Description
Part Description
This chassis brain box transfer case control module was removed from a 2020 Toyota Tacoma donor vehicle. The electronic control unit carries OEM ID number 89224-04070 and has been professionally inspected by our parts team. This genuine Toyota component is currently on our shelf and ready for immediate shipment.
The chassis brain box serves as the electronic control module for the transfer case system in 4WD Toyota Tacoma trucks. This critical component manages the engagement and operation of the four-wheel drive system. Common replacement needs include electronic failure, water damage from off-road use, or accident-related damage to the dashboard area where this module is typically mounted.
603 Auto Salvage maintains an inventory of over 50,000 used auto parts from more than 1,100 vehicles in our Plaistow, NH facility. Our experienced team can help you find the right transfer case control module for your Toyota truck. Browse our online inventory or call us to verify compatibility and availability for your specific vehicle. 50,000+ parts in stock from over 1,100 vehicles. Contact us or call (603) 392-7313 for anything you need.
Part Specifications
| Part | Chassis Brain Box Transfer Case Control Module |
| Interchange # | 14572 |
| OEM Part Number | 89224-04070 |
| Side | N/A |
| Part Grade | X — Grade X – Inspected electronic control module, on shelf ready to ship |
| Warranty | 90-Day Warranty (Standard warranty for electronic control modules) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2020 TOYOTA TRUCKS TACOMA |
| VIN | N/A |
| Vehicle Stock # | BCM2020 |
Our Testing & Inspection Process
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Chassis Brain Box Transfer Case Control Module:
| ✅ Housing Integrity | Case inspected for cracks or damage |
| ✅ Connector Condition | Electrical connectors checked for corrosion or damage |
| ✅ Mounting Points | Verified mounting tabs and brackets are intact |
| ✅ Part Number Verification | OEM part number 89224-04070 confirmed |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #14572, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2020 | Toyota | Tacoma | 4WD models with transfer case – 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
What is a chassis brain box in a Toyota Tacoma?
The chassis brain box is an electronic control module that manages the transfer case operation in 4WD Toyota Tacoma trucks. It controls the engagement and disengagement of four-wheel drive mode.
How do I know if my transfer case control module is failing?
Common symptoms include 4WD system not engaging, warning lights on the dashboard, or error messages related to the transfer case system. Professional diagnosis is recommended to confirm the control module is the issue.
Is this part compatible with all 2020 Toyota Tacoma models?
This control module is designed for 4WD equipped Tacoma models. Contact us with your VIN to verify exact compatibility for your specific vehicle configuration.
Does this include programming or installation?
This is the physical control module only. Programming and installation should be performed by a qualified technician familiar with Toyota 4WD systems.
Where is the chassis brain box located in a Tacoma?
The transfer case control module is typically mounted in the right-hand side of the dashboard area. Professional installation is recommended due to the electronic connections required.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| Toyota OEM Part Number | 89224-04070 |
| Interchange Number | 14572 |
| Stock Number | BCM2020 |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $300-450 | 1 year | Brand new, longest wait time |
| Aftermarket | $200-350 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $175-225 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $150 | 90-Day Warranty | Tested, Grade X, ships in 24hrs |
Installation Notes
- Disconnect battery before removing or installing electronic control modules
- Take photos of connector positions before disconnection for proper reassembly
- Handle the module carefully to avoid static electricity damage to internal circuits
- Verify all connections are secure and properly seated 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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