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.
Diagnosis Mode (System)
Engine and automatic transmission (Normal mode)
TE2 and TE1
Engine and automatic transmission (Test mode)
ABS, A/C, Airbag, Traction Control and Cruise Control System
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)