The Wait Is Over.
Toyota Finally Gets the Accessport — and It Changes Everything.
 
Pair it with a custom calibration from CAMTuning for even more gains and drivability improvements.
 
The Cobb Accessport V3 is the most proven, flexible, and user-friendly ECU upgrade solution for modern Toyota platforms. It unlocks power that’s already in your vehicle by replacing conservative factory settings with smarter, more performance-oriented calibrations. Follow Cobb’s staged OTS path or step up to a true custom tune tailored to your build, fuel, and driving style.
This is the last engine management solution you’ll ever need.
Why It Matters
The Accessport installs in-cabin and becomes your new command center:
Monitor up to six live parameters on a high-resolution display
Flash ECU & TCM calibrations in minutes
Load up to 100 maps (OTS + customs)
Customize gauge layouts for street, track, towing, or dyno
Optional custom bezel colors and thousands of mounting solutions
If you’ve ever wished you could see what the ECU is doing — or change how it behaves — this is the tool.
Toyota-Specific Advantage
This version of the Accessport also flashes the TCM (transmission computer).
That means:
Smarter shift points
Firmer or smoother shift feel (your choice)
Skip-shift logic adjustments
Higher torque limits where appropriate
Better gear selection for power and towing
Bottom line: Toyota’s automatic transmission finally behaves like you want it to.
Gateway Bypass Harness Included
Some Toyota models require a Gateway Bypass Harness for initial communication and ROM reading. It’s in the box. Just connect:
OBD-II → Harness
Harness → Gateway Connector
Harness → Accessport
After setup, you won’t need it for regular map changes or uninstalling.
(Installation documentation linked on the page.)
⚠️ Warning: Do not install the Accessport over anything other than OEM or Cobb software. If you’re unsure, ask before flashing — we’re happy to help.
ECU MAP OPTIONS
Stage 0 — Stock calibration, monitoring only
Stage 1 (87/91/93) — Optimized for pump gas, bolt-on friendly
Performance Tow — Power under control, thermal strategy preserved
Custom CAMTuning calibrations available for modified vehicles or specific goals.
TCM MAP OPTIONS
You can flash three different transmission personalities:
Simulated Stock
OEM Tacoma/4Runner shift behavior — familiar baseline.
OEM+
Sporty, refined, daily-friendly improvement.
Moderately higher shift points
More responsive downshifts
Modest throttle response increase
Higher torque limits
Sport
Performance-first for drivers who want every bit of response.
Increased shift points
Faster downshifts
Noticeably sharper mid-throttle response
Aggressive torque limit strategy
In Summary
✔️ Best-in-class ECU/TCM control for Toyota
✔️ User-friendly and proven reliable
✔️ Gateway harness included
✔️ Works with OTS or full CAMTuning custom calibrations
✔️ Immediate gains + long-term upgrade path
This is the platform Toyota tuning has been waiting for.