Toyota 2GR-FE Manual page 319

Sensor Output Voltage (V)
Throttle Position
Sensor
Magnet
IC No. 1
VC
VTA1
VTA2
E2
IC No. 2
Magnet
DTC No.
Output voltage of VTA1 quickly fluctuates beyond lower
P0120 and upper malfunction thresholds for 2 seconds
(1 trip detection logic)
Output voltage of VTA1 is 0.2 V or less for 2 seconds
P0122
(1 trip detection logic)
Output voltage of VTA1 is 4.535 V or more for 2
P0123 seconds
(1 trip detection logic)
Output voltage of VTA2 quickly fluctuates beyond lower
P0220 and upper malfunction thresholds for 2 seconds
(1 trip detection logic)
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ECM
Note:
The throttle valve opening angle detected by the sensor terminal
VTA1 is expressed as percentages.
Between 10 % and 24 %: Throttle valve fully closed
Between 64 % and 96 %: Throttle valve fully open
Approximately 19 %: Fail-safe angle (6°)
DTC Detection Condition
Fail Safe Angle
5.0
VTA2
VTA1
2.55
2.25
0.93
0.69
6°
Usable Range
0°
Throttle Valve Opening Angle (degrees)
• Throttle Position (TP) sensor (built into throttle
body)
• ECM
• TP sensor (built into throttle body)
• Short in VTA1 circuit
• Open in VC circuit
• ECM
• TP sensor (built into throttle body)
• Open in VTA1 circuit
• Open in E2 circuit
• Short between VC and VTA1 circuits
• ECM
• TP sensor (built into throttle body)
• ECM
ES–163
84°
A019802E50
Trouble Area
ES