ON-BOARD DIAGNOSTIC
02-02–3
02-02
ON-BOARD DIAGNOSTIC SYSTEM FUNCTION (TIRE PRESSURE MONITORING SYSTEM)
id020200100200
Malfunction Detection Function
!
The malfunction detection function detects malfunctions in the input/output signal system 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.
DTC Table
Malfunction location
DTC
TPMS warning light
illumination condition
TPMS warning light
illumination pattern
Instrument cluster
B1342
Illuminated
Non-volatile memory failure
B2143
Illuminated
System configuration malfunction
B2477
Illuminated
Wheel unit 1 internal fault
B2868
Illuminated
Wheel unit 2 internal fault
B2869
Illuminated
Wheel unit 3 internal fault
B2870
Illuminated
Wheel unit 4 internal fault
B2871
Illuminated
CAN system communication error
(HS-CAN)
U0073
Illuminated
Communication error to PCM
U0100
Lost communication with keyless
receiver
U0127
Abnormal massage from PCM
U2023
ON
OFF
1 s
0.2 s
ON
OFF
1 s
0.2 s
ON
OFF
0.5 s
0.5 s
ON
OFF
2 s
2 s
ON
OFF
1 s
0.2 s
Содержание 2009 RX-8
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