cybex ecu Syvecs x 555 AWD Controller (GR Corolla) – 555 Engineering Garage

cybex ecu Syvecs x 555 AWD Controller (GR Corolla) – 555 Engineering GarageSyvecs Controllers purchased through 555 Engineering have several exclusive features: Co branded with Syvecs reflecting our unique R&D collaboration Free Mounting Plate Pre updated and configured. Just plug and play Transfer Case Temperature Sensor Connector (sensor and harness sold separately) Unique firmware calibration for Transfer Case Temperature sensing Free Pre Configured & Up to Date Firmware Every unit ships with the latest Syvecs firmware,

Syvecs Controllers purchased through 555 Engineering have several exclusive features:

• Co-branded with Syvecs reflecting our unique R&D collaboration
• Free Mounting Plate
• Pre-updated and configured. Just plug and play
• Transfer Case Temperature Sensor Connector (sensor and harness sold separately)
• Unique firmware calibration for Transfer Case Temperature sensing

Free Pre-Configured & Up-to-Date Firmware

- Every unit ships with the latest Syvecs firmware, already set up with the correct limp-mode parameters.

- Because we work directly with the Syvecs Technical Team, you always get the newest features and revisions—no extra flashing or downloads required.

Free Wrinkle Black Anodized Mounting Plate for your new AWD Controller. 

- Clean, Secure Installation – No Zip Ties Required

- Syvecs controllers purchased elsewhere typically require zip-tie mounting, which can lead to a loose fit and added vibration.

- Our solution includes a bolt-in mounting bracket for a solid, OEM-like install with no added noise, vibration, or harshness (NVH) — just a clean, professional finish.

Transfer Case Temperature Sensor Harness allows your new AWD Controller to properly read and protect your Transfer Case. 

- From the factory, the GR Corolla’s transfer case has no dedicated temperature sensor — the ECU simply estimates it.

- Our harness adds a real temperature sensor, restoring Toyota’s original safety intent by enabling accurate limp mode activation to protect your drivetrain when it matters most.

Expert Support from GR Corolla Specialists

- When you buy from us, you get ongoing support backed by real GR Corolla experience.

- We actively develop and test new features for these controllers — we're not just a generic reseller. You won’t be redirected elsewhere — you’ll get answers from the team that actually uses and builds with the product.

Free Shipping to the Continental 48 States!

Standard Controllers are stocked here in California, no drop shipping. 

Pot Controllers are also now kept in stock!

This controller is what we couple with our Transfer Case Cooler for extended track sessions as explained here on SavageGeese around the 23 minute mark.

The Corolla GR version of the controller replicates all the OEM CAN information as well as pick up lots of variable from the OEM Can to link into the control strategies like Steering Angle, Brake Pressure, Rpm, Tps, Lateral G, Yaw, Long G, Speeds, Temperatures and mode switches

The Diff Mode Buttons on the Corolla is used for Map switching so allows users to be able to change between Awd Select 1, 2 and 3 duty maps live to adjust the AWD clamping.  You can also enable the burnout mode to be active when Hazards, Handbrake or external switch is active.

Syvecs also sells an optional loom to allow external Burnout switches to be mounted and Live adjustment potentiometers which gives drivers the ability to adjust the AWD Duty on the move or go 2wd from the flick of a switch. (Rally Cars only and must be ordered with the Unit)

Limp Protection options for large slip, high current, high temps which warn the driver but keep awd active unlike the OEM controllers which shut down the outputs which is not ideal with high horsepower or mid corner!

With the use of the Syvecs Scal Software, users can connect to the Device and adjust over 40 maps to adjust the control of the solenoids/motors used in the AWD systems

Firmware and Software gets updated regularly, check out http://www.syvecs.com/forum/ to make sure you have the latest!

Some of the Maps available

4 x Base Duty Tables

4 x Adders with enable maps:

Left Foot Braking

Front Slip

Rear Slip

Centre Slip

4 x Multipliers with enable maps

Steering Angle

AWD Temp

AWD Pressure

AWD Potentiometer

Tyre Diameter adjustment under sensors

2WD/ Burnout Mode 

Via Dedication Switched input

Via Can bus Message

Via OEM Functions

Limiters

Maximum Duty

Launch Control Limit

Duty Rate of Change

Decay/Hold Functions

Limp Mode

Over Current Protection

Over Slip Protection

Over Temp Protection

Cooling Pump control

AWD Cooling pump control logic

Datastream

The Syvecs AWD Unit also has a dedicated Can bus transmit area where users can send variables from the AWD to external control units for monitoring or to OEM Canbus system via custom Identifiers and byte structuring

Sensors / Switches

External sensors can be connected to the AWD module and then linearized in the Syvec's Scal Software