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Without advanced keyless system and keyless entry system
WHEEL UNITS
ON-BOARD DIAGNOSIS FUNCTION
MALFUNCTION DETECTION FUNCTION
MALFUNCTION
KEYLESS
INFORMATION
RECEIVER
RF SIGNAL
End Of Sie
ON-BOARD DIAGNOSTIC SYSTEM FUNCTION (TIRE PRESSURE MONITORING SYSTEM)
Malfunction Detection Function
• The malfunction detection function detects malfunctions in the input/output signal system of the tire pressure
monitoring system (TPMS) control module based on abnormal signals from the wheel units when the ignition
switch is in the ON position or driving the vehicle.
• The TPMS warning light illuminates for approx. 3.0 s when the ignition switch is turned to the ON position to
inspect for open circuits in the light.
Malfunction Indication Function
• When the malfunction detection function detects a malfunction, the TPMS warning light illuminates to advise
the driver. Using the external tester communication function, DTCs can be output to the DLC-2 via the CAN
communication line. At the same time, malfunction detection results are sent to the memory functions.
Memory Function
• The memory function stores DTCs for malfunctions in input/output signal systems. With this function, once a
DTC is stored it is not cleared after the ignition switch has been turned off (LOCK position), even if the
malfunctioning signal system has returned to normal.
• Since instrument cluster has a built-in non-volatile memory, DTCs are not cleared even if the battery is
removed. Therefore, it is necessary to clear the memory after performing repairs. Refer to the Workshop
Manual for the DTC clearing procedure.
ON-BOARD DIAGNOSTIC
INSTRUMENT CLUSTER
MEMORY
FUNCTION
MALFUNCTION
DETERMINATION
MALFUNCTION
INDICATION
FUNCTION
PID/DATA
MONITOR
FUNCTION
ACTIVE
COMMAND
MODES
FUNCTION
DLC-2
CAN
DRIVER
TPMS
WARNING
LIGHT
TPMS
EXTERNAL
WARNING
TESTER
BUZZER
COMMUNICATION
FUNCTION
FLAT TIRE
WARNING
LIGHT
FLAT TIRE
WARNING
BUZZER
E5U020237020N02
02–02–3
02–02
E5U202ZS5003
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