Mazda 2004 RX-8, Особенности сервиса

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CONTROL SYSTEM
01–40–48
THROTTLE POSITION (TP) SENSOR CONSTRUCTION/OPERATION
CHU014018910S02
•
The sensor is built into the throttle body and
detects the throttle valve opening angle.
•
The Hall element design has been adopted for
the sensor.
•
A non contact type sensor has been adopted to
improve durability.
•
The TP sensor is composed of the main sensor
and sub sensor, and detects the throttle valve
opening angle with these two sensors (main and
sub).
•
Even if a malfunction occurs in either one of the
sensors, the detection is performed with a normal
sensor and drive-by-wire control is maintained.
•
If both the MAIN and SUB sensors for the TP
sensor malfunction, signals necessary for the drive-by-wire control are not input to the PCM and the drive-by-
wire control is disabled.
•
However, even though the drive-by-wire control is disabled, the throttle valve opening angle necessary for
minimum driving is maintained mechanically.
TP Sensor Voltage Characteristics
End Of Sie
ACCELERATOR PEDAL POSITION (APP) SENSOR FUNCTION
CHU014041600S01
•
Detects how much the AP is depressed.
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VALVE BODY
THROTTLE
VALVE
TP SENSOR
CHU0140S053
PCM
CPU
CPU
HALL ELEMENT
SENSOR
MAGNET
TP SENSOR
MAIN SENSOR
SUB SENSOR
HIGH
LOW
VOLTAGE
SMALL LARGE
THROTTLE VALVE
OPENING ANGLE
SUB
MAIN
CHU0140S055