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SEF505V
Component Description
NGEC0287
A closed throttle position switch and wide open throttle position
switch are built into the throttle position sensor unit. The wide open
throttle position switch is used only for A/T control.
When the throttle valve is in the closed position, the closed throttle
position switch sends a voltage signal to the ECM. The ECM only
uses this signal to open or close the EVAP canister purge control
valve when the throttle position sensor is malfunctioning.
ECM Terminals and Reference Value
NGEC0288
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
28 BR/W
Throttle position switch
(Closed position)
[Ignition switch ON]
쐌 Warm-up condition
쐌 Accelerator pedal released
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch ON]
쐌 Accelerator pedal depressed
Approximately 0V
On Board Diagnosis Logic
NGEC0289
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0510 쐌 Battery voltage from the closed throttle position switch is
sent to ECM with the throttle valve opened.
쐌 Harness or connectors
(The closed throttle position switch circuit is
shorted.)
쐌 Closed throttle position switch
쐌 Throttle position sensor
DTC P0510 CLOSED THROTTLE POSITION SWITCH
KA24DE
Component Description
EC-433
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
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