Mazda 2007 CX-9, Service Highlights

Page: 133 / 614

WHEEL AND TIRES
02-12–7
02-12
Low-pressure determination
•
When tire pressure data is lower than the detection value configured in the instrument cluster, the instrument
cluster determines that the tire for that wheel unit has low tire pressure.
—
If low tire pressure is determined when the ignition is on, the TPMS warning light is illuminated.
—
If low tire pressure is determined when the ignition is off, the instrument cluster performs an open-circuit
check
*1
on the TPMS warning light after the ignition is turned on, and then illuminates the TPMS warning
light.
•
The low-pressure determination is retained until tire pressure data from the applicable wheel unit returns to the
preset value.
—
If tire pressure data that is higher than the specified value is received when the ignition is on, the TPMS
control module turns out the TPMS warning light.
—
If tire pressure data that is higher than the specified value is received when the ignition is off, the module
performs an open-circuit check
*1
on the TPMS warning light after the ignition is turned on and turns out the
TPMS warning light.
*1
: The TPMS control modules turns on the TPMS warning light for 3 s after the ignition is turned on for an
open-circuit check of the TPMS warning light.
End Of Sie
TIRE PRESSURE MONITORING SYSTEM (TPMS) WARNING LIGHT CONSTRUCTION
id021200101100
•
The TPMS warning light is built into the
instrument cluster.
•
In the event of any abnormality in tire pressure or
in the system, signals illuminate the warning light
to alert the driver.
End Of Sie
CONTROLLER AREA NETWORK (CAN) OUTLINE
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•
The instrument cluster receives information using the CAN system. See Section 09 for detailed information
regarding the CAN system.
Received Information from PCM
•
Vehicle speed
End Of Sie
TPMS
WARNING
LIGHT
PRESET
AIR PRESSURE
SPECIFIED
AIR PRESSURE
LOW LIMIT
AIR PRESSURE
DETECTED
AIR PRESSURE
ON
OFF
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TPMS WARNING LIGHT
acxuun00000691
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