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In July 1993, the fourth and so far last generation of the Supra came on the market. Internationally, this type is called " Supra MKIV ".

In early 1986, the third generation of the Supra was introduced. It is also the first that has not been marketed with the suffix Celica.

The second generation was presented in the fall of 1981 and had a completely independent drive with the new (170 hp) 6-cylinder engines.

The first Supra built from spring 1978 to summer 1981 was still offered as a top version of the Celica first in Japan and later in the United States.

For vehicles with data link connector 2 (DLC2) - Introduction - Toyota Supra A80

The DLC2 is provided inside the cabin (located under the left side of instrument panel) as a connector exclusively for diagnosis of data from the engine, automatic transmission, ABS, A/C, Airbag, Traction Control and Cruise Control System to improve serviceability.
The DLC1 inside the engine compartment is used for engine adjustment.

Connecting the following terminals of the DLC2 to terminal E 1 selects the diagnosis mode shown.

Never make a mistake with the terminal connection position as this will cause a malfunction.

Terminal	Diagnosis Mode (System)
T_E1	Engine and automatic transmission (Normal mode)
T_E2 and T_E1	Engine and automatic transmission (Test mode)
T_C	ABS, A/C, Airbag, Traction Control and Cruise Control System
T_T	Automatic transmission

Refer to the respective system for the inspection method.
By connecting the DLC2 up to a monitor specifically designed for use with the DLC2, the diagnosis result for each system can be read easily.

This guide is based on the book edition Toyota (RM502U, 1997)