Description
Part Description
This Engine Control Module (ECM) was removed from a 2002 GMC Safari and is the main computer that controls your vehicle’s engine management system. Also referred to as the engine brain box or powertrain control module (PCM), this unit carries ID number 12210553 and has been professionally inspected. The part is currently on our shelf and ready for immediate shipping.
The Engine Control Module is critical for proper engine operation, controlling fuel injection, ignition timing, emissions systems, and other vital engine functions. Common reasons for ECM replacement include electrical failures, water damage, internal component failure, or diagnostic trouble codes that trace back to the control module. When your ECM fails, symptoms typically include no-start conditions, poor engine performance, failed emissions tests, or multiple warning lights on your dashboard.
At 603 Auto Salvage, we maintain over 50,000 used auto parts in stock from more than 1,100 vehicles in our Plaistow, NH facility. Our experienced team can help you find the right ECM for your GMC Safari or assist with compatibility questions. Contact us today or browse our extensive online inventory 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 # | 5917 |
| OEM Part Number | 12210553 |
| Side | N/A |
| Part Grade | X — Grade X – Inspected electronic control module, ready to ship from shelf stock |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules and computer components) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2002 GMC SAFARI |
| VIN | N/A |
| Vehicle Stock # | GMC6331 |
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:
| ✅ Physical Housing Inspection | Checked for cracks, corrosion, and connector damage |
| ✅ Connector Pin Condition | Verified all electrical pins are intact and undamaged |
| ✅ Internal Component Check | No signs of water damage or burnt components visible |
| ✅ Part Number Verification | Confirmed ID number 12210553 matches GMC specifications |
| ✅ Mounting Bracket Condition | All mounting points and brackets are secure |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #5917, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2002 | GMC | Safari | Contact us for full compatibility list and programming requirements |
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 2002 GMC Safari?
Yes, most ECMs require programming to match your vehicle’s VIN and specific options. Contact a qualified technician or dealership for programming services after installation.
What are common signs that my GMC Safari ECM is failing?
Common symptoms include engine not starting, rough idle, poor fuel economy, failed emissions tests, check engine light, and multiple warning lights on the dashboard.
Is this the same as a PCM or engine computer?
Yes, ECM (Engine Control Module), PCM (Powertrain Control Module), and engine computer all refer to the same component that manages your vehicle’s engine functions.
How do I know if this ECM will fit my GMC Safari?
This ECM fits 2002 GMC Safari models with the matching part number 12210553. Contact us with your VIN for exact compatibility verification.
What causes ECM failure in GMC Safari vehicles?
Common causes include electrical surges, water damage, overheating, age-related component failure, and voltage spikes from alternator or battery issues.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| GM Part ID | 12210553 |
| Interchange Number | 5917 |
| Stock Number | GMC6331 |
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 connector positions before disconnecting wiring harnesses
- Handle the ECM carefully and avoid static electricity by grounding yourself
- ECM will require professional programming after installation to match your VIN
- Clear any stored trouble codes after successful programming and 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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