On-Board Diagnostic; On-Board Diagnostic System Outline (Tire Pressure Monitoring System); Block Diagram - Mazda 2006 MX-5 Service Highlights

ON-BOARD DIAGNOSTIC SYSTEM OUTLINE (TIRE PRESSURE MONITORING SYSTEM)

• The on-board diagnostic system consists of a malfunction detection system that detects abnormalities in input/
output signals when the ignition switch is at the ON position, a data monitor function that reads out specified
input/output signals, and an active command modes function that execuse the wheel unit ID registration.
• The Data Link Connector 2 (DLC-2), which groups together all the connectors used for malfunction diagnosis
into a single location, has been adopted, thereby improving serviceability. Diagnosis is performed by
connecting the WDS or equivalent to the DLC-2.
• In addition to DTC read-out, the WDS or equivalent is used to clear DTCs using the display screen of the
diagnostic tester, and to access the data monitor, providing enhanced malfunction diagnosis and improved
serviceability.

Block Diagram

With advanced keyless system or keyless entry system
WHEEL UNITS
ON-BOARD DIAGNOSIS FUNCTION
MALFUNCTION DETECTION FUNCTION
MALFUNCTION KEYLESS
INFORMATION RECEIVER
RF SIGNAL
KEYLESS
CM
02–02–2

ON-BOARD DIAGNOSTIC

INSTRUMENT CLUSTER
MEMORY
FUNCTION
MALFUNCTION
DETERMINATION
MALFUNCTION
INDICATION
FUNCTION
DLC-2
CAN
DRIVER
EXTERNAL
TESTER
COMMUNICATION
PID/DATA
FUNCTION
MONITOR
FUNCTION
ACTIVE
COMMAND
MODES
FUNCTION
E5U020237020N01
TPMS
WARNING
LIGHT
TPMS
WARNING
BUZZER
FLAT TIRE
WARNING
LIGHT
FLAT TIRE
WARNING
BUZZER
E5U202ZS5001