or internal component wear, causing symptoms like poor fuel economy, rough idling, stalling, or check engine lights. A faulty ECM can leave your vehicle undriveable, making replacement essential for proper engine operation.
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 and performance. Contact us to verify compatibility with your specific vehicle or browse our extensive inventory online to find the parts you need. 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 # | 5918 |
| OEM Part Number | 12202170 |
| Side | N/A |
| Part Grade | X — Grade X – Inspected and tested, ready to ship from shelf stock |
| Warranty | 90-Day Warranty (Standard electronic component warranty coverage) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2001 GM TRUCKS S10S15 |
| VIN | N/A |
| Vehicle Stock # | PCM5146 |
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 free of corrosion |
| ✅ Housing Integrity | Case intact with no cracks or damage |
| ✅ Circuit Board | Internal components visually inspected |
| ✅ Mounting Points | All mounting tabs and brackets secure |
| ✅ Part Number Verification | OEM part number 12202170 confirmed |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #5918, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2001 | GM Trucks | S10/S15 | 2.2L engine – 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 need to be programmed for my 2001 S10?
Most ECMs require programming to match your vehicle’s VIN and options. Contact your dealer or qualified technician for programming services after installation.
How do I know if my engine control module is bad?
Common symptoms include check engine lights, poor fuel economy, rough idling, stalling, or failure to start. Professional diagnosis is recommended to confirm ECM failure.
Is this the correct ECM for my 2.2L S10 engine?
This ECM fits 2001 GM S10/S15 trucks with 2.2L engines. Verify your engine size and contact us with your VIN for exact compatibility confirmation.
What’s included with this engine control module?
You receive the complete ECM unit as shown. Wiring harnesses and connectors are typically not included unless specifically noted.
Can I install this ECM myself?
ECM replacement requires basic mechanical skills but professional programming is typically needed. Installation involves disconnecting the battery and swapping the unit in the engine compartment.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| GM Part Number | 12202170 |
| Interchange Number | 5918 |
| Stock Number | PCM5146 |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $300-500 | 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 negative terminal before removing old ECM
- Take photos of connector positions before disconnecting wiring
- Handle ECM carefully to avoid static electricity damage
- Ensure all connectors click securely into place during installation
- Have ECM programmed by dealer or 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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