Throttle Position Sensor - Toyota 1NZ-FE User Manual

EG-34

Throttle Position Sensor

The throttle position sensor is mounted on the throttle body to detect the opening angle of the throttle valve.
The throttle position sensor converts the magnetic flux density that changes when the magnetic yoke
(located on the same axis as the throttle shaft) rotates around the Hall IC into electric signals to operate the
throttle control motor.
Throttle Position
Sensor
Magnetic Yoke
Hall
IC
Hall
IC
Service Tip
The inspection method differs from the conventional contact type throttle position sensor because
this non-contact type sensor uses a Hall IC.
For details, refer to the 2006 Yaris Repair Manual (Pub. No. RM00R0U).
ENGINE - 1NZ-FE ENGINE
Throttle Body
Throttle Position
Sensor Portion
Output
VTA1
Voltage
E
ECM
VC
VTA2
230LX12
Cross Section
V
5
VTA2
VTA1
0
Throttle
Valve
Fully Close
Throttle Valve Opening Angle
Magnetic
Yoke
Hall IC
00REG09Y
90_
Throttle
Valve
Fully Open
238EG79