Block Diagram

Courtesy of MAZDA MOTORS CORP.

COMPONENT OPERATIONS

Component no.	Refer to
1	Input device
2	Module
3	Troubleshooting diagnosis area
4	Normal operation area
5	Malfunction detection function
6	PID/data monitor function
7	Memory function
8	Fail-safe function
9	External on-board diagnostic tester communication function
10	Malfunction indication function
11	Simulation function
12	Such as warning light
13	DLC-2
14	M-MDS
15	Output device