Toyota Camry Hybrid AHV40 Manual page 226

EG-38
Throttle Position Sensor
D The no-contact type throttle position sensor uses a Hall IC, which is mounted on the throttle body.
D The Hall IC is surrounded by a magnetic yoke. The Hall IC converts the changes that occur in the
magnetic flux at that time into electrical signals and outputs them in the form of a throttle valve effort
to the THS ECU.
D The Hall IC contains circuits for the main and sub signals. It converts the throttle valve opening angles
into electric signals with two differing characteristics and outputs them to the THS ECU.
Throttle Valve
Throttle Position Sensor
Magnet
Hall
IC
Hall
IC
Magnet
Service Tip
The inspection method differs from the conventional throttle position sensor because this sensor
uses a hall IC. For details, refer to the 2007 Camry Hybrid Vehicle Repair Manual (Pub. No.
RM02H0U).
ENGINE - 2AZ-FXE ENGINE
Throttle Body
Throttle Position
Sensor Portion
A
Cross Section
VTA
ETA
Output
THS
Voltage
VCTA
ECU
VTA2
Reduction
Gears
View from A
Magnet
Hall IC
(for Throttle
Position Sensor)
Magnet
Throttle Control
Motor
V
5
4 VTA2
3
VTA
2
1
0
10 20 30 40 50 60 70 80 90
Throttle Valve
Fully Close
Throttle Valve Opening Angle
025EG13TE
Throttle Valve
Fully Open
02HEG57Y