Description
Part Description
This Engine Control Module (ECM) was removed from a 2013 GM Trucks Express 1500 with a 5.3L engine. The ECM, also known as the engine brain box, carries ID number 24235340 and has been thoroughly inspected by our technicians. This unit is currently on our shelf and ready to ship immediately upon order.
The Engine Control Module is the central computer that manages your vehicle’s engine performance, fuel injection, ignition timing, and emissions systems. When an ECM fails, symptoms include poor fuel economy, rough idling, stalling, or the vehicle not starting at all. A faulty ECM can also trigger check engine lights and cause the vehicle to enter limp mode, making replacement essential for proper vehicle operation.
603 Auto Salvage maintains an inventory of over 50,000 quality used auto parts from more than 1,100 vehicles. Our experienced team can help you find the exact ECM you need for your GM truck. Contact us to verify compatibility with your specific vehicle or browse our extensive online inventory for additional GM truck 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 Brain Box |
| Interchange # | 1973 |
| OEM Part Number | 24235340 |
| Side | N/A |
| Part Grade | X — Grade X – Inspected and ready to ship, located in rear engine compartment |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2013 GM TRUCKS EXPR15 |
| VIN | N/A |
| Vehicle Stock # | EBX5311 |
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 Brain Box:
| ✅ Physical Condition | Housing inspected for cracks or damage |
| ✅ Connector Pins | All electrical connections verified clean and intact |
| ✅ Part Number Verification | OEM ID 24235340 confirmed and documented |
| ✅ Mounting Points | All mounting tabs and brackets checked for integrity |
| ✅ Internal Components | No signs of water damage or corrosion detected |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #1973, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2013 | GM Trucks | Express 1500 | 5.3L engine with ID 24235340 – 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 to be programmed for my 2013 Express 1500?
Yes, most ECMs require programming to match your vehicle’s VIN and security system. Contact a qualified technician or dealership for proper programming after installation.
How do I know if my Engine Control Module is failing?
Common symptoms include check engine lights, poor fuel economy, rough idling, stalling, or the vehicle not starting. A diagnostic scan can confirm ECM-related fault codes.
What is the difference between ECM, PCM, and ECU?
ECM (Engine Control Module) specifically controls engine functions, while PCM (Powertrain Control Module) controls both engine and transmission. ECU is a general term for Electronic Control Unit.
Can I install this ECM myself?
While physically replacing the ECM is straightforward, it requires programming and may need security system relearning. Professional installation is recommended for proper setup.
What causes Engine Control Modules to fail?
Common causes include electrical surges, water damage, extreme temperatures, vibration, and normal wear over time. Proper installation and avoiding electrical issues can extend ECM life.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| GM Part ID | 24235340 |
| Interchange Number | 1973 |
| Engine Size | 5.3L |
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 | $150-250 | 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 wiring connections before disconnection for reference
- Handle ECM carefully and avoid static electricity – use anti-static precautions
- Ensure all connections are clean and tight before powering up system
- Have vehicle 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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