3-drive · COMPACT Discontinued Product

Our Compact model offers you High Performance at a Low Cost all in one body.

THC mounted img of NISSAN SERENA


THC mounted img of MAZDA DEMIO


THC mounted img of TOYOTA PRIUS


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3-drive · COMPACT Discontinued Product


Specialized Harness is sold separately.


for MAZDA Pulse Signal Acceleratars With Specialized Harness.


EURO series With Specialized Harness.

Actual size pattern paper

Please use in consideration of the mounting location.

Download (PDF in Japanese)
THC Actual size pattern paper



3-drive・COMPACT function icon
Compact All-in-One Body

This compact all-in-one body makes it possible to install in out of the way places such as storage box or near the steering wheel

Safety Start

"Safety" mode which starts the engine in SP3 mode when the setting is above SP4 (Safety Start is patent pending)

Three modes in which to start the engine

Select from three modes in which to start the engine: "Same as Last" mode, "Normal" mode or in "Safety" mode

Improved ECO-Mode

Compared to our FLAT model, the COMPACT model reduces the change rate to maximum of 80% even in full throttle, hence reducing acceleration and increasing fuel efficiency

3 Modes

Possible to change between three modes: SPORTS mode for higher acceleration response, ECO-mode for lower response and NORMAL mode for standard response.

12 steps

In the SPORTS mode, seven step ECO mode is a detailed adjustment of 12 all steps of five steps.

Acceleration Monitor

Open times of the accelerator (amount of depressing) are displayed and it is convenient for the eco-driving etc.

Easy Installation

Easy installation using car model specific coupling harness.

Initial Settings

Initial settings can be made for each type of car making it compatible with a wide range of models.

Digital Circuitry

The high-speed circuitry signal output is not affected by temperature or noise and hence guards against troubles and failures.

Normal Control when in Reverse

When the vehicle is put into reverse it will automatically return to normal acceleration (wiring where necessary). However, usually when using reverse the degree of acceleration is at most about 10%; in this range there is hardly any change so it is not necessary to wire for using reverse.

Safety System

The acceleration mode will automatically be returned to "Normal" if the product should break or fail, or if the two signals should separate.

Change Characteristics

Select from the 12 types of data.
3-drive·COMPACT Content of control


THC Basic wiring


Controller (Unit : mm)

Controller size 60×55×22mm

Sold Separately

TH Specialized Harness


Specialized Harness

THC-EC Extension Cable


Extension Cable

Extension Cable between the Specialized Harness and the Main Unit.

Learn more


  1. 1. This product is designed only for electronic throttle car models.
  2. 2. Before purchasing make sure to check the "Compatibility list".
  3. 3. Make sure to use the 3-drive harness.
  4. 4. Please carefully read the "User's manual" and carry out all operations with the utmost in safety.
  5. 5. Make sure to carry out "Initial Settings" before using the product.
  6. 6. Do not remodeling this product. It may cause damage not only to the product, but to the car and the operation of the car in which it is installed.