Accelerator Pedal Position Sensor - Toyota 1NZ-FE User Manual

Accelerator Pedal Position Sensor

The non-contact type accelerator pedal position sensor used a Hall IC.
D The magnetic yoke that is mounted at the accelerator pedal arm rotates around the Hall IC in accordance with
the amount of effort that is applied to the accelerator pedal. The Hall IC converts the changes in the magnetic
flux that occur at that time into electrical signals, and outputs them as of accelerator pedal effort to the ECM.
D The Hall IC contains circuits for the main and sub signals. It converts the accelerator pedal depressing
angles into electric signals with two differing characteristics and outputs them to the ECM.
A
Accelerator Pedal
Position Sensor
Magnetic Yoke
VPA
EPA
Hall
VCPA
IC
VPA2
Hall
IC
EPA2
VCP2
Service Tip
The inspection method differs from the conventional contact type accelerator pedal 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
A
Magnetic Yoke
V
5
Output
Voltage
ECM
0
Fully
Close
Accelerator Pedal Depressed Angle
228TU24
Internal Construction
Hall IC
A - A Cross Section
VPA2
VPA
EG-35
Accelerator
Pedal Arm
00SEG39Y
90_
Fully
Open
228TU25